Undersanding animation function in android

问题

I want to use the following code snippet, please help me in understanding the given functions or suggest me online documentation that can I use.

view.animate().setDuration(2000).alpha(0)
        .withEndAction(new Runnable() {
          @Override
          public void run() {
            list.remove(item);
            adapter.notifyDataSetChanged();
            view.setAlpha(1);
          }
      });

what does function setDuration(2000) , .alpha(0) ,.alpha(1) and .withEndAction()

回答1:

• setDuration(2000) sets the duration of the animation to 2000 milliseconds or 2 seconds
• alpha(0) the view's alpha property will be animated to this value
• withEndAction() means at the end of the animation the following action will take place

Have a look here (http://developer.android.com/reference/android/view/ViewPropertyAnimator.html)

回答2:

check this post, you can understand better

http://developer.android.com/guide/topics/graphics/prop-animation.html

来源：https://stackoverflow.com/questions/17021991/undersanding-animation-function-in-android