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iosfunctionbuttonswift3ibaction

How to use function to call button instead of pressing it (swift3)

I want to be able to call function start within function use without hitting the action button for start. I know simple thing to do is just put print("a") in use. But I am using this as a simple example because I have a more complex problem in mind. 

   @IBAction func start(_ sender: Any) {
print("a")}


fun use() {
}

viewdidload() {
use()
}
Solution

  • Create an IBOutlet for your button:

    @IBOutlet weak var button: UIButton!

    Then simply, use this code to trigger its action:

    button.sendActions(for: .touchUpInside)