iPhone X/iOS swipe gesture - Keyboard from other apps resizes Capacitor app

[ionic-team]

iPhone X/iOS swipe gesture - Keyboard from other apps resizes Capacitor app

[jcesarmobile]

I've been able to reproduce, so I'm going to reopen.
I've checked with just UIKeyboardIsLocalUserInfoKey and a combination of UIKeyboardIsLocalUserInfoKey and UIApplicationStateActive and they don't fix it and can even cause that the black area is not removed.

[Sasha4ever]

Are there any news?

[benharpers]

Thanks for the update, not sure if it fixed the problem though. I copied just the Keyboard.m from the repo and seems to still happen. The if conditions you added aren't running while it's in the background, apparently the keyboard hide event from the other app like Messages happens after the Capacitor app becomes active, so UIApplicationStateActive is the state at that point.

I think this is the condition to check for:

  if (UIKeyboardIsLocalUserInfoKey.boolValue == true) {
...
  }

https://developer.apple.com/documentation/uikit/uiresponder/1621603-keyboardislocaluserinfokey

It appears to work, at least on my old iPhone X.

[jcesarmobile]

I first tried with UIKeyboardIsLocalUserInfoKey and it was returning true sometimes, but my app wasn't showing a keyboard, so I don't think that value it's trustworthy. Checking for UIApplicationStateActive worked fine for me when switching from Twitter app, didn't try with Messages app, will try again.

[benharpers]

Yeah I did see the app state method work sometimes also, and I might have noticed some unreliability with the keyboardIsLocal option... perhaps it would be a good idea to check that both are true.

[benharpers]

I think part of the reason it's happening specifically with the swipe gesture on iPhone X is that the app activate and keyboard close event happen almost at the same time with that gesture, maybe either condition could happen first and maybe that is where the unreliability comes from.

[benharpers]

Thanks, sorry for the trouble! Not sure why Apple thought it was a good idea to let apps know about other apps keyboards!

[oliverandersencox]

@jcesarmobile I have this issue when using the in app browser for social logins, the keyboard will appear and disappear ad the browser closes. However after the black space is left and does not resize.

Is there a method I can use to resize the app again after this?