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/*
* Copyright (C) 2009 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.android.launcher3;
import android.appwidget.AppWidgetHost;
import android.appwidget.AppWidgetHostView;
import android.appwidget.AppWidgetProviderInfo;
import android.content.Context;
import android.os.TransactionTooLargeException;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import java.util.ArrayList;
/**
* Specific {@link AppWidgetHost} that creates our {@link LauncherAppWidgetHostView}
* which correctly captures all long-press events. This ensures that users can
* always pick up and move widgets.
*/
public class LauncherAppWidgetHost extends AppWidgetHost {
private final ArrayList<Runnable> mProviderChangeListeners = new ArrayList<Runnable>();
private int mQsbWidgetId = -1;
private Launcher mLauncher;
public LauncherAppWidgetHost(Launcher launcher, int hostId) {
super(launcher, hostId);
mLauncher = launcher;
}
public void setQsbWidgetId(int widgetId) {
mQsbWidgetId = widgetId;
}
@Override
protected AppWidgetHostView onCreateView(Context context, int appWidgetId,
AppWidgetProviderInfo appWidget) {
if (appWidgetId == mQsbWidgetId) {
return new LauncherAppWidgetHostView(context) {
@Override
protected View getErrorView() {
// For the QSB, show an empty view instead of an error view.
return new View(getContext());
}
};
}
return new LauncherAppWidgetHostView(context);
}
@Override
public void startListening() {
try {
super.startListening();
} catch (Exception e) {
/*
if (e.getCause() instanceof TransactionTooLargeException) {
// We're willing to let this slide. The exception is being caused by the list of
// RemoteViews which is being passed back. The startListening relationship will
// have been established by this point, and we will end up populating the
// widgets upon bind anyway. See issue 14255011 for more context.
} else {
throw new RuntimeException(e);
}*/
// If we can't bind to the app widget service, move on. We will retry at the next
// onStart().
Log.e("LauncherAppWidgetHost", "Error binding to IAppWidgetService", e);
}
}
@Override
public void stopListening() {
super.stopListening();
clearViews();
}
public void addProviderChangeListener(Runnable callback) {
mProviderChangeListeners.add(callback);
}
public void removeProviderChangeListener(Runnable callback) {
mProviderChangeListeners.remove(callback);
}
protected void onProvidersChanged() {
if (!mProviderChangeListeners.isEmpty()) {
for (Runnable callback : new ArrayList<>(mProviderChangeListeners)) {
callback.run();
}
}
}
public AppWidgetHostView createView(Context context, int appWidgetId,
LauncherAppWidgetProviderInfo appWidget) {
if (appWidget.isCustomWidget) {
LauncherAppWidgetHostView lahv = new LauncherAppWidgetHostView(context);
LayoutInflater inflater = (LayoutInflater)
context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
inflater.inflate(appWidget.initialLayout, lahv);
lahv.setAppWidget(0, appWidget);
lahv.updateLastInflationOrientation();
return lahv;
} else {
return super.createView(context, appWidgetId, appWidget);
}
}
/**
* Called when the AppWidget provider for a AppWidget has been upgraded to a new apk.
*/
@Override
protected void onProviderChanged(int appWidgetId, AppWidgetProviderInfo appWidget) {
LauncherAppWidgetProviderInfo info = LauncherAppWidgetProviderInfo.fromProviderInfo(
mLauncher, appWidget);
super.onProviderChanged(appWidgetId, info);
}
}
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