问题
I found MMGuardian a pretty App to Monitor Android devices. It includes a Feature called Safe Mode Lock (http://www.mmguardian.com/safe-mode-lock). Which protects Safe Mode booting with a Password. Has somebody a idea how it works, how I can implement a similar Feature?
回答1:
I found a easy solution.
The idea is simple. On shutdown the device password will be set to a master password. The normal user doesn't know the password. And on boot the password will be reset to teh users password, but the reset will not be executed in Safe Mode. So the safe mode is locked for normal users. I'm not sure if it's works for all devices,
You can find the source at github https://github.com/areman/samo
来源：https://stackoverflow.com/questions/31968627/android-safe-mode-password-protection