CODEWITHSUNDEEP
swiftuibutton
moosgrn
moosgrn

Reputation: 379

Two "Different" Buttons from Single UIButton?

I've got a basic array of buttons that I'd like to change functionality and look based on whether the user has pressed a "shift"-type separate button. 

@IBOutlet var shiftBtn: UIButton!
@IBAction func shiftBtn(_ sender: UIButton) {
      changeLookOfsomeBtns() /* ?? */
    }

@IBOutlet var someBtns: [UIButton]!
@IBAction func someBtns(_ sender: UIButton) {
      if shiftBtn.selected == true {
          doSomething()
      } else if shiftBtn.selected == false {
          doSomethingElse()

}

Is this the right approach? I'm stuck on what technique to apply to change both the function options and image for someBtns.

Thanks!

Upvotes: 0

Views: 36

Answers (1)

Sweeper
Sweeper

Reputation: 270770

Here:

if shiftBtn.selected == true {
    doSomething()
} else if shiftBtn.selected == false {
    doSomethingElse()
}

You seem to be checking a (non-existent) property on a button to decide what to do. In general, you shouldn't make decisions based on a button's property. Instead, you should have a separate property (let's call it shifted) that indicates whether the shift button is activated or not.

var shifted = false {
    didSet {
        if shifted {
            changeSomeButtonsToShiftedAppearance()
        } else {
            changeSomeButtonsToNormalAppearance()
        }
    }
}

@IBAction func someBtns(_ sender: UIButton) {
      if shifted {
          doSomething()
      } else {
          doSomethingElse()
}

And you set this property when shift is pressed:

@IBAction func shiftBtn(_ sender: UIButton) {
    shifted = !shifted
}

Upvotes: 3

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