What is the difference between ViewPropertyAnimator's translateYBy() vs yBy() methods?

Question

ViewPropertyAnimators (http://developer.android.com/reference/android/view/ViewPropertyAnimator.html) have two types of methods to move Views around:

translateX() vs x(

Answer 1

translationX and translationY: These properties control where the View is located as a delta from its left and top coordinates which are set by its layout container.

x and y: These are simple utility properties to describe the final location of the View in its container, as a sum of the left and top values and translationX and translationY values.

Animate views docs