问题
I am trying to setup Firebase Dynamic Links in my iOS project using Swift 2.3.
When I add this function in the AppDelegate (as reported at the bottom of this page), I get the error:
Unknown attribute 'escaping'
func application(_ application: UIApplication, continue userActivity: NSUserActivity, restorationHandler: @escaping ([Any]?) -> Void) -> Bool {
guard let dynamicLinks = FIRDynamicLinks.dynamicLinks() else {
return false
}
let handled = dynamicLinks.handleUniversalLink(userActivity.webpageURL!) {
(dynamiclink, error) in
// ...
}
return handled
}
any idea which is the correct syntax for Swift 2.3?
回答1:
The method which you are using is for swift3, here is the method for swift2.3
func application(application: UIApplication, continueUserActivity userActivity: NSUserActivity, restorationHandler: ([AnyObject]?) -> Void) -> Bool {
}
回答2:
if you want to add restriction on deep link then implement bellow method like this this delegate method call first.
func application(application: UIApplication, willContinueUserActivityWithType userActivityType: String) -> Bool {
return userActivityType == NSUserActivityTypeBrowsingWeb ? true : false
}
if you want to link which user have click or if you have multiple deep link in single app then want to identify then you can get like this.
func application(application: UIApplication, continueUserActivity userActivity: NSUserActivity, restorationHandler: ([AnyObject]?) -> Void) -> Bool{
// pass the url to the handle deep link call
print(userActivity.webpageURL)
//NSURLComponents
return true
}
来源：https://stackoverflow.com/questions/40673319/ios-swift-2-3-correct-syntax-for-application-restorationhandler