Dismissing ViewControllers above causes UI bug

[LinusGeffarth]

EDIT

It was not setting the image programmatically that causes the issue, but dismissing a UIViewController above the one with the image after presenting it as a popover i.e..
Below the original post.

---

I have set UIImageViewAligned as my UIImageView's class in storyboard, enabled right alignment and provided an image:

It works just like it should until I update the image programmatically like:

imageView.image = UIImage(named: "account.png")!

This results in the following UI:

Any idea why this happens & what I can do about it?

[sochalewski]

Looks like a bug. Thank you for your report, I'll investigate this within a few days. Could you please let me know which version do you use?

[LinusGeffarth]

Cool, thanks for taking care of this. I am currently on 0.5.0 and am using CocoaPods

[sochalewski]

@LinusGeffarth Just checked it out on iOS 11.1 and it seems to work just fine.
Take a look at the example I provided and compare it to your code.

Demo

[LinusGeffarth]

Hm, true. I figured when I set the image at some other point in my code, it does work w/o issues. It's probably about constraint refreshes I'm committing...
Thanks anyway!

[LinusGeffarth]

I've found the issue. Whenever you present a view controller on the view controller with the image view inside, and then dismiss it, the bug occurs. Check out the zip. Make sure to run it on an iPad, I've only experienced the issue with popovers.

Test.zip

[sochalewski]

I got it. Just released 0.5.1-beta which resolves the issue, but may implement some new :)

To check it out change one of lines in your Podfile to
pod 'UIImageViewAlignedSwift', '~> 0.5.1-beta'
and then run pod update --repo-update.

[LinusGeffarth]

Awesome! I have updated to the beta and it works for the test project. However, for mine, it doesn't. I'm still debugging.
My structure:

Nav
    -> PageController
        -> Nav
            -> VC
                -> TabBar
                    -> Nav
                        -> VC
                            -> VC over full screen, w/ image view
                                -> Popover that's to be dismissed

Maybe that helps...

---

Edit

I only experience it in one VC so it's probably some other issue. Geez. Ha!

[sochalewski]

Wow, it looks crazy :) I have no idea at this moment, but I'll try resolve this. Nevertheless feel free to post your solution or pull request when you got something 👍

[lkravchuk]

I was able to reproduce the bug on the iOS11+ only and it seems that it's still there even in updated 0.5.1-beta. ImageView was added to storyboard with aspect Fit content mode and left alignment ON
You can replicate this behavior by using the system alerts with 0.5.0
Or by pushing some view with 0.5.1-beta
Trying to figure out how to fix it

Update
Well, still have no idea why, but it seems that on iOS 11 any changes on parent view controller causes the showing of image and realImageView?.image at the same time, so using the last fix from beta branch + re-assigning the image inside didMoveToWindow() fixed it for me, but would be great if to test this more to be sure that there will be no more side-effects.

[ToniTornado]

I used the latest beta branch but still had this issue. To reproduce it, I had to start the app, dismiss it (home button), bring it to foreground and then rotate the view.

Maybe this helps someone debugging it...

[Niegazowana]

Hi! I opened a PR to solve this issue