Question 67574 in IOS Swift Question posted in
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How to activate a button when a condition is met? – Ios swift

I have a button that should be activated after the user selects a photo from library or take a photo. But as long as there is no photo the button should not work.

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2

Answers


  1. 0

    UIButton has a property called isEnabled (refer to Apple Docs).

    To enable the button you can write:

    myButton.isEnabled = true

    More detailed explanation:
    First of all you need to disable the button, when the ViewController is loaded. Ideally you do this in the viewWillAppear function:

    override func viewWillAppear(_ animated: Bool) {
  myButton.isEnabled = false
  super.viewWillAppear(animated)
}

    And when the photo is loaded you can enable the button:

    func selectPhoto() {
  // your code to select the photo
  myButton.isEnabled = true
}
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  2. 0

    Before the user selects a photo from library or take a photo

    button.isEnabled = false

    After the user selects a photo from library or take a photo

    button.isEnabled = true
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