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 following permissions:
1. 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.
2. AccessibilityServices API: For supported phones fingerprint, to turn off and
lock the screen and screen unlock operations with fingerprints on your
phone device.
To off AccessibilityServices: Go to phone's Settings > Accessibility >
Downloaded apps/Installed services > Screen Off and Lock > Switch off