试试这个：
public class WidgetProvider extends AppWidgetProvider { public static final String REFRESH_ACTION = "com.packagename.REFRESH_ACTION";@Override public void onReceive(Context context, Intent intent) { super.onReceive(context, intent); if (intent.getAction().equals(WidgetProvider.REFRESH_ACTION)) { Bundle extras = intent.getExtras(); if (extras != null) { int[] appWidgetIds = extras.getIntArray(AppWidgetManager.EXTRA_APPWIDGET_IDS); if (appWidgetIds != null && appWidgetIds.length > 0) { Toast.makeText(context, "REFRESH", Toast.LENGTH_SHORT).show(); this.onUpdate(context, AppWidgetManager.getInstance(context), appWidgetIds); } } }}@Overridepublic void onUpdate(final Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds) { final int N = appWidgetIds.length; for (int i = 0; i < N; ++i) { RemoteViews rv = new RemoteViews(context.getPackageName(), R.layout.widget_layout); Intent intentServiceCall = new Intent(context, WidgetService.class); intentServiceCall.putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, appWidgetIds[i]); //Refresh Intent refreshIntent = new Intent(context, WidgetProvider.class); refreshIntent.setAction(WidgetProvider.REFRESH_ACTION); refreshIntent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_IDS, appWidgetIds); intentServiceCall.setData(Uri.parse(intentServiceCall.toUri(Intent.URI_INTENT_SCHEME))); PendingIntent pendingIntent = PendingIntent.getBroadcast(context, 0, refreshIntent, PendingIntent.FLAG_UPDATE_CURRENT); rv.setonClickPendingIntent(R.id.ivRefreshWidget, pendingIntent); appWidgetManager.updateAppWidget(appWidgetIds[i], rv); } super.onUpdate(context, appWidgetManager, appWidgetIds);}
