Learn Android viewpager together

This article briefly describes the common usage of viewpager in Android development with a simple small example, which is only for learning and sharing.

Viewpager is a layout management control that supports users to slide left and right. Data and pages can be transmitted through an implemented (adapter) pageadapter. Viewpager is more often used with fragment to facilitate the management of the life cycle of each page.

The picture rotation is as follows:

XML layout code

Java code (picture rotation)

Java code (fragment sliding)

The fragments supported by viewpager are also fragments in android.support.v4.app package, and the activities to be called also need to inherit android.support.v4.app.fragmentactivity. The picture indicator in viewpager is implemented with the picture in LinearLayout.