Question

我有一个具有刷新按钮和textview的小部件。刷新更新内容，当用户点击textview时，它会启动一项新活动。

问题是它可以正常工作几个小时然后点击并刷新按钮不会做任何事情。在logcat中没有捕获任何内容。此外，如果用户删除小部件并放置一个新的小部件，它会开始工作几个小时，然后是相同的故事:( ...我做错了什么！

广播接收器。

的onUpdate

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

        long interval = getrefresInterval();

        final Intent intent = new Intent(context, UpdateService.class);
        final PendingIntent pending = PendingIntent.getService(context, 0, intent, 0);
        final AlarmManager alarm = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE);
        alarm.cancel(pending);

        alarm.setRepeating(AlarmManager.ELAPSED_REALTIME, SystemClock.elapsedRealtime(),interval, pending);


        // Build the intent to call the service
           RemoteViews remoteViews = new RemoteViews(context.getPackageName(),R.layout.widget);



        // To react to a click we have to use a pending intent as the
            // onClickListener is excecuted by the homescreen application
            Intent ClickIntent = new Intent(context.getApplicationContext(),widgetHadith.class);
            Intent UpdateIntent = new Intent(context.getApplicationContext(),UpdateService.class);

            PendingIntent pendingIntent = PendingIntent.getActivity(context.getApplicationContext(), 0, ClickIntent,
                    PendingIntent.FLAG_UPDATE_CURRENT);


            PendingIntent pendingIntentUpdate = PendingIntent.getService(context.getApplicationContext(), 0, UpdateIntent,
                    PendingIntent.FLAG_UPDATE_CURRENT); //use this to update text on widget. if use this put UpdateService.class to intent

            remoteViews.setOnClickPendingIntent(R.id.widget_textview, pendingIntent);
            remoteViews.setOnClickPendingIntent(R.id.widget_refresh, pendingIntentUpdate);

            // Finally update all widgets with the information about the click listener
            appWidgetManager.updateAppWidget(appWidgetIds, remoteViews);


            // Update the widgets via the service
            context.startService(intent);

    }

的onReceive

public void onReceive(Context context, Intent intent) {

    // v1.5 fix that doesn't call onDelete Action
    final String action = intent.getAction();
    if (AppWidgetManager.ACTION_APPWIDGET_DELETED.equals(action)) {
        final int appWidgetId = intent.getExtras().getInt(
                AppWidgetManager.EXTRA_APPWIDGET_ID,
                AppWidgetManager.INVALID_APPWIDGET_ID);
        if (appWidgetId != AppWidgetManager.INVALID_APPWIDGET_ID) {
            this.onDeleted(context, new int[] { appWidgetId });
        }
    } else {
        super.onReceive(context, intent);
    }
}

onDelete

public void onDeleted(Context context, int[] appWidgetIds) {
    //  Toast.makeText(context, "onDelete", Toast.LENGTH_SHORT).show();
        super.onDeleted(context, appWidgetIds);
    }

我正在更新的服务启动

    @Override
    public void onStart(Intent intent, int startId) {
        RemoteViews updateViews = new RemoteViews(this.getPackageName(),R.layout.widget);


        processDatabase();
        Spanned text = LoadHadith();
        String hadith = text.toString();
        Log.d("BR", "service---> ");
        // set the text of component TextView with id 'message'
        updateViews.setTextViewText(R.id.widget_textview, text);


        //Push update for this widget to the home screen
        ComponentName thisWidget = new ComponentName(this, HelloWidget.class);
        AppWidgetManager manager = AppWidgetManager.getInstance(this);
        manager.updateAppWidget(thisWidget, updateViews);
 }

Answer 1

问题是您无法对窗口小部件进行部分更新，您必须设置所有窗口小部件功能，例如每次推送新的远程视图时的PendingIntent集。（Partiall更新仅适用于API14及更高版本......）。

你的小部件丢失pendingIntents的原因是android系统保存了remoteView，并用它重建你的小部件，以防它重置小部件（memmory短缺，TaskManager / taskKiller正在使用等等），因此，您必须在updateService中的remoteView中设置窗口小部件的所有更新代码。否则，它只是不会再次设置pendingIntents。

因此，只需将pendingIntents的代码设置添加到服务中，您的问题就会得到解决=]

几小时后，Android Widget点击不会执行任何操作

1 个答案: