Why is Redmi 8a split screen gone?

Step 1: First, make sure that the mobile phone system is upgraded to MIUI9 or above.

Step 2: Click Settings on Xiaomi Desktop.

Step 3: Click Options to enter the application settings.

Step 4: Select Apply in Xiaomi's permission setting options.

Step 5: Check the check box to refuse to display the floating window.

Step 6: Drag the application split screen, open the small window mode, and click Finish.