Dismiss keyboard as well as fire button's touchupinside event using IQKeyboardManager

Question

I am using this code in appdelegate

IQKeyboardManager.sharedManager().enable = true
IQKeyboardManager.sharedManager().shouldResignOnTouchOutside = true
IQKeyboardManager.sharedManager().touchResignedGestureIgnoreClasses = [UINavigationBar.self,UIControl.self]

assigning touchResignedGestureIgnoreClasses property is allowing me to fire the UIButton event if keyboard is open but it does not dismisses the keyboard simultaneously.

IQKeyboardManager wont dismiss the keyboard if you are performing any actions through controls which are included in the **touchResignedGestureIgnoreClasses**, so as you have included your UIButton — Jayachandra A, Sep 14 '17 at 11:06
@Jayachandra A what should i do then .. if i skip UIbutton from this property , it just dismisses the keyboard the event don't get fired — Preeti Rani, Sep 14 '17 at 11:12

score 1 · Answer 1 · answered Sep 14 '17 at 11:06

1

Try to add this line of code inside your function that handles button's event:

self.view.endEditing = true

answered Sep 14 '17 at 11:06

Evgeny Karkan

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Yes i can use this , but for this i have add this line in each controller . But i want a general solution. – Preeti Rani Sep 14 '17 at 11:07

Jayachandra A · Answer 2 · 2017-09-14T12:30:19.133

In such specific cases you might required to create your own button class sub-classing UIButton and observe the events inside it. Later then specify UIButtons custom class as your own button which you have created.

class KOButton: UIButton {

    var isKeyBoardOpened = false

    // Only override draw() if you perform custom drawing.
    // An empty implementation adversely affects performance during animation.
    override func draw(_ rect: CGRect) {
        // Drawing code

        self.addObserver(self, forKeyPath: "highlighted", options: .new, context: nil)
        NotificationCenter.default.addObserver(self, selector: #selector(keyboardOpened), name: Notification.Name.UIKeyboardDidShow, object: nil)
    }

    override func observeValue(forKeyPath keyPath: String?, of object: Any?, change: [NSKeyValueChangeKey : Any]?, context: UnsafeMutableRawPointer?) {
        if keyPath == "highlighted" {
            UIApplication.shared.keyWindow?.endEditing(true)
            self.isKeyBoardOpened = false
        }
    }

    func keyboardOpened() {
        isKeyBoardOpened = true;
    }


}

I hope this might helps you, if it did't work the follow the another approach below mentioned

Write an extension for UIViewController

// Declare a global var to produce a unique address as the assoc object handle
private var AssociatedObjectHandle: UInt8 = 0
extension UIViewController{

    var isKeyBoardOpened: Bool {
        get {
            return objc_getAssociatedObject(self, &AssociatedObjectHandle) as! Bool
        }
        set {
            objc_setAssociatedObject(self, &AssociatedObjectHandle, newValue, objc_AssociationPolicy.OBJC_ASSOCIATION_RETAIN_NONATOMIC)
        }
    }


    func addKBOforButton(aButton: UIButton) {
        aButton.addObserver(self, forKeyPath: "highlighted", options: .new, context: nil)
        NotificationCenter.default.addObserver(self, selector: #selector(keyboardOpened), name: Notification.Name.UIKeyboardDidShow, object: nil)
    }

    override open func observeValue(forKeyPath keyPath: String?, of object: Any?, change: [NSKeyValueChangeKey : Any]?, context: UnsafeMutableRawPointer?) {
        if keyPath == "highlighted" {
            UIApplication.shared.keyWindow?.endEditing(true)
            self.isKeyBoardOpened = false
        }
    }

    func keyboardOpened() {
        isKeyBoardOpened = true;
    }
}

And then call this function from your viewcontroller

self.addKBOForButton(aButton: button)

can i declare these functions in ViewController extension instead of uibutton class and call it in viewdidload so that every controller inherits this functionality ?? — Preeti Rani, Sep 14 '17 at 11:59
getting this error -----> An instance 0x7fea88ccd6b0 of class UIButton was deallocated while key value observers were still registered with it. Current observation info: ( Context: 0x0, Property: 0x6000006427f0> — Preeti Rani, Sep 14 '17 at 14:11

Dismiss keyboard as well as fire button's touchupinside event using IQKeyboardManager

2 Answers2