Question

My app uses PreferenceManager.getDefaultSharedPreferences(getBaseContext())

and then sets a couple of preference values. While running tests I want to clear these values and start off from a known state. Is there any way default shared preferences can be set up or initialized in the setUp function?

Answer 1

The code you need is as following:

Context context = instrumentation.getTargetContext();
PreferenceManager.getDefaultSharedPreferences(context).edit().clear().commit();

If your application uses any different shared preferences you may need to clear them too in the following way:

context.getSharedPreferences("XXX", Context.MODE_PRIVATE).edit().clear().commit();