Swift: How to open a new app when UIButton is tapped

Question

I have an app and when a uibutton is clicked, I want to open another app that is already installed (i.e. Waze). How can I do such? Big thanks.

Answer 1

Try this. For example you want to open an Instagram app:

    var instagramHooks = "instagram://user?username=johndoe"
    var instagramUrl = NSURL(string: instagramHooks)
    if UIApplication.sharedApplication().canOpenURL(instagramUrl!)
    {  
        UIApplication.sharedApplication().openURL(instagramUrl!)

     } else {
        //redirect to safari because the user doesn't have Instagram
        UIApplication.sharedApplication().openURL(NSURL(string: "http://instagram.com/")!)
    }