Setup OnAppWidgetRemoved on framework (59ef5e98) · Commits · e / os / android_frameworks_base

api/current.txt

+1 −0

Original line number	Diff line number	Diff line
		@@ -7878,6 +7878,7 @@ package android.appwidget {
		method public void deleteAppWidgetId(int);
		method public void deleteHost();
		method public int[] getAppWidgetIds();
		method public void onAppWidgetRemoved(int);
		method protected android.appwidget.AppWidgetHostView onCreateView(android.content.Context, int, android.appwidget.AppWidgetProviderInfo);
		method protected void onProviderChanged(int, android.appwidget.AppWidgetProviderInfo);
		method protected void onProvidersChanged();

core/java/android/appwidget/AppWidgetHost.java

+32 −0

Original line number	Diff line number	Diff line
		@@ -56,6 +56,7 @@ public class AppWidgetHost {
		static final int HANDLE_PROVIDERS_CHANGED = 3;
		@UnsupportedAppUsage
		static final int HANDLE_VIEW_DATA_CHANGED = 4;
		static final int HANDLE_APP_WIDGET_REMOVED = 5;

		final static Object sServiceLock = new Object();
		@UnsupportedAppUsage
		@@ -103,6 +104,14 @@ public class AppWidgetHost {
		msg.sendToTarget();
		}

		public void appWidgetRemoved(int appWidgetId) {
		Handler handler = mWeakHandler.get();
		if (handler == null) {
		return;
		}
		handler.obtainMessage(HANDLE_APP_WIDGET_REMOVED, appWidgetId, 0).sendToTarget();
		}

		public void providersChanged() {
		Handler handler = mWeakHandler.get();
		if (handler == null) {
		@@ -137,6 +146,10 @@ public class AppWidgetHost {
		updateAppWidgetView(msg.arg1, (RemoteViews)msg.obj);
		break;
		}
		case HANDLE_APP_WIDGET_REMOVED: {
		dispatchOnAppWidgetRemoved(msg.arg1);
		break;
		}
		case HANDLE_PROVIDER_CHANGED: {
		onProviderChanged(msg.arg1, (AppWidgetProviderInfo)msg.obj);
		break;
		@@ -224,6 +237,10 @@ public class AppWidgetHost {
		break;
		case PendingHostUpdate.TYPE_VIEW_DATA_CHANGED:
		viewDataChanged(update.appWidgetId, update.viewId);
		break;
		case PendingHostUpdate.TYPE_APP_WIDGET_REMOVED:
		dispatchOnAppWidgetRemoved(update.appWidgetId);
		break;
		}
		}
		}
		@@ -426,6 +443,21 @@ public class AppWidgetHost {
		}
		}

		void dispatchOnAppWidgetRemoved(int appWidgetId) {
		synchronized (mViews) {
		mViews.remove(appWidgetId);
		}
		onAppWidgetRemoved(appWidgetId);
		}

		/**
		* Called when the app widget is removed for appWidgetId
		* @param appWidgetId
		*/
		public void onAppWidgetRemoved(int appWidgetId) {
		// Does nothing
		}

		/**
		* Called when the set of available widgets changes (ie. widget containing packages
		* are added, updated or removed, or widget components are enabled or disabled.)

core/java/android/appwidget/PendingHostUpdate.java

+8 −0

Original line number	Diff line number	Diff line
		@@ -28,6 +28,7 @@ public class PendingHostUpdate implements Parcelable {
		static final int TYPE_VIEWS_UPDATE = 0;
		static final int TYPE_PROVIDER_CHANGED = 1;
		static final int TYPE_VIEW_DATA_CHANGED = 2;
		static final int TYPE_APP_WIDGET_REMOVED = 3;

		final int appWidgetId;
		final int type;
		@@ -53,6 +54,13 @@ public class PendingHostUpdate implements Parcelable {
		return update;
		}

		/**
		* IAppWidgetHost appWidgetRemoved implimentaion
		*/
		public static PendingHostUpdate appWidgetRemoved(int appWidgetId) {
		return new PendingHostUpdate(appWidgetId, TYPE_APP_WIDGET_REMOVED);
		}

		private PendingHostUpdate(int appWidgetId, int type) {
		this.appWidgetId = appWidgetId;
		this.type = type;

core/java/com/android/internal/appwidget/IAppWidgetHost.aidl

+1 −0

Original line number	Diff line number	Diff line
		@@ -27,5 +27,6 @@ oneway interface IAppWidgetHost {
		void providerChanged(int appWidgetId, in AppWidgetProviderInfo info);
		void providersChanged();
		void viewDataChanged(int appWidgetId, int viewId);
		void appWidgetRemoved(int appWidgetId);
		}

services/appwidget/java/com/android/server/appwidget/AppWidgetServiceImpl.java

+58 −12

Original line number	Diff line number	Diff line
		@@ -19,6 +19,7 @@ package com.android.server.appwidget;
		import static android.content.Context.KEYGUARD_SERVICE;
		import static android.content.Intent.FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS;
		import static android.content.Intent.FLAG_ACTIVITY_NEW_TASK;

		import static com.android.server.pm.PackageManagerService.PLATFORM_PACKAGE_NAME;

		import android.annotation.UserIdInt;
		@@ -856,15 +857,15 @@ class AppWidgetServiceImpl extends IAppWidgetService.Stub implements WidgetBacku
		ArrayList<PendingHostUpdate> outUpdates = new ArrayList<>(N);
		LongSparseArray<PendingHostUpdate> updatesMap = new LongSparseArray<>();
		for (int i = 0; i < N; i++) {
		if (host.getPendingUpdatesForId(appWidgetIds[i], updatesMap)) {
		updatesMap.clear();
		host.getPendingUpdatesForId(appWidgetIds[i], updatesMap);
		// We key the updates based on request id, so that the values are sorted in the
		// order they were received.
		int M = updatesMap.size();
		for (int j = 0; j < M; j++) {
		int m = updatesMap.size();
		for (int j = 0; j < m; j++) {
		outUpdates.add(updatesMap.valueAt(j));
		}
		}
		}
		// Reset the update counter once all the updates have been calculated
		host.lastWidgetUpdateSequenceNo = updateSequenceNo;
		return new ParceledListSlice<>(outUpdates);
		@@ -2102,6 +2103,40 @@ class AppWidgetServiceImpl extends IAppWidgetService.Stub implements WidgetBacku
		}
		}

		private void scheduleNotifyAppWidgetRemovedLocked(Widget widget) {
		long requestId = UPDATE_COUNTER.incrementAndGet();
		if (widget != null) {
		widget.updateSequenceNos.clear();
		}
		if (widget == null \|\| widget.provider == null \|\| widget.provider.zombie
		\|\| widget.host.callbacks == null \|\| widget.host.zombie) {
		return;
		}

		SomeArgs args = SomeArgs.obtain();
		args.arg1 = widget.host;
		args.arg2 = widget.host.callbacks;
		args.arg3 = requestId;
		args.argi1 = widget.appWidgetId;

		mCallbackHandler.obtainMessage(
		CallbackHandler.MSG_NOTIFY_APP_WIDGET_REMOVED,
		args).sendToTarget();
		}

		private void handleNotifyAppWidgetRemoved(Host host, IAppWidgetHost callbacks, int appWidgetId,
		long requestId) {
		try {
		callbacks.appWidgetRemoved(appWidgetId);
		host.lastWidgetUpdateSequenceNo = requestId;
		} catch (RemoteException re) {
		synchronized (mLock) {
		Slog.e(TAG, "Widget host dead: " + host.id, re);
		host.callbacks = null;
		}
		}
		}

		private void scheduleNotifyGroupHostsForProvidersChangedLocked(int userId) {
		final int[] profileIds = mSecurityPolicy.getEnabledGroupProfileIds(userId);

		@@ -2870,8 +2905,8 @@ class AppWidgetServiceImpl extends IAppWidgetService.Stub implements WidgetBacku
		*/
		void removeWidgetLocked(Widget widget) {
		mWidgets.remove(widget);

		onWidgetRemovedLocked(widget);
		scheduleNotifyAppWidgetRemovedLocked(widget);
		}

		private void onWidgetRemovedLocked(Widget widget) {
		@@ -3587,6 +3622,7 @@ class AppWidgetServiceImpl extends IAppWidgetService.Stub implements WidgetBacku
		public static final int MSG_NOTIFY_PROVIDER_CHANGED = 2;
		public static final int MSG_NOTIFY_PROVIDERS_CHANGED = 3;
		public static final int MSG_NOTIFY_VIEW_DATA_CHANGED = 4;
		public static final int MSG_NOTIFY_APP_WIDGET_REMOVED = 5;

		public CallbackHandler(Looper looper) {
		super(looper, null, false);
		@@ -3619,6 +3655,16 @@ class AppWidgetServiceImpl extends IAppWidgetService.Stub implements WidgetBacku
		handleNotifyProviderChanged(host, callbacks, appWidgetId, info, requestId);
		} break;

		case MSG_NOTIFY_APP_WIDGET_REMOVED: {
		SomeArgs args = (SomeArgs) message.obj;
		Host host = (Host) args.arg1;
		IAppWidgetHost callbacks = (IAppWidgetHost) args.arg2;
		long requestId = (Long) args.arg3;
		final int appWidgetId = args.argi1;
		args.recycle();
		handleNotifyAppWidgetRemoved(host, callbacks, appWidgetId, requestId);
		} break;

		case MSG_NOTIFY_PROVIDERS_CHANGED: {
		SomeArgs args = (SomeArgs) message.obj;
		Host host = (Host) args.arg1;
		@@ -4017,14 +4063,13 @@ class AppWidgetServiceImpl extends IAppWidgetService.Stub implements WidgetBacku
		/**
		* Adds all pending updates in {@param outUpdates} keys by the update time.
		*/
		public boolean getPendingUpdatesForId(int appWidgetId,
		public void getPendingUpdatesForId(int appWidgetId,
		LongSparseArray<PendingHostUpdate> outUpdates) {
		long updateSequenceNo = lastWidgetUpdateSequenceNo;
		int N = widgets.size();
		for (int i = 0; i < N; i++) {
		Widget widget = widgets.get(i);
		if (widget.appWidgetId == appWidgetId) {
		outUpdates.clear();
		for (int j = widget.updateSequenceNos.size() - 1; j >= 0; j--) {
		long requestId = widget.updateSequenceNos.valueAt(j);
		if (requestId <= updateSequenceNo) {
		@@ -4046,10 +4091,11 @@ class AppWidgetServiceImpl extends IAppWidgetService.Stub implements WidgetBacku
		}
		outUpdates.put(requestId, update);
		}
		return true;
		return;
		}
		}
		return false;
		outUpdates.put(lastWidgetUpdateSequenceNo,
		PendingHostUpdate.appWidgetRemoved(appWidgetId));
		}

		@Override