iOS 15
Switch between keyboards with Magic Keyboard and iPhone
With Magic Keyboard, you can switch between the language keyboard for your region, an emoji keyboard, other language keyboards that you add, and the onscreen keyboard.
Switch between language keyboards and the onscreen emoji keyboard
On Magic Keyboard, press and hold the Control key.
Press the Space bar to cycle between the language keyboard for your region, the emoji keyboard, and any keyboards you added for typing in different languages.
Show or hide the onscreen keyboard
To show the onscreen keyboard, press on Magic Keyboard. To hide the onscreen keyboard, press again.