Second easiest method I found is to use the app EDGE GESTURES and assign TOGGLE SPLIT SCREEN to any swipe or gesture on an edge. This also works . But make sure you give / enable auto start permission and Turn off Miui battery saving options for this app. Otherwise Miui Will Kill the app after some time .
Step 1: Click on the window you want to split the screen, then simultaneously press the key combination 'Windows + Left or Right Arrow Key' depending on your preference. Aim to minimize the window to fill the left or right half of your computer screen. Step 2 : Perform the same operation with the remaining window.
Its called MIUI-ify, and it adds a little control centre on the bottom of the screen. If you allow all the permissions required you can edit icons that will show up in the control centre and add split screen icon. when you thatń open the control centre you can tap on it and it sets the app that you are on in split screen. 1.Learn more info about XIAOMI Mi 11:
Android 9. Multi-window mode enables multiple apps to share the same screen simultaneously. Apps can be side by side or one above the other (split-screen mode), one app in a small window overlaying other apps (picture-in-picture mode), or individual apps in separate movable, resizable windows (free-form mode).
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