Android Apk自动更新service Android sdk version 9以上就有DownManager 使用DownManager,我们可以很简便的在各个安卓机子上升级自家的应用 本例写了一个UpdataService实现后台下载新的APK到sdcard，并自动安装更新。 /** * 检测安装更新文件的助手类 * * @a

Android allows you to backup your application data to remote "cloud" storage, in order to provide a restore point for the application data and settings. You can only backup your ap