(In Android learning, action interaction is an important part of the software. The Scroller is a class that provides drag effects. On the Internet, for example, some Launchers can use this class to achieve sliding screen. This is the practice after learning the Scroller class. The effect is great. You can go to the blog to check how it is implemented and the renderings. Corresponding blog address: httpblog.csdnvipzjyno1articledetails24664161 This material includes the following attachments:)