Migrate helper

This app is part of a backup-restore app. Following permissions are needed:

WRITE_EXTERNAL_STORAGE: To store TWRP zip files for uninstalling helper.

How to use:

1. Take a migrate backup.

2. Boot to TWRP and flash the zips. See in the app's "Restore by TWRP" on how to do it.

3. Boot up the ROM. Click on the helper notification, continue restoring.

该应用程序是备份-还原应用程序的一部分。需要以下权限：

WRITE_EXTERNAL_STORAGE：存储TWRP zip文件以卸载帮助程序。

如何使用：

1.进行迁移备份。

2.引导至TWRP并刷新拉链。有关如何操作的信息，请参见应用程序的“通过TWRP还原”。

3.引导ROM。单击帮助程序通知，继续还原。