(Recently, I have been studying about paging, and finally found that it is still easier to use the official Google model. Today, I took the opportunity to write one or two models to share with you. The uploaded view page is not easy to understand because I don't understand it, others scold it, and I don't write anything. In fact, it is not anything. I usually just upload it to the model, and the project will certainly not be uploaded so easily, After the problems encountered in the project are solved, they are uploaded and shared with everyone. You can slide left and right.)