Animate Key Paths

CATransform3D Key Paths : (example)transform.rotation.z

    rotation.x

    rotation.y

    rotation.z

    rotation

    scale.x

    scale.y

    scale.z

    scale

    translation.x

    translation.y

    translation.z

    translation

 CGPoint Key Paths : (example)position.x

    x

    y

 CGRect Key Paths : (example)bounds.size.width

    origin.x

    origin.y

    origin

    size.width

    size.height

    size

    opacity

    backgroundColor

    cornerRadius

    borderWidth

    contents

 Shadow Key Path:

    shadowColor

    shadowOffset

    shadowOpacity

    shadowRadius