Tile event handler : read the event data only if the event is a "value changed event". LVGL sends many other event and some of them do not set the event data (global static variable) to a valid address, which may cause an invalid read. I noticed that when porting this class on RISC-V platform (BL602).

src/displayapp/screens/Tile.h

@@ -32,7 +32,7 @@ namespace Pinetime {
 
         bool Refresh() override;
         void UpdateScreen();
-        void OnObjectEvent(lv_obj_t* obj, lv_event_t event, uint32_t buttonId);
+        void OnValueChangedEvent(lv_obj_t* obj, uint32_t buttonId);
 
       private:
         Pinetime::Controllers::Battery& batteryController;