SwiftMessage is not working iOS 13.3

[kanak14]

Hi Dear,

SwiftMessage is working on iOS 12 and below , Simulator. After update my phone in 13.2 then app will be crashed, Please le me explain how to resolved this issue.

Find the snap-short.

[wtmoose]

Dunno. It isn't crashing for anyone else. What is the error?

Try cleaning your derived data.

[BrunoDonini]

Hi,

I had the same problem. I solved it by forcing the execute of the configureDropShadow() method in the main thread.

From this:

func showSuccess(_ message: String?, title: String? = nil) {
  let success = MessageView.viewFromNib(layout: .cardView)
  success.configureTheme(.success)
  success.configureDropShadow() // <- cause of the problem
  success.configureContent(title: title ?? "", body: message ?? "")
  success.button?.isHidden = true
  var successConfig = SwiftMessages.defaultConfig
  successConfig.presentationStyle = .bottom

  DispatchQueue.main.async {
    SwiftMessages.show(config: successConfig, view: success)
  }
}

to:

func showSuccess(_ message: String?, title: String? = nil) {
  DispatchQueue.main.async {
    let success = MessageView.viewFromNib(layout: .cardView)
    success.configureTheme(.success)
    success.configureDropShadow()
    success.configureContent(title: title ?? "", body: message ?? "")
    success.button?.isHidden = true

    var successConfig = SwiftMessages.defaultConfig
    successConfig.presentationStyle = .bottom

    SwiftMessages.show(config: successConfig, view: success)
  }
}

[wtmoose]

@BrunoDonini how's you get off the main queue? You've got to call SwiftMessages on the main queue or use show(viewProvider:)

[BrunoDonini]

In my case, the showSuccess method is called in an async completion block

[wtmoose]

@BrunoDonini OK I didn't read our post carefully. So you're correct – you shouldn't use UIKit APIs on a background queue, so wrapping the whole thing in DispatchQueue.main.async makes sense.

[BrunoDonini]

Maybe the problem of Kanak is that the configureDropShadow method did not crash in iOS 12 if called in a background thread, instead in iOS 13 it crash