Back swipe doesn't work in xdc apps

[Amzd]

• iOS version: iOS 16
• Device: iPhone X
• Delta Chat version:
• Expected behavior: swipe from left edge should close pushed vc
• Actual behavior: doesn't do anything, probably because it's a web view and the back swipe is reserved to go back in history?
• Steps to reproduce the problem: open any xdc app and try to close it with a swipe
• Screenshots:
• Logs:

[r10s]

this is on purpose as apps, esp games, using comparable gestures are otherwise terminated unexpectedly - which is much worse, when a new highscore is ruined by that :)

[Amzd]

I see. That would be annoying. Still think it's also annoying that you can't swipe back when you go into eg a todo list. Maybe we can make a toggle for it that remembers which app you want to be able to swipe back?

[r10s]

maybe. issue with an option will then be that there is no consistent way to exit apps :/ that will look even more as bug - or needs explanation/care of users. also, we try to avoid options wherever possible.

maybe we should also consider to re-add the swipe option in general. this might be the better tradeoff:

• since it was removed, screens got bigger (esp. we devs has an iPhone SE1 that time)
• the decision that time was easy, as there were no tools at all. @adbenitez can you say what is the worse/fastest game to try that may interfere with swipe to go back? (@adbenitez did quite some of the existing games)
• in general iOS is pretty good at detecting these swipes, one has really to start outside the screen - and there are anyway swipes from top/bottom we cannot disable

[Amzd]

Idk how fast the games are but we can also store the pushed webxdc vc for a couple seconds so if you click the same webxdc item, it will give the stored vc instead of restarting the web view? So if you accidentally exit it wouldn't discard anything.

or on first back-swipe we can ask the user "did you mean to close the webxdc app? y/n" and store their preference for this webxdc app

It's not great UX to have to go all the way to top left to exit the view.

[Simon-Laux]

I guess if the webxdc app should configure it, then it should be a property in the webxdc manifest.toml

[Amzd]

#2322 made a concept that fixes some of your concerns with backswipe interfering with games.

RPReplay_Final1729015044.mp4