常见操作

a. 去除顶部标题栏：Android - How to remove the title bar from your application activity | sebhastian
b. 修改应用图标：EasyAppIcon - Create Mobile App Icon
c. 使用webview:

1. Android WebView Example Tutorial | DigitalOcean
2. localStorage android webview | Code Ease

d. webview input type = file 访问文件夹：Handling input type file in android webview - source code included - App Snipp
e. 修改package https://stackoverflow.com/questions/16804093/rename-package-in-android-studio