import com.google.samples.apps.iosched.ui.TaskStackBuilderProxyActivity; //导入依赖的package包/类
@Override
public void onUpdate(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds) {
    LOGD(TAG, "updating app widget");
    final boolean isAuthenticated = AccountUtils.hasActiveAccount(context);
    for (int appWidgetId : appWidgetIds) {
        // Specify the service to provide data for the collection widget.  Note that we need to
        // embed the appWidgetId via the data otherwise it will be ignored.
        final Intent intent = new Intent(context, ScheduleWidgetRemoteViewsService.class)
                .putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, appWidgetId);
        intent.setData(Uri.parse(intent.toUri(Intent.URI_INTENT_SCHEME)));
        final RemoteViews rv = new RemoteViews(context.getPackageName(), R.layout.widget);
        rv.setRemoteAdapter(R.id.widget_schedule_list, intent);

        // Set the empty view to be displayed if the collection is empty.  It must be a sibling
        // view of the collection view.
        rv.setEmptyView(R.id.widget_schedule_list, android.R.id.empty);
        LOGD(TAG, "setting widget empty view");
        rv.setTextViewText(android.R.id.empty, context.getResources().getString(isAuthenticated
                ? R.string.empty_widget_text
                : R.string.empty_widget_text_signed_out));

        final PendingIntent refreshPendingIntent = PendingIntent.getBroadcast(context, 0,
                getRefreshBroadcastIntent(context, true), PendingIntent.FLAG_UPDATE_CURRENT);
        rv.setOnClickPendingIntent(R.id.widget_refresh_button, refreshPendingIntent);

        final Intent onClickIntent = TaskStackBuilderProxyActivity.getTemplate(context);
        final PendingIntent onClickPendingIntent = PendingIntent.getActivity(context, 0,
                onClickIntent, PendingIntent.FLAG_UPDATE_CURRENT);
        rv.setPendingIntentTemplate(R.id.widget_schedule_list, onClickPendingIntent);

        final Intent openAppIntent = new Intent(context, MyScheduleActivity.class)
                .addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
        final PendingIntent openAppPendingIntent = PendingIntent.getActivity(context, 0,
                openAppIntent, PendingIntent.FLAG_UPDATE_CURRENT);
        rv.setOnClickPendingIntent(R.id.widget_logo, openAppPendingIntent);

        appWidgetManager.updateAppWidget(appWidgetId, rv);
    }
    super.onUpdate(context, appWidgetManager, appWidgetIds);
}
 

import com.google.samples.apps.iosched.ui.TaskStackBuilderProxyActivity; //导入依赖的package包/类
@Override
public void onUpdate(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds) {
    LOGD(TAG, "updating app widget");
    for (int appWidgetId : appWidgetIds) {
        // Specify the service to provide data for the collection widget.  Note that we need to
        // embed the appWidgetId via the data otherwise it will be ignored.
        final Intent intent = new Intent(context, ScheduleWidgetRemoteViewsService.class)
                .putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, appWidgetId);
        intent.setData(Uri.parse(intent.toUri(Intent.URI_INTENT_SCHEME)));
        final RemoteViews rv = new RemoteViews(context.getPackageName(), R.layout.widget);
        rv.setRemoteAdapter(R.id.widget_schedule_list, intent);

        // Set the empty view to be displayed if the collection is empty.  It must be a sibling
        // view of the collection view.
        rv.setEmptyView(R.id.widget_schedule_list, android.R.id.empty);
        LOGD(TAG, "setting widget empty view");
        rv.setTextViewText(android.R.id.empty, context.getResources().getString(R.string.empty_widget_text));

        final PendingIntent refreshPendingIntent = PendingIntent.getBroadcast(context, 0,
                getRefreshBroadcastIntent(context, true), PendingIntent.FLAG_UPDATE_CURRENT);
        rv.setOnClickPendingIntent(R.id.widget_refresh_button, refreshPendingIntent);

        final Intent onClickIntent = TaskStackBuilderProxyActivity.getTemplate(context);
        final PendingIntent onClickPendingIntent = PendingIntent.getActivity(context, 0,
                onClickIntent, PendingIntent.FLAG_UPDATE_CURRENT);
        rv.setPendingIntentTemplate(R.id.widget_schedule_list, onClickPendingIntent);

        final Intent openAppIntent = new Intent(context, ScheduleActivity.class)
                .addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
        final PendingIntent openAppPendingIntent = PendingIntent.getActivity(context, 0,
                openAppIntent, PendingIntent.FLAG_UPDATE_CURRENT);
        rv.setOnClickPendingIntent(R.id.widget_logo, openAppPendingIntent);

        appWidgetManager.updateAppWidget(appWidgetId, rv);
    }
    super.onUpdate(context, appWidgetManager, appWidgetIds);
}