How to send additional parameter in addtarget function?

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please anyone tell me, How to send additional parameter in addtarget function in swift 2.2? Example:

button.addTarget(self, action: #selector(classname.myFunc(_:)), forControlEvents: UIControlEvents.TouchUpInside))

func myFunc(sender:UIButton){
    print("i am here")
}

to

func myFunc(sender:UIButton,parameter:String){
    print("i am here")
}

You can create a subclass of UIButton, add one property named parameter which you want to pass as an extra parameter.

In addTarget(), you can only choose passing the caller or not. In this case, the caller is a UIButton.

So use the subclass and call addTarget(), then you can get the string which you want send:

func myFunc(sender: customUIButton) {
    // do something with sender.parameter
}

Hope it can help you.

Attach parameter to button.addTarget action in Swift, If you want to send additional parameters to the buttonClicked method, for example an indexPath or urlString, you can subclass the UIButton: class� To understand how to pass a value as a parameter through an onClick event handler, take a look at the line of code inside of the return statement. It’s a single button with one event handler: onClick. Typically, to call a function when we click a button in React, we would simply pass in the name of the function to the onClick handler, like so:

In Swift 2.2 you can do something like this.

myUISlider.addTarget(self, action:#selector(self.onSliderValChanged(_:withEvent:)), forControlEvents: .ValueChanged)

func onSliderValChanged(slider: UISlider, withEvent event: UIEvent?) {
    }

Help with passing multiple parameters through .addTarget to , //I don't think I can use tags because I need to send more variables and not use Int's } you could wrap your loop in another function to be called by the selector. The control does not retain the object in the target parameter. It is your responsibility to maintain a strong reference to the target object while it is attached to a control. Specifying a value of 0 for the control Events parameter does not prevent events from being sent to a previously registered target and action method.

I use sender properties to send some parameters with it like

button.accessibilityHint = "param 1"
button.accessibilityValue = "param 2"
button.tag = 0

button.addTarget(self, action: #selector(buttonPressed(_:)),   forControlEvents: UIControlEvents.TouchUpInside))

func myFunc(sender:UIButton){

 print(sender.accessibilityHint) // param1
 print(sender.accessibilityValue) // param2
 print(sender.tag) // 0

}

pass parameter extra parameter button click ios swift target action , You cannot pass custom parameters in addTarget: .One alternative is set the tag property of button and do work based on the tag. button.tag = 5� So, in this post, I am going to tell you how to create a Python function with optional arguments. Creating a function with optional arguments in Python is quite an easy task. Let’s see with our first exam. Below we have created a Python function with a default argument: def my_function(a=10): print(a) my_function()

It's not possible. You have to use a workaround.

button.addTarget(self, action: #selector(classname.myFunc(_:)), forControlEvents: UIControlEvents.TouchUpInside))

func myFunc(sender:UIButton){
    self.myFunc2(sender, parameter: "My parameter")
}

func myFunc2(sender:UIButton,parameter:String){
}

Attach parameter to button.addTarget action in Swift, swift button action function argument of '#selector' does not refer to an '@objc' method, property, or initializer uibutton add target swift 4 swift pass selector as� Namespace.ServiceName.Method(parameters, successCallback, failedCallback, userContext) The userContext parameter is a value that you can pass from the calling method to the success and failed callback methods.Your successful callback method will look like this. function serviceCallback(result, context, methodName) { }

Swift 5.0 code

theButton.addTarget(self, action: #selector(theFunc), for: .touchUpInside) 
theButton.frame.name = "myParameter"

.

@objc func theFunc(sender:UIButton){ 
print(sender.frame.name)
}

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Target-Action Explained In Swift – LearnAppMaking, Target-Action is a mechanism that's used to call a certain function on a We're calling the function addTarget(_:action:for:) on button with 3 parameters: You can pass it around in your code, just like any other value or� Swift: how to add params in button.addTarget [duplicate] This question already has an answer here: Attach parameter to button.addTarget action in Swift 11 answers I have a func below, but can`t send href for func.

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Comments
  • Possible duplicate of Attach parameter to button.addTarget action in Swift
  • This wont solve the issue unless the parameter is a global varibale. If that was the case then we didnt need to pass the parameter itself. Selector can only provide the caller as sender. Nothing more.
  • @kandelvijaya What issue are you referring to? OP didn't mention any. Anyway, it's possible OP wants to call myFunc2 with string X when button1 is tapped, and myFunc2 with string Y when button2 is tapped. So there is nothing wrong with this design.