adding "bulletinWillAppear/DidAppear" about bulletinboard HOT 4 CLOSED

Hi, I added this for when the bulletin appeared, see if this can help you:
#47

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This feature shipped with the version 2.0.0-beta.3 of the library. You now can set a presentationHandler and a dismissalHandler on the item to handle these events. These are called during the transition in BLTNManager.

Thanks again for your suggestion!

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@alexaubry is there a way to set a dismissal handler on the BLTNItemManager itself, so it get called when the bulletinController is dismissed?
It would be helpful to do some task only once with bulletinController, instead handling each case with each item..

Thank you

from bulletinboard.

There is not a way in the current version of the framework.

But you can accomplish something similar if you are willing to configure your code in a particular way. I conform to this protocol, handle all button press actions within each BLTNPageItem, and then explicitly close the the BLTNItemManager with either displayPageError() or closeBulletinBoard(). Every Page has a custom init() that takes a BulletinPageResult completion block. When Pages create other Pages, they pass the completion block along. Any Page can terminate the manager, and a single call will be made to the completion. It spits out a Bool, but you could modify it to return an enum or whatever you like.

typealias BulletinPageResult = (Bool) -> ()

protocol CustomBulletinPage where Self : BLTNPageItem {
    
    var errorTitle: String { get }
    var completion: BulletinPageResult? { get }
    
    func displayPageError(msg: String, closeBulletin: Bool)
    func closeBulletinBoard(_ result: Bool)
}

extension CustomBulletinPage {
    
    func enableCustomDismissalHandler() {
        self.isDismissable = true
        self.dismissalHandler = { _ in
            self.completion?(false)
        }
    }
    
    func displayPageError(msg: String, closeBulletin: Bool = true) {
        let alertView = AlertController(title: errorTitle, message: msg, preferredStyle: .alert)
        alertView.addAction(UIAlertAction(title: "OK", style: .default) { alertAction in
            if closeBulletin {
                self.closeBulletinBoard(false)
            }
        })
        self.manager?.present(alertView, animated: true)
    }
    
    func closeBulletinBoard(_ result: Bool) {
        if let manager = self.manager {
            manager.dismissBulletin(animated: true)
        } else {
            DDLogError("Unable to dismiss BulletinBoard with nil manager")
        }
        completion?(result)
    }
}

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