How to insert link on button

Question

Good,

how do I insert a link in a tried button below and it didn’t work.

@IBAction func urlDisplay(_ sender: AnyObject) {

    UIApplication.sharedApplication().openURL(NSURL(String:"http://www.quatenus.co.ao")!)
}

Answer 1

On Swift 4 the code would look like this:

UIApplication.shared.openURL(URL(string: "http://www.quatenus.co.ao")!)

In your code is not with error, the Xcode is only warning that there was an update in the function call (only Shared)

Answer 2

Using Swift 3 the code would look like this:

@IBAction func urlDisplay(_ sender: AnyObject) {
    let url = URL(string: "http://www.quatenus.co.ao/")!
    if UIApplication.shared.canOpenURL(url) {
        UIApplication.shared.openURL(url)
    }
}