cross-posted from: https://lemmy.ml/post/21015575
Hackers Keyboard has that via ctrl+z, but only in horizontal mode. For this only i had my Galaxy S3 in horizontal per default. But can't do that with modern phones' aspect ratio and i'm missing undo since then.
To my knowledge, every single one. It's called the Backspace Key.
How do you undo deleting something?
You don't, or at least I never have. Once it's gone, it's just gone.
Then a proper undo function would have some merit over the backspace if you ask me.