Open a users twitter profile page from iOS app

Question

I am trying to deep link from my app to a user\'s twitter profile on the native twitter app. I have added schema rules for twitter and the following code:

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Answer 1

Use this for twitter profile share, Swift 4:

    let screenName =  "NJMINISTRIESINC"
    let appURL = URL(string: "twitter://user?screen_name=\(screenName)")!
    let webURL = URL(string: "https://twitter.com/\(screenName)")!

    if UIApplication.shared.canOpenURL(appURL as URL) {
        if #available(iOS 10.0, *) {
            UIApplication.shared.open(appURL)
        } else {
            UIApplication.shared.openURL(appURL)
        }
    } else {
        //redirect to safari because the user doesn't have Instagram
        if #available(iOS 10.0, *) {
            UIApplication.shared.open(webURL)
        } else {
            UIApplication.shared.openURL(webURL)
        }
    }