L-release-like Touch Ripple animation on pre-L

Question

I love the new Touch Ripple animation that was introduced in the new Android L-release as part of the new UI philosophy Material Design.

You can find a video of it in th

Answer 1

My answer is kind of late but I wanted to share my solution too. I created another class called TouchEffectAnimator with the idea of Niek Haarman. Thanks to Mr. Haarman by the way.

You can see the class and an example usage of it on this gist. Also I'll explain it simply.

The class contains all the necessary methods and variables in it and creates the same animation that Android L (preview) currently has. For using this class:

• Create a custom view. (in gist example I created a LinearLayout)
• Initialise the TouchEffectAnimator object.
• Define some attributes of it like color, effect type, duration and clip corners size.
• Call the onTouchEvent method of TouchEffectAnimator inside the view's onTouchEvent.
• Call the onDraw method of TouchEffectAnimator inside the view's onDraw.

and that's it. But there are two things that should be done for this class to work properly.

• There should be some OnClickListener on the view to get the UP touch event.
• There should be a custom or transparent background set to the view. If nothing is set as background the animation is not shown.

I hope it works for you too.

P.S. I created this class for my library project Android FlatUI Kit. You can see the usage of this class in FlatButton class as well.