public void setZoom(TouchImageView img) {
        PointF center = img.getScrollPosition();
        setZoom(img.getCurrentZoom(), center.x, center.y, img.getScaleType());
    }
Set zoom parameters equal to another TouchImageView. Including scale, position,
and ScaleType.
app/src/main/java/home/smart/fly/animations/customview/gallery/TouchImageView.java