Android自定义全屏VideoView，仿主流视频客户端，左右滑屏快退快进；上下滑屏，手指在左半屏时，调整亮度；上下滑屏，手指在右半屏时，调整音量；横竖屏无缝自动切换。-Android custom screen VideoView, imitating the mainstream video client, rewind and fast forward on the left and right sliding screen slide panel, adjust the brigh