Highlighting a button that gets pressed and unhighlighting the non pressed buttons SWIFT

user_13375049 0
Viewed 252

I have three buttons that connect to the same IBAction. They all have their own out looks. I found out how to make the button become highlighted when they are pressed and unhighlighted when the user presses another button. Is their a better way to write the code? Here is what I am using:

@IBAction func tipChanged(_ sender: UIButton) {
    zeroPCTButton.isSelected = false 
    tenPCTButton.isSelected = false 
    twentyPCTButton.isSelected = false 
    sender.isSelected = true
}

The reason why I am asking is because I could make an application that has a thousand buttons and I don't want to brute force statements a thousands times

highlight uibutton swift ios
2 Answers

We can unhighlight the non pressed UIButton in the following way, 

@IBAction func buttonAction(_ sender: Any) {

        let the_tag = (sender as AnyObject).tag;
        let button = self.view.viewWithTag(the_tag!) as? UIButton
        button?.isSelected = true
        button?.backgroundColor = UIColor.white
        button?.setTitleColor(UIColor.black, for: .normal)

        // Create a list of all tags
        let allButtonTags = [1, 2, 3, 4, 5]
        let currentButtonTag = (sender as AnyObject).tag

           allButtonTags.filter { $0 != currentButtonTag }.forEach { tag in
               if let button = self.view.viewWithTag(tag) as? UIButton {
                   // Deselect/Disable these buttons
                   button.backgroundColor = #colorLiteral(red: 0.80803, green: 0.803803, blue: 0.805803, alpha: 1)
                   button.setTitleColor(UIColor.darkGray, for: .normal)
                   button.isSelected = false

               }
           }
    }
user_95332270

Let's Imagine you have 1000 buttons, You need to Implement some loop to do all the action related Button (Create,Add constraints, click events).Create UIButton Array for store your buttons.

var buttons:[UIButton] = []

Add buttons to this array when you create buttons

for buttonIndex in 1...1000 {
    // your other stuff to create, add constraints to button
    button.tag = buttonIndex
    buttons.append(button)
}

Now you can easily achieve your object.

@IBAction func tipChanged(_ sender: UIButton) {
    buttons.forEach({$0.isSelected = $0.tag == sender.tag})
    view.layoutIfNeeded()
}
user_63108650
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