Question

I am developing a simple widget and I would like to change the background at runtime from a png file (or similar). Is this possible to do and if so, how? Can someone provide some simple example?

Thanks

Answer 1

Use something like:

views.setImageViewBitmap(R.id.widgetBackground, ((BitmapDrawable)context.getResources().getDrawable(R.drawable.YOUR_BACKGROUND)).getBitmap());

File YOUR_BACKGROUND is a png.

The views Object is an instance of RemoteViews.
You can get the instance by using:

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

And don’t forget to update the Widget after these changes.

AppWidgetManager mgr = AppWidgetManager.getInstance(context);
ComponentName me = new ComponentName(context, Widget.class);
mgr.updateAppWidget(me, views);