setTextViewText不更新小部件

下面顯示的是我的課程的簡化版本。我在onReceive方法中沒有更新小部件TextView時遇到問題。它顯示了在setTextViewText之前的行上輸出的logcat中的正確信息。我不知道什麼是錯的，並且一直拉着我的頭髮（而且我已經禿頂）。setTextViewText不更新小部件

public class SnowWidget extends AppWidgetProvider { 

public static List<Article> mymtns = new ArrayList<Article>(); 
public static RemoteViews remoteViews; 
public static ComponentName thisWidget; 

public static String amount = ""; 
public static String mtn_name = ""; 
public static String desc = ""; 
public static String condition = ""; 
public static String[] type; 

public static int index = 0; 

@Override 
public void onUpdate(Context context, AppWidgetManager appWidgetManager, 
    int[] appWidgetIds) 
{ 

    remoteViews = new RemoteViews(context.getPackageName(), R.layout.main); 

    thisWidget = new ComponentName(context, SnowWidget.class); 

    // This one works fine 
    remoteViews.setTextViewText(R.id.snowwidget, mtn_name+ "\n"+ amount+"\"\n"+ condition); 

    /* Make the buttons work */ 

Intent next = new Intent(context, SnowWidget.class); 
next.setAction(ACTION_WIDGET_RECEIVER); 

PendingIntent nextPendingIntent = PendingIntent.getBroadcast(context, 0, next, 0); 
remoteViews.setOnClickPendingIntent(R.id.nextMtn, nextPendingIntent); 

/* END - Make the buttons work */ 

    appWidgetManager.updateAppWidget(thisWidget, remoteViews); 
} 

@Override 
public void onReceive(Context context, Intent intent) { 

    // check, if our Action was called 
    if (intent.getAction().equals(ACTION_WIDGET_RECEIVER)) { 
     if(mymtns.size() > 0) 
     { 

      // This show up correctly in logcat 
      Log.d("onReceive", "New Info => "+ mtn_name+ "\n"+ amount+"\"\n"+ condition); 
      // This never updates my widget 
      remoteViews.setTextViewText(R.id.snowwidget, mtn_name+ "\n"+ amount+"\"\n"+ condition); 

     } 
    } 

    super.onReceive(context, intent); 
}

}

來源

2010-12-13 Brombomb

更新回答 – Brombomb 2010-12-13 23:11:46

找到了答案。在致電remoteViews.setTextViewText後，您需要通過致電updateAppWidget來更新小部件。我添加的代碼如下所示。

AppWidgetManager manager = AppWidgetManager.getInstance(context); 
manager.updateAppWidget(thisWidget, remoteViews);

來源

2010-12-13 23:14:39 Brombomb

非常感謝！描述這個問題給我帶來了多少頭痛是很困難的。 – 2011-07-17 18:57:33

我有這個代碼，它仍然不工作..雖然它是以前。我不知道發生了什麼事。 – xdumaine 2012-10-03 18:24:13

你在哪裏添加這幾行代碼？我似乎無法讓我的小工具工作。 – Si8 2013-11-20 15:42:59

setTextViewText不更新小部件

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