Android Widget Shows Strange Image During Update

I have a strange one here... I have a Motorola i1 with Nextel running android 1.5 I have an android widget. When I start running the Service that updates this Widget I see an imag

Solution 1:

I had the exact same issue in my widget as you described and searched a lot for a solution and couldn't find any. What I ended up doing is some kind of workaround that seems to work fine in my case. What i did is the following, instead of updating the widgets directly from the onUpdate() method, I started a service that handled the update then killed itself. This solved it on the emulator and on a device that had the widget stuck during update. Here's a sample code:

The AppWidgetProvider:

@Override
publicvoidonUpdate(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds){
    context.startService(newIntent(context, WidgetService.class));
}

The Service:

@OverridepublicvoidonStart(Intent intent, int startId) {
    started(intent);
}

@OverridepublicintonStartCommand(Intent intent, int flags, int startId) {
    started(intent);
    return START_STICKY;
}


privatevoidstarted(Intent intent) {
    //update here the widgetsContextcontext= getApplicationContext();
    updateWidgets(context);
    stopSelf();//killing the service
}

privatevoidupdateWidgets(Context context) {
    AppWidgetManagerappmanager= AppWidgetManager.getInstance(context);
    ComponentNamecmpName=newComponentName(context, widgetClass);
    int[] widgetIds = appmanager.getAppWidgetIds(cmpName);
    RemoteViewsrView=newRemoteViews(context.getPackageName(), layoutId);
    for (int wid : widgetIds) {
        //all updates here
        rView.setTextViewText(tvId, desc);
        appmanager.updateAppWidget(wid, rView);
    }
}

Note sure why this workaround solves the issue, but the good thing is that it does Hope this helps

Solution 2:

I had this issue on 4.0 & 4.2 when manually sending android.appwidget.action.APPWIDGET_UPDATE broadcast to update the widget. Fixed by using a custom action, e.g.

<intent-filter><actionandroid:name="android.appwidget.action.APPWIDGET_UPDATE" /><actionandroid:name="android.appwidget.action.APPWIDGET_DISABLED" /><actionandroid:name="my.app.action.APPWIDGET_REFRESH" /></intent-filter>