Still iffy on mobile because the way the device is being held can’t be assumed. The area the toast appears is very easily hidden by a hovering thumb for instance, especially for people with larger hands.

Undo and back are conceptually similar but different. On iOS, consistently anywhere you can enter text you can give your phone a quick shake (similar to a person shaking their head “no”) and it’ll offer to undo the last edit. Many apps like Reminders use this for actions like item completion too. There’s a native undo stack you can use to leverage this as a third party dev. There’s also a gesture that can trigger this but I have yet to commit that to memory.

Android does not have an undo gesture. Some skins (like Samsung’s) implement something similar but it’s not consistent and it’s limited to text editing.

For going back, all apps built with native iOS UI toolkits have a swipe gesture that goes back to the previous screen. Cross platform apps built with other frameworks are notoriously bad about not implementing this, though. It’s true that there’s no cross-app back gesture, but swiping back and forth on the home bar is a rough approximation.

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const_cast 6 days ago | parent [-]

IME it's the exact opposite. That iOS undo action is more or less theoretical - the apps that support that are some of Apples... And that's it.

The android back action is universally supported. Its literally a button, still, to this day, persistent on your screen by the OS.

Also, the "swipe back" action on iOS is more or less fake. Its applied so inconsistently it might as well not exist.

In my head "back" and "undo" are usually the same thing. iOS has a good interface, but this is one glaring blind spot they missed to Android and browsers. It actually makes iOS quiet frustrating to use.

Also, barely related: but the "shaking your device is like shaking your head no" thing is the stupidest thing I've ever heard in my life. I'm sure Apple thinks its very intuitive and good design, but it's really, really not. That's one of the least discoverable things I've ever heard. Apple please don't do that.

	▲	cosmic_cheese 6 days ago \| parent [-]
		Swipe to go back support is pretty wide if you select for iOS-first apps (I do). It’s glaring when I try to use it and it’s not there, so when that happens I’ll either go find an alternative or drop back to the web app (where Safari will definitely implement it). My Android devices all have the gesture bar enabled because the old style button bar is an eyesore and easy to trigger accidentally (Android’s swiping from the right to go back is also too easy to trigger as a right-handed person, but that’s another story). My metal model for the undo/back split actually follows desktop browsers. Cmd-Z isn’t going to undo navigation while Cmd-[ will, and so the two are separate and distinct.