Updating widget list when iconCache updates

> Fixing bug where items were not getting removed from the memcache
> Fixing bug where package entries were not getting removing because
of component mismatch.

Bug: 21612532
Change-Id: Ie56f3272f7fb7e1a37c5ff9bfa523d814edc1a02

src/com/android/launcher3/IconCache.java

@@ -275,6 +275,7 @@ public class IconCache {
             ComponentName component = ComponentName.unflattenFromString(cn);
             PackageInfo info = pkgInfoMap.get(component.getPackageName());
             if (info == null) {
+                remove(component, user);
                 itemsToRemove.add(c.getInt(rowIndex));
                 continue;
             }
@@ -291,6 +292,7 @@ public class IconCache {
                 continue;
             }
             if (app == null) {
+                remove(component, user);
                 itemsToRemove.add(c.getInt(rowIndex));
             } else {
                 appsToUpdate.add(app);
@@ -562,9 +564,10 @@ public class IconCache {
      */
     private CacheEntry getEntryForPackageLocked(String packageName, UserHandleCompat user,
             boolean useLowResIcon) {
-        ComponentName cn = new ComponentName(packageName, EMPTY_CLASS_NAME);
+        ComponentName cn = new ComponentName(packageName, packageName + EMPTY_CLASS_NAME);
         ComponentKey cacheKey = new ComponentKey(cn, user);
         CacheEntry entry = mCache.get(cacheKey);
+
         if (entry == null || (entry.isLowResIcon && !useLowResIcon)) {
             entry = new CacheEntry();
             boolean entryUpdated = true;

src/com/android/launcher3/LauncherModel.java

@@ -2932,6 +2932,9 @@ public class LauncherModel extends BroadcastReceiver
                 }
             });
         }
+
+        // Reload widget list. No need to refresh, as we only want to update the icons and labels.
+        loadAndBindWidgetsAndShortcuts(mApp.getContext(), callbacks, false);
     }
 
     void enqueuePackageUpdated(PackageUpdatedTask task) {

src/com/android/launcher3/model/WidgetsModel.java

@@ -8,7 +8,6 @@ import android.util.Log;
 import com.android.launcher3.IconCache;
 import com.android.launcher3.LauncherAppState;
 import com.android.launcher3.LauncherAppWidgetProviderInfo;
-
 import com.android.launcher3.Utilities;
 import com.android.launcher3.compat.AlphabeticIndexCompat;
 import com.android.launcher3.compat.UserHandleCompat;