kohoh

When the SlidingLayer is Sliding,it will call `invalidate` frequently。So set this SlidingLayer's DrawingCacheEnabled true is usless and affect performance.But set the DrawingCacheEnabled of SlidingLayer's child view true will make sliding...

In API19,if you set `hardware acceleration` in `false`.The SlidingLayer will throw a RuntimeException. The reasone is the `DrawingCacheEnable` has been set in `false` too early. In my commit,I set `DrawingCacheEnable`...

fix the issue cause by build file.sample project is application ,not library. fix the issue cause by override style file.if override style file directly,it will cause some expection.like follows: ```...