Need to get position of an UIImage animating from top to bottom of screen

I am using animation for an UIImageView. So,that an image is animating fr开发者_开发问答om top to bottom of iPhone screen. I gave start and end positions for that imageView for animation. While it is moving, I want to know the current position of that image on the View.

Can any ne help in this regard. Thank You

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You can get position...

-(SLfloat) getYPos
{
    SLfloat pos = 0;
    CALayer *layer = yourAnimationView.layer.presentationLayer;
    if(layer)
        pos = layer.frame.origin.y;

    return pos;
}