ios - WhatsApp NSURL returning nil When sharing text - Swift -

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i'm trying share text whatsapp nsurl returning nil text encoded right ! take @ code :

var msg : nsstring = "to world of none"; var titlewithoutspace = msg.stringbyaddingpercentescapesusingencoding(nsutf8stringencoding) var urlwhats = nsstring(string: "whatsapp://send?text=\(titlewithoutspace)") println(urlwhats) var whatsappurl = nsurl(string: urlwhats string) println(whatsappurl)

when printing result string equal : 

whatsapp://send?text=optional("to%20the%20world%20of%20none")

and whatsappurl returning nil : 

nil

stringbyaddingpercentescapesusingencoding: returns optional string that's why urlwhats contains optional(""). avoid need unwrap optional : 

var msg: nsstring = "to world of none"; var titlewithoutspace = msg.stringbyaddingpercentescapesusingencoding(nsutf8stringencoding) if let titlewithoutspace = titlewithoutspace {     var urlwhats = nsstring(string: "whatsapp://send?text=\(titlewithoutspace)")     var whatsappurl = nsurl(string: urlwhats string)     println(whatsappurl) } else {     // unwrapping failed because titlewithoutspace nil (might because stringbyaddingpercentescapesusingencoding failed). }

besides suggest use string type directly since nsstring useless there (except stringbyadding…) : 

var msg: nsstring = "to world of none"; var titlewithoutspace = msg.stringbyaddingpercentescapesusingencoding(nsutf8stringencoding) if let titlewithoutspace = titlewithoutspace {     var urlwhats = "whatsapp://send?text=\(titlewithoutspace)"     var whatsappurl = nsurl(string: urlwhats)     println(whatsappurl) } else {     // unwrapping failed because titlewithoutspace nil (might because stringbyaddingpercentescapesusingencoding failed). }

also please note nsurl(string:) may fail returns optional nsurl object. use might need unwrap did titlewithoutspace.


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