You can force a particular rotation on apps with fixed screen orientation. A simple design with features that are easy to understand and use. This app needs to run a service in the background to detect which app has started. OPPO devices require special settings for operate the application services in the background due to its unique specifications. (If you don't, services running in the background will be forcibly shut down and the app won't work properly.) Drag this app down a bit from the recent app history and close it. set, look for "OPPO Task Lock".
- Rotation Settings You can configure the screen rotation.
- Notification settings Control screen rotation easily from the notification bar.
- Rotation settings per application You can configure different rotations for each application.
- Special case setting Detects when chargers or headphones are connected and rotates to preset screen orientation.
Required Android Versions : Jelly Bean [4.1–4.3.1] - KitKat [4.4–4.4.4] - Lollipop [5.0–5.0.2] - Marshmallow [6.0 - 6.0.1] - Nougat [7.0 – 7.1.1] - Oreo [8.0-8.1]