Question

我正在研究android appwidget，有定期更新appwidget的问题。将更新周期更改为超过30分钟。仍未更新小部件

public class MyWidgetProvider extends AppWidgetProvider {

final static String ITEM_CLICK_ACTION = "ItemClick";
public static final String TOAST_ACTION = "TOAST_ACTION";

BroadcastReceiver receiver;

public void onUpdate(Context context, AppWidgetManager appWidgetManager,

int[] appWidgetIds) {
    final int N = appWidgetIds.length;
    for (int i = 0; i < N; i++) {
        int appWidgetId = appWidgetIds[i];

        Log.e("called", "omupdate");

        RemoteViews views = new RemoteViews(context.getPackageName(),
                R.layout.widget_lay);

        views.setTextViewText(R.id.textView1,
                "Floating Text will be displayed here .. Daily Thoughts");

        Intent intent = new Intent(context, RemoteServiceEmin.class);
        intent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, appWidgetId);
        // intent.setData(Uri.parse(intent.toUri(Intent.URI_INTENT_SCHEME)));
        views.setRemoteAdapter(R.id.gridview, intent);

        // inflating list remote view

        Intent intentlist = new Intent(context, ListInflater.class);
        intentlist.putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID,
                appWidgetId);
        // intent.setData(Uri.parse(intent.toUri(Intent.URI_INTENT_SCHEME)));
        views.setRemoteAdapter(R.id.listview, intentlist);

        // setting onclick on gridview
        Intent itemClickIntent = new Intent(context, MyWidgetProvider.class);
        itemClickIntent.setAction(ITEM_CLICK_ACTION);
        itemClickIntent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID,
                appWidgetIds[i]);
        PendingIntent itemClickPendingIntent = PendingIntent.getBroadcast(
                context, 0, itemClickIntent,
                PendingIntent.FLAG_UPDATE_CURRENT);
        views.setPendingIntentTemplate(R.id.gridview,
                itemClickPendingIntent);

        Intent toastIntent = new Intent(context, MyWidgetProvider.class);
        toastIntent.setAction(MyWidgetProvider.TOAST_ACTION);
        toastIntent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID,
                appWidgetIds[i]);
        intent.setData(Uri.parse(intent.toUri(Intent.URI_INTENT_SCHEME)));
        PendingIntent toastPendingIntent = PendingIntent.getBroadcast(
                context, 0, toastIntent, PendingIntent.FLAG_UPDATE_CURRENT);
        views.setPendingIntentTemplate(R.id.ll, toastPendingIntent);

        // appWidgetManager.updateAppWidget(appWidgetIds[i], v);
        // appWidgetManager.updateAppWidget(appWidgetIds[i], views);
        appWidgetManager.updateAppWidget(appWidgetId, views);

    }

    super.onUpdate(context, appWidgetManager, appWidgetIds);

}

@Override
public void onReceive(Context context, Intent intent) {
    // TODO Auto-generated method stub

    if (intent.getAction().equals(ITEM_CLICK_ACTION)) {
        Bundle extras = new Bundle();
        extras.putString("text", intent.getExtras().getString("text"));
        Intent actIntent = new Intent();
        actIntent.setClass(context, ConfigurationActivity.class);
        actIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
        actIntent.putExtras(extras);
        context.startActivity(actIntent);
    } else if (intent.getAction().equals(TOAST_ACTION)) {
        Toast.makeText(context, "dfjdsfl", Toast.LENGTH_SHORT).show();

    } else {
        super.onReceive(context, intent);
    }

}

}

这是我的appwidget类，我无法跟踪为什么它不会更新 android:updatePeriodMillis="50000"

提前感谢..

Answer 1

小部件更新的最短实际时间为30分钟，以避免编写较差的程序小部件来干电池。对于小部件的频繁更新，使用AlarmManager来克服这个问题。

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

     long interval = 50000;
    Intent in = new Intent(context, Widgetclass.class);
in.setAction("Widgetupdate");
    PendingIntent pi = PendingIntent.getService(context, 0, in, 0);

    AlarmManager alarm = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE);


        alarm.setRepeating(AlarmManager.ELAPSED_REALTIME, SystemClock.elapsedRealtime(),interval, pi);
//add remaining code here
}
public void onReceive(Context context, Intent intent) {
if (intent.getAction().equals("widgetupdate")) {
watchWidget = new ComponentName(context,
            Widgetclass.class);
 RemoteViews views = new RemoteViews(context.getPackageName(),
            R.layout.widget_lay);
(AppWidgetManager.getInstance(context)).updateAppWidget(
                    watchWidget, views);
}
declare this  receiver action in menifest file

appwidget不会更新自己

1 个答案: