Demo that used to show how to use Android Backup Feature with BackupAgent and BackupManager.
| 版本 | 变化内容 |
|---|---|
| Android 1.6 | 加入allowBackup属性默认关闭 |
| Android 2.2 | 开始使用键值对备份模式 |
| Android 6.0 | 开始支持自动备份模式，默认打开allowBackup属性 |
| Android 7.0 | Backup功能将自动备份和恢复用户授予App的权限 |
| Android 9.0 | 新增了加密存储备份文件 |
| Android 12 | D2D场景的Backup规则变更和adb backup命令的限制 |
| 相关属性 | 说明 |
|---|---|
| allowBackup | 是否支持Backup，默认为true |
| backupAgent | 指定Backup代理进行定制 |
| fullBackupContent | 指定备份规则XML文件 |
| restoreAnyVersion | 是否支持高版本数据恢复到低版本应用，默认为false |
| fullBackupOnly | 在指定了BackupAgent后仍然采用AutoBackup模式 |
| killAfterRestore | 全系统恢复期后是否终止应用，默认为 true |
| backupInForeground | 即使应用处于前台也可以对其执行自动备份，默认为false |
| clientSideEncryption | 只在手机设置密钥的情况下执行备份 |
| deviceToDeviceTransfer | 只在D2D设备间备份的情况下执行备份 |
https://blog.csdn.net/allisonchen
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Copyright (c) 2021 Ellison Chan
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