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我创建了一个 keyguard 小部件，该小部件有一个按钮，在单击时使用随机数更新 textview。它在主屏幕上正常工作，但在锁定屏幕（android 4.2.2）上它（s按钮）仅在我将其添加到我的锁定屏幕小部件但当我关闭屏幕并返回时工作；它（s按钮）不起作用！

小部件.java

public class Widget extends AppWidgetProvider {

    @Override
    public void onUpdate(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds) {
        Timer timer = new Timer();
        timer.scheduleAtFixedRate(new MyTime(context, appWidgetManager), 1, 50000);
    }

    class MyTime extends TimerTask {
        RemoteViews remoteViews;
        AppWidgetManager appWidgetManager;
        ComponentName thisWidget;
        Context context;

    public MyTime(Context context, AppWidgetManager appWidgetManager) {
        this.appWidgetManager = appWidgetManager;
        remoteViews = new RemoteViews(context.getPackageName(), R.layout.widget);
        thisWidget = new ComponentName(context, Widget.class);
        this.context=context;
    }

    @Override
    public void run() {
        Intent configIntent = new Intent(context, WidgetReceive.class);
        configIntent.setAction("updateTextView");
        PendingIntent configPendingIntent = PendingIntent.getBroadcast(context, 0, configIntent, 0);
        remoteViews.setOnClickPendingIntent(R.id.button1, configPendingIntent);
        remoteViews.setTextViewText(R.id.widget_textview, String.valueOf(new Random().nextInt(100)));
        appWidgetManager.updateAppWidget(thisWidget, remoteViews);
    }

    }


}

小部件接收.java

public class WidgetReceive extends BroadcastReceiver{

    @Override
    public void onReceive(Context context, Intent intent) {
        AppWidgetManager appWidgetManager = AppWidgetManager.getInstance(context);
        RemoteViews remoteViews = new RemoteViews(context.getPackageName(), R.layout.widget);
        ComponentName thisWidget = new ComponentName(context, Widget.class);

        if(intent.getAction().equals("updateTextView")){
        remoteViews.setTextViewText(R.id.widget_textview, String.valueOf(new Random().nextInt(100)));
        appWidgetManager.updateAppWidget(thisWidget, remoteViews);
        }
    }

}

AndroidManifest.xml

 <receiver android:name=".Widget" android:label="@string/app_name">
        <intent-filter> <action android:name="android.appwidget.action.APPWIDGET_UPDATE"/> 
        </intent-filter>
        <meta-data android:name="android.appwidget.provider" android:resource="@xml/hello_widget_provider" />
    </receiver>   
    <receiver android:name=".WidgetReceive">
         <intent-filter>
             <action android:name="updateTextView"/> 
        </intent-filter>
    </receiver>
4

1 回答 1

0

问题可能是以下行

remoteViews.setOnClickPendingIntent(R.id.button1, configPendingIntent);

缺少WidgetReceive.onReceive(...)

使用RemoteViews对象更新应用小部件时，您必须每次都创建小部件的所有内容，包括侦听器。

于 2013-08-10T23:46:09.573 回答