实现淡入淡出的效果，主要实现了在侧滑的过程中，运用了Viewpager，实现滑动的效果，同时，有淡入淡出的滑动效果。类似掌阅。-Fade to achieve results, the main achievement in the process of sliding, the use of Viewpager, achieve sliding effect, while sliding effect fade. Similar palm reading.