1. Drag and drop the split-screen application into the Dock at the bottom of the screen to open the first application.

2. Gently slide up from the bottom of the screen to bring up the Dock.

3. Bring up the second APP to be opened from the Dock, and drag it to the right to form a left-right split screen.

4. Drag to the middle to form a floating screen.

Mobile phone split screen refers to the simultaneous use of two applications on a mobile phone screen, and the relative window sizes of the two applications can be adjusted.

IPhone is a series of smart phones developed by Apple in the United States, which is equipped with its developed iOS operating system.