Call into app widget hosts when the provider is updated.

Change-Id: If0a2459901e88cf04810b23178e4673d44fa69cc

2 files changed, 23 insertions, 3 deletions

diff --git a/core/java/android/appwidget/AppWidgetHost.java b/core/java/android/appwidget/AppWidgetHost.java
index 456ceb6..88adabd 100644
--- a/core/java/android/appwidget/AppWidgetHost.java
+++ b/core/java/android/appwidget/AppWidgetHost.java
@@ -231,8 +231,14 @@ public class AppWidgetHost {
     /**
      * Called when the AppWidget provider for a AppWidget has been upgraded to a new apk.
      */
-    @SuppressWarnings({"UnusedDeclaration"})
     protected void onProviderChanged(int appWidgetId, AppWidgetProviderInfo appWidget) {
+        AppWidgetHostView v;
+        synchronized (mViews) {
+            v = mViews.get(appWidgetId);
+        }
+        if (v != null) {
+            v.updateAppWidget(null, AppWidgetHostView.UPDATE_FLAGS_RESET);
+        }
     }
 
     void updateAppWidgetView(int appWidgetId, RemoteViews views) {
@@ -241,7 +247,7 @@ public class AppWidgetHost {
             v = mViews.get(appWidgetId);
         }
         if (v != null) {
-            v.updateAppWidget(views);
+            v.updateAppWidget(views, 0);
         }
     }
 }
diff --git a/core/java/android/appwidget/AppWidgetHostView.java b/core/java/android/appwidget/AppWidgetHostView.java
index 792b289..5375193 100644
--- a/core/java/android/appwidget/AppWidgetHostView.java
+++ b/core/java/android/appwidget/AppWidgetHostView.java
@@ -46,6 +46,8 @@ public class AppWidgetHostView extends FrameLayout {
     static final boolean LOGD = false;
     static final boolean CROSSFADE = false;
 
+    static final int UPDATE_FLAGS_RESET = 0x00000001;
+
     static final int VIEW_MODE_NOINIT = 0;
     static final int VIEW_MODE_CONTENT = 1;
     static final int VIEW_MODE_ERROR = 2;
@@ -150,7 +152,16 @@ public class AppWidgetHostView extends FrameLayout {
      * AppWidget provider. Will animate into these new views as needed
      */
     public void updateAppWidget(RemoteViews remoteViews) {
-        if (LOGD) Log.d(TAG, "updateAppWidget called mOld=" + mOld);
+        updateAppWidget(remoteViews, 0);
+    }
+
+    void updateAppWidget(RemoteViews remoteViews, int flags) {
+        if (LOGD) Log.d(TAG, "updateAppWidget called mOld=" + mOld + " flags=0x"
+                + Integer.toHexString(flags));
+
+        if ((flags & UPDATE_FLAGS_RESET) != 0) {
+            mViewMode = VIEW_MODE_NOINIT;
+        }
         
         boolean recycled = false;
         View content = null;
@@ -323,6 +334,9 @@ public class AppWidgetHostView extends FrameLayout {
      * Inflate and return the default layout requested by AppWidget provider.
      */
     protected View getDefaultView() {
+        if (LOGD) {
+            Log.d(TAG, "getDefaultView");
+        }
         View defaultView = null;
         Exception exception = null;