title: What is the difference between an Animator and an Animation?
body: <p>It looks like both <a href="http://developer.android.com/reference/android/view/animation/Animation.html" rel="noreferrer">Animations</a> and <a href="http://developer.android.com/reference/android/animation/Animator.html" rel="noreferrer">Animators</a> allow me to animate properties (position, opacity, scale, rotation, etc) on objects, and I'm having a hard time differentiating between the use case for both. When should I use an animator versus an animation and vice versa? </p>