CODEWITHSUNDEEP
androidappwidgetprovider
user634545
user634545

Reputation: 9419

AppWidgetProvider, how to determine the AppWidgetProvider for a specific widget

I need a way to determine which AppWidgetProvider is active for the current widget in the configure Activity. My current solution results in a NullException on some devices, the appWidgetInfo.provider is null somehow.

Is there a better way to determine which AppWidgetProvider is corresponding to a specific appWidgetId. 

AppWidgetManager appWidgetManager = AppWidgetManager.getInstance(context);
AppWidgetProviderInfo appWidgetInfo = appWidgetManager.getAppWidgetInfo(widgetId);

Intent intent = new Intent();
intent.putExtra(
    AppWidgetManager.EXTRA_APPWIDGET_ID, 
             widgetId);
intent.setAction(RemoteWidgetViewsFactory.KEY_WIDGET_SETTING_REFRESH);

String appWidgetProviderName = appWidgetInfo.provider.getClassName();
if(appWidgetProviderName.equals(WidgetProvider.class.getName())) {
    intent.setClass(context, WidgetProvider.class);
}
else if(appWidgetProviderName.equals(WidgetProviderLarge.class.getName())) {
    intent.setClass(context, WidgetProviderLarge.class);
}

sendBroadcast(intent);

Upvotes: 0

Views: 851

Answers (1)

user1013443
user1013443

Reputation: 818

I actually had the same problem cause I also needed to determine the actual AppWidgetProvider class. Your question did help me and I probably can help you. Just implement a method like this and you dont have to write code for each AppProvider class:

    private static Class<?> getAppWidgetProviderClass(Context context, int appWidgetId){
    AppWidgetManager appWidgetManager = AppWidgetManager.getInstance(context);
    AppWidgetProviderInfo appWidgetInfo = appWidgetManager.getAppWidgetInfo(appWidgetId);
    String appWidgetProviderName = appWidgetInfo.provider.getClassName();
    Class<?> myProvider = null;
    try {
        myProvider = Class.forName(appWidgetProviderName);
    } catch (ClassNotFoundException cnf){
        Log.e("myProviderClass","Class:" + appWidgetProviderName + " not found!");
    }
    return myProvider;
}

after use it for the class definition Intent:

Intent myIntent = new Intent(context, getAppWidgetProviderClass(context, appWidgetId));

Hope it helps you!

Upvotes: 1

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