Adding callback for widget size changed, and potentially other extra info (e8724c82) · Commits · e / os / android_frameworks_base

api/current.txt

+11 −0

Original line number	Diff line number	Diff line
		@@ -4301,10 +4301,13 @@ package android.appwidget {
		method protected void prepareView(android.view.View);
		method public void setAppWidget(int, android.appwidget.AppWidgetProviderInfo);
		method public void updateAppWidget(android.widget.RemoteViews);
		method public void updateAppWidgetExtras(android.os.Bundle);
		method public void updateAppWidgetSize(android.os.Bundle, int, int, int, int);
		}

		public class AppWidgetManager {
		method public void bindAppWidgetId(int, android.content.ComponentName);
		method public android.os.Bundle getAppWidgetExtras(int);
		method public int[] getAppWidgetIds(android.content.ComponentName);
		method public android.appwidget.AppWidgetProviderInfo getAppWidgetInfo(int);
		method public java.util.List<android.appwidget.AppWidgetProviderInfo> getInstalledProviders();
		@@ -4316,14 +4319,21 @@ package android.appwidget {
		method public void updateAppWidget(int[], android.widget.RemoteViews);
		method public void updateAppWidget(int, android.widget.RemoteViews);
		method public void updateAppWidget(android.content.ComponentName, android.widget.RemoteViews);
		method public void updateAppWidgetExtras(int, android.os.Bundle);
		field public static final java.lang.String ACTION_APPWIDGET_CONFIGURE = "android.appwidget.action.APPWIDGET_CONFIGURE";
		field public static final java.lang.String ACTION_APPWIDGET_DELETED = "android.appwidget.action.APPWIDGET_DELETED";
		field public static final java.lang.String ACTION_APPWIDGET_DISABLED = "android.appwidget.action.APPWIDGET_DISABLED";
		field public static final java.lang.String ACTION_APPWIDGET_ENABLED = "android.appwidget.action.APPWIDGET_ENABLED";
		field public static final java.lang.String ACTION_APPWIDGET_EXTRAS_CHANGED = "android.appwidget.action.APPWIDGET_UPDATE_EXTRAS";
		field public static final java.lang.String ACTION_APPWIDGET_PICK = "android.appwidget.action.APPWIDGET_PICK";
		field public static final java.lang.String ACTION_APPWIDGET_UPDATE = "android.appwidget.action.APPWIDGET_UPDATE";
		field public static final java.lang.String EXTRA_APPWIDGET_EXTRAS = "appWidgetExtras";
		field public static final java.lang.String EXTRA_APPWIDGET_ID = "appWidgetId";
		field public static final java.lang.String EXTRA_APPWIDGET_IDS = "appWidgetIds";
		field public static final java.lang.String EXTRA_APPWIDGET_MAX_HEIGHT = "appWidgetMaxHeight";
		field public static final java.lang.String EXTRA_APPWIDGET_MAX_WIDTH = "appWidgetMaxWidth";
		field public static final java.lang.String EXTRA_APPWIDGET_MIN_HEIGHT = "appWidgetMinHeight";
		field public static final java.lang.String EXTRA_APPWIDGET_MIN_WIDTH = "appWidgetMinWidth";
		field public static final java.lang.String EXTRA_CUSTOM_EXTRAS = "customExtras";
		field public static final java.lang.String EXTRA_CUSTOM_INFO = "customInfo";
		field public static final int INVALID_APPWIDGET_ID = 0; // 0x0
		@@ -4332,6 +4342,7 @@ package android.appwidget {

		public class AppWidgetProvider extends android.content.BroadcastReceiver {
		ctor public AppWidgetProvider();
		method public void onAppWidgetExtrasChanged(android.content.Context, android.appwidget.AppWidgetManager, int, android.os.Bundle);
		method public void onDeleted(android.content.Context, int[]);
		method public void onDisabled(android.content.Context);
		method public void onEnabled(android.content.Context);

core/java/android/appwidget/AppWidgetHostView.java

+40 −0

Original line number	Diff line number	Diff line
		@@ -28,6 +28,7 @@ import android.graphics.Color;
		import android.graphics.Paint;
		import android.graphics.Rect;
		import android.os.Build;
		import android.os.Bundle;
		import android.os.Parcel;
		import android.os.Parcelable;
		import android.os.SystemClock;
		@@ -206,6 +207,45 @@ public class AppWidgetHostView extends FrameLayout {
		super.dispatchRestoreInstanceState(jail);
		}

		@Override
		protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
		int oldWidth = getMeasuredWidth();
		int oldHeight = getMeasuredHeight();
		super.onMeasure(widthMeasureSpec, heightMeasureSpec);
		int newWidth = getMeasuredWidth();
		int newHeight = getMeasuredHeight();

		// TODO: this is just a hack for now -- we actually have the AppWidgetHost
		// be responsible for updating the size of the widget.
		if (oldWidth != newWidth \|\| oldHeight != newHeight) {
		final float density = mContext.getResources().getDisplayMetrics().density;
		final int newWidthDips = (int) (newWidth / density);
		final int newHeightDips = (int) (newHeight / density);
		updateAppWidgetSize(null, newWidthDips, newHeightDips, newWidthDips, newHeightDips);
		}
		}

		/**
		* Provide guidance about the size of this widget to the AppWidgetManager. This information
		* gets embedded into the AppWidgetExtras and causes a callback to the AppWidgetProvider.
		*
		* @see AppWidgetProvider#onAppWidgetExtrasChanged(Context, AppWidgetManager, int, Bundle)
		*/
		public void updateAppWidgetSize(Bundle extras, int minWidth, int minHeight, int maxWidth, int maxHeight) {
		if (extras == null) {
		extras = new Bundle();
		}
		extras.putInt(AppWidgetManager.EXTRA_APPWIDGET_MIN_WIDTH, minWidth);
		extras.putInt(AppWidgetManager.EXTRA_APPWIDGET_MIN_HEIGHT, minHeight);
		extras.putInt(AppWidgetManager.EXTRA_APPWIDGET_MAX_WIDTH, maxWidth);
		extras.putInt(AppWidgetManager.EXTRA_APPWIDGET_MAX_HEIGHT, maxHeight);
		updateAppWidgetExtras(extras);
		}

		public void updateAppWidgetExtras(Bundle extras) {
		AppWidgetManager.getInstance(mContext).updateAppWidgetExtras(mAppWidgetId, extras);
		}

		/** {@inheritDoc} */
		@Override
		public LayoutParams generateLayoutParams(AttributeSet attrs) {

core/java/android/appwidget/AppWidgetManager.java

+75 −0

Original line number	Diff line number	Diff line
		@@ -19,6 +19,7 @@ package android.appwidget;
		import android.content.ComponentName;
		import android.content.Context;
		import android.content.Intent;
		import android.os.Bundle;
		import android.os.IBinder;
		import android.os.RemoteException;
		import android.os.ServiceManager;
		@@ -108,6 +109,32 @@ public class AppWidgetManager {
		*/
		public static final String EXTRA_APPWIDGET_ID = "appWidgetId";

		/**
		* An bundle extra that contains the lower bound on the current width, in dips, of a widget instance.
		*/
		public static final String EXTRA_APPWIDGET_MIN_WIDTH = "appWidgetMinWidth";

		/**
		* An bundle extra that contains the lower bound on the current height, in dips, of a widget instance.
		*/
		public static final String EXTRA_APPWIDGET_MIN_HEIGHT = "appWidgetMinHeight";

		/**
		* An bundle extra that contains the upper bound on the current width, in dips, of a widget instance.
		*/
		public static final String EXTRA_APPWIDGET_MAX_WIDTH = "appWidgetMaxWidth";

		/**
		* An bundle extra that contains the upper bound on the current width, in dips, of a widget instance.
		*/
		public static final String EXTRA_APPWIDGET_MAX_HEIGHT = "appWidgetMaxHeight";

		/**
		* An intent extra which points to a bundle of extra information for a particular widget id.
		* In particular this bundle can contain EXTRA_APPWIDGET_WIDTH and EXTRA_APPWIDGET_HEIGHT.
		*/
		public static final String EXTRA_APPWIDGET_EXTRAS = "appWidgetExtras";

		/**
		* An intent extra that contains multiple appWidgetIds.
		* <p>
		@@ -160,6 +187,14 @@ public class AppWidgetManager {
		*/
		public static final String ACTION_APPWIDGET_UPDATE = "android.appwidget.action.APPWIDGET_UPDATE";

		/**
		* Sent when the custom extras for an AppWidget change.
		*
		* @see AppWidgetProvider#onAppWidgetExtrasChanged AppWidgetProvider#onAppWidgetExtrasChanged(
		* Context context, AppWidgetManager appWidgetManager, int appWidgetId, Bundle newExtras)
		*/
		public static final String ACTION_APPWIDGET_EXTRAS_CHANGED = "android.appwidget.action.APPWIDGET_UPDATE_EXTRAS";

		/**
		* Sent when an instance of an AppWidget is deleted from its host.
		*
		@@ -251,6 +286,46 @@ public class AppWidgetManager {
		}
		}

		/**
		* Update the extras for a given widget instance.
		*
		* The extras can be used to embed additional information about this widget to be accessed
		* by the associated widget's AppWidgetProvider.
		*
		* @see #getAppWidgetExtras(int)
		*
		* @param appWidgetId The AppWidget instances for which to set the RemoteViews.
		* @param extras The extras to associate with this widget
		*/
		public void updateAppWidgetExtras(int appWidgetId, Bundle extras) {
		try {
		sService.updateAppWidgetExtras(appWidgetId, extras);
		}
		catch (RemoteException e) {
		throw new RuntimeException("system server dead?", e);
		}
		}

		/**
		* Get the extras associated with a given widget instance.
		*
		* The extras can be used to embed additional information about this widget to be accessed
		* by the associated widget's AppWidgetProvider.
		*
		* @see #updateAppWidgetExtras(int, Bundle)
		*
		* @param appWidgetId The AppWidget instances for which to set the RemoteViews.
		* @return The extras associated with the given widget instance.
		*/
		public Bundle getAppWidgetExtras(int appWidgetId) {
		try {
		return sService.getAppWidgetExtras(appWidgetId);
		}
		catch (RemoteException e) {
		throw new RuntimeException("system server dead?", e);
		}
		}

		/**
		* Set the RemoteViews to use for the specified appWidgetId.
		*

core/java/android/appwidget/AppWidgetProvider.java

+31 −2

Original line number	Diff line number	Diff line
		@@ -74,6 +74,16 @@ public class AppWidgetProvider extends BroadcastReceiver {
		this.onDeleted(context, new int[] { appWidgetId });
		}
		}
		else if (AppWidgetManager.ACTION_APPWIDGET_EXTRAS_CHANGED.equals(action)) {
		Bundle extras = intent.getExtras();
		if (extras != null && extras.containsKey(AppWidgetManager.EXTRA_APPWIDGET_ID)
		&& extras.containsKey(AppWidgetManager.EXTRA_APPWIDGET_EXTRAS)) {
		int appWidgetId = extras.getInt(AppWidgetManager.EXTRA_APPWIDGET_ID);
		Bundle widgetExtras = extras.getBundle(AppWidgetManager.EXTRA_APPWIDGET_EXTRAS);
		this.onAppWidgetExtrasChanged(context, AppWidgetManager.getInstance(context),
		appWidgetId, widgetExtras);
		}
		}
		else if (AppWidgetManager.ACTION_APPWIDGET_ENABLED.equals(action)) {
		this.onEnabled(context);
		}
		@@ -103,6 +113,25 @@ public class AppWidgetProvider extends BroadcastReceiver {
		public void onUpdate(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds) {
		}

		/**
		* Called in response to the {@link AppWidgetManager#ACTION_APPWIDGET_EXTRAS_CHANGED}
		* broadcast when this widget has been layed out at a new size.
		*
		* {@more}
		*
		* @param context The {@link android.content.Context Context} in which this receiver is
		* running.
		* @param appWidgetManager A {@link AppWidgetManager} object you can call {@link
		* AppWidgetManager#updateAppWidget} on.
		* @param appWidgetId The appWidgetId of the widget who's size changed.
		* @param newExtras The appWidgetId of the widget who's size changed.
		*
		* @see AppWidgetManager#ACTION_APPWIDGET_EXTRAS_CHANGED
		*/
		public void onAppWidgetExtrasChanged(Context context, AppWidgetManager appWidgetManager,
		int appWidgetId, Bundle newExtras) {
		}

		/**
		* Called in response to the {@link AppWidgetManager#ACTION_APPWIDGET_DELETED} broadcast when
		* one or more AppWidget instances have been deleted. Override this method to implement

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

+3 −0

Original line number	Diff line number	Diff line
		@@ -20,6 +20,7 @@ import android.content.ComponentName;
		import android.content.Intent;
		import android.appwidget.AppWidgetProviderInfo;
		import com.android.internal.appwidget.IAppWidgetHost;
		import android.os.Bundle;
		import android.os.IBinder;
		import android.widget.RemoteViews;

		@@ -42,6 +43,8 @@ interface IAppWidgetService {
		// for AppWidgetManager
		//
		void updateAppWidgetIds(in int[] appWidgetIds, in RemoteViews views);
		void updateAppWidgetExtras(int appWidgetId, in Bundle extras);
		Bundle getAppWidgetExtras(int appWidgetId);
		void partiallyUpdateAppWidgetIds(in int[] appWidgetIds, in RemoteViews views);
		void updateAppWidgetProvider(in ComponentName provider, in RemoteViews views);
		void notifyAppWidgetViewDataChanged(in int[] appWidgetIds, int viewId);