ajouter une vue en haut du clavier à l'aide de InputAccessoryView swift

Question

J'essaie d'ajouter un uiview pour être toujours au-dessus du clavier . Je l'ai d'abord fait avec KeyboardWillShow/Hide, mais cela ne couvre pas tous les cas Et j'essaie d'utiliser inputAccesoryView . c'est ce que j'ai essayé: 

private var accessoryView = UIView(frame: CGRectZero)

class ViewController : UIViewController {

var myView: customUIView

override var inputAccessoryView: UIView {
    return accessoryView
}

override func canBecomeFirstResponder() -> Bool {
    return true
}

override func viewDidLoad() {
   super.viewDidLoad()
   accessoryView = myView
}
}

Je reçois le message d'erreur suivant: L'application est arrêtée en raison d'une exception non interceptée 'UIViewControllerHierarchyInconsistency', raison: 'contrôleur de vue enfant: UICompatibilityInputViewController doit avoir le contrôleur de vue parent: MyViewController mais le parent demandé est: UIInputWindowController:'

toute aide serait appréciée!

Answer 1

Pour que la vue reste collée au-dessus du clavier, le code lui-même est assez simple. Le code que vous avez posté n'est pas correct, essayez ceci (notez que vous devez connecter textField à UITextField dans votre storyboard):

@IBOutlet weak var textField: UITextField!

override func viewDidLoad() {
    super.viewDidLoad()

    let customView = UIView(frame: CGRect(x: 0, y: 0, width: 10, height: 44))
    customView.backgroundColor = UIColor.red
    textField.inputAccessoryView = customView
}

Answer 2

Détails

xcode 9.2, Swift 4

Solution

KeyboardToolbarButton

import UIKit

enum KeyboardToolbarButton: Int {

    case done = 0
    case cancel
    case back, backDisabled
    case forward, forwardDisabled

    func createButton(target: Any?, action: Selector?) -> UIBarButtonItem {
        var button: UIBarButtonItem!

        switch self {
        case .back:
            button = UIBarButtonItem(title: "back", style: .plain, target: target, action: action)
        case .backDisabled:
            button = UIBarButtonItem(title: "back", style: .plain, target: target, action: action)
            button.isEnabled = false
        case .forward:
            button = UIBarButtonItem(title: "forward", style: .plain, target: target, action: action)
        case .forwardDisabled:
            button = UIBarButtonItem(title: "forward", style: .plain, target: target, action: action)
            button.isEnabled = false
        case .done:
            button = UIBarButtonItem(title: "done", style: .plain, target: target, action: action)
        case .cancel:
            button = UIBarButtonItem(title: "cancel", style: .plain, target: target, action: action)
        }
        button.tag = rawValue
        return button
    }

    static func detectType(barButton: UIBarButtonItem) -> KeyboardToolbarButton? {
        return KeyboardToolbarButton(rawValue: barButton.tag)
    }
}

KeyboardToolbar

import UIKit

protocol KeyboardToolbarDelegate: class {
    func keyboardToolbar(button: UIBarButtonItem, type: KeyboardToolbarButton, tappedIn toolbar: KeyboardToolbar)
}

class KeyboardToolbar: UIToolbar {

    weak var toolBarDelegate: KeyboardToolbarDelegate?

    init() {
        super.init(frame: .zero)
        barStyle = UIBarStyle.default
        isTranslucent = true
        sizeToFit()
        isUserInteractionEnabled = true
    }

    func setup(leftButtons: [KeyboardToolbarButton], rightButtons: [KeyboardToolbarButton]) {

        let leftBarButtons = leftButtons.map { (item) -> UIBarButtonItem in
            return item.createButton(target: self, action: #selector(buttonTapped))
        }

        let rightBarButtons = rightButtons.map { (item) -> UIBarButtonItem in
            return item.createButton(target: self, action: #selector(buttonTapped(sender:)))
        }

        let spaceButton = UIBarButtonItem(barButtonSystemItem: .flexibleSpace, target: nil, action: nil)
        setItems(leftBarButtons + [spaceButton] + rightBarButtons, animated: false)
    }

    required init?(coder aDecoder: NSCoder) {
        super.init(coder: aDecoder)
    }

    @objc func buttonTapped(sender: UIBarButtonItem) {
        if let type = KeyboardToolbarButton.detectType(barButton: sender) {
            toolBarDelegate?.keyboardToolbar(button: sender, type: type, tappedIn: self)
        }
    }

}

Exemple complet d'utilisation

import UIKit

class ViewController: UIViewController {

    override func viewDidLoad() {
        super.viewDidLoad()
        // Do any additional setup after loading the view, typically from a nib.
        createTextField(frame: CGRect(x: 50, y: 50, width: 200, height: 40), leftButtons: [.backDisabled, .forward], rightButtons: [.cancel])
        createTextField(frame: CGRect(x: 50, y: 120, width: 200, height: 40), leftButtons: [.back, .forwardDisabled], rightButtons: [.done])
    }

    private func createTextField(frame: CGRect, leftButtons: [KeyboardToolbarButton] = [], rightButtons: [KeyboardToolbarButton] = []) {
        let textField = UITextField(frame: frame)
        textField.borderStyle = .roundedRect
        let toolbar = KeyboardToolbar()
        toolbar.toolBarDelegate = self
        toolbar.setup(leftButtons: leftButtons, rightButtons: rightButtons)
        textField.inputAccessoryView = toolbar
        view.addSubview(textField)
    }
}

extension ViewController: KeyboardToolbarDelegate {
   func keyboardToolbar(button: UIBarButtonItem, type: KeyboardToolbarButton, tappedIn toolbar: KeyboardToolbar) {
        print("Tapped button type: \(type)")
    }
}

Résultats

 

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Answer 3

Modifications à apporter à votre code:

• Donner accessoryView une hauteur
• Supprimer var myView: customUIView et le remplacement complet de viewDidLoad()

Answer 4

Essaye ça.

override var inputAccessoryView: UIView? {
    get {
       return containerView
    }
}
override var canBecomeFirstResponder: Bool {
   return true
}