android进行简单的2D动画效果，因为时间比较紧，我比较需要的Java监控USB方面的资料，暂时先上传比较简单的android，以后会为大家上传一些THREE.js方面动画- android simple 2D animation, because time is tight, I monitor USB data Java s comparative need, being the first to upload a relatively simple android, later w