Android代码-EasingInterpolator

EasingInterpolator [](https://android-arsenal.com/api?level=14) [](http://android-arsenal.com/details/1/3300) Twenty-eight different easing animation interpolators for Android. It does not use the standard 4 param ease signature. Instead it uses a single param which indicates the current linear ratio (0 to 1) of the tween.