(11. For the course of realizing timer function 3, please download all the contents of this video tutorial in the special topic. You can update a lot of other courses such as mass software development, function optimization, and network development. You can click My User Name to check all the resources I published. This material includes the following attachments:
11. Realize timer function 3 - "Android multi-function clock project development - produced by Geek Academy" course - Geek Academy. mp4)