How do you undo on an Android phone?

Undo and redo changes (Android)

• Make sure the element with the last made changes is selected. It should have a white box around it.
• Tap the arrow pointing to the left found at the top of your screen to undo the change.
• To redo a change, simply tap the arrow pointing to the right found next to the undo button.

How do you retrieve deleted typing on Android?

Everything happens in the background and you don’t need to worry about it till you actually need to undo/redo what you wrote. In that case, tap the floating icon and Inputting+ shows up as a pop-up window. Undo and Redo: Tap the Undo or Redo arrows to find the text you had recently typed.