ListWidgetProvider.java 文件源码

@Override
public void onEnabled(Context context) {
    IntentFilter filter = new IntentFilter();
    filter.addAction(AppIntent.ACTION_UPDATE_LIST_WIDGET);
    filter.addAction(AppIntent.ACTION_UPDATE_LAYOUT_LIST_WIDGET);

    LocalBroadcastManager.getInstance(context).registerReceiver(this, filter);

    scheduleUpdate(context);
}