Android主屏幕小部件未更新

我創建了一個簡單的主屏幕小部件，顯示從數據庫生成的名稱。我添加了一個按鈕來刷新TextView中的名稱，但問題是小部件沒有更新。Android主屏幕小部件未更新

這是我的Widget類：

public class QuotesWidgets extends AppWidgetProvider { 
    ComponentName watchWidget; 
    RemoteViews remoteViews; 
    private static final String SYNC_CLICKED = "automaticWidgetSyncButtonClick"; 
    void updateAppWidget(Context context, AppWidgetManager appWidgetManager, 
         int appWidgetId) { 

     Realm mRealm; 

     mRealm=Realm.getDefaultInstance(); 
     Random random = new Random(); 
     RealmResults<names> randomName = mRealm.where(Names.class).findAll(); 
     Names name = randomName.get(random.nextInt(randomName.size())); 
     String name1 = quote.getName(); 
     remoteViews = new RemoteViews(context.getPackageName(), R.layout.my_widget); 
     watchWidget = new ComponentName(context, MyWidget.class); 
     remoteViews.setTextViewText(R.id.textview, name); 

     remoteViews.setOnClickPendingIntent(R.id.refresh, getPendingSelfIntent(context, SYNC_CLICKED)); 
     appWidgetManager.updateAppWidget(watchWidget, remoteViews); 
    } 

    @Override 
    public void onUpdate(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds) { 
     // There may be multiple widgets active, so update all of them 
     for (int appWidgetId : appWidgetIds) { 
      updateAppWidget(context, appWidgetManager, appWidgetId); 
     } 
    } 

    @Override 
    public void onReceive(Context context, Intent intent) { 
     super.onReceive(context, intent); 
     if (SYNC_CLICKED.equals(intent.getAction())) { 
      Realm mRealm; 
      mRealm=Realm.getDefaultInstance(); 

      AppWidgetManager appWidgetManager = AppWidgetManager.getInstance(context); 
      remoteViews = new RemoteViews(context.getPackageName(), R.layout.quotes_widgets); 
      watchWidget = new ComponentName(context, MyWidgets.class); 
      appWidgetManager.updateAppWidget(watchWidget, remoteViews); 
      Random random = new Random(); 
      RealmResults<names> randomName = mRealm.where(Names.class).findAll(); 
      Names name = randomName.get(random.nextInt(randomName.size())); 
      String name1 = quote.getName(); 

      Toast.makeText(context,name1, Toast.LENGTH_SHORT).show(); 
      remoteViews.setTextViewText(R.id.textview, name1); 


     } 
    } 
    protected PendingIntent getPendingSelfIntent(Context context, String action) { 
     Intent intent = new Intent(context, getClass()); 
     intent.setAction(action); 
     return PendingIntent.getBroadcast(context, 0, intent, 0); 
    } 
}

我在這個例子中使用敬酒消息，當我點擊按鈕，用不同的名字出現在吐司消息每次所以一切都是除了在改變運作良好小部件中的TextView。問題是什麼？

來源

2016-10-10 Ahmed Ezzat

首先設置新的文本：

remoteViews.setTextViewText(R.id.textview, name1);

然後讓AppWidgetManager更新的小窗口：

appWidgetManager.updateAppWidget(watchWidget, remoteViews);

來源

2016-10-11 16:06:09 0X0nosugar

Android主屏幕小部件未更新

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