Swift 3.0 String转utf-8 url

废弃

1. leturlString="iosamap://navi?sourceApplication=app名&backScheme=iosamap://&lat=\(self.centerLat)&lon=\(self.centerLng)&dev=0&style=2"
2. leturl=NSURL(string:urlString.stringByAddingPercentEscapesUsingEncoding(NSUTF8StringEncoding)!)

最新

let unsafeP=urlString.addingPercentEncoding(withAllowedCharacters: NSCharacterSet(charactersIn:"`#%^{}\"[]|\\<> ").inverted)

UIApplication.shared.open(URL(string:unsafeP!)!,options: [:],

completionHandler: {

(success) in

print("Open \(success)")

})