(This project is the source code of the gesture password part of Alipay. The project is in 1280 × There is a problem with the 720 resolution, but no problem with the 854x480 resolution. The project code UTF-8 implicitly allows the compilation of version 4.4.2. The implementation idea is: 1. A class should be used to indicate the first of the nine points. There is a record of the time)