If your Android power button is broken this app is for you!

Can work:
1> Click the volume power notification bar to lock the screen but only below Android 6.0
2> Through the volume key to unlock you can reduce the use of the power button

Warning:
1> The use of applications will increase the power consumption which is inevitable
2> It cannot be started and shut down
3> It is not guaranteed to work on all systems because it may be limited by the system

end:
Welcome to the app. If you have any questions please let me know and I will try my best to correct them