Applying an outline to an elevated View.

ivAdd.addOnLayoutChangeListener(new View.OnLayoutChangeListener() {
                @Override
                public void onLayoutChange(View view, int i, int i2, int i3, int i4, int i5, int i6, int i7, int i8) {
                    if (Build.VERSION.SDK_INT > Build.VERSION_CODES.KITKAT) {
                        ivAdd.setClipToOutline(true);
                        Outline outline = new Outline();
                        outline.setOval(0,0,ivAdd.getWidth(),ivAdd.getHeight());
                        ivAdd.setOutline(outline);
                    }
                    ivAdd.removeOnLayoutChangeListener(this);
                }
            });