Oppo How to Force Apps into full screen
Oppo 9If the full screen display is not activated for an app, the status bar and the navigation bar will still be displayed, but if the app is to run in full screen, this must be specified in the settings.
Android 10 (ColorOS 7.0)




- Open the Settings
- Tap on Display & brightness
- Tap on Screen display
- Tap on Full screen display by app