Function:
  Turn off and lock the screen for your beloved handset.
  This function already exists on your phone, which is the power button. But because of too much pressure it will quickly become greasy. So we write this application helps the user to share the burden on the power button (Power).

This app uses the Device Administrator permission.
To uninstall Lock Screen app:
1. Go to phone's Settings > Security > Device administrators > Uncheck Screen Off and Lock.
2. Go to phone's Settings > Apps > Lock Screen > Tap uninstall.