Revert remove `windowScence` when hiding Toast view

[canhth]

Description

• We have an issue that Popup can not show in the second time if the previous popup's window was becomeActive.

  Solutions

  1. Just revert the logic clear the windowScene window?.windowScene = nil.
  2. Add more condition check, if the current window isKeyWindow --> ignore.

     if #available(iOS 13, *), window?.isKeyWindow == false {
         window?.windowScene = nil
     }

     Isssue:

     https://github.com/SwiftKickMobile/SwiftMessages/issues/429

[wtmoose]

According to the Apple documentation, it seems that setting windowScene = nil is correct.

https://developer.apple.com/documentation/uikit/uiwindow/3197962-windowscene https://developer.apple.com/documentation/uikit/uiwindowscene/3198091-windows

Furthermore, we were unable to reproduce your issue. To move forward with this, we need reproduction steps from you.

[canhth]

Hi @wtmoose,

Yes, I do understand that setting windowScene = nil is recommended by Apple. But I was able to reproduce this issue in iOS 14.1 and iOS 13.7. But seems it working fine in iOS 14.2 and 13.5...

So I assume this is the OS issue, and I suggest let's keep it for now.

If anyone facing the issue popup can not displayed --> We can redirect him to this: https://github.com/SwiftKickMobile/SwiftMessages/issues/429#issuecomment-730996540

[wtmoose]

@canhth sounds good. I'm going to close this for now. Thanks