Android viewpager enables tab switching

This paper introduces how viewpager realizes tab switching through an example, and the effect diagram is as follows:

Step 1: the V4 package compatible with the lower version is used for layout. There is no input prompt in eclipse, so you need to enter it manually. The file name is "activity_main. XML"

Step 2: the contents in the tab are obtained from the layout file, so I create two new test layouts "layout1. XML" and "layout2. XML", with arbitrary contents.

Step 3: the layout has been completed and the key functions are implemented in the mainactivity.java class.

First, declare the viewpager and pagertabstrip objects, find the resource ID through findviewbyid, and declare ArrayList < View > to store the test layout file. The core code is as follows:

The above is the whole content of this article. There are still some problems that will continue to be studied in later articles. I hope you will continue to pay attention to them.