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

Here is how I resolved same error for my application:
Adding the following line after creating the dialog:

dialog.getWindow().setType(WindowManager.LayoutParams.TYPE_SYSTEM_DIALOG);  

You will not need to acquire a context. This is particularly useful if you are popping up another dialog over current popped up dialog. Or when it's not convenient to get a context.

Hope this can help you with your app development.

David