I have a web radio player app that haves a FloatingActionButton to play and stop the reproduction. When the player is not playing, the icon is a play, when it is playing, the icon is a stop. Some days ago I saw an animation that could be very good to my app, where a play icon morphs in a stop icon, something like this. I've been searching for a tutorial or lib to help me with this but unsuccessfully. Im using this FAB. Any help is welcome. Thaks in advance.
Hope this library will help you. It already contains such animation and also provides backward compatibility on devices with SDK level >= 14