special characters not being encoded properly inside URLQueryItems
<p>I need to create firebase deep links in my app to share them on different platforms using UIActivityViewController .
In order to create theses links, Im using the following code with URLQueryItem to get the url I will share to others apps : </p>

<pre><code>func createURLWithComponents(EventToUrl: Event) -&gt; URL? {

    var urlComponents = URLComponents()
    urlComponents.scheme = "https"
    urlComponents.host = "www.example.com"
    urlComponents.path = "/"

    // add params
    let id = URLQueryItem(name: "id", value: EventToUrl.eventID)

    print(EventToUrl.name)
    let name = URLQueryItem(name: "name", value: EventToUrl.name)
    print(name.description)
    print(name.value)
    let photo = URLQueryItem(name: "photo", value:  EventToUrl.photoUrl)
    let created = URLQueryItem(name: "created", value: EventToUrl.creationDate )
    let participants = URLQueryItem(name: "participants", value: String(EventToUrl.Participants.count) )
    let place = URLQueryItem(name: "place", value: EventToUrl.Places[0].name)
    let time = URLQueryItem(name: "time", value: EventToUrl.time[0].TimestampString)
    urlComponents.queryItems = [id, name, photo, created, participants , place , time]

    let dynamicLinkDomain : String = "***.app.goo.gl"
    var deepLink = URLComponents()
    deepLink.scheme = "https"
    deepLink.host = dynamicLinkDomain
    deepLink.path = "/"

    let link = URLQueryItem(name: "link", value:  urlComponents.url?.absoluteString)
    let apn = URLQueryItem(name: "apn", value: "***" )
    let ibi = URLQueryItem(name: "ibi", value: "***" )
    let d = URLQueryItem(name: "d", value: "1")
    deepLink.queryItems = [link, apn, ibi, d]
    print(deepLink.url?.absoluteString)
    print(deepLink.url)

    return deepLink.url
}
</code></pre>

<p>Here is my link when I send him : </p>

<pre><code>https://***.app.goo.gl/?link=https://www.example.com/?id%3D-KZYfNRCXdSqUG72FmEQ%26name%3Djeremie's%2520Event%26photo%3D%26created%3D%26participants%3D1%26place%3DLa%2520Piazza%26time%3D1482362284.50304&amp;apn=***&amp;ibi=***&amp;d=1
</code></pre>

<p>https://<strong><em>.app.goo.gl/?link=<a href="https://www.example.com/?id%3D-KZYfNRCXdSqUG72FmEQ%26name%3Djeremie" rel="noreferrer">https://www.example.com/?id%3D-KZYfNRCXdSqUG72FmEQ%26name%3Djeremie</a>'s%2520Event%26photo%3D%26created%3D%26participants%3D1%26place%3DLa%2520Piazza%26time%3D1482362284.50304&amp;apn=</em></strong>&amp;ibi=***&amp;d=1</p>

<p>As you can see ' if the event name is composed with " ' " character (Jeremie's event) , the URLQueryItem doesn't properly encode this character (in my android app , system function transform it to "'" --> %27) 
How Can I encode it? 
PS : I try with <code>addingPercentEncoding(withAllowedCharacters: .urlFragmentAllowed)</code> without sucess...
Thanks for your help!</p>