remove home screen icons after uninstalling an app

app/src/main/kotlin/com/simplemobiletools/launcher/activities/MainActivity.kt

@@ -160,12 +160,19 @@ class MainActivity : SimpleActivity(), FlingListener {
         (all_apps_fragment as AllAppsFragment).gotLaunchers(launchers)
         (widgets_fragment as WidgetsFragment).getAppWidgets()
 
+        var hasDeletedAnything = false
         mCachedLaunchers.map { it.packageName }.forEach { packageName ->
             if (!launchers.map { it.packageName }.contains(packageName)) {
+                hasDeletedAnything = true
                 launchersDB.deleteApp(packageName)
+                homeScreenGridItemsDB.deleteItem(packageName)
             }
         }
 
+        if (hasDeletedAnything) {
+            home_screen_grid.fetchAppIcons()
+        }
+
         mCachedLaunchers = launchers
     }
 

app/src/main/kotlin/com/simplemobiletools/launcher/interfaces/HomeScreenGridItemsDao.kt

@@ -13,4 +13,7 @@ interface HomeScreenGridItemsDao {
 
     @Insert(onConflict = OnConflictStrategy.REPLACE)
     fun insertAll(items: List<HomeScreenGridItem>)
+
+    @Query("DELETE FROM home_screen_grid_items WHERE package_name = :packageName")
+    fun deleteItem(packageName: String)
 }

app/src/main/kotlin/com/simplemobiletools/launcher/views/HomeScreenGrid.kt

@@ -43,6 +43,7 @@ class HomeScreenGrid(context: Context, attrs: AttributeSet, defStyle: Int) : Vie
 
     fun fetchAppIcons() {
         ensureBackgroundThread {
+            appIconDrawables.clear()
             appIcons = context.homeScreenGridItemsDB.getAllItems() as ArrayList<HomeScreenGridItem>
             appIcons.forEach { item ->
                 val drawable = context.getDrawableForPackageName(item.packageName)