verifyImg.getViewTreeObserver().addOnGlobalLayoutListener(new ViewTreeObserver.OnGlobalLayoutListener() {
            @Override
            public void onGlobalLayout() {
                // Ensure you call it only once :
                verifyImg.getViewTreeObserver().removeGlobalOnLayoutListener(this);
                dlgVerifyImgWidth=verifyImg.getWidth();
                dlgVerifyImgHeight=verifyImg.getHeight();
                loadImg();
            }
        });