Alex Rivera | Logout

Android widget buttons stop working

Asked 2011-07-13T20:09:10.490
13

I have an Android application with a widget, that has buttons. This code works.

The buttons on the widget stop working when something happens, such as changing the language of the phone. I use shared preferences, so if the user reinstalls the app (without uninstalling), the buttons are working again and the settings remain the set ones.

  • I have noticed the Intents in my AppWidgetProvider class (code beneath this analysis) are not fired appropriately.
  • I added a Toast message to the Call1 class instantiated from AppWidgetProvider, but it doesn't display.
  • My UpdateService.java is just getting the set preferences and customizing the widget's appearance, so I don't think it could possibly be related to my issue.
  • My Main.java file merely consists of spinners and saves shared preferences, which means I select "Computer" in a spinner, so that the "Computer" text appears on the widget. It also does not disappear when I change the language of the phone, and neither do images. Therefore, I believe UpdateService.java must be ok.

Here is the AppWidgetProvider class:

public class HelloWidget extends AppWidgetProvider {

    public static String ACTION_WIDGET_CONFIGURE = "ConfigureWidget";
    public static String ACTION_WIDGET_CONFIGURE2 = "ConfigureWidget";
    public static String ACTION_WIDGET_RECEIVER = "ActionReceiverWidget";
    public static String ACTION_WIDGET_RECEIVER2 = "ActionReceiverWidget";
    private static final int REQUEST_CODE_FOUR = 40;
    private static final int REQUEST_CODE_FIVE = 50;
    private static final int REQUEST_CODE_SIX = 60;
    private static final int REQUEST_CODE_SEVEN = 70;
    private static final int REQUEST_CODE_EIGHT = 80;

    @Override
    public void onUpdate(Context context, AppWidgetManager appWidgetManager, in
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1 Answer

6

My UpdateService.java is just getting the set preferences and customizing the widget's appearance, so I don't think it could possibly be related to my issue.

It is possible it is related, in as much that you could use it to "refresh" the pending intent. I have a similar issue in my appwidget that an image button stops responding to clicks after some random run time (hours).

I found this thread: AppWidget Button onClick stops working

And this quote:

The pending intent is "burned" after each use. You need to set it again. Or wait for the widget to get refreshed, then it happens, too, but that's probably not the desired way.

Given that the widget update time normally is set at many hours or days (mine is 86400000 milli seconds) in order to prevent the phone going out of suspend every so many minutes your widget will not often run onUpdate. It is possible that setting the pending intent ALSO in the update service will prevent the problem you describe.Each time the update service runs the pending intent is re-created.

I have today added this possible fix to my appwidget and I have to wait and see if the fix really works, but so far so good.

I added the following code in the update service' loop where it refreshes each widget:

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

  /* other stuff to do */

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

  /* here you "refresh" the pending intent for the button */
  Intent clickintent=new Intent("net.example.appwidget.ACTION_WIDGET_CLICK");
  PendingIntent pendingIntentClick=PendingIntent.getBroadcast(context, 0, clickintent, 0);
  views.setOnClickPendingIntent(R.id.example_appwidget_button, pendingIntentClick);
  appWidgetManage
answered 2011-10-18T22:46:45.143

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