Activity has leaked window at alertDialog show() method

Question

I am getting window leak error at runtime because of using an AlertDialog.

I have pointed out the error line in the code below:

Stacktrace:<

Answer 1

You can also get a WindowLeaked exception if you're not in the UI thread when attempting to show the dialog. Easy fix:

this.runOnUiThread(new Runnable() {
    @Override
    public void run() {
        // show dialog here
    }
});