PopupWindow $BadTokenException: Unable to add window — token null is not valid

Question

I have the following error when showing a PopupWindow. The errors are triggered by the line:

checkInPopup.showAtLocation((ViewGroup) mapView.getParent(), Gra         


        

Answer 1

Try to show the pop like below

findViewById(R.id.main_layout).post(new Runnable() {
        public void run() {
            mPopupWindow.showAtLocation(findViewById(R.id.main_layout), Gravity.CENTER, 0, 0);
            Button close = (Button) customView.findViewById(R.id.btn_ok);
            close.setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View v) {
                    mPopupWindow.dismiss();
                    doOtherStuff();
                }
            });
        }
    });