MessageInputBar hides and reappears slowly when QLPreviewController is dismissed using the Interactive gesture.

[Zulqarnayn]

Describe the bug
When QLPreviewController is dismissed using the swipe gesture, MessageInputBar hides and reappears slowly.

To Reproduce

1. Tap on the keyboard
2. Present a photo using QLPreviewController ( modalPresentationStyle = .fullScreen )
3. dismiss QLPreviewController by swipe gesture

func presentQLPreviewController() {
    let controller = QLPreviewController()
    controller.modalPresentationStyle = .fullScreen
    controller.dataSource = self
    self.present(controller, animated: true)
}

Expected behavior
A clear and concise description of what you expected to happen.

Screenshots

Environment

• What version of MessageKit are you using? - 6.1.0
• What version of iOS are you running on? - iOS 15.5
• What version of Swift are you running on? - - Swift 5
• What device(s) are you testing on? Are these simulators? - iPhone / iPad
• Is the issue you're experiencing reproducible in the example app? - Yes

Additional context
Add any other context about the problem here.

[ohserezha]

i have a similar issue - MessageInputBar reappears after modal presentation

[timetraveler90]

@SD10 - @Kaspik
Can you guys take a look at this as it's 100% reproducible all the time, even with the latest version

[bondarienko-iuliia]

I found a solution that worked for me:
The idea is to disable animation after QLPreviewController appears and enable it back in QLPreviewController’s viewDidDisappear.
To do that I create CustomQLPreviewController with completion handler, I call the handler in viewDidDisappear of the created class:

class CustomQLPreviewController: QLPreviewController {
    var completionHandler: (() -> Void)?
    
    override func viewDidDisappear(_ animated: Bool) {
        super.viewDidDisappear(animated)
        completionHandler?()
    }
}

Set completion handler after I create an instance of CustomQLPreviewController,
then enable animation back after presenting the custom QLPreviewController:

func presentQLPreviewController() {
    let qlvc = CustomQLPreviewController()
    qlvc.completionHandler = {
        UIView.setAnimationsEnabled(true)
    }
    qlvc.dataSource = self
    present(qlvc, animated: true, completion: nil)
    UIView.setAnimationsEnabled(false)
}