Updated CodeBlocks LVGL simulator main.c file

README.md

@@ -10,7 +10,7 @@ So let's go !
 The W800 is a pretty interesting chip with impressive characteristics for its price (around 1$) :    
 ### Core :  
 * 32bit XT804 CPU
-* 240 Mhz max clock  
+* 240 MHz max clock  
 
 ### Memory :
 * 2 MB on chip flash
@@ -237,8 +237,8 @@ to save power
 (Need to work on sleep current :-( )
 |         Mode             | Current draw | Estimated battery life (600 mAh lipo) |
 |--------------------------|--------------|---------------------------------------|
-|Active (40Mhz clk)<br>(No BLE / No WiFi) |~52 mA         | ~11 hour              |
-|Active (240Mhz clk)<br>(No BLE / No WiFi)|~72 mA         | ~8 hour               |
+|Active (40MHz clk)<br>(No BLE / No WiFi) |~52 mA         | ~11 hour              |
+|Active (240MHz clk)<br>(No BLE / No WiFi)|~72 mA         | ~8 hour               |
 |Sleep                     |~4.5 mA       |~5 days and 12 hours                   |
 |Standby                   |~1.8 mA       |~13 days and 15 hours                  |
 

src/W800_SDK_v1.00.10/app/app_drivers/Makefile

@@ -6,7 +6,8 @@ GEN_LIBS = libappdrivers$(LIB_EXT)
 COMPONENTS_libappdrivers = lcd/libappdriverslcd$(LIB_EXT)	\
 						   mmc_sdio/libappdriversmmc_sdio$(LIB_EXT)	\
 						   i2c/libappdriversi2c$(LIB_EXT)	\
-						   watch_peripherals/libappdriverswatch_peripherals$(LIB_EXT)
+						   watch_peripherals/libappdriverswatch_peripherals$(LIB_EXT) \
+						   watch_power_management/libappdriverswatch_power_management$(LIB_EXT)
 endif
 
 #DEFINES +=

src/W800_SDK_v1.00.10/app/app_drivers/i2c/i2c.c

@@ -8,6 +8,7 @@
  * @copyright MIT
  * 
  */
+
 #include "wm_type_def.h"
 #include "wm_io.h"
 #include "wm_gpio_afsel.h"

src/W800_SDK_v1.00.10/app/app_drivers/i2c/i2c.h

@@ -7,6 +7,7 @@
  * 
  * @copyright MIT
  */
+
 #ifndef I2C_H
 #define I2C_H
 

src/W800_SDK_v1.00.10/app/app_drivers/mmc_sdio/mmc_sdio.c

@@ -64,6 +64,11 @@ void mmc_sdio_driver_write_dma_async(uint32_t *data, uint32_t dataLengthInBytes)
     if (dataLengthInBytes < 4)
     {
         APP_LOG_ERROR("send err, data length < 4");
+        /* Let's call the user DMATransferDoneFuncCb function if any to not stay stuck */
+        if(DMATransferDoneFuncCb)
+        {
+            DMATransferDoneFuncCb(DMATransferDoneArg);
+        }
         return;
     }
 

src/W800_SDK_v1.00.10/app/app_drivers/watch_peripherals/watch_peripherals.c

@@ -299,10 +299,10 @@ uint16_t watch_peripherals_get_battery_voltage(battery_unit_e unit)
 
     switch (unit)
     {
-    case battery_unit_mv:
+    case BATTERY_UNIT_MV:
         return batteryVoltage < 0 ? 0 : batteryVoltage;
         break;
-    case battery_unit_percent:
+    case BATTERY_UNIT_PERCENT:
         return battery_voltage_to_percentage(batteryVoltage < 0 ? 0 : batteryVoltage);
         break;
     default:
@@ -450,7 +450,7 @@ bool watch_peripherals_magnetometer_init(void)
     /* Needed but UGLY */
     tls_os_time_delay(2);
 
-    if(!QMC5883L_set_power_mode(QMC5883L_Mode_Control_Continuous))
+    if(!QMC5883L_set_power_mode(QMC5883L_Mode_Control_Standby))
     {
         APP_LOG_ERROR("Failed to set QMC5883L mode");
         return false;

src/W800_SDK_v1.00.10/app/app_drivers/watch_peripherals/watch_peripherals.h

@@ -4,6 +4,7 @@
  */
 #ifndef WATCH_PERIPHERALS_H
 #define WATCH_PERIPHERALS_H
+
 #include "lcd.h"
 #include "wm_type_def.h"
 #include "QMC5883L.h"
@@ -12,8 +13,8 @@
 
 typedef enum battery_unit
 {
-    battery_unit_mv = 0,
-    battery_unit_percent
+    BATTERY_UNIT_MV = 0,
+    BATTERY_UNIT_PERCENT
 } battery_unit_e;
 
 typedef enum battery_controller_status

src/W800_SDK_v1.00.10/app/app_drivers/watch_power_management/Makefile

@@ -0,0 +1,15 @@
+TOP_DIR = ../../..
+sinclude $(TOP_DIR)/tools/w800/conf.mk
+
+ifndef PDIR
+GEN_LIBS = libappdriverswatch_power_management$(LIB_EXT)
+endif
+
+#DEFINES +=
+
+sinclude $(TOP_DIR)/tools/w800/rules.mk
+
+INCLUDES := $(INCLUDES) -I $(PDIR)include
+
+PDIR := ../$(PDIR)
+sinclude $(PDIR)Makefile

src/W800_SDK_v1.00.10/app/app_drivers/watch_power_management/watch_power_management.c

@@ -0,0 +1,10 @@
+/**
+ * @file watch_power_management.h
+ * @author Anatole SCHRAMM-HENRY
+ * @brief Watch power management functions API header file
+ * @version 0.1
+ * @date 2023-10-12
+ * 
+ * @copyright MIT
+ * 
+ */

src/W800_SDK_v1.00.10/app/app_drivers/watch_power_management/watch_power_management.h

@@ -0,0 +1,55 @@
+/**
+ * @file watch_power_management.h
+ * @author Anatole SCHRAMM-HENRY
+ * @brief Watch power management functions API header file
+ * @version 0.1
+ * @date 2023-10-12
+ * 
+ * @copyright MIT
+ * 
+ */
+
+#ifndef WATCH_POWER_MANAGEMENT_H
+#define WATCH_POWER_MANAGEMENT_H
+
+typedef enum watch_power_state
+{
+    /**
+     * @brief WATCH_POWER_STATE_IDLE : the watch has the display on and the screen is showing something,
+     * to save power, the MCU is running at a low clock speed (40 MHz), animations, transitions and other graphical effects might not be smooth.
+     */
+    WATCH_POWER_STATE_IDLE,
+    /**
+     * @brief WATCH_POWER_STATE_FULL_SPEED : the watch has the display on and the screen is showing something,
+     * to have the best graphical user experience, the MCU is running at a higher clock speed giving better animations,
+     * transitions and other graphical effects at the expense of a higher power consumption.
+     */
+    WATCH_POWER_STATE_FULL_SPEED,
+    /**
+     * @brief WATCH_POWER_STATE_SLEEP : the watch is put in sleep state this means that the MCU stops, data in RAM is kept,
+     * the display is completely switched off and the wake up is fast.
+     * The watch will wakeup after user interaction is detected : tilt of the wrist, screen touched.
+     * The watch will continue executing the firmware where it last was.
+     * This mode allows for a low power consumption of around 4 mA.
+     */
+    WATCH_POWER_STATE_SLEEP,
+    /**
+     * @brief WATCH_POWER_STATE_BLE_SLEEP : the watch will enter this mode instead of the WATCH_POWER_STATE_SLEEP state
+     * if the BLE modem is running. This is because the MCU can not be put to sleep to keep the Bluetooth Low Energy stack running.
+     * The min clock speed should be set to 40MHz and NOT lower.
+     */
+    WATCH_POWER_STATE_BLE_SLEEP,
+    /**
+     * @brief WACTH_POWER_STATE_STANDBY : in this state, the watch should achieve it's the lowest power consumption,
+     * data in RAM is lost and on user events (tilt of the wrist, screen touched), the watch reboots.
+     * This mode allows for a low power consumption of around 2 mA.
+     */
+    WACTH_POWER_STATE_STANDBY,
+} watch_power_state_e;
+
+typedef struct watch_power_management
+{
+    watch_power_state_e current_power_state;
+} watch_power_management_t;
+
+#endif //WATCH_POWER_MANAGEMENT_H

src/W800_SDK_v1.00.10/app/ble/gadget_bridge.c

@@ -6,6 +6,7 @@
  * @version 0.1
  * @date 2023-04-05
  * Updated : 2023-10-15, fixed potential memory leak.
+ * Updated : 2023-10-17, fixed potential issue where a double quote is added at the start of a parsed string.
  * 
  * @copyright MIT
  * 
@@ -256,7 +257,7 @@ gadget_bridge_parser_code_e gadget_bridge_parser_run(void)
     {
         case GADGET_BRIDGE_PARSER_FSM_NEW_MESSAGE:
 
-            // To prevent a potential memory leak if the parser is fed with bad data
+            // To prevent a potential memory leak if the parser is fed with ill formed data
             _free_event_data();
 
             if((start = strstr(_gadget_bridge_internals.buffer, "setTime("))
@@ -435,7 +436,7 @@ gadget_bridge_parser_code_e gadget_bridge_parser_run(void)
             else to_return = GADGET_BRIDGE_PARSER_CODE_OK;
             break;
         case GADGET_BRIDGE_PARSER_FSM_FOUND_ID_SRC:
-            if((start = strstr(_gadget_bridge_internals.buffer, "src:")) &&
+            if((start = strstr(_gadget_bridge_internals.buffer, "src:\"")) &&
             ((end = strstr(_gadget_bridge_internals.buffer, ",title")) || (end2 = strstr(_gadget_bridge_internals.buffer, ",subject"))))
             {
                 if((end && !end2) || (end != NULL && end < end2))
@@ -465,7 +466,7 @@ gadget_bridge_parser_code_e gadget_bridge_parser_run(void)
             else to_return = GADGET_BRIDGE_PARSER_CODE_OK;
             break;
         case GADGET_BRIDGE_PARSER_FSM_FOUND_TITLE:
-            if((start = strstr(_gadget_bridge_internals.buffer, "title:")))
+            if((start = strstr(_gadget_bridge_internals.buffer, "title:\"")))
             {
                 //printf("###Parsing TITLE content\n");
 
@@ -488,7 +489,6 @@ gadget_bridge_parser_code_e gadget_bridge_parser_run(void)
             if(end)
             {
                 //printf("###Found BODY\n");
-
                 _parser_extract_char_str(_gadget_bridge_internals.buffer, end - 1, &_gadget_bridge_internals.event_data.notification.title);
 
                 // We remove the parsed part from the buffer
@@ -519,7 +519,7 @@ gadget_bridge_parser_code_e gadget_bridge_parser_run(void)
         }
             break;
         case GADGET_BRIDGE_PARSER_FSM_FOUND_SRC_BODY:
-            if((start = strstr(_gadget_bridge_internals.buffer, "body:")))
+            if((start = strstr(_gadget_bridge_internals.buffer, "body:\"")))
             {
                 //printf("###Parsing BODY content\n");
 
@@ -603,7 +603,6 @@ gadget_bridge_parser_code_e gadget_bridge_parser_run(void)
             {
                 // We don't care about the sender nor the tel tag
                 //printf("###TEST NOTIFICATION Type done\n");
-
                 _parser_extract_char_str(_gadget_bridge_internals.buffer, end - 1, &_gadget_bridge_internals.event_data.notification.body);
 
                 // We remove the parsed part from the buffer
@@ -711,7 +710,7 @@ gadget_bridge_parser_code_e gadget_bridge_parser_run(void)
             _gadget_bridge_internals.gadget_bridge_parser_fsm = GADGET_BRIDGE_PARSER_FSM_NEW_MESSAGE;
             break;*/
         case GADGET_BRIDGE_PARSER_FSM_FOUND_SUBJECT:
-            if((start = strstr(_gadget_bridge_internals.buffer, "subject:")))
+            if((start = strstr(_gadget_bridge_internals.buffer, "subject:\"")))
             {
                 //printf("###Parsing SUBJECT content\n");
 

src/W800_SDK_v1.00.10/app/ble/gadget_bridge.h

@@ -201,7 +201,7 @@ typedef struct gadget_bridge_event_data
     };
 } gadget_bridge_event_data_t;
 
-typedef void (*parser_event_callback_t)(const gadget_bridge_event_data_t *gadget_bridge_event_data);
+typedef void (*parser_event_callback_t)(gadget_bridge_event_data_t *gadget_bridge_event_data);
 
 /**
  * @brief Sends an Android toast to GadgetBridge to be displayed on the phone.

src/W800_SDK_v1.00.10/app/gfx/compass_screen.c

@@ -20,7 +20,6 @@ static const char *cardinals[] =
 static void gesture_event_cb(lv_event_t * e)
 {
     CompassScreen_t *compassScreen = e->user_data;
-    (void)compassScreen;
 
     lv_dir_t gesture;
     switch(gesture = lv_indev_get_gesture_dir(lv_indev_get_act()))
@@ -30,6 +29,8 @@ static void gesture_event_cb(lv_event_t * e)
         break;
     case LV_DIR_RIGHT:
         LV_LOG_USER("GESTURE : RIGHT");
+        // We delete the refresh timer
+        lv_timer_del(compassScreen->refreshTimer);
         // We create the menu screen and switch to it
         extern MenuScreen_t menuScreen;
         menu_screen_create(&menuScreen);
@@ -53,6 +54,23 @@ static void cleanup_event_cb(lv_event_t * e)
     LV_LOG_USER("cleanup");
 }
 
+static void _compass_screen_refresh_timer_cb(lv_timer_t *timer)
+{
+    CompassScreen_t *compassScreen = timer->user_data;
+
+    if(compassScreen->compassScreenAzimuthAndTemperatureCb)
+    {
+        uint16_t azimuth = 0;
+        float temperature = 0.0f;
+        bool refreshAzimuth = true, refreshTemperature = true;
+
+        compassScreen->compassScreenAzimuthAndTemperatureCb(&azimuth, &refreshAzimuth, &temperature, &refreshTemperature);
+
+        if(refreshAzimuth)compass_screen_set_azimuth(compassScreen, azimuth);
+        if(refreshTemperature)compass_screen_set_temperature(compassScreen, temperature);
+    }
+}
+
 static void create_cardinal(CompassCardinal_t *cardidanl, const char *cardinalText, lv_color_t textColor, lv_coord_t x, lv_coord_t y, lv_obj_t *parent)
 {
     cardidanl->label = lv_label_create(parent);
@@ -93,6 +111,29 @@ void compass_screen_init(CompassScreen_t * const compassScreen)
 
     memset(compassScreen, 0, sizeof(CompassScreen_t));
     strcpy(compassScreen->compassAzimuth.text, "0° N");
+    strcpy(compassScreen->compassTemperature.text, "0.00°C");
+}
+
+void compass_screen_register_on_state_change_cb(CompassScreen_t * const compassScreen, CompassScreenOnStateChangeCb_t compassScreenOnStateChangeCb)
+{
+    if(!compassScreen)
+    {
+        LV_LOG_ERROR("NULL pointer given !");
+        return;
+    }
+
+    compassScreen->compassScreenOnStateChangeCb = compassScreenOnStateChangeCb;
+}
+
+void compass_screen_register_azimuth_and_temperature_cb(CompassScreen_t * const compassScreen, CompassScreenAzimuthAndTemperatureCb_t compassScreenAzimuthAndTemperatureCb)
+{
+    if(!compassScreen)
+    {
+        LV_LOG_ERROR("NULL pointer given !");
+        return;
+    }
+
+    compassScreen->compassScreenAzimuthAndTemperatureCb = compassScreenAzimuthAndTemperatureCb;
 }
 
 void compass_screen_set_azimuth(CompassScreen_t * const compassScreen, uint16_t azimuth)
@@ -317,6 +358,18 @@ void compass_screen_create(CompassScreen_t * const compassScreen)
     lv_obj_add_event_cb(compassScreen->display, &(gesture_event_cb), LV_EVENT_GESTURE, compassScreen);
     //We register the event callback to handle the cleanup
     lv_obj_add_event_cb(compassScreen->display, &(cleanup_event_cb), LV_EVENT_DELETE, compassScreen);
+
+    //We create the refresh timer
+    if(compassScreen->refreshTimer)
+    {
+        LV_LOG_ERROR("refreshTimer should be NULL here !");
+        lv_timer_del(compassScreen->refreshTimer);
+        compassScreen->refreshTimer = NULL;
+    }
+
+    if(compassScreen->compassScreenOnStateChangeCb) compassScreen->compassScreenOnStateChangeCb(COMPASS_SCREEN_STATE_OPENED);
+
+    compassScreen->refreshTimer = lv_timer_create(&(_compass_screen_refresh_timer_cb), 20, compassScreen);
 }
 
 void compass_screen_destroy(CompassScreen_t * const compassScreen)
@@ -337,4 +390,7 @@ void compass_screen_destroy(CompassScreen_t * const compassScreen)
     compassScreen->northMarker              = NULL;
     //compassScreen->compassGraduation.meter  = NULL;
     //compassScreen->compassGraduation.scale  = NULL;
+    compassScreen->refreshTimer             = NULL;
+
+    if(compassScreen->compassScreenOnStateChangeCb) compassScreen->compassScreenOnStateChangeCb(COMPASS_SCREEN_STATE_CLOSED);
 }

src/W800_SDK_v1.00.10/app/gfx/compass_screen.h

@@ -22,6 +22,15 @@ typedef struct CompassCardinal
     lv_meter_scale_t *scale;
 } CompassGraduation_t;*/
 
+typedef enum CompassScreenState
+{
+    COMPASS_SCREEN_STATE_OPENED = 0,
+    COMPASS_SCREEN_STATE_CLOSED
+} CompassScreenState_e;
+
+typedef void (*CompassScreenOnStateChangeCb_t)(CompassScreenState_e compassScreenState);
+typedef void (*CompassScreenAzimuthAndTemperatureCb_t)(uint16_t *azimuth, bool *refreshAzimuth, float *temperature, bool *refreshTemperature);
+
 /* Compass screen context object */
 typedef struct CompassScreen
 {
@@ -37,6 +46,11 @@ typedef struct CompassScreen
 
     CompassLabel_t compassAzimuth;
     CompassLabel_t compassTemperature;
+
+    CompassScreenOnStateChangeCb_t compassScreenOnStateChangeCb;
+    CompassScreenAzimuthAndTemperatureCb_t compassScreenAzimuthAndTemperatureCb;
+
+    lv_timer_t *refreshTimer;
 } CompassScreen_t;
 
 /**
@@ -47,6 +61,26 @@ typedef struct CompassScreen
  */
 void compass_screen_init(CompassScreen_t * const compassScreen);
 
+/**
+ * @brief Registers a callback function which will be called every time the state of the application changes ie : is opened or closed.
+ *        This callback should be used to initialize and deinitialize needed devices drivers like the magnetometer or the temperature sensor.
+ * @note The state of the application is passed as a parameter or the callback function. 
+ * 
+ * @param compassScreen a pointer to the compass screen object structure.
+ * @param compassScreenOnStateChangeCb the callback of type @ref CompassScreenOnStateChangeCb_t to register.
+ */
+void compass_screen_register_on_state_change_cb(CompassScreen_t * const compassScreen, CompassScreenOnStateChangeCb_t compassScreenOnStateChangeCb);
+
+/**
+ * @brief Registers a callback function which will be executed every time the compass refreshes.
+ *        This callback should retrieve the azimuth and temperature and pass it through the provided pointers.
+ * @note If no new magnetometer or temperature data is available upon the function call, set the associated refresh parameter to false;
+ * 
+ * @param compassScreen a pointer to the compass screen object structure.
+ * @param compassScreenOnStateChangeCb the callback of type CompassScreenAzimuthAndTemperatureCb_t to register.
+ */
+void compass_screen_register_azimuth_and_temperature_cb(CompassScreen_t * const compassScreen, CompassScreenAzimuthAndTemperatureCb_t compassScreenAzimuthAndTemperatureCb);
+
 /**
  * @brief Sets the azimuth in degrees (relative to the north) to show on the compass UI.
  * 

src/W800_SDK_v1.00.10/app/gfx/gfx_task.c

@@ -13,6 +13,7 @@
 #include "find_my_phone_screen.h"
 #include "music_player_screen.h"
 #include "settings_screen.h"
+#include "notification_screen.h"
 #include "watch_peripherals.h"
 #include "watch_settings.h"
 #include "firmware_version.h"
@@ -38,6 +39,7 @@ MenuScreen_t menuScreen;
 CompassScreen_t compassScreen;
 FindMyPhoneScreen_t findMyPhoneScreen;
 MusicPlayerScreen_t musicPlayerScreen;
+NotificationScreen_t notificationScreen;
 
 SettingsScreen_t settingsScreen;
 
@@ -362,7 +364,7 @@ static uint16_t angle_with_offset(uint16_t angle, uint16_t offset)
     return (angle + offset) >= 360 ? angle + offset - 360 : angle + offset;
 }
 
-static void parser_event_cb(const gadget_bridge_event_data_t *gadget_bridge_event_data)
+static void parser_event_cb(gadget_bridge_event_data_t *gadget_bridge_event_data)
 {
     APP_LOG_INFO("[GB]Event of type : %s\n", gadget_bridge_event_type_2_str(gadget_bridge_event_data->event_type));
 
@@ -396,6 +398,23 @@ static void parser_event_cb(const gadget_bridge_event_data_t *gadget_bridge_even
             }
             music_player_screen_set_music_position(&musicPlayerScreen, gadget_bridge_event_data->music_state.position_in_seconds);
             break;
+        case GADGET_BRIDGE_EVENT_TYPE_NOTIFY:
+        {
+            // Let's retrieve the time from the watch :
+            struct tm date_time; 
+            tls_get_rtc(&date_time);
+
+            notification_screen_notify(&notificationScreen, gadget_bridge_event_data->notification.handle,
+            mktime(&date_time),
+            gadget_bridge_event_data->notification.notification_type,
+            gadget_bridge_event_data->notification.title,
+            gadget_bridge_event_data->notification.body);
+
+            //As we don't want the title and the body strings to be freed after the callback returns, let's set them to NULL
+            gadget_bridge_event_data->notification.title = NULL;
+            gadget_bridge_event_data->notification.body = NULL;
+        }
+            break;
         default:
             APP_LOG_INFO("Not yet handled\n");
     }
@@ -481,6 +500,50 @@ static void scan_result_cb(void)
     tls_mem_free(buffer);
 }
 
+static void compass_screen_on_state_change_cb(CompassScreenState_e compassScreenState)
+{
+    switch(compassScreenState)
+    {
+        case COMPASS_SCREEN_STATE_OPENED:
+            watch_peripherals_magnetometer_power_mode_set(QMC5883L_Mode_Control_Continuous);
+            break;
+        case COMPASS_SCREEN_STATE_CLOSED:
+        default:
+            watch_peripherals_magnetometer_power_mode_set(QMC5883L_Mode_Control_Standby);
+            break;
+    }
+}
+
+static void settings_screen_on_state_change_cb(SettingsScreenState_e settingsScreenState, SettingsScreenCategory_e settingsScreenCategory)
+{
+    switch(settingsScreenState)
+    {
+        case SETTINGS_SCREEN_STATE_OPENED:
+            if(settingsScreenCategory == SETTINGS_SCREEN_CATEGORY_ABOUT)
+            {
+                watch_peripherals_magnetometer_power_mode_set(QMC5883L_Mode_Control_Continuous);
+            }
+            break;
+        case SETTINGS_SCREEN_STATE_CLOSED:
+            if(settingsScreenCategory == SETTINGS_SCREEN_CATEGORY_ABOUT)
+            {
+                watch_peripherals_magnetometer_power_mode_set(QMC5883L_Mode_Control_Standby);
+            }
+            break;
+        default:
+            break;
+    }
+}
+
+static float bmp_temperature = 0;
+
+static void compass_screen_azimuth_and_temperature_cb(uint16_t *azimuth, bool *refreshAzimuth, float *temperature, bool *refreshTemperature)
+{
+    uint16_t sensor_azimuth = watch_peripherals_magnetometer_azimuth_read(refreshAzimuth);
+    *azimuth = angle_with_offset(sensor_azimuth, 270);
+    *temperature = bmp_temperature;
+}
+
 static void sendFindMyPhoneBLECommandCb(bool findMyPhone)
 {
     gadget_bridge_send_find_phone(findMyPhone);
@@ -514,7 +577,7 @@ void gfx_task(void *param)
     /* Let's init all the watch's sensors */
     watch_peripherals_pressure_sensor_init();
     watch_peripherals_magnetometer_init();
-    watch_peripherals_magnetometer_calibration_data_set(-3120, 1050, 1140, 5200, 1200, 3200, 30.0);
+    watch_peripherals_magnetometer_calibration_data_set(-7200, -2700, -1300, 3300, 1200, 3200, 30.0);
     watch_peripherals_accelerometer_init();
     watch_peripherals_accelerometer_wrist_wakeup_enable(persistency_get_settings()->display.display_wrist_wakeup);
     watch_peripherals_accelerometer_step_counter_enable(true);
@@ -524,7 +587,7 @@ void gfx_task(void *param)
     APP_LOG_DEBUG("MAX3010X enable temp int %d", MAX3010X_enable_die_temperature_int(true));*/
 
     /* Make the first battery voltage reading here */
-    _battery_stats.battery_voltage = watch_peripherals_get_battery_voltage(battery_unit_mv);
+    _battery_stats.battery_voltage = watch_peripherals_get_battery_voltage(BATTERY_UNIT_MV);
     _battery_stats.battery_percentage = battery_voltage_to_percentage(_battery_stats.battery_voltage);
     ble_service_set_battery_value(_battery_stats.battery_percentage);
 
@@ -553,6 +616,8 @@ void gfx_task(void *param)
     watch_face_init(&watchFace);
     menu_screen_init(&menuScreen);
     compass_screen_init(&compassScreen);
+    compass_screen_register_on_state_change_cb(&compassScreen, &(compass_screen_on_state_change_cb));
+    compass_screen_register_azimuth_and_temperature_cb(&compassScreen, &(compass_screen_azimuth_and_temperature_cb));
 
     find_my_phone_screen_init(&findMyPhoneScreen);
     find_my_phone_screen_register_BLE_command_send_cb(&findMyPhoneScreen, &(sendFindMyPhoneBLECommandCb));
@@ -561,7 +626,10 @@ void gfx_task(void *param)
     music_player_screen_register_music_playback_control_cb(&musicPlayerScreen, &(sendMusicPlaybackBLECommandCb));
     music_player_screen_register_music_player_time_ref_ms_cb(&musicPlayerScreen, &(elapsed_ms));
 
+    notification_screen_init(&notificationScreen);
+
     settings_screen_init(&settingsScreen);
+    settings_screen_register_on_state_change_cb(&settingsScreen, &(settings_screen_on_state_change_cb));
     settings_screen_register_API_interface(&settingsScreen, &settingsScreenAPIInterface);
 
     watch_face_register_date_time_cb(&watchFace, &(date_time_cb));
@@ -584,8 +652,6 @@ void gfx_task(void *param)
 
     /* Enable WiFi hotspot scanning for antenna performance test purposes */
     //tls_wifi_scan_result_cb_register(&(scan_result_cb));
-
-    float temperature = 0;
     float pressure = 0;
     
     uint32_t ble_info_update_ms = 0;
@@ -593,29 +659,12 @@ void gfx_task(void *param)
 
     for(;;)
     {
+        
         /* Actions to perform when the watch is active only */
         if(!_is_in_ble_sleep_mode)
         {
             lv_timer_handler();
 
-            if(compass_screen_is_in_use(&compassScreen))
-            {
-                bool is_data_available = false;
-                uint16_t azimuth = watch_peripherals_magnetometer_azimuth_read(&is_data_available);
-
-                if(is_data_available)
-                {
-                    /*
-                    QMC5883L_MData_t MDataRaw = watch_peripherals_magnetometer_raw_data_read();
-                    APP_LOG_TRACE("X %d Y %d Z %d", MDataRaw.MFieldX, MDataRaw.MFieldY, MDataRaw.MFieldZ);
-                    */
-
-                    compass_screen_set_azimuth(&compassScreen, angle_with_offset(azimuth, 270));
-                }
-
-                compass_screen_set_temperature(&compassScreen, temperature);
-            }
-
             /* Throttle CPU freq down when inactive to save power or to increase responsiveness */
             tls_sys_clk clk;
             tls_sys_clk_get(&clk);
@@ -624,7 +673,7 @@ void gfx_task(void *param)
                 if(clk.cpuclk != 40)
                 {
                     tls_sys_clk_set(CPU_CLK_40M);
-                    APP_LOG_DEBUG("CPU 40Mhz");
+                    APP_LOG_DEBUG("CPU 40MHz");
                 }   
             }
             else
@@ -632,7 +681,7 @@ void gfx_task(void *param)
                 if(clk.cpuclk != 160)
                 {
                     tls_sys_clk_set(CPU_CLK_160M);
-                    APP_LOG_DEBUG("CPU 160Mhz");
+                    APP_LOG_DEBUG("CPU 160MHz");
                 }
             }
 
@@ -692,7 +741,6 @@ void gfx_task(void *param)
                 /* On wake up, we force the watch face to sync up with the rtc /!\ RTC update delay WTF ? */
                 tls_os_time_delay(1);
                 watch_face_force_sync(&watchFace);
-                watch_peripherals_magnetometer_power_mode_set(QMC5883L_Mode_Control_Continuous);
                 
                 lcd_sleep(&LCDConfig, false);
                 lcd_on(&LCDConfig, false);
@@ -707,12 +755,12 @@ void gfx_task(void *param)
         {
             main_data_update = elapsed_ms();
 
-            pressure = watch_peripherals_pressure_sensor_get_pressure(&temperature);
+            pressure = watch_peripherals_pressure_sensor_get_pressure(&bmp_temperature);
 
-            _battery_stats.battery_voltage = watch_peripherals_get_battery_voltage(battery_unit_mv);
+            _battery_stats.battery_voltage = watch_peripherals_get_battery_voltage(BATTERY_UNIT_MV);
             _battery_stats.battery_percentage = battery_voltage_to_percentage(_battery_stats.battery_voltage);
             APP_LOG_DEBUG("GFX thread, temp : %0.2f °C, press : %0.2f hPa, battery(%s) : %u mV <-> %u %%",
-                            temperature,
+                            bmp_temperature,
                             pressure/100,
                             battery_controller_status_2_str(watch_peripherals_get_battery_controller_status()),
                             _battery_stats.battery_voltage,
@@ -726,7 +774,7 @@ void gfx_task(void *param)
         {
             _interrupts_statuses.battery_controller_status = false;
             //Let's refresh the battery percentage as well:
-            _battery_stats.battery_voltage = watch_peripherals_get_battery_voltage(battery_unit_mv);
+            _battery_stats.battery_voltage = watch_peripherals_get_battery_voltage(BATTERY_UNIT_MV);
             _battery_stats.battery_percentage = battery_voltage_to_percentage(_battery_stats.battery_voltage);
             ble_service_set_battery_value(_battery_stats.battery_percentage);
             watch_face_set_battery_indicator(&watchFace, _battery_stats.battery_percentage, watch_peripherals_get_battery_controller_status());
@@ -762,7 +810,6 @@ void gfx_task(void *param)
                 lv_port_tick_start();
 
                 watch_face_force_sync(&watchFace);
-                watch_peripherals_magnetometer_power_mode_set(QMC5883L_Mode_Control_Continuous);
                 
                 lcd_sleep(&LCDConfig, false);
                 lcd_on(&LCDConfig, false);

src/W800_SDK_v1.00.10/app/gfx/notification_screen.c

@@ -0,0 +1,331 @@
+#include "notification_screen.h"
+#include <stdio.h>
+#include <stdlib.h>
+#include "wm_mem.h"
+
+/* Internal API to manage notification objects */
+bool _notification_list_is_empty(NotificationDataList_t notificationList);
+void _notification_list_add_head(NotificationDataList_t *notificationList, NotificationData_t *notification);
+NotificationData_t *_notification_list_remove_tail(NotificationDataList_t *notificationList);
+uint8_t _notification_list_count(NotificationDataList_t notificationList);
+
+void _notification_list_debug(NotificationDataList_t notificationList);
+/* Internal UI API */
+void _display_message_notification(NotificationScreen_t * const notificationScreen, const NotificationData_t *notification);
+void _notification_popup_destroy(NotificationScreen_t * const notificationScreen);
+const char *_notification_type_to_char(NotificationType_e notificationType);
+const char *_notification_timestamp_to_date(time_t timestamp);
+
+static void notification_scrolled_event_cb(lv_event_t *e)
+{
+    NotificationScreen_t *notificationScreen = lv_event_get_user_data(e);
+    //If we didn't scroll down enough, make the notif pop again
+    if(lv_obj_get_scroll_y(e->target) >= 83)
+    {
+        lv_obj_scroll_to_y(e->target, 166, LV_ANIM_ON);
+    }
+    //Else we know that the user wants to close the notification, so we do it with an animation to reach 0
+    else if(lv_obj_get_scroll_y(e->target) != 0)
+    {
+        lv_obj_scroll_to_y(e->target, 0, LV_ANIM_ON);
+    }
+    else //We scrolled enough to tell that we saw the notification and that we want to close it
+    {
+        LV_LOG_USER("Notification closed");
+        _notification_popup_destroy(notificationScreen);
+        if(notificationScreen->notificationOnStateChangeCb) notificationScreen->notificationOnStateChangeCb(NOTIFICATION_STATE_CLEARED);
+    }
+}
+
+void notification_screen_init(NotificationScreen_t * const notificationScreen)
+{
+    if(!notificationScreen)
+    {
+        LV_LOG_ERROR("NULL pointer given !");
+        return;
+    }
+
+    memset(notificationScreen, 0, sizeof(NotificationScreen_t));
+
+    //Let's initialize the list of free notifications from the pool
+    for(uint8_t i = 0; i < MAX_NOTIFICATIONS_COUNT; i++)
+        _notification_list_add_head(&notificationScreen->freeNotificationList, notificationScreen->notificationPool + i);
+}
+
+void notification_screen_register_on_state_change_cb(NotificationScreen_t * const notificationScreen, NotificationOnStateChangeCb_t notificationOnStateChangeCb)
+{
+    if(!notificationScreen)
+    {
+        LV_LOG_ERROR("NULL pointer given !");
+        return;
+    }
+
+    notificationScreen->notificationOnStateChangeCb = notificationOnStateChangeCb;
+}
+
+void notification_screen_notify(NotificationScreen_t * const notificationScreen, uint32_t handle, time_t dateOfArrival, NotificationType_e notificationType, char * title, char * body)
+{
+    if(!notificationScreen)
+    {
+        LV_LOG_ERROR("NULL pointer given !");
+        return;
+    }
+
+    NotificationData_t *notification = NULL;
+
+    //We try to get a notification from the free list.
+    if((notification = _notification_list_remove_tail(&notificationScreen->freeNotificationList)) == NULL)
+    {
+        //If that fails, we reuse the oldest notification from the used list.
+        if((notification = _notification_list_remove_tail(&notificationScreen->notificationList)) == NULL)
+        {
+            //That's bad
+            LV_LOG_ERROR("Unable to find a notification to reuse !");
+            return;
+        }
+
+        //Don't forget to free the allocated strings if not already done
+        tls_mem_free(notification->title);
+        tls_mem_free(notification->body);
+    }
+
+    notification->handle = handle;
+    notification->dateOfArrival = dateOfArrival;
+    notification->type = notificationType;
+    notification->title = title;
+    notification->body = body;
+    notification->read = false;
+
+    _notification_list_add_head(&notificationScreen->notificationList, notification);
+
+    switch(notificationType)
+    {
+    case NOTIFICATION_TYPE_CALL:
+        break;
+    default:
+        _display_message_notification(notificationScreen, notification);
+        if(notificationScreen->notificationOnStateChangeCb) notificationScreen->notificationOnStateChangeCb(NOTIFICATION_STATE_DISPLAYED);
+    }
+}
+
+void notification_screen_destroy(NotificationScreen_t * const notificationScreen)
+{
+    if(!notificationScreen)
+    {
+        LV_LOG_ERROR("NULL pointer given !");
+        return;
+    }
+}
+
+bool _notification_list_is_empty(NotificationDataList_t notificationList)
+{
+    return notificationList == NULL;
+}
+
+void _notification_list_add_head(NotificationDataList_t *notificationList, NotificationData_t *notification)
+{
+    if(!notificationList || !notification) return;
+
+    if(_notification_list_is_empty(*notificationList))
+        *notificationList = notification;
+    else
+    {
+        notification->next = *notificationList;
+        *notificationList = notification;
+    }
+}
+
+NotificationData_t *_notification_list_remove_tail(NotificationDataList_t *notificationList)
+{
+    if(!notificationList) return NULL;
+
+    if(_notification_list_is_empty(*notificationList)) return NULL;
+
+    NotificationData_t *toReturn = NULL;
+
+    //There is only one item in the list
+    if((*notificationList)->next == NULL)
+    {
+        toReturn = *notificationList;
+        *notificationList = NULL;
+        return toReturn;
+    }
+
+    NotificationDataList_t cursor = *notificationList;
+    while(!_notification_list_is_empty(cursor->next->next))
+    {
+        cursor = cursor->next;
+    }
+
+    toReturn = cursor->next;
+    cursor->next = NULL;
+    return toReturn;
+}
+
+uint8_t _notification_list_count(NotificationDataList_t notificationList)
+{
+    uint8_t count = 0;
+    while(!_notification_list_is_empty(notificationList))
+    {
+        notificationList = notificationList->next;
+        count++;
+    }
+
+    return count;
+}
+
+void _display_message_notification(NotificationScreen_t * const notificationScreen, const NotificationData_t *notification)
+{
+    //Create and display a graphical widget containing the notification
+    lv_obj_t *notification_display = lv_layer_top();
+
+    if(!notification_display)
+    {
+        LV_LOG_ERROR("Could not retrieve sys layer !");
+        return;
+    }
+
+    /*We can have two cases :
+    1) No notification is currently being displayed, so we create the needed UI objects
+    2) A notification is currently being shown and all UI elements were already created / allocated
+    */
+
+    if(lv_obj_get_child_cnt(notification_display) == 0)
+    {
+        //Only allow to scroll down and not up (LV_DIR_TOP makes it, is it a bug ?)
+        lv_obj_set_scroll_dir(notification_display, LV_DIR_TOP);
+        lv_obj_add_event_cb(notification_display, &(notification_scrolled_event_cb), LV_EVENT_SCROLL_END, notificationScreen);
+
+        lv_obj_t *main_notification = lv_obj_create(notification_display);
+        lv_obj_set_size(main_notification, 202, 166);
+        lv_obj_set_style_pad_all(main_notification, 0, LV_PART_MAIN);
+        lv_obj_set_style_pad_top(main_notification, 10, LV_PART_MAIN);
+        lv_obj_set_style_border_width(main_notification, 0, LV_PART_MAIN);
+        lv_obj_set_style_radius(main_notification, 30, LV_PART_MAIN);
+        lv_obj_align(main_notification, LV_ALIGN_BOTTOM_MID,0,166);
+        lv_obj_set_style_bg_color(main_notification, lv_color_make(52, 93, 106), LV_PART_MAIN);
+        //lv_obj_set_style_opa(main_notification, 240, LV_PART_MAIN); //Opacity is too heavy on ram :-(
+
+        //Create the title, type and date labels
+        if(notificationScreen->type_label)
+        {
+            LV_LOG_ERROR("type_label should be NULL here !");
+            lv_obj_del(notificationScreen->type_label);
+            notificationScreen->type_label = NULL;
+        }
+        notificationScreen->type_label = lv_label_create(main_notification);
+        lv_obj_set_style_text_color(notificationScreen->type_label, lv_color_white(), LV_PART_MAIN);
+        lv_obj_set_style_pad_left(notificationScreen->type_label, 10, LV_PART_MAIN);
+        lv_label_set_long_mode(notificationScreen->type_label, LV_LABEL_LONG_SCROLL_CIRCULAR);
+        lv_obj_set_style_anim_speed(notificationScreen->type_label, 10, LV_PART_MAIN);
+        lv_obj_set_width(notificationScreen->type_label, lv_pct(27));
+        lv_label_set_text(notificationScreen->type_label, _notification_type_to_char(notification->type));
+
+        if(notificationScreen->title_label)
+        {
+            LV_LOG_ERROR("title_label should be NULL here !");
+            lv_obj_del(notificationScreen->title_label);
+            notificationScreen->title_label = NULL;
+        }
+        notificationScreen->title_label = lv_label_create(main_notification);
+        lv_obj_set_style_text_color(notificationScreen->title_label, lv_color_white(), LV_PART_MAIN);
+        lv_obj_align(notificationScreen->title_label, LV_ALIGN_TOP_MID, 0, 0);
+        lv_obj_set_style_anim_speed(notificationScreen->title_label, 10, LV_PART_MAIN);
+        lv_label_set_long_mode(notificationScreen->title_label, LV_LABEL_LONG_SCROLL_CIRCULAR);
+        lv_obj_set_width(notificationScreen->title_label, lv_pct(40));
+        lv_label_set_text_static(notificationScreen->title_label, notification->title);
+
+        if(notificationScreen->date_label)
+        {
+            LV_LOG_ERROR("date_label should be NULL here !");
+            lv_obj_del(notificationScreen->date_label);
+            notificationScreen->date_label = NULL;
+        }
+        notificationScreen->date_label = lv_label_create(main_notification);
+        lv_obj_set_style_pad_right(notificationScreen->date_label, 10, LV_PART_MAIN);
+        lv_obj_set_style_text_color(notificationScreen->date_label, lv_color_white(), LV_PART_MAIN);
+        lv_obj_align(notificationScreen->date_label, LV_ALIGN_TOP_RIGHT, 0, 0);
+        lv_label_set_text(notificationScreen->date_label, _notification_timestamp_to_date(notification->dateOfArrival));
+
+        //Create the sub-area in the notification
+        lv_obj_t *sub_area = lv_obj_create(main_notification);
+        lv_obj_set_style_pad_all(sub_area, 10, LV_PART_MAIN);
+        lv_obj_set_style_border_width(sub_area, 0, LV_PART_MAIN);
+        lv_obj_set_style_radius(sub_area, 0, LV_PART_MAIN);
+        lv_obj_set_width(sub_area, 202);
+        lv_obj_set_height(sub_area, 136);
+        lv_obj_align(sub_area, LV_ALIGN_BOTTOM_MID, 0, 0);
+        lv_obj_set_style_bg_color(sub_area, lv_color_make(22, 52, 62), LV_PART_MAIN);
+        //Create the main text
+        if(notificationScreen->body_label)
+        {
+            LV_LOG_ERROR("body_label should be NULL here !");
+            lv_obj_del(notificationScreen->body_label);
+            notificationScreen->body_label = NULL;
+        }
+        notificationScreen->body_label = lv_label_create(sub_area);
+        lv_obj_set_width(notificationScreen->body_label, 182);
+        lv_obj_set_style_text_color(notificationScreen->body_label, lv_color_white(), LV_PART_MAIN);
+        lv_obj_set_style_pad_all(notificationScreen->body_label, 0, LV_PART_MAIN);
+        lv_obj_set_style_pad_bottom(notificationScreen->body_label, 40, LV_PART_MAIN);
+        lv_label_set_long_mode(notificationScreen->body_label, LV_LABEL_LONG_WRAP);
+        lv_label_set_text_static(notificationScreen->body_label, notification->body);
+
+
+        lv_obj_scroll_to_y(notification_display, 166, LV_ANIM_ON);
+    }
+    else
+    {
+        LV_LOG_USER("A notification is already being displayed, updating it's content !");
+        //We just have to update the notification content
+        lv_label_set_text_static(notificationScreen->type_label, _notification_type_to_char(notification->type));
+        lv_label_set_text_static(notificationScreen->title_label, notification->title);
+        lv_label_set_text_static(notificationScreen->date_label, _notification_timestamp_to_date(notification->dateOfArrival));
+        lv_label_set_text_static(notificationScreen->body_label, notification->body);
+    }
+}
+
+void _notification_popup_destroy(NotificationScreen_t * const notificationScreen)
+{
+    lv_obj_clean(lv_layer_top());
+    notificationScreen->type_label = NULL;
+    notificationScreen->title_label = NULL;
+    notificationScreen->date_label = NULL;
+    notificationScreen->body_label = NULL;
+}
+
+const char *_notification_type_to_char(NotificationType_e notificationType)
+{
+    switch(notificationType)
+    {
+    case NOTIFICATION_TYPE_SMS:
+        return "Sms";
+    case NOTIFICATION_TYPE_EMAIL:
+        return "Email";
+    case NOTIFICATION_TYPE_WHATSAPP:
+        return "WhatsApp";
+    case NOTIFICATION_TYPE_GADGET_BRIDGE:
+        return "GadgetBridge";
+    case NOTIFICATION_TYPE_UNKNOWN:
+    default:
+        return "Unknown";
+    }
+}
+
+const char *_notification_timestamp_to_date(time_t timestamp)
+{
+    static char date[9]; //Ex 7:23PM
+
+    struct tm *time = gmtime(&timestamp);
+    sprintf(date, "%s%d:%s%d", time->tm_hour > 10 ? "" : "0", time->tm_hour, time->tm_min > 10 ? "" : "0", time->tm_min);
+    return date;
+}
+
+void _notification_list_debug(NotificationDataList_t notificationList)
+{
+   while(!_notification_list_is_empty(notificationList))
+   {
+       LV_LOG_USER("Notification handle :%u", notificationList->handle);
+       notificationList = notificationList->next;
+   }
+}

src/W800_SDK_v1.00.10/app/gfx/notification_screen.h

@@ -0,0 +1,71 @@
+#ifndef NOTIFICATION_SCREEN_H
+#define NOTIFICATION_SCREEN_H
+
+#include "lvgl.h"
+#include <time.h>
+
+/* The maximum number of notifications which will be stored before the oldest one gets discarded
+to make room for the new one.
+*/
+#define MAX_NOTIFICATIONS_COUNT (10)
+
+typedef enum NotificationType
+{
+    NOTIFICATION_TYPE_SMS = 0,
+    NOTIFICATION_TYPE_EMAIL,
+    NOTIFICATION_TYPE_WHATSAPP,
+    NOTIFICATION_TYPE_GADGET_BRIDGE,
+    NOTIFICATION_TYPE_UNKNOWN,
+    /* This enum value has no match in GadgetBridge's enum */
+    NOTIFICATION_TYPE_CALL,
+} NotificationType_e;
+
+typedef enum NotificationState
+{
+    NOTIFICATION_STATE_CLEARED = 0,
+    NOTIFICATION_STATE_DISPLAYED = 1,
+} NotificationState_e;
+
+typedef struct NotificationData
+{
+    struct NotificationData *next;
+    uint32_t handle;
+    time_t dateOfArrival;
+    char *title;
+    char *body;
+    NotificationType_e type;
+    bool read; // Has the notification been read (aka closed by the user)
+
+} NotificationData_t, *NotificationDataList_t;
+
+typedef void (*NotificationOnStateChangeCb_t)(NotificationState_e notificationState);
+
+typedef struct NotificationScreen
+{
+    //Can be erased attributes
+    lv_obj_t *display;
+
+    //Should not be erased attributes
+    //Notification UI object
+    lv_obj_t *type_label;
+    lv_obj_t *title_label;
+    lv_obj_t *date_label;
+    lv_obj_t *body_label;
+    NotificationOnStateChangeCb_t notificationOnStateChangeCb;
+    //Notification history data structure
+    NotificationData_t notificationPool[MAX_NOTIFICATIONS_COUNT];
+    NotificationDataList_t notificationList; //Actual notifications
+    NotificationDataList_t freeNotificationList; //Free notification object pool
+} NotificationScreen_t;
+
+void notification_screen_init(NotificationScreen_t * const notificationScreen);
+
+void notification_screen_register_on_state_change_cb(NotificationScreen_t * const notificationScreen, NotificationOnStateChangeCb_t notificationOnStateChangeCb);
+
+void notification_screen_notify(NotificationScreen_t * const notificationScreen, uint32_t handle, time_t dateOfArrival, NotificationType_e notificationType, char * title, char * body);
+
+void notification_screen_create(NotificationScreen_t * const notificationScreen);
+
+void notification_screen_destroy(NotificationScreen_t * const notificationScreen);
+
+#endif // NOTIFICATION_SCREEN_H

src/W800_SDK_v1.00.10/app/gfx/settings_screen.c

@@ -20,7 +20,7 @@ static const char* vibration_force = "1\n2\n3\n4\n5\n6\n7\n8";
 
 static const char* language_options = "Francais\nDeutsch\nEnglish";
 
-static lv_obj_t *add_menu_list_item(lv_obj_t *list, const char *text, lv_event_cb_t event_cb, void *user_data);
+static lv_obj_t *add_menu_list_item(lv_obj_t *list, const char *text, lv_event_cb_t event_cb, void *user_data, SettingsScreenCategory_e category);
 static void update_menu_list_item_text(lv_obj_t *menu_list_item, const char *text);
 
 static void _simulate_side_screen_item_click(SettingsScreen_t * const settingsScreen, lv_obj_t *item);
@@ -261,6 +261,8 @@ static void factory_reset_cb(lv_event_t *e)
 static void about_refresh_timer_cb(lv_timer_t *timer)
 {
     SettingsScreen_t *settingsScreen = timer->user_data;
+
+    if(!settingsScreen->about_refresh_timer) return;
    
     static uint8_t timer_divider = 6;
     if(timer_divider++ == 6)
@@ -275,9 +277,6 @@ static void about_refresh_timer_cb(lv_timer_t *timer)
 
 static void load_time_and_date_side_screen(SettingsScreen_t *settingsScreen)
 {
-    lv_obj_clean(settingsScreen->side_screen);
-    _reset_switch_pointers(settingsScreen);
-
     uint8_t hour = 0, minute = 0, second = 0, day = 0, month = 0, year = 0;
     if(settingsScreen->settingsScreenAPIInterface.setTimeSettingsCb)
         settingsScreen->settingsScreenAPIInterface.setTimeSettingsCb(&hour, &minute, &second, &day, &month, &year, SETTING_MODE_GET);
@@ -393,9 +392,6 @@ static void load_time_and_date_side_screen(SettingsScreen_t *settingsScreen)
 
 static void load_display_side_screen(SettingsScreen_t *settingsScreen)
 {
-    lv_obj_clean(settingsScreen->side_screen);
-    _reset_switch_pointers(settingsScreen);
-
     lv_obj_t *label = lv_label_create(settingsScreen->side_screen);
     lv_label_set_text_static(label, "Brightness :");
 
@@ -483,9 +479,6 @@ static void load_display_side_screen(SettingsScreen_t *settingsScreen)
 
 static void load_notifications_side_screen(SettingsScreen_t *settingsScreen)
 {
-    lv_obj_clean(settingsScreen->side_screen);
-    _reset_switch_pointers(settingsScreen);
-
     lv_obj_t *label = lv_label_create(settingsScreen->side_screen);
     lv_label_set_text_static(label, "Vibrate on\nnotifications :");
 
@@ -512,9 +505,6 @@ static void load_notifications_side_screen(SettingsScreen_t *settingsScreen)
 
 static void load_connectivity_side_screen(SettingsScreen_t *settingsScreen)
 {
-    lv_obj_clean(settingsScreen->side_screen);
-    _reset_switch_pointers(settingsScreen);
-
     lv_obj_t *label = lv_label_create(settingsScreen->side_screen);
     lv_label_set_text_static(label, "Connectivity :");
 
@@ -588,9 +578,6 @@ static void load_connectivity_side_screen(SettingsScreen_t *settingsScreen)
 
 static void load_language_side_screen(SettingsScreen_t *settingsScreen)
 {
-    lv_obj_clean(settingsScreen->side_screen);
-    _reset_switch_pointers(settingsScreen);
-
     lv_obj_t *label = lv_label_create(settingsScreen->side_screen);
     lv_label_set_text_static(label, "Language :");
 
@@ -605,9 +592,6 @@ static void load_language_side_screen(SettingsScreen_t *settingsScreen)
 
 static void load_about_side_screen(SettingsScreen_t *settingsScreen)
 {
-    lv_obj_clean(settingsScreen->side_screen);
-    _reset_switch_pointers(settingsScreen);
-
     lv_obj_t *label = lv_label_create(settingsScreen->side_screen);
     lv_label_set_text_static(label, "System Info :");
 
@@ -723,6 +707,17 @@ void settings_screen_init(SettingsScreen_t * const settingsScreen)
     memset(settingsScreen, 0, sizeof(SettingsScreen_t));
 }
 
+void settings_screen_register_on_state_change_cb(SettingsScreen_t * const settingsScreen, SettingsScreenOnStateChangeCb_t settingsScreenOnStateChangeCb)
+{
+    if(!settingsScreen)
+    {
+        LV_LOG_ERROR("NULL pointer given !");
+        return;
+    }
+
+    settingsScreen->settingsScreenOnStateChangeCb = settingsScreenOnStateChangeCb;
+}
+
 void settings_screen_register_API_interface(SettingsScreen_t * const settingsScreen, SettingsScreenAPIInterface_t * const settingsScreenAPIInterface)
 {
     if(!settingsScreen)
@@ -745,7 +740,7 @@ void settings_screen_create(SettingsScreen_t * const settingsScreen)
         return;
     }
 
-    //We create our parent screen :
+    // We create our parent screen :
     if(settingsScreen->display)
     {
         LV_LOG_ERROR("display should be NULL here !");
@@ -754,10 +749,10 @@ void settings_screen_create(SettingsScreen_t * const settingsScreen)
     }
     settingsScreen->display = lv_obj_create(NULL);
 
-    //We add the screen header
+    // We add the screen header
     common_screen_header_component(settingsScreen->display, translation_get_word(TRANSLATION_SETTINGS), 50);
 
-    //We create the menu list on the left hand side
+    // We create the menu list on the left hand side
     lv_obj_t *menu_list = lv_list_create(settingsScreen->display);
     lv_obj_set_size(menu_list, 75,190);
     lv_obj_set_pos(menu_list, 0, 50);
@@ -767,7 +762,7 @@ void settings_screen_create(SettingsScreen_t * const settingsScreen)
     lv_obj_set_style_pad_left(menu_list, 0, LV_PART_MAIN);
     lv_obj_set_style_pad_bottom(menu_list, 50, LV_PART_MAIN);
 
-    //We add the side screen containing the settings
+    // We add the side screen containing the settings
     settingsScreen->side_screen = lv_obj_create(settingsScreen->display);
     lv_obj_set_size(settingsScreen->side_screen, 165,190);
     lv_obj_set_pos(settingsScreen->side_screen, 75, 50);
@@ -777,20 +772,20 @@ void settings_screen_create(SettingsScreen_t * const settingsScreen)
     lv_obj_set_style_pad_bottom(settingsScreen->side_screen, 70, LV_PART_MAIN);
     lv_obj_set_scroll_dir(settingsScreen->side_screen, LV_DIR_VER);
 
-    //We add all the menu list items
-    settingsScreen->time_and_date_item = add_menu_list_item(menu_list, translation_get_word(TRANSLATION_TIME_AND_DATE), &(menu_list_item_event_handler), settingsScreen);
-    settingsScreen->display_item = add_menu_list_item(menu_list, translation_get_word(TRANSLATION_DISPLAY), &(menu_list_item_event_handler), settingsScreen);
-    settingsScreen->notifications_item = add_menu_list_item(menu_list, translation_get_word(TRANSLATION_NOTIFICATIONS), &(menu_list_item_event_handler), settingsScreen);
-    settingsScreen->connectivity_item = add_menu_list_item(menu_list, translation_get_word(TRANSLATION_CONNECTIVITY), &(menu_list_item_event_handler), settingsScreen);
-    settingsScreen->language_item = add_menu_list_item(menu_list, translation_get_word(TRANSLATION_LANGUAGE), &(menu_list_item_event_handler), settingsScreen);
-    settingsScreen->about_item = add_menu_list_item(menu_list, translation_get_word(TRANSLATION_ABOUT), &(menu_list_item_event_handler), settingsScreen);
+    // We add all the menu list items
+    settingsScreen->time_and_date_item = add_menu_list_item(menu_list, translation_get_word(TRANSLATION_TIME_AND_DATE), &(menu_list_item_event_handler), settingsScreen, SETTINGS_SCREEN_CATEGORY_TIME_AND_DATE);
+    settingsScreen->display_item = add_menu_list_item(menu_list, translation_get_word(TRANSLATION_DISPLAY), &(menu_list_item_event_handler), settingsScreen, SETTINGS_SCREEN_CATEGORY_DISPLAY);
+    settingsScreen->notifications_item = add_menu_list_item(menu_list, translation_get_word(TRANSLATION_NOTIFICATIONS), &(menu_list_item_event_handler), settingsScreen, SETTINGS_SCREEN_CATEGORY_NOTIFICATION);
+    settingsScreen->connectivity_item = add_menu_list_item(menu_list, translation_get_word(TRANSLATION_CONNECTIVITY), &(menu_list_item_event_handler), settingsScreen, SETTINGS_SCREEN_CATEGORY_CONNECTIVITY);
+    settingsScreen->language_item = add_menu_list_item(menu_list, translation_get_word(TRANSLATION_LANGUAGE), &(menu_list_item_event_handler), settingsScreen, SETTINGS_SCREEN_CATEGORY_LANGUAGE);
+    settingsScreen->about_item = add_menu_list_item(menu_list, translation_get_word(TRANSLATION_ABOUT), &(menu_list_item_event_handler), settingsScreen, SETTINGS_SCREEN_CATEGORY_ABOUT);
 
-    //We register the event callback to handle gesture
+    // We register the event callback to handle gesture
     lv_obj_add_event_cb(settingsScreen->display, &(gesture_event_cb), LV_EVENT_GESTURE, settingsScreen);
-    //We register the event callback to handle the cleanup
+    // We register the event callback to handle the cleanup
     lv_obj_add_event_cb(settingsScreen->display, &(cleanup_event_cb), LV_EVENT_DELETE, settingsScreen);
 
-    //We load the default side screen content (time and date)
+    // We load the default side screen content (time and date)
     _simulate_side_screen_item_click(settingsScreen, settingsScreen->time_and_date_item);
 }
 
@@ -802,6 +797,12 @@ void settings_screen_destroy(SettingsScreen_t * const settingsScreen)
         return;
     }
 
+    if (settingsScreen->last_selected_item)
+    {
+        if (settingsScreen->settingsScreenOnStateChangeCb)
+            settingsScreen->settingsScreenOnStateChangeCb(SETTINGS_SCREEN_STATE_CLOSED, (SettingsScreenCategory_e)lv_obj_get_user_data(settingsScreen->last_selected_item));
+    }
+
     settingsScreen->hour_roller         = NULL;
     settingsScreen->minute_roller       = NULL;
     settingsScreen->second_roller       = NULL;
@@ -823,13 +824,26 @@ static void _simulate_side_screen_item_click(SettingsScreen_t * const settingsSc
         settingsScreen->about_refresh_timer = NULL;
     }
 
-    //Updating the background of the selected category
+    // Updating the background of the selected category
     lv_obj_set_style_bg_color(item, lv_color_make(178, 223, 219), LV_PART_MAIN);
     if(settingsScreen->last_selected_item)
         lv_obj_set_style_bg_color(settingsScreen->last_selected_item, lv_color_white(), LV_PART_MAIN);
 
+    // Let's call the settings screen on state change callback if registered
+    if(settingsScreen->settingsScreenOnStateChangeCb)
+        settingsScreen->settingsScreenOnStateChangeCb(SETTINGS_SCREEN_STATE_OPENED, (SettingsScreenCategory_e)lv_obj_get_user_data(item));
+
+    if(settingsScreen->last_selected_item)
+    {
+        if(settingsScreen->settingsScreenOnStateChangeCb)
+            settingsScreen->settingsScreenOnStateChangeCb(SETTINGS_SCREEN_STATE_CLOSED, (SettingsScreenCategory_e)lv_obj_get_user_data(settingsScreen->last_selected_item));
+    }
+
     settingsScreen->last_selected_item = item;
 
+    lv_obj_clean(settingsScreen->side_screen);
+    _reset_switch_pointers(settingsScreen);
+
     if(item == settingsScreen->time_and_date_item)
     {
         load_time_and_date_side_screen(settingsScreen);
@@ -861,7 +875,10 @@ static void _set_rtc_time_to_label(SettingsScreen_t * const settingsScreen)
     uint8_t hour = 0, minute = 0, second = 0, day = 0, month = 0, year = 0;
     if(settingsScreen->settingsScreenAPIInterface.setTimeSettingsCb)
         settingsScreen->settingsScreenAPIInterface.setTimeSettingsCb(&hour, &minute, &second, &day, &month, &year, SETTING_MODE_GET);
-    sprintf(settingsScreen->currentTime.current_time_text, "%u:%u:%u %s%u/%s%u/%u", hour, minute, second, 
+    sprintf(settingsScreen->currentTime.current_time_text, "%s%u:%s%u:%s%u %s%u/%s%u/%u", 
+    hour < 10 ? "0":"", hour,
+    minute < 10 ? "0":"", minute,
+    second < 10 ? "0":"", second,
     day < 10 ? "0":"", day,
     month + 1 < 10 ? "0":"", month + 1,
     year+1900);
@@ -951,7 +968,7 @@ static void _enable_time_and_date_rollers(bool enabled, SettingsScreen_t * const
     }
 }
 
-static lv_obj_t *add_menu_list_item(lv_obj_t *list, const char *text, lv_event_cb_t event_cb, void *user_data)
+static lv_obj_t *add_menu_list_item(lv_obj_t *list, const char *text, lv_event_cb_t event_cb, void *user_data, SettingsScreenCategory_e category)
 {
     lv_obj_t *btn = lv_list_add_btn(list, NULL, text);
     lv_obj_t *label = lv_obj_get_child(btn, 0);
@@ -962,6 +979,7 @@ static lv_obj_t *add_menu_list_item(lv_obj_t *list, const char *text, lv_event_c
         lv_label_set_long_mode(label, LV_LABEL_LONG_WRAP);
     }
 
+    lv_obj_set_user_data(btn, (void *)category);
     lv_obj_add_event_cb(btn, event_cb, LV_EVENT_CLICKED, user_data);
     return btn;
 }

src/W800_SDK_v1.00.10/app/gfx/settings_screen.h

@@ -33,6 +33,24 @@ typedef struct SettingsScreenAPIInterface
     void (*factoryResetCb)(void);
 } SettingsScreenAPIInterface_t;
 
+typedef enum SettingsScreenState
+{
+    SETTINGS_SCREEN_STATE_OPENED = 0,
+    SETTINGS_SCREEN_STATE_CLOSED
+} SettingsScreenState_e;
+
+typedef enum SettingsScreenCategory
+{
+    SETTINGS_SCREEN_CATEGORY_TIME_AND_DATE = 0,
+    SETTINGS_SCREEN_CATEGORY_DISPLAY,
+    SETTINGS_SCREEN_CATEGORY_NOTIFICATION,
+    SETTINGS_SCREEN_CATEGORY_CONNECTIVITY,
+    SETTINGS_SCREEN_CATEGORY_LANGUAGE,
+    SETTINGS_SCREEN_CATEGORY_ABOUT,
+} SettingsScreenCategory_e;
+
+typedef void (*SettingsScreenOnStateChangeCb_t)(SettingsScreenState_e settingsScreenState, SettingsScreenCategory_e settingsScreenCategory);
+
 typedef struct SettingsScreen
 {
     SettingsScreenAPIInterface_t settingsScreenAPIInterface;
@@ -108,10 +126,21 @@ typedef struct SettingsScreen
 
     /* Other */
     lv_timer_t *about_refresh_timer;
+    SettingsScreenOnStateChangeCb_t settingsScreenOnStateChangeCb;
 } SettingsScreen_t;
 
 void settings_screen_init(SettingsScreen_t * const settingsScreen);
 
+/**
+ * @brief Registers a callback function which will be called every time the state of the application changes ie : is opened or closed.
+ *        This callback should be used to initialize and deinitialize needed devices drivers like the magnetometer or the temperature sensor.
+ * @note The state of the application is passed as a parameter or the callback function. 
+ * 
+ * @param settingsScreen a pointer to the settings screen object structure.
+ * @param SettingsScreenOnStateChangeCb the callback of type @ref SettingsScreenOnStateChangeCb_t to register.
+ */
+void settings_screen_register_on_state_change_cb(SettingsScreen_t * const settingsScreen, SettingsScreenOnStateChangeCb_t SettingsScreenOnStateChangeCb);
+
 void settings_screen_register_API_interface(SettingsScreen_t * const settingsScreen, SettingsScreenAPIInterface_t * const settingsScreenAPIInterface);
 
 void settings_screen_create(SettingsScreen_t * const settingsScreen);

src/W800_SDK_v1.00.10/app/gfx/watch_face.c

@@ -303,11 +303,7 @@ void watch_face_create(WatchFace_t * const watchFace)
         lv_obj_del(watchFace->batteryIndicator.batteryIcon);
         watchFace->batteryIndicator.batteryIcon = NULL;
     }
-
     watchFace->batteryIndicator.batteryIcon = lv_img_create(watchFace->display);
-    set_battery_state_icon(watchFace);
-    lv_img_set_zoom(watchFace->batteryIndicator.batteryIcon, 141);
-    lv_obj_align_to(watchFace->batteryIndicator.batteryIcon, watchFace->batteryIndicator.label, LV_ALIGN_OUT_BOTTOM_MID, 0, -9);
 
     if(watchFace->batteryIndicator.lowBatteryAnimationTimer)
     {
@@ -318,6 +314,12 @@ void watch_face_create(WatchFace_t * const watchFace)
     watchFace->batteryIndicator.lowBatteryAnimationTimer = lv_timer_create(&(battery_timer_anim_cb), 500, watchFace);
     lv_timer_pause(watchFace->batteryIndicator.lowBatteryAnimationTimer);
 
+    // set_battery_state_icon internally needs to interact with the lowBatteryAnimationTimer,
+    // this is why we call the function after the timer has been created
+    set_battery_state_icon(watchFace);
+    lv_img_set_zoom(watchFace->batteryIndicator.batteryIcon, 141);
+    lv_obj_align_to(watchFace->batteryIndicator.batteryIcon, watchFace->batteryIndicator.label, LV_ALIGN_OUT_BOTTOM_MID, 0, -9);
+
     // Bluetooth status icon is created here
     if(watchFace->bluetoothIndicator.bluetoothIcon)
     {

src/W800_SDK_v1.00.10/lvgl/lvgl_port/lv_conf.h

@@ -49,7 +49,7 @@
 #define LV_MEM_CUSTOM 0
 #if LV_MEM_CUSTOM == 0
     /*Size of the memory available for `lv_mem_alloc()` in bytes (>= 2kB)*/
-    #define LV_MEM_SIZE (30 * 1024U)          /*[bytes]*/
+    #define LV_MEM_SIZE (35 * 1024U)          /*[bytes]*/
 
     /*Set an address for the memory pool instead of allocating it as a normal array. Can be in external SRAM too.*/
     #define LV_MEM_ADR 0     /*0: unused*/

src/gadget_bridge_parser/gadget_bridge.c

@@ -6,6 +6,7 @@
  * @version 0.1
  * @date 2023-04-05
  * Updated : 2023-10-15, fixed potential memory leak.
+ * Updated : 2023-10-17, fixed potential issue where a double quote is added at the start of a parsed string.
  *
  * @copyright MIT
  *
@@ -252,7 +253,7 @@ gadget_bridge_parser_code_e gadget_bridge_parser_run(void)
     {
         case GADGET_BRIDGE_PARSER_FSM_NEW_MESSAGE:
 
-            // To prevent a potential memory leak if the parser is fed with bad data
+            // To prevent a potential memory leak if the parser is fed with ill formed data
             _free_event_data();
 
             if((start = strstr(_gadget_bridge_internals.buffer, "setTime("))
@@ -428,7 +429,7 @@ gadget_bridge_parser_code_e gadget_bridge_parser_run(void)
             else to_return = GADGET_BRIDGE_PARSER_CODE_OK;
             break;
         case GADGET_BRIDGE_PARSER_FSM_FOUND_ID_SRC:
-            if((start = strstr(_gadget_bridge_internals.buffer, "src:")) &&
+            if((start = strstr(_gadget_bridge_internals.buffer, "src:\"")) &&
             ((end = strstr(_gadget_bridge_internals.buffer, ",title")) || (end2 = strstr(_gadget_bridge_internals.buffer, ",subject"))))
             {
                 if((end && !end2) || (end != NULL && end < end2))
@@ -458,7 +459,7 @@ gadget_bridge_parser_code_e gadget_bridge_parser_run(void)
             else to_return = GADGET_BRIDGE_PARSER_CODE_OK;
             break;
         case GADGET_BRIDGE_PARSER_FSM_FOUND_TITLE:
-            if((start = strstr(_gadget_bridge_internals.buffer, "title:")))
+            if((start = strstr(_gadget_bridge_internals.buffer, "title:\"")))
             {
                 printf("###Parsing TITLE content\n");
 
@@ -512,7 +513,7 @@ gadget_bridge_parser_code_e gadget_bridge_parser_run(void)
         }
             break;
         case GADGET_BRIDGE_PARSER_FSM_FOUND_SRC_BODY:
-            if((start = strstr(_gadget_bridge_internals.buffer, "body:")))
+            if((start = strstr(_gadget_bridge_internals.buffer, "body:\"")))
             {
                 printf("###Parsing BODY content\n");
 
@@ -704,7 +705,7 @@ gadget_bridge_parser_code_e gadget_bridge_parser_run(void)
             _gadget_bridge_internals.gadget_bridge_parser_fsm = GADGET_BRIDGE_PARSER_FSM_NEW_MESSAGE;
             break;*/
         case GADGET_BRIDGE_PARSER_FSM_FOUND_SUBJECT:
-            if((start = strstr(_gadget_bridge_internals.buffer, "subject:")))
+            if((start = strstr(_gadget_bridge_internals.buffer, "subject:\"")))
             {
                 printf("###Parsing SUBJECT content\n");
 

src/gadget_bridge_parser/gadget_bridge.h

@@ -202,7 +202,7 @@ typedef struct gadget_bridge_event_data
     };
 } gadget_bridge_event_data_t;
 
-typedef void (*parser_event_callback_t)(const gadget_bridge_event_data_t *gadget_bridge_event_data);
+typedef void (*parser_event_callback_t)(gadget_bridge_event_data_t *gadget_bridge_event_data);
 
 /**
  * @brief Sends an Android toast to GadgetBridge to be displayed on the phone.

src/gadget_bridge_parser/gadget_bridge_parser.depend

@@ -50,18 +50,19 @@
 	<stdlib.h>
 	<string.h>
 
-1696357704 source:d:\users\think\documents\w800_smart_watch\src\gadget_bridge_parser\gadget_bridge.c
+1697540423 source:d:\users\think\documents\w800_smart_watch\src\gadget_bridge_parser\gadget_bridge.c
 	"gadget_bridge.h"
 	<stdio.h>
 	<stdlib.h>
 	<string.h>
+	<assert.h>
 
-1695293778 d:\users\think\documents\w800_smart_watch\src\gadget_bridge_parser\gadget_bridge.h
+1696487243 d:\users\think\documents\w800_smart_watch\src\gadget_bridge_parser\gadget_bridge.h
 	<stdint.h>
 	<stdbool.h>
 	<time.h>
 
-1695293778 source:d:\users\think\documents\w800_smart_watch\src\gadget_bridge_parser\main.c
+1697572727 source:d:\users\think\documents\w800_smart_watch\src\gadget_bridge_parser\main.c
 	<stdio.h>
 	<stdlib.h>
 	<string.h>

src/gadget_bridge_parser/gadget_bridge_parser.layout

@@ -7,14 +7,14 @@
 			<Cursor1 position="4496" topLine="288" />
 		</Cursor>
 	</File>
-	<File name="gadget_bridge.c" open="1" top="1" tabpos="1" split="0" active="1" splitpos="0" zoom_1="0" zoom_2="0">
+	<File name="gadget_bridge.c" open="1" top="0" tabpos="1" split="0" active="1" splitpos="0" zoom_1="0" zoom_2="0">
 		<Cursor>
-			<Cursor1 position="71209" topLine="1490" />
+			<Cursor1 position="35064" topLine="963" />
 		</Cursor>
 	</File>
 	<File name="main.c" open="1" top="0" tabpos="3" split="0" active="1" splitpos="0" zoom_1="0" zoom_2="0">
 		<Cursor>
-			<Cursor1 position="11686" topLine="156" />
+			<Cursor1 position="11548" topLine="333" />
 		</Cursor>
 	</File>
 </CodeBlocks_layout_file>

src/gadget_bridge_parser/main.c

@@ -39,7 +39,7 @@ GB({t:"act",hrm:false,stp:true,int:10})[10]
 [16]GB({t:"act",hrm:false,stp:false,int:10})[10]
 **/
 
-void parser_event(const gadget_bridge_event_data_t *gadget_bridge_event_data)
+void parser_event(gadget_bridge_event_data_t *gadget_bridge_event_data)
 {
     printf("----------->Event of type : %s\n", gadget_bridge_event_type_2_str(gadget_bridge_event_data->event_type));
 
@@ -351,6 +351,11 @@ const char *sample[] =
 "ux pour la backyard ",
 "!\nEncore bravo :cla",
 "p::+1:\"})[10]",
+
+"[16]GB({t:\"notify\",id",
+":1697570919,src:\"Gadget",
+"bridge\",subject:\"12345678912345678912345678912345678\",body:\"12345678912345678912345678912345678\",sender:\"12345678912345678912345678912345678\",tel:\"12345678912345678912345678912345678\"})[10]"
+
 };
 
 int main()

src/lvgl_win_sim/lv_port_win_codeblocks/LittlevGL.layout

@@ -2,373 +2,204 @@
 <CodeBlocks_layout_file>
 	<FileVersion major="1" minor="0" />
 	<ActiveTarget name="Debug" />
-	<File name="lvgl\lv_conf_template.h" open="0" top="0" tabpos="0" split="0" active="1" splitpos="0" zoom_1="0" zoom_2="0">
-		<Cursor>
-			<Cursor1 position="0" topLine="56" />
-		</Cursor>
-	</File>
-	<File name="lvgl\src\misc\lv_timer.h" open="0" top="0" tabpos="10" split="0" active="1" splitpos="0" zoom_1="0" zoom_2="0">
-		<Cursor>
-			<Cursor1 position="635" topLine="36" />
-		</Cursor>
-	</File>
-	<File name="lvgl\src\draw\lv_draw_img.c" open="0" top="0" tabpos="0" split="0" active="1" splitpos="0" zoom_1="0" zoom_2="0">
-		<Cursor>
-			<Cursor1 position="5230" topLine="191" />
-		</Cursor>
-	</File>
-	<File name="lvgl\src\core\lv_disp.c" open="0" top="0" tabpos="0" split="0" active="1" splitpos="0" zoom_1="0" zoom_2="0">
-		<Cursor>
-			<Cursor1 position="7126" topLine="230" />
-		</Cursor>
-	</File>
-	<File name="lvgl\src\layouts\flex\lv_flex.c" open="0" top="0" tabpos="8" split="0" active="1" splitpos="0" zoom_1="0" zoom_2="0">
-		<Cursor>
-			<Cursor1 position="3097" topLine="74" />
-		</Cursor>
-	</File>
-	<File name="compass_assets.c" open="0" top="0" tabpos="13" split="0" active="1" splitpos="0" zoom_1="0" zoom_2="0">
-		<Cursor>
-			<Cursor1 position="0" topLine="143" />
-		</Cursor>
-	</File>
-	<File name="music_player_screen.h" open="1" top="0" tabpos="6" split="0" active="1" splitpos="0" zoom_1="0" zoom_2="0">
-		<Cursor>
-			<Cursor1 position="1263" topLine="24" />
-		</Cursor>
-	</File>
-	<File name="lvgl\examples\widgets\bar\lv_example_bar_6.c" open="0" top="0" tabpos="0" split="0" active="1" splitpos="0" zoom_1="0" zoom_2="0">
-		<Cursor>
-			<Cursor1 position="181" topLine="0" />
-		</Cursor>
-	</File>
-	<File name="lv_drv_conf.h" open="0" top="0" tabpos="3" split="0" active="1" splitpos="0" zoom_1="0" zoom_2="0">
-		<Cursor>
-			<Cursor1 position="6602" topLine="208" />
-		</Cursor>
-	</File>
-	<File name="lvgl\src\core\lv_indev_scroll.c" open="0" top="0" tabpos="0" split="0" active="1" splitpos="0" zoom_1="0" zoom_2="0">
-		<Cursor>
-			<Cursor1 position="14405" topLine="323" />
-		</Cursor>
-	</File>
-	<File name="firmware_version.h" open="0" top="0" tabpos="9" split="0" active="1" splitpos="0" zoom_1="0" zoom_2="0">
-		<Cursor>
-			<Cursor1 position="160" topLine="0" />
-		</Cursor>
-	</File>
-	<File name="lvgl\src\misc\lv_area.h" open="0" top="0" tabpos="15" split="0" active="1" splitpos="0" zoom_1="0" zoom_2="0">
-		<Cursor>
-			<Cursor1 position="1789" topLine="74" />
-		</Cursor>
-	</File>
-	<File name="lvgl\src\core\lv_obj_class.h" open="0" top="0" tabpos="0" split="0" active="1" splitpos="0" zoom_1="0" zoom_2="0">
-		<Cursor>
-			<Cursor1 position="1857" topLine="35" />
-		</Cursor>
-	</File>
-	<File name="lvgl\src\widgets\chart\lv_chart.h" open="0" top="0" tabpos="0" split="0" active="1" splitpos="0" zoom_1="0" zoom_2="0">
-		<Cursor>
-			<Cursor1 position="11658" topLine="336" />
-		</Cursor>
-	</File>
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 		<Cursor>
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@@ -391,124 +222,39 @@
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 		<Cursor>
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 		<Cursor>
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 		<Cursor>
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+		</Cursor>
+	</File>
+	<File name="lvgl\src\core\lv_obj_tree.c" open="0" top="0" tabpos="0" split="0" active="1" splitpos="0" zoom_1="0" zoom_2="0">
+		<Cursor>
+			<Cursor1 position="2082" topLine="62" />
+		</Cursor>
+	</File>
+	<File name="lvgl\src\core\lv_refr.h" open="0" top="0" tabpos="0" split="0" active="1" splitpos="0" zoom_1="0" zoom_2="0">
+		<Cursor>
+			<Cursor1 position="2447" topLine="75" />
+		</Cursor>
+	</File>
+	<File name="lvgl\src\font\lv_font_montserrat_30.c" open="0" top="0" tabpos="0" split="0" active="1" splitpos="0" zoom_1="0" zoom_2="0">
+		<Cursor>
+			<Cursor1 position="869" topLine="0" />
+		</Cursor>
+	</File>
+	<File name="lv_drivers\indev\keyboard.h" open="0" top="0" tabpos="0" split="0" active="1" splitpos="0" zoom_1="0" zoom_2="0">
+		<Cursor>
+			<Cursor1 position="440" topLine="14" />
+		</Cursor>
+	</File>
+	<File name="lvgl\src\core\lv_obj_style.c" open="0" top="0" tabpos="0" split="0" active="1" splitpos="0" zoom_1="0" zoom_2="0">
+		<Cursor>
+			<Cursor1 position="7273" topLine="217" />
+		</Cursor>
+	</File>
+	<File name="settings_screen.h" open="1" top="0" tabpos="2" split="0" active="1" splitpos="0" zoom_1="0" zoom_2="0">
+		<Cursor>
+			<Cursor1 position="1893" topLine="6" />
+		</Cursor>
+	</File>
+	<File name="lvgl\src\misc\lv_timer.c" open="0" top="0" tabpos="0" split="0" active="1" splitpos="0" zoom_1="0" zoom_2="0">
+		<Cursor>
+			<Cursor1 position="5053" topLine="144" />
+		</Cursor>
+	</File>
+	<File name="lvgl\src\widgets\label\lv_label.c" open="0" top="0" tabpos="0" split="0" active="1" splitpos="0" zoom_1="0" zoom_2="0">
+		<Cursor>
+			<Cursor1 position="5010" topLine="164" />
+		</Cursor>
+	</File>
+	<File name="lvgl\src\core\lv_disp.h" open="0" top="0" tabpos="0" split="0" active="1" splitpos="0" zoom_1="0" zoom_2="0">
+		<Cursor>
+			<Cursor1 position="6135" topLine="182" />
+		</Cursor>
+	</File>
+	<File name="notification_screen.c" open="1" top="1" tabpos="5" split="0" active="1" splitpos="0" zoom_1="0" zoom_2="0">
+		<Cursor>
+			<Cursor1 position="1528" topLine="15" />
+		</Cursor>
+	</File>
+	<File name="lvgl\src\font\lv_font_montserrat_12.c" open="0" top="0" tabpos="0" split="0" active="1" splitpos="0" zoom_1="0" zoom_2="0">
+		<Cursor>
+			<Cursor1 position="0" topLine="22" />
+		</Cursor>
+	</File>
+	<File name="lvgl\src\misc\lv_color.h" open="0" top="0" tabpos="5" split="0" active="1" splitpos="0" zoom_1="0" zoom_2="0">
+		<Cursor>
+			<Cursor1 position="1102" topLine="35" />
+		</Cursor>
+	</File>
+	<File name="lvgl\src\core\lv_indev_scroll.c" open="0" top="0" tabpos="0" split="0" active="1" splitpos="0" zoom_1="0" zoom_2="0">
+		<Cursor>
+			<Cursor1 position="14405" topLine="323" />
+		</Cursor>
+	</File>
+	<File name="altimeter_screen.c" open="0" top="0" tabpos="6" split="0" active="1" splitpos="0" zoom_1="0" zoom_2="0">
+		<Cursor>
+			<Cursor1 position="9615" topLine="246" />
+		</Cursor>
+	</File>
+	<File name="lvgl\src\core\lv_obj.h" open="0" top="0" tabpos="10" split="0" active="1" splitpos="0" zoom_1="0" zoom_2="0">
+		<Cursor>
+			<Cursor1 position="10255" topLine="265" />
+		</Cursor>
+	</File>
+	<File name="lvgl\demos\widgets\assets\img_demo_widgets_avatar.c" open="0" top="0" tabpos="0" split="0" active="1" splitpos="0" zoom_1="0" zoom_2="0">
+		<Cursor>
+			<Cursor1 position="1282774" topLine="472" />
+		</Cursor>
+	</File>
 </CodeBlocks_layout_file>

src/lvgl_win_sim/lv_port_win_codeblocks/compass_screen.c

@@ -28,6 +28,8 @@ static void gesture_event_cb(lv_event_t * e)
         break;
     case LV_DIR_RIGHT:
         LV_LOG_USER("GESTURE : RIGHT");
+        // We delete the refresh timer
+        lv_timer_del(compassScreen->refreshTimer);
         // We create the menu screen and switch to it
         extern MenuScreen_t menuScreen;
         menu_screen_create(&menuScreen);
@@ -44,8 +46,6 @@ static void gesture_event_cb(lv_event_t * e)
     }
 }
 
-static lv_timer_t *timer;
-
 static void cleanup_event_cb(lv_event_t * e)
 {
     CompassScreen_t *compassScreen = e->user_data;
@@ -53,18 +53,20 @@ static void cleanup_event_cb(lv_event_t * e)
     LV_LOG_USER("cleanup");
 }
 
-//To delete
-static void timer_anim_cb(lv_timer_t *timer)
+static void _compass_screen_refresh_timer_cb(lv_timer_t *timer)
 {
     CompassScreen_t *compassScreen = timer->user_data;
-    static uint16_t azimuth = 0;
-    static float temp = -20;
-    compass_screen_set_azimuth(compassScreen, azimuth++);
-    compass_screen_set_temperature(compassScreen, temp+=0.09);
 
-    if(temp > 120) temp = -20;
+    if(compassScreen->compassScreenAzimuthAndTemperatureCb)
+    {
+        uint16_t azimuth = 0;
+        float temperature = 0.0f;
 
-    //lv_meter_set_scale_range(compassScreen->compassGraduation.meter, compassScreen->compassGraduation.scale, 0, 330, 330, -azimuth-90);
+        compassScreen->compassScreenAzimuthAndTemperatureCb(&azimuth, &temperature);
+
+        compass_screen_set_azimuth(compassScreen, azimuth);
+        compass_screen_set_temperature(compassScreen, temperature);
+    }
 }
 
 static void create_cardinal(CompassCardinal_t *cardidanl, const char *cardinalText, lv_color_t textColor, lv_coord_t x, lv_coord_t y, lv_obj_t *parent)
@@ -106,6 +108,28 @@ void compass_screen_init(CompassScreen_t * const compassScreen)
     strcpy(compassScreen->compassTemperature.text, "0.00°C");
 }
 
+void compass_screen_register_on_state_change_cb(CompassScreen_t * const compassScreen, CompassScreenOnStateChangeCb_t compassScreenOnStateChangeCb)
+{
+    if(!compassScreen)
+    {
+        LV_LOG_ERROR("NULL pointer given !");
+        return;
+    }
+
+    compassScreen->compassScreenOnStateChangeCb = compassScreenOnStateChangeCb;
+}
+
+void compass_screen_register_azimuth_and_temperature_cb(CompassScreen_t * const compassScreen, CompassScreenAzimuthAndTemperatureCb_t compassScreenAzimuthAndTemperatureCb)
+{
+    if(!compassScreen)
+    {
+        LV_LOG_ERROR("NULL pointer given !");
+        return;
+    }
+
+    compassScreen->compassScreenAzimuthAndTemperatureCb = compassScreenAzimuthAndTemperatureCb;
+}
+
 void compass_screen_set_azimuth(CompassScreen_t * const compassScreen, uint16_t azimuth)
 {
     if(!compassScreen)
@@ -165,7 +189,17 @@ void compass_screen_set_temperature(CompassScreen_t * const compassScreen, float
     //Update the temperature label
     sprintf(compassScreen->compassTemperature.text, "%.2f°C", temperature);
     lv_label_set_text_static(compassScreen->compassTemperature.label, compassScreen->compassTemperature.text);
+}
 
+bool compass_screen_is_in_use(CompassScreen_t *const compassScreen)
+{
+    if(!compassScreen)
+    {
+        LV_LOG_ERROR("NULL pointer given !");
+        return false;
+    }
+
+    return compassScreen->display != NULL;
 }
 
 void compass_screen_create(CompassScreen_t * const compassScreen)
@@ -191,7 +225,7 @@ void compass_screen_create(CompassScreen_t * const compassScreen)
     compassScreen->display = lv_obj_create(NULL);
     lv_obj_set_style_bg_color(compassScreen->display, lv_color_white(), LV_PART_MAIN);
 
-    //Let's try to add some arcs
+    //Let's add some arcs
     lv_obj_t *arc = lv_arc_create(compassScreen->display);
     lv_arc_set_angles(arc, 0, 360);
     lv_obj_set_style_arc_width(arc, 2, LV_PART_INDICATOR);
@@ -308,8 +342,17 @@ void compass_screen_create(CompassScreen_t * const compassScreen)
     //We register the event callback to handle the cleanup
     lv_obj_add_event_cb(compassScreen->display, &(cleanup_event_cb), LV_EVENT_DELETE, compassScreen);
 
-    //To delete
-    timer = lv_timer_create(&(timer_anim_cb), 2, compassScreen);
+    //We create the refresh timer
+    if(compassScreen->refreshTimer)
+    {
+        LV_LOG_ERROR("refreshTimer should be NULL here !");
+        lv_timer_del(compassScreen->refreshTimer);
+        compassScreen->refreshTimer = NULL;
+    }
+
+    if(compassScreen->compassScreenOnStateChangeCb) compassScreen->compassScreenOnStateChangeCb(COMPASS_SCREEN_OPENED);
+
+    compassScreen->refreshTimer = lv_timer_create(&(_compass_screen_refresh_timer_cb), 20, compassScreen);
 }
 
 void compass_screen_destroy(CompassScreen_t * const compassScreen)
@@ -330,6 +373,7 @@ void compass_screen_destroy(CompassScreen_t * const compassScreen)
     compassScreen->northMarker              = NULL;
     compassScreen->compassGraduation.meter  = NULL;
     compassScreen->compassGraduation.scale  = NULL;
+    compassScreen->refreshTimer             = NULL;
 
-    lv_timer_del(timer);
+    if(compassScreen->compassScreenOnStateChangeCb) compassScreen->compassScreenOnStateChangeCb(COMPASS_SCREEN_CLOSED);
 }

src/lvgl_win_sim/lv_port_win_codeblocks/compass_screen.h

@@ -22,6 +22,16 @@ typedef struct CompassGraduation
     lv_meter_scale_t *scale;
 } CompassGraduation_t;
 
+typedef enum CompassScreenState
+{
+    COMPASS_SCREEN_OPENED = 0,
+    COMPASS_SCREEN_CLOSED
+} CompassScreenState_e;
+
+typedef void (*CompassScreenOnStateChangeCb_t)(CompassScreenState_e compassScreenState);
+
+typedef void (*CompassScreenAzimuthAndTemperatureCb_t)(uint16_t *azimuth, float *temperature);
+
 /* Compass screen context object */
 typedef struct CompassScreen
 {
@@ -37,21 +47,77 @@ typedef struct CompassScreen
 
     CompassLabel_t compassAzimuth;
     CompassLabel_t compassTemperature;
+
+    CompassScreenOnStateChangeCb_t compassScreenOnStateChangeCb;
+    CompassScreenAzimuthAndTemperatureCb_t compassScreenAzimuthAndTemperatureCb;
+
+    lv_timer_t *refreshTimer;
 } CompassScreen_t;
 
-/* Initializes the compass screen context object */
+/**
+ * @brief Initializes the compass screen object structure.
+ * @note This function has to be called first before any others.
+ * 
+ * @param compassScreen a pointer to the compass screen object structure to initialize. 
+ */
 void compass_screen_init(CompassScreen_t * const compassScreen);
 
-/* Set the compassAzimuth in degrees to show */
+/**
+ * @brief Registers a callback function which will be called every time the state of the application changes ie : is opened or closed.
+ *        This callback should be used to initialize and deinitialize needed devices drivers like the magnetometer or the temperature sensor.
+ * @note The state of the application is passed as a parameter or the callback function. 
+ * 
+ * @param compassScreen a pointer to the compass screen object structure.
+ * @param compassScreenOnStateChangeCb the callback of type CompassScreenOnStateChangeCb_t to register.
+ */
+void compass_screen_register_on_state_change_cb(CompassScreen_t * const compassScreen, CompassScreenOnStateChangeCb_t compassScreenOnStateChangeCb);
+
+/**
+ * @brief Registers a callback function which will be executed every time the compass refreshes.
+ *        This callback should retrieve the azimuth and temperature and pass it through the provided pointers.
+ * 
+ * @param compassScreen a pointer to the compass screen object structure.
+ * @param compassScreenOnStateChangeCb the callback of type CompassScreenAzimuthAndTemperatureCb_t to register.
+ */
+void compass_screen_register_azimuth_and_temperature_cb(CompassScreen_t * const compassScreen, CompassScreenAzimuthAndTemperatureCb_t compassScreenAzimuthAndTemperatureCb);
+
+/**
+ * @brief Sets the azimuth in degrees (relative to the north) to show on the compass UI.
+ * 
+ * @param compassScreen a pointer to the compass screen object structure. 
+ * @param azimuth the azimuth in degrees (0 to 359) relative to north to show. 
+ */
 void compass_screen_set_azimuth(CompassScreen_t * const compassScreen, uint16_t azimuth);
 
-/* Set the compassTemperature in degrees celsius to show */
+/**
+ * @brief Sets the temperature in degrees celsius to show on the compass UI.
+ * 
+ * @param compassScreen a pointer to the compass screen object structure. 
+ * @param temperature the temperature to display on the compass screen in degrees celsius.
+ */
 void compass_screen_set_temperature(CompassScreen_t * const compassScreen, float temperature);
 
-/* Builds the compass screen graphically  */
+/**
+ * @brief Returns true if the compass screen is currently being used and displayed.
+ * 
+ * @param compassScreen a pointer to the compass screen object structure. 
+ * @return true if the compass screen is being used .
+ * @return false if the compass screen is not being used/currently displayed.
+ */
+bool compass_screen_is_in_use(CompassScreen_t * const compassScreen);
+
+/**
+ * @brief Builds the compass screen graphically.
+ * 
+ * @param compassScreen a pointer to the compass screen object structure.
+ */
 void compass_screen_create(CompassScreen_t * const compassScreen);
 
-/* Frees all resources used by the CompassScreen object */
+/**
+ * @brief Frees all resources used by the CompassScreen object, to be called when discarding the compass screen.
+ * 
+ * @param compassScreen a pointer to the compass screen object structure.
+ */
 void compass_screen_destroy(CompassScreen_t * const compassScreen);
 
 #endif // COMPASS_SCREEN_H

src/lvgl_win_sim/lv_port_win_codeblocks/main.c

@@ -62,6 +62,30 @@ static void date_time_cb(struct tm * const dateTime)
     *dateTime = *tm;
 }
 
+static void compass_screen_on_state_change_cb(CompassScreenState_e compassScreenState)
+{
+    switch(compassScreenState)
+    {
+    case COMPASS_SCREEN_OPENED:
+        LV_LOG_USER("Compass Screen opened");
+        break;
+    case COMPASS_SCREEN_CLOSED:
+    default:
+        LV_LOG_USER("Compass Screen closed");
+        break;
+    }
+}
+
+static void azimuth_and_temperature_cb(uint16_t *azimuth, float *temperature)
+{
+    static uint16_t _azimuth = 0;
+    static float _temp = -20;
+
+    *azimuth = _azimuth++;
+    *temperature = _temp += 0.9;
+    if(_temp > 120) _temp = -20;
+}
+
 static void alti_meas_cb(float * const temperature, float * const pressure, float * const altitude)
 {
     static float a = 425.5;
@@ -110,21 +134,24 @@ int APIENTRY WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR szCmdLi
     lv_win32_init(hInstance, SW_SHOWNORMAL, 240, 240, NULL);
 
     /*Output prompt information to the console, you can also use printf() to print directly*/
-    LV_LOG_USER("LVGL initialization completed!");
+    LV_LOG_USER("LVGL initialization completed, color size is : %u !", LV_COLOR_SIZE);
     LV_IMG_DECLARE(watch_mask)
 
     /*Run the demo*/
     //lv_demo_widgets();
-    lv_obj_t *top_layer = lv_layer_top();
+    lv_obj_t *sys_layer = lv_layer_sys();
     //We apply the mask to simulate what we can see on the watch screen
-    lv_obj_t *screen_mask = lv_img_create(top_layer);
+    lv_obj_t *screen_mask = lv_img_create(sys_layer);
     lv_img_set_src(screen_mask, &watch_mask);
 
     watch_face_init(&watchFace);
     menu_screen_init(&menuScreen);
     compass_screen_init(&compassScreen);
+    compass_screen_register_on_state_change_cb(&compassScreen, &(compass_screen_on_state_change_cb));
+    compass_screen_register_azimuth_and_temperature_cb(&compassScreen, &(azimuth_and_temperature_cb));
     settings_screen_init(&settingsScreen);
     altimeter_screen_init(&altimeterScreen);
+    altimeter_screen_register_measurement_cb(&altimeterScreen, &(alti_meas_cb));
     notification_screen_init(&notificationScreen);
     find_my_phone_screen_init(&findMyPhoneScreen);
     find_my_phone_screen_register_BLE_command_send_cb(&findMyPhoneScreen, &(sendMyFindPhoneBLECommandCb));
@@ -138,8 +165,6 @@ int APIENTRY WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR szCmdLi
     music_player_screen_set_music_position(&musicPlayerScreen, 2*60+12);
     music_player_screen_set_music_playing_state(&musicPlayerScreen, MUSIC_CONTROL_PLAY);
 
-    altimeter_screen_register_measurement_cb(&altimeterScreen, &(alti_meas_cb));
-
     watch_face_register_date_time_cb(&watchFace, &(date_time_cb));
     watch_face_create(&watchFace);
 

src/lvgl_win_sim/lv_port_win_codeblocks/notification_screen.c

@@ -1,15 +1,45 @@
+#include <stdio.h>
 #include <stdlib.h>
 #include "notification_screen.h"
 
-bool _notification_list_is_empty(NotificationList_t notificationList);
+/* Internal API to manage notification objects */
+bool _notification_list_is_empty(NotificationDataList_t notificationList);
+void _notification_list_add_head(NotificationDataList_t *notificationList, NotificationData_t *notification);
+NotificationData_t *_notification_list_remove_tail(NotificationDataList_t *notificationList);
+NotificationData_t *_notification_list_remove_by_handle(NotificationDataList_t *notificationList, uint32_t handle);
+uint8_t _notification_list_count(NotificationDataList_t notificationList);
+uint8_t _notification_list_unread_count(NotificationDataList_t notificationList);
 
-void _notification_list_add_head(NotificationList_t *notificationList, Notification_t *notification);
+void _notification_list_debug(NotificationDataList_t notificationList);
+/* Internal UI API */
+void _display_message_notification(NotificationScreen_t * const notificationScreen, NotificationData_t *notification);
+void _notification_popup_destroy(NotificationScreen_t * const notificationScreen);
+const char *_notification_type_to_char(NotificationType_e notificationType);
+const char *_notification_timestamp_to_date(time_t timestamp);
 
-Notification_t *_notification_list_remove_tail(NotificationList_t *notificationList);
-
-uint8_t _notification_list_count(NotificationList_t notificationList);
-
-void _notification_list_debug(NotificationList_t notificationList);
+static void notification_scrolled_event_cb(lv_event_t *e)
+{
+    NotificationScreen_t *notificationScreen = lv_event_get_user_data(e);
+    NotificationData_t *notification = lv_obj_get_user_data(lv_event_get_target(e));
+    //If we didn't scroll down enough, make the notif pop again
+    if(lv_obj_get_scroll_y(e->target) >= 83)
+    {
+        lv_obj_scroll_to_y(e->target, 166, LV_ANIM_ON);
+    }
+    //Else we know that the user wants to close the notification, so we do it with an animation to reach 0
+    else if(lv_obj_get_scroll_y(e->target) != 0)
+    {
+        lv_obj_scroll_to_y(e->target, 0, LV_ANIM_ON);
+    }
+    else //We scrolled enough to tell that we saw the notification and that we want to close it
+    {
+        LV_LOG_USER("Notification closed");
+        _notification_popup_destroy(notificationScreen);
+        notificationScreen->new_notification_available = false;
+        notification->read = true;
+        if(notificationScreen->notificationOnStateChangeCb) notificationScreen->notificationOnStateChangeCb(NOTIFICATION_STATE_CLEARED);
+    }
+}
 
 void notification_screen_init(NotificationScreen_t * const notificationScreen)
 {
@@ -19,14 +49,14 @@ void notification_screen_init(NotificationScreen_t * const notificationScreen)
         return;
     }
 
+    memset(notificationScreen, 0, sizeof(NotificationScreen_t));
+
     //Let's initialize the list of free notifications from the pool
     for(uint8_t i = 0; i < MAX_NOTIFICATIONS_COUNT; i++)
         _notification_list_add_head(&notificationScreen->freeNotificationList, notificationScreen->notificationPool + i);
-
-    notification_screen_notify(notificationScreen, 42, NOTIFICATION_TYPE_UNKNOWN, NULL, NULL);
 }
 
-void notification_screen_notify(NotificationScreen_t * const notificationScreen, uint32_t handle, NotificationType_e notificationType, char * title, char * body)
+void notification_screen_register_on_state_change_cb(NotificationScreen_t * const notificationScreen, NotificationOnStateChangeCb_t notificationOnStateChangeCb)
 {
     if(!notificationScreen)
     {
@@ -34,7 +64,18 @@ void notification_screen_notify(NotificationScreen_t * const notificationScreen,
         return;
     }
 
-    Notification_t *notification = NULL;
+    notificationScreen->notificationOnStateChangeCb = notificationOnStateChangeCb;
+}
+
+void notification_screen_notify(NotificationScreen_t * const notificationScreen, uint32_t handle, time_t dateOfArrival, NotificationType_e notificationType, char * title, char * body)
+{
+    if(!notificationScreen)
+    {
+        LV_LOG_ERROR("NULL pointer given !");
+        return;
+    }
+
+    NotificationData_t *notification = NULL;
 
     //We try to get a notification from the free list.
     if((notification = _notification_list_remove_tail(&notificationScreen->freeNotificationList)) == NULL)
@@ -53,32 +94,66 @@ void notification_screen_notify(NotificationScreen_t * const notificationScreen,
     }
 
     notification->handle = handle;
+    notification->dateOfArrival = dateOfArrival;
     notification->type = notificationType;
     notification->title = title;
     notification->body = body;
+    notification->read = false;
 
     _notification_list_add_head(&notificationScreen->notificationList, notification);
+    notificationScreen->new_notification_available = true;
 
-    //Create and display a graphical widget containing the notification
-    lv_obj_t *notification_display = lv_layer_sys();
-
-    if(!notification_display)
+    switch(notificationType)
     {
-        LV_LOG_ERROR("Could not retrieve sys layer !");
-        return;
+    case NOTIFICATION_TYPE_CALL:
+        break;
+    default:
+        _display_message_notification(notificationScreen, notification);
+        if(notificationScreen->notificationOnStateChangeCb) notificationScreen->notificationOnStateChangeCb(NOTIFICATION_STATE_DISPLAYED);
     }
-    /*lv_obj_t *obj = lv_obj_create(notification_display);
-    lv_obj_set_style_bg_color(obj, lv_palette_main(LV_PALETTE_RED), LV_PART_MAIN);
-    lv_obj_set_height(obj, lv_disp_get_hor_res(NULL)/2);
-    lv_obj_set_style_bg_opa(notification_display, 255, LV_PART_MAIN);*/
 }
 
-bool _notification_list_is_empty(NotificationList_t notificationList)
+bool notification_screen_new_notification_available(NotificationScreen_t * const notificationScreen)
+{
+    if(!notificationScreen)
+    {
+        LV_LOG_ERROR("NULL pointer given !");
+        return false;
+    }
+
+    if(notificationScreen->new_notification_available)
+    {
+        notificationScreen->new_notification_available = false;
+        return true;
+    }
+    return false;
+}
+
+uint8_t notification_screen_notification_count(NotificationScreen_t * const notificationScreen)
+{
+    return _notification_list_count(notificationScreen->notificationList);
+}
+
+uint8_t notification_screen_unread_notification_count(NotificationScreen_t * const notificationScreen)
+{
+    return _notification_list_unread_count(notificationScreen->notificationList);;
+}
+
+void notification_screen_destroy(NotificationScreen_t * const notificationScreen)
+{
+    if(!notificationScreen)
+    {
+        LV_LOG_ERROR("NULL pointer given !");
+        return;
+    }
+}
+
+bool _notification_list_is_empty(NotificationDataList_t notificationList)
 {
     return notificationList == NULL;
 }
 
-void _notification_list_add_head(NotificationList_t *notificationList, Notification_t *notification)
+void _notification_list_add_head(NotificationDataList_t *notificationList, NotificationData_t *notification)
 {
     if(!notificationList || !notification) return;
 
@@ -91,13 +166,13 @@ void _notification_list_add_head(NotificationList_t *notificationList, Notificat
     }
 }
 
-Notification_t *_notification_list_remove_tail(NotificationList_t *notificationList)
+NotificationData_t *_notification_list_remove_tail(NotificationDataList_t *notificationList)
 {
     if(!notificationList) return NULL;
 
     if(_notification_list_is_empty(*notificationList)) return NULL;
 
-    Notification_t *toReturn = NULL;
+    NotificationData_t *toReturn = NULL;
 
     //There is only one item in the list
     if((*notificationList)->next == NULL)
@@ -107,7 +182,7 @@ Notification_t *_notification_list_remove_tail(NotificationList_t *notificationL
         return toReturn;
     }
 
-    NotificationList_t cursor = *notificationList;
+    NotificationDataList_t cursor = *notificationList;
     while(!_notification_list_is_empty(cursor->next->next))
     {
         cursor = cursor->next;
@@ -118,7 +193,40 @@ Notification_t *_notification_list_remove_tail(NotificationList_t *notificationL
     return toReturn;
 }
 
-uint8_t _notification_list_count(NotificationList_t notificationList)
+NotificationData_t *_notification_list_remove_by_handle(NotificationDataList_t *notificationList, uint32_t handle)
+{
+    if(!notificationList) return NULL;
+
+    if(_notification_list_is_empty(*notificationList)) return NULL;
+
+    NotificationData_t *toReturn = NULL;
+
+    //There is only one item in the list
+    if((*notificationList)->next == NULL)
+    {
+        if((*notificationList)->handle == handle)
+        {
+            toReturn = *notificationList;
+            *notificationList = NULL;
+        }
+        return toReturn;
+    }
+
+    NotificationDataList_t cursor = *notificationList;
+    while(!_notification_list_is_empty(cursor->next))
+    {
+        if(cursor->next->handle == handle)
+        {
+            toReturn = cursor->next;
+            cursor->next = NULL;
+            return toReturn;
+        }
+        cursor = cursor->next;
+    }
+    return toReturn;
+}
+
+uint8_t _notification_list_count(NotificationDataList_t notificationList)
 {
     uint8_t count = 0;
     while(!_notification_list_is_empty(notificationList))
@@ -130,7 +238,169 @@ uint8_t _notification_list_count(NotificationList_t notificationList)
     return count;
 }
 
-void _notification_list_debug(NotificationList_t notificationList)
+uint8_t _notification_list_unread_count(NotificationDataList_t notificationList)
+{
+    uint8_t count = 0;
+    while(!_notification_list_is_empty(notificationList))
+    {
+        if(!notificationList->read)count++;
+        notificationList = notificationList->next;
+    }
+
+    return count;
+}
+
+void _display_message_notification(NotificationScreen_t * const notificationScreen, NotificationData_t *notification)
+{
+    //Create and display a graphical widget containing the notification
+    lv_obj_t *notification_display = lv_layer_top();
+
+    if(!notification_display)
+    {
+        LV_LOG_ERROR("Could not retrieve sys layer !");
+        return;
+    }
+
+    /*We can have two cases :
+    1) No notification is currently being displayed, so we create the needed UI objects
+    2) A notification is currently being shown and all UI elements were already created / allocated
+    */
+
+    lv_obj_set_user_data(notification_display, notification);
+
+    if(lv_obj_get_child_cnt(notification_display) == 0)
+    {
+        //Only allow to scroll down and not up (LV_DIR_TOP makes it, is it a bug ?)
+        lv_obj_set_scroll_dir(notification_display, LV_DIR_TOP);
+        lv_obj_add_event_cb(notification_display, &(notification_scrolled_event_cb), LV_EVENT_SCROLL_END, notificationScreen);
+
+        lv_obj_t *main_notification = lv_obj_create(notification_display);
+        lv_obj_set_size(main_notification, 202, 166);
+        lv_obj_set_style_pad_all(main_notification, 0, LV_PART_MAIN);
+        lv_obj_set_style_pad_top(main_notification, 10, LV_PART_MAIN);
+        lv_obj_set_style_border_width(main_notification, 0, LV_PART_MAIN);
+        lv_obj_set_style_radius(main_notification, 30, LV_PART_MAIN);
+        lv_obj_align(main_notification, LV_ALIGN_BOTTOM_MID,0,166);
+        lv_obj_set_style_bg_color(main_notification, lv_color_make(52, 93, 106), LV_PART_MAIN);
+        //lv_obj_set_style_opa(main_notification, 240, LV_PART_MAIN); //Opacity is too heavy on ram :-(
+
+        //Create the title, type and date labels
+        if(notificationScreen->type_label)
+        {
+            LV_LOG_ERROR("type_label should be NULL here !");
+            lv_obj_del(notificationScreen->type_label);
+            notificationScreen->type_label = NULL;
+        }
+        notificationScreen->type_label = lv_label_create(main_notification);
+        lv_obj_set_style_text_color(notificationScreen->type_label, lv_color_white(), LV_PART_MAIN);
+        lv_obj_set_style_pad_left(notificationScreen->type_label, 10, LV_PART_MAIN);
+        lv_label_set_long_mode(notificationScreen->type_label, LV_LABEL_LONG_SCROLL_CIRCULAR);
+        lv_obj_set_style_anim_speed(notificationScreen->type_label, 10, LV_PART_MAIN);
+        lv_obj_set_width(notificationScreen->type_label, lv_pct(27));
+        lv_label_set_text(notificationScreen->type_label, _notification_type_to_char(notification->type));
+
+        if(notificationScreen->title_label)
+        {
+            LV_LOG_ERROR("title_label should be NULL here !");
+            lv_obj_del(notificationScreen->title_label);
+            notificationScreen->title_label = NULL;
+        }
+        notificationScreen->title_label = lv_label_create(main_notification);
+        lv_obj_set_style_text_color(notificationScreen->title_label, lv_color_white(), LV_PART_MAIN);
+        lv_obj_align(notificationScreen->title_label, LV_ALIGN_TOP_MID, 0, 0);
+        lv_obj_set_style_anim_speed(notificationScreen->title_label, 10, LV_PART_MAIN);
+        lv_label_set_long_mode(notificationScreen->title_label, LV_LABEL_LONG_SCROLL_CIRCULAR);
+        lv_obj_set_width(notificationScreen->title_label, lv_pct(40));
+        lv_label_set_text_static(notificationScreen->title_label, notification->title);
+
+        if(notificationScreen->date_label)
+        {
+            LV_LOG_ERROR("date_label should be NULL here !");
+            lv_obj_del(notificationScreen->date_label);
+            notificationScreen->date_label = NULL;
+        }
+        notificationScreen->date_label = lv_label_create(main_notification);
+        lv_obj_set_style_pad_right(notificationScreen->date_label, 10, LV_PART_MAIN);
+        lv_obj_set_style_text_color(notificationScreen->date_label, lv_color_white(), LV_PART_MAIN);
+        lv_obj_align(notificationScreen->date_label, LV_ALIGN_TOP_RIGHT, 0, 0);
+        lv_label_set_text(notificationScreen->date_label, _notification_timestamp_to_date(notification->dateOfArrival));
+
+        //Create the sub-area in the notification
+        lv_obj_t *sub_area = lv_obj_create(main_notification);
+        lv_obj_set_style_pad_all(sub_area, 10, LV_PART_MAIN);
+        lv_obj_set_style_border_width(sub_area, 0, LV_PART_MAIN);
+        lv_obj_set_style_radius(sub_area, 0, LV_PART_MAIN);
+        lv_obj_set_width(sub_area, 202);
+        lv_obj_set_height(sub_area, 136);
+        lv_obj_align(sub_area, LV_ALIGN_BOTTOM_MID, 0, 0);
+        lv_obj_set_style_bg_color(sub_area, lv_color_make(22, 52, 62), LV_PART_MAIN);
+        //Create the main text
+        if(notificationScreen->body_label)
+        {
+            LV_LOG_ERROR("body_label should be NULL here !");
+            lv_obj_del(notificationScreen->body_label);
+            notificationScreen->body_label = NULL;
+        }
+        notificationScreen->body_label = lv_label_create(sub_area);
+        lv_obj_set_width(notificationScreen->body_label, 182);
+        lv_obj_set_style_text_color(notificationScreen->body_label, lv_color_white(), LV_PART_MAIN);
+        lv_obj_set_style_pad_all(notificationScreen->body_label, 0, LV_PART_MAIN);
+        lv_obj_set_style_pad_bottom(notificationScreen->body_label, 40, LV_PART_MAIN);
+        lv_label_set_long_mode(notificationScreen->body_label, LV_LABEL_LONG_WRAP);
+        lv_label_set_text_static(notificationScreen->body_label, notification->body);
+
+
+        lv_obj_scroll_to_y(notification_display, 166, LV_ANIM_ON);
+    }
+    else
+    {
+        LV_LOG_USER("A notification is already being displayed, updating it's content !");
+        //We just have to update the notification content
+        lv_label_set_text_static(notificationScreen->type_label, _notification_type_to_char(notification->type));
+        lv_label_set_text_static(notificationScreen->title_label, notification->title);
+        lv_label_set_text_static(notificationScreen->date_label, _notification_timestamp_to_date(notification->dateOfArrival));
+        lv_label_set_text_static(notificationScreen->body_label, notification->body);
+    }
+}
+
+void _notification_popup_destroy(NotificationScreen_t * const notificationScreen)
+{
+    lv_obj_clean(lv_layer_top());
+    lv_obj_remove_event_cb_with_user_data(lv_layer_top(), &(notification_scrolled_event_cb), notificationScreen);
+    notificationScreen->type_label = NULL;
+    notificationScreen->title_label = NULL;
+    notificationScreen->date_label = NULL;
+    notificationScreen->body_label = NULL;
+}
+
+const char *_notification_type_to_char(NotificationType_e notificationType)
+{
+    switch(notificationType)
+    {
+    case NOTIFICATION_TYPE_SMS:
+        return "Sms";
+    case NOTIFICATION_TYPE_EMAIL:
+        return "Email";
+    case NOTIFICATION_TYPE_WHATSAPP:
+        return "WhatsApp";
+    case NOTIFICATION_TYPE_GADGET_BRIDGE:
+        return "GadgetBridge";
+    case NOTIFICATION_TYPE_UNKNOWN:
+    default:
+        return "Unknown";
+    }
+}
+
+const char *_notification_timestamp_to_date(time_t timestamp)
+{
+    static char date[9]; //Ex 7:23PM
+
+    struct tm *time = gmtime(&timestamp);
+    sprintf(date, "%s%d:%s%d", time->tm_hour > 10 ? "" : "0", time->tm_hour, time->tm_min > 10 ? "" : "0", time->tm_min);
+    return date;
+}
+
+void _notification_list_debug(NotificationDataList_t notificationList)
 {
    while(!_notification_list_is_empty(notificationList))
    {

src/lvgl_win_sim/lv_port_win_codeblocks/notification_screen.h

@@ -1,8 +1,13 @@
 #ifndef NOTIFICATION_SCREEN_H
+#define NOTIFICATION_SCREEN_H
 
 #include "lvgl.h"
+#include <time.h>
 
-#define MAX_NOTIFICATIONS_COUNT (10) //The maximum number of notifications which will be stored before the oldest one gets discarded.
+/* The maximum number of notifications which will be stored before the oldest one gets discarded
+to make room for the new one.
+*/
+#define MAX_NOTIFICATIONS_COUNT (10)
 
 typedef enum NotificationType
 {
@@ -11,32 +16,61 @@ typedef enum NotificationType
     NOTIFICATION_TYPE_WHATSAPP,
     NOTIFICATION_TYPE_GADGET_BRIDGE,
     NOTIFICATION_TYPE_UNKNOWN,
+    // This enum value has no match in GadgetBridge's enum
+    NOTIFICATION_TYPE_CALL,
 } NotificationType_e;
 
-typedef struct Notification
+typedef enum NotificationState
 {
-    struct Notification *next;
+    NOTIFICATION_STATE_CLEARED = 0,
+    NOTIFICATION_STATE_DISPLAYED = 1,
+} NotificationState_e;
+
+typedef struct NotificationData
+{
+    struct NotificationData *next;
     uint32_t handle;
-    NotificationType_e type;
+    time_t dateOfArrival;
     char *title;
     char *body;
-} Notification_t, *NotificationList_t;
+    NotificationType_e type;
+    bool read; // Has the notification been read (aka closed by the user)
+
+} NotificationData_t, *NotificationDataList_t;
+
+typedef void (*NotificationOnStateChangeCb_t)(NotificationState_e notificationState);
 
 typedef struct NotificationScreen
 {
-    //Can be erased attributes
+    // Can be erased attributes
     lv_obj_t *display;
 
-    //Should not be erased attributes
-    Notification_t notificationPool[MAX_NOTIFICATIONS_COUNT];
-    NotificationList_t notificationList; //Actual notifications
-    NotificationList_t freeNotificationList; //Free notiffication object pool
-
+    // Should not be erased attributes
+    // Notification UI object
+    lv_obj_t *type_label;
+    lv_obj_t *title_label;
+    lv_obj_t *date_label;
+    lv_obj_t *body_label;
+    NotificationOnStateChangeCb_t notificationOnStateChangeCb;
+    // Notification history data structure
+    NotificationData_t notificationPool[MAX_NOTIFICATIONS_COUNT];
+    NotificationDataList_t notificationList; // Actual notifications
+    NotificationDataList_t freeNotificationList; // Free notification object pool
+    // Miscellaneous
+    bool new_notification_available;
 } NotificationScreen_t;
 
 void notification_screen_init(NotificationScreen_t * const notificationScreen);
 
-void notification_screen_notify(NotificationScreen_t * const notificationScreen, uint32_t handle, NotificationType_e notificationType, char * title, char * body);
+void notification_screen_register_on_state_change_cb(NotificationScreen_t * const notificationScreen, NotificationOnStateChangeCb_t notificationOnStateChangeCb);
+
+void notification_screen_notify(NotificationScreen_t * const notificationScreen, uint32_t handle, time_t dateOfArrival, NotificationType_e notificationType, char * title, char * body);
+
+bool notification_screen_new_notification_available(NotificationScreen_t * const notificationScreen);
+
+uint8_t notification_screen_notification_count(NotificationScreen_t * const notificationScreen);
+
+uint8_t notification_screen_unread_notification_count(NotificationScreen_t * const notificationScreen);
 
 void notification_screen_create(NotificationScreen_t * const notificationScreen);
 

src/lvgl_win_sim/lv_port_win_codeblocks/settings_screen.c

@@ -26,7 +26,7 @@ static void _reset_switch_pointers(SettingsScreen_t * const settingsScreen)
     settingsScreen->ble_switch = NULL;
     settingsScreen->auto_set_time_switch = NULL;
 }
-static lv_obj_t *add_menu_list_item(lv_obj_t *list, const char *text, lv_event_cb_t event_cb, void *user_data);
+static lv_obj_t *add_menu_list_item(lv_obj_t *list, const char *text, lv_event_cb_t event_cb, void *user_data, SettingsScreenCategory_e category);
 static void update_menu_list_item_text(lv_obj_t *menu_list_item, const char *text);
 
 static void gesture_event_cb(lv_event_t *e)
@@ -164,9 +164,6 @@ static void about_refresh_timer_cb(lv_timer_t *timer)
 
 static void load_time_and_date_side_screen(SettingsScreen_t *settingsScreen)
 {
-    lv_obj_clean(settingsScreen->side_screen);
-    _reset_switch_pointers(settingsScreen);
-
     lv_obj_t *label = lv_label_create(settingsScreen->side_screen);
     lv_label_set_text_static(label, "Set Time & Date :");
 
@@ -254,9 +251,6 @@ static void load_time_and_date_side_screen(SettingsScreen_t *settingsScreen)
 
 static void load_display_side_screen(SettingsScreen_t *settingsScreen)
 {
-    lv_obj_clean(settingsScreen->side_screen);
-    _reset_switch_pointers(settingsScreen);
-
     lv_obj_t *label = lv_label_create(settingsScreen->side_screen);
     lv_label_set_text_static(label, "Brightness :");
 
@@ -323,9 +317,6 @@ static void load_display_side_screen(SettingsScreen_t *settingsScreen)
 
 static void load_notifications_side_screen(SettingsScreen_t *settingsScreen)
 {
-    lv_obj_clean(settingsScreen->side_screen);
-    _reset_switch_pointers(settingsScreen);
-
     lv_obj_t *label = lv_label_create(settingsScreen->side_screen);
     lv_label_set_text_static(label, "Vibrate on\nnotifications :");
 
@@ -352,9 +343,6 @@ static void load_notifications_side_screen(SettingsScreen_t *settingsScreen)
 
 static void load_connectivity_side_screen(SettingsScreen_t *settingsScreen)
 {
-    lv_obj_clean(settingsScreen->side_screen);
-    _reset_switch_pointers(settingsScreen);
-
     lv_obj_t *label = lv_label_create(settingsScreen->side_screen);
     lv_label_set_text_static(label, "Connectivity :");
 
@@ -407,9 +395,6 @@ static void load_connectivity_side_screen(SettingsScreen_t *settingsScreen)
 
 static void load_language_side_screen(SettingsScreen_t *settingsScreen)
 {
-    lv_obj_clean(settingsScreen->side_screen);
-    _reset_switch_pointers(settingsScreen);
-
     lv_obj_t *label = lv_label_create(settingsScreen->side_screen);
     lv_label_set_text_static(label, "Language :");
 
@@ -421,9 +406,6 @@ static void load_language_side_screen(SettingsScreen_t *settingsScreen)
 
 static void load_about_side_screen(SettingsScreen_t *settingsScreen)
 {
-    lv_obj_clean(settingsScreen->side_screen);
-    _reset_switch_pointers(settingsScreen);
-
     lv_obj_t *label = lv_label_create(settingsScreen->side_screen);
     lv_label_set_text_static(label, "System Info :");
 
@@ -521,7 +503,7 @@ static void load_about_side_screen(SettingsScreen_t *settingsScreen)
         lv_timer_del(settingsScreen->about_refresh_timer);
         settingsScreen->about_refresh_timer = NULL;
     }
-    settingsScreen->about_refresh_timer = lv_timer_create(&(about_refresh_timer_cb), 1000, settingsScreen);
+    settingsScreen->about_refresh_timer = lv_timer_create(&(about_refresh_timer_cb), 150, settingsScreen);
 }
 
 static void menu_list_item_event_handler(lv_event_t * e)
@@ -541,6 +523,17 @@ void settings_screen_init(SettingsScreen_t * const settingsScreen)
     memset(settingsScreen, 0, sizeof(SettingsScreen_t));
 }
 
+void settings_screen_register_on_state_change_cb(SettingsScreen_t * const settingsScreen, SettingsScreenOnStateChangeCb_t settingsScreenOnStateChangeCb)
+{
+    if(!settingsScreen)
+    {
+        LV_LOG_ERROR("NULL pointer given !");
+        return;
+    }
+
+    settingsScreen->settingsScreenOnStateChangeCb = settingsScreenOnStateChangeCb;
+}
+
 void settings_screen_register_API_interface(SettingsScreen_t * const settingsScreen, SettingsScreenAPIInterface_t * const settingsScreenAPIInterface)
 {
     if(!settingsScreen)
@@ -563,7 +556,7 @@ void settings_screen_create(SettingsScreen_t * const settingsScreen)
         return;
     }
 
-    //We create our parent screen :
+    // We create our parent screen :
     if(settingsScreen->display)
     {
         LV_LOG_ERROR("display should be NULL here !");
@@ -572,10 +565,10 @@ void settings_screen_create(SettingsScreen_t * const settingsScreen)
     }
     settingsScreen->display = lv_obj_create(NULL);
 
-    //We add the screen header
+    // We add the screen header
     common_screen_header_component(settingsScreen->display, "Settings", 50);
 
-    //We create the menu list on the left hand side
+    // We create the menu list on the left hand side
     lv_obj_t *menu_list = lv_list_create(settingsScreen->display);
     lv_obj_set_size(menu_list, 75,190);
     lv_obj_set_pos(menu_list, 0, 50);
@@ -585,7 +578,7 @@ void settings_screen_create(SettingsScreen_t * const settingsScreen)
     lv_obj_set_style_pad_left(menu_list, 0, LV_PART_MAIN);
     lv_obj_set_style_pad_bottom(menu_list, 50, LV_PART_MAIN);
 
-    //We add the side screen containing the settings
+    // We add the side screen containing the settings
     settingsScreen->side_screen = lv_obj_create(settingsScreen->display);
     lv_obj_set_size(settingsScreen->side_screen, 165,190);
     lv_obj_set_pos(settingsScreen->side_screen, 75, 50);
@@ -595,20 +588,20 @@ void settings_screen_create(SettingsScreen_t * const settingsScreen)
     lv_obj_set_style_pad_bottom(settingsScreen->side_screen, 70, LV_PART_MAIN);
     lv_obj_set_scroll_dir(settingsScreen->side_screen, LV_DIR_VER);
 
-    //We add all the menu list items
-    settingsScreen->time_and_date_item = add_menu_list_item(menu_list, "Time & Date", &(menu_list_item_event_handler), settingsScreen);
-    settingsScreen->display_item = add_menu_list_item(menu_list, "Display", &(menu_list_item_event_handler), settingsScreen);
-    settingsScreen->notifications_item = add_menu_list_item(menu_list, "Notifications", &(menu_list_item_event_handler), settingsScreen);
-    settingsScreen->connectivity_item = add_menu_list_item(menu_list, "Connectivity", &(menu_list_item_event_handler), settingsScreen);
-    settingsScreen->language_item = add_menu_list_item(menu_list, "Language", &(menu_list_item_event_handler), settingsScreen);
-    settingsScreen->about_item = add_menu_list_item(menu_list, "About", &(menu_list_item_event_handler), settingsScreen);
+    // We add all the menu list items
+    settingsScreen->time_and_date_item = add_menu_list_item(menu_list, "Time & Date", &(menu_list_item_event_handler), settingsScreen, SETTINGS_SCREEN_CATEGORY_TIME_AND_DATE);
+    settingsScreen->display_item = add_menu_list_item(menu_list, "Display", &(menu_list_item_event_handler), settingsScreen, SETTINGS_SCREEN_CATEGORY_DISPLAY);
+    settingsScreen->notifications_item = add_menu_list_item(menu_list, "Notifications", &(menu_list_item_event_handler), settingsScreen, SETTINGS_SCREEN_CATEGORY_NOTIFICATION);
+    settingsScreen->connectivity_item = add_menu_list_item(menu_list, "Connectivity", &(menu_list_item_event_handler), settingsScreen, SETTINGS_SCREEN_CATEGORY_CONNECTIVITY);
+    settingsScreen->language_item = add_menu_list_item(menu_list, "Language", &(menu_list_item_event_handler), settingsScreen, SETTINGS_SCREEN_CATEGORY_LANGUAGE);
+    settingsScreen->about_item = add_menu_list_item(menu_list, "About", &(menu_list_item_event_handler), settingsScreen, SETTINGS_SCREEN_CATEGORY_ABOUT);
 
-    //We register the event callback to handle gesture
+    // We register the event callback to handle gesture
     lv_obj_add_event_cb(settingsScreen->display, &(gesture_event_cb), LV_EVENT_GESTURE, settingsScreen);
-    //We register the event callback to handle the cleanup
+    // We register the event callback to handle the cleanup
     lv_obj_add_event_cb(settingsScreen->display, &(cleanup_event_cb), LV_EVENT_DELETE, settingsScreen);
 
-    //We load the default side screen content (time and date)
+    // We load the default side screen content (time and date)
     _simulate_side_screen_item_click(settingsScreen, settingsScreen->time_and_date_item);
 }
 
@@ -620,6 +613,12 @@ void settings_screen_destroy(SettingsScreen_t * const settingsScreen)
         return;
     }
 
+    if (settingsScreen->last_selected_item)
+    {
+        if (settingsScreen->settingsScreenOnStateChangeCb)
+            settingsScreen->settingsScreenOnStateChangeCb(SETTINGS_SCREEN_STATE_CLOSED, (SettingsScreenCategory_e)lv_obj_get_user_data(settingsScreen->last_selected_item));
+    }
+
     settingsScreen->hour_roller         = NULL;
     settingsScreen->minute_roller       = NULL;
     settingsScreen->second_roller       = NULL;
@@ -641,13 +640,26 @@ static void _simulate_side_screen_item_click(SettingsScreen_t * const settingsSc
         settingsScreen->about_refresh_timer = NULL;
     }
 
-    //Updating the background of the selected category
+    // Updating the background of the selected category
     lv_obj_set_style_bg_color(item, lv_color_make(178, 223, 219), LV_PART_MAIN);
     if(settingsScreen->last_selected_item)
         lv_obj_set_style_bg_color(settingsScreen->last_selected_item, lv_color_white(), LV_PART_MAIN);
 
+    // Let's call the settings screen on state change callback if registered
+    if(settingsScreen->settingsScreenOnStateChangeCb)
+        settingsScreen->settingsScreenOnStateChangeCb(SETTINGS_SCREEN_STATE_OPENED, (SettingsScreenCategory_e)lv_obj_get_user_data(item));
+
+    if(settingsScreen->last_selected_item)
+    {
+        if(settingsScreen->settingsScreenOnStateChangeCb)
+            settingsScreen->settingsScreenOnStateChangeCb(SETTINGS_SCREEN_STATE_CLOSED, (SettingsScreenCategory_e)lv_obj_get_user_data(settingsScreen->last_selected_item));
+    }
+
     settingsScreen->last_selected_item = item;
 
+    lv_obj_clean(settingsScreen->side_screen);
+    _reset_switch_pointers(settingsScreen);
+
     if(item == settingsScreen->time_and_date_item)
     {
         load_time_and_date_side_screen(settingsScreen);
@@ -710,7 +722,7 @@ static void _enable_time_and_date_rollers(bool enabled, SettingsScreen_t * const
     }
 }
 
-static lv_obj_t *add_menu_list_item(lv_obj_t *list, const char *text, lv_event_cb_t event_cb, void *user_data)
+static lv_obj_t *add_menu_list_item(lv_obj_t *list, const char *text, lv_event_cb_t event_cb, void *user_data, SettingsScreenCategory_e category)
 {
     lv_obj_t *btn = lv_list_add_btn(list, NULL, text);
     lv_obj_t *label = lv_obj_get_child(btn, 0);
@@ -721,6 +733,7 @@ static lv_obj_t *add_menu_list_item(lv_obj_t *list, const char *text, lv_event_c
         lv_label_set_long_mode(label, LV_LABEL_LONG_WRAP);
     }
 
+    lv_obj_set_user_data(btn, (void *)category);
     lv_obj_add_event_cb(btn, event_cb, LV_EVENT_CLICKED, user_data);
     return btn;
 }

src/lvgl_win_sim/lv_port_win_codeblocks/settings_screen.h

@@ -8,6 +8,24 @@ typedef struct SettingsScreenAPIInterface
 
 } SettingsScreenAPIInterface_t;
 
+typedef enum SettingsScreenState
+{
+    SETTINGS_SCREEN_STATE_OPENED = 0,
+    SETTINGS_SCREEN_STATE_CLOSED
+} SettingsScreenState_e;
+
+typedef enum SettingsScreenCategory
+{
+    SETTINGS_SCREEN_CATEGORY_TIME_AND_DATE = 0,
+    SETTINGS_SCREEN_CATEGORY_DISPLAY,
+    SETTINGS_SCREEN_CATEGORY_NOTIFICATION,
+    SETTINGS_SCREEN_CATEGORY_CONNECTIVITY,
+    SETTINGS_SCREEN_CATEGORY_LANGUAGE,
+    SETTINGS_SCREEN_CATEGORY_ABOUT,
+} SettingsScreenCategory_e;
+
+typedef void (*SettingsScreenOnStateChangeCb_t)(SettingsScreenState_e settingsScreenState, SettingsScreenCategory_e settingsScreenCategory);
+
 typedef struct SettingsScreen
 {
     SettingsScreenAPIInterface_t settingsScreenAPIInterface;
@@ -64,10 +82,21 @@ typedef struct SettingsScreen
 
     /* Other */
     lv_timer_t *about_refresh_timer;
+    SettingsScreenOnStateChangeCb_t settingsScreenOnStateChangeCb;
 } SettingsScreen_t;
 
 void settings_screen_init(SettingsScreen_t * const settingsScreen);
 
+/**
+ * @brief Registers a callback function which will be called every time the state of the application changes ie : is opened or closed.
+ *        This callback should be used to initialize and deinitialize needed devices drivers like the magnetometer or the temperature sensor.
+ * @note The state of the application is passed as a parameter or the callback function. 
+ * 
+ * @param settingsScreen a pointer to the settings screen object structure.
+ * @param SettingsScreenOnStateChangeCb the callback of type @ref SettingsScreenOnStateChangeCb_t to register.
+ */
+void settings_screen_register_on_state_change_cb(SettingsScreen_t * const settingsScreen, SettingsScreenOnStateChangeCb_t SettingsScreenOnStateChangeCb);
+
 void settings_screen_register_API_interface(SettingsScreen_t * const settingsScreen, SettingsScreenAPIInterface_t * const settingsScreenAPIInterface);
 
 void settings_screen_create(SettingsScreen_t * const settingsScreen);

src/lvgl_win_sim/lv_port_win_codeblocks/watch_face.c

@@ -1,7 +1,9 @@
 #include "lvgl.h"
 #include "watch_face.h"
 #include "menu_screen.h"
+#include "notification_screen.h"
 #include <stdio.h>
+#include <stdlib.h>
 
 LV_IMG_DECLARE(battery_low_icon)
 LV_IMG_DECLARE(battery_charging_icon)
@@ -64,8 +66,6 @@ static void cleanup_event_cb(lv_event_t * e)
 
 static void update_watch_hands_angles(WatchFace_t * const watchFace, uint8_t increment)
 {
-
-    static uint8_t dateNum = 1;
     if(!watchFace)
     {
         LV_LOG_ERROR("NULL pointer given !");
@@ -76,16 +76,13 @@ static void update_watch_hands_angles(WatchFace_t * const watchFace, uint8_t inc
     if(watchFace->dateTimeCb)
     {
         //We compute each hand angle
-        if(!increment || watchFace->secondHand.handAngle >= 3660 || (int)watchFace->secondHand.handAngle % 100 > 50)
+        if(!increment || watchFace->secondHand.handAngle >= 3660 /*|| (int)watchFace->secondHand.handAngle % 100 > 50*/)
         {
             watchFace->dateTimeCb(&watchFace->dateTime);
             watchFace->secondHand.handAngle = 60 * watchFace->dateTime.tm_sec;
 
-            dateNum++;
-            dateNum %= 31;
-
             //Don't forget to update the day date window
-            sprintf(watchFace->dateWindow.dateWindowText, "%d", /*watchFace->dateTime.tm_mday*/ dateNum);
+            sprintf(watchFace->dateWindow.dateWindowText, "%d", watchFace->dateTime.tm_mday);
             lv_label_set_text_static(watchFace->dateWindow.dateWindowWidget, watchFace->dateWindow.dateWindowText);
 
             if(watchFace->batteryIndicatorCb)
@@ -206,6 +203,20 @@ static void hide_hour_and_minutes_hand_cb(lv_event_t *e)
         lv_obj_add_flag(watchFace->hourHand.handImg, LV_OBJ_FLAG_HIDDEN);
         lv_obj_add_flag(watchFace->minuteHand.handImg, LV_OBJ_FLAG_HIDDEN);
     }*/
+
+    //Just for testing purposes, create a new notification
+    char *title = malloc(strlen("JoeJohny John")+1);
+    strcpy(title, "JoeJohny John");
+
+    char *body = malloc(300+1);
+strcpy(body, "Hey what's up dude ? What are you doing tonight ?\
+Wanna go to the fair with me ?\
+This is a quite long message I agree, but it is important\
+to let you know what I do for me and you bro !");
+
+    extern NotificationScreen_t notificationScreen;
+    notification_screen_notify(&notificationScreen, 1696358171, time(NULL) + 3600*2, NOTIFICATION_TYPE_GADGET_BRIDGE, title, body);
+    LV_LOG_USER("unread(%u)/ total(%u)", notification_screen_unread_notification_count(&notificationScreen), notification_screen_notification_count(&notificationScreen));
 }
 
 void watch_face_init(WatchFace_t * const watchFace)
@@ -304,11 +315,7 @@ void watch_face_create(WatchFace_t * const watchFace)
         lv_obj_del(watchFace->batteryIndicator.batteryIcon);
         watchFace->batteryIndicator.batteryIcon = NULL;
     }
-
     watchFace->batteryIndicator.batteryIcon = lv_img_create(watchFace->display);
-    set_battery_state_icon(watchFace);
-    lv_img_set_zoom(watchFace->batteryIndicator.batteryIcon, 141);
-    lv_obj_align_to(watchFace->batteryIndicator.batteryIcon, watchFace->batteryIndicator.label, LV_ALIGN_OUT_BOTTOM_MID, 0, -9);
 
     if(watchFace->batteryIndicator.lowBatteryAnimationTimer)
     {
@@ -319,6 +326,12 @@ void watch_face_create(WatchFace_t * const watchFace)
     watchFace->batteryIndicator.lowBatteryAnimationTimer = lv_timer_create(&(battery_timer_anim_cb), 500, watchFace);
     lv_timer_pause(watchFace->batteryIndicator.lowBatteryAnimationTimer);
 
+    // set_battery_state_icon internally needs to interact with the lowBatteryAnimationTimer,
+    // this is why we call the function after the timer has been created
+    set_battery_state_icon(watchFace);
+    lv_img_set_zoom(watchFace->batteryIndicator.batteryIcon, 141);
+    lv_obj_align_to(watchFace->batteryIndicator.batteryIcon, watchFace->batteryIndicator.label, LV_ALIGN_OUT_BOTTOM_MID, 0, -9);
+
     // Bluetooth status icon is created here
     if(watchFace->bluetoothIndicator.bluetoothIcon)
     {