Swift UIButton addTarget launch automattically

Question

I have a little problem with my addTarget in UIButton. When I run my app, my function is automatically launched, while he is necessary to press the UIButton to launch. I don't know where is my problem.

My Button

let BTN_happy : UIButton = UIButton()
    BTN_happy.frame = CGRectMake(0, rowHeight * 1, fullWidth, rowHeight)
    BTN_happy.backgroundColor = UIColor(hexString: "#ff3b30")
    BTN_happy.addTarget(self, action: Selector(data("Happy")), forControlEvents: .TouchUpInside)

    self.view.addSubview(BTN_happy)
    text("Happy", button: BTN_happy)

My Function

func text(text: String, button: UIButton) {

        let txt : UILabel = UILabel()
        txt.text = text.uppercaseString
        txt.frame = CGRectMake(20, 0, fullWidth - 40, button.bounds.size.height)
        txt.textColor = UIColor(hexString: "#ffffff")
        txt.font = UIFont.systemFontOfSize(30, weight: UIFontWeightHeavy)
        txt.shadowOffset = CGSize(width: 2, height: 2)
        txt.shadowColor = UIColor(hexString: "#000000", alpha: 0.3)

        button.addSubview(txt)

    }

    func data(mood: String) {
        NSLog("Mood: \(mood)")
    }

Thank you in advance for your response.

can you elaborate this part of your code: `Selector(data("value"))`, please? — holex, Dec 16 '15 at 16:53
so I can tell you then, that is totally wrong; it is supposed to be `Selector("data:")`, if you have a `@IBAction func data(sender: UIButton) { ... }` somewhere in your class. — holex, Dec 16 '15 at 17:07
I don't have IBAction, I created my button programmatically, and also my function for get value of my UIButton. — Kevin Py, Dec 16 '15 at 17:10

Midhun MP · Answer 1 · 2015-12-16T17:06:54.397

1

You can't add a selector like that way. You need to change it like:

myBTN.addTarget(self, action: Selector("data:"), forControlEvents: .TouchUpInside)

Also change the method signature like:

func data(sender: UIButton)
{
   NSLog("Button clicked")
}

edited Dec 16 '15 at 17:06

answered Dec 16 '15 at 17:04

Midhun MP

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If I apply your method, I have this comment: Mood: > – Kevin Py Dec 16 '15 at 17:05
@JamesHornet: Change the log and check again – Midhun MP Dec 16 '15 at 17:07
1

@JamesHornet: That'll be the desired output, so what is your expectation – Midhun MP Dec 16 '15 at 17:07
The log works, but I can't get my value when I press my UIButton – Kevin Py Dec 16 '15 at 17:09
@JamesHornet: What value you need to pass ? Also you can't pass data through a selector that is attached to a button event – Midhun MP Dec 16 '15 at 17:27

score 0 · Answer 2 · answered Dec 16 '15 at 17:20

0

For resolve my problem, I use tag in my UIButton.

answered Dec 16 '15 at 17:20

Kevin Py

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Swift UIButton addTarget launch automattically

2 Answers2