Dialog throwing "Unable to add window — token null is not for an application” with getApplication() as context

Question

My Activity is trying to create an AlertDialog which requires a Context as a parameter. This works as expected if I use:

AlertDialog.Builder builder = new Al         


        

Answer 1

I think it may happen as well if you are trying to show a dialog from a thread which is not the main UI thread.

Use runOnUiThread() in that case.