How to check validity of URL in Swift?

Question

Trying to make an app launch the default browser to a URL, but only if the URL entered is valid, otherwise it displays a message saying the URL is invalid.

How would

Answer 1

This accepted answer doesn't work in my case with wrong url without data https://debug-cdn.checkit4team.com/5/image/Y29tbW9uL2RlZmF1bHRfYXZhdGFyLnBuZw==

So I write extension to solve

extension String {
    var verifyUrl: Bool {
        get {
            let url = URL(string: self)

            if url == nil || NSData(contentsOf: url!) == nil {
                return false
            } else {
                return true
            }
        }
    }
}

Use it:

if string. verifyUrl {
    // do something
}

Hope this help!