通过URL方案打开完全退出的应用未在iOS中从postNotificationName调用该函数

Question

Here I have set the code for URL scheme:

func application(application: UIApplication, openURL url: NSURL, sourceApplication: String?, annotation: AnyObject) -> Bool {
    if let userUrl = String(url) as String? {
        print("\(userUrl)")
        if (userUrl == "count://fromClipBoard") {
            NSNotificationCenter.defaultCenter().postNotificationName("com.getContentFromClipBoard", object: self)
        }
    }
    return false
}

And add the following code to my ViewController :

override func viewWillAppear(animated: Bool) {
    super.viewWillAppear(animated)

    NSNotificationCenter.defaultCenter().addObserver(self, selector: "setContentFromClipBoard", name: "com.getContentFromClipBoard", object: nil)

    //............
}

func setContentFromClipBoard() {
    tv.text = "WAHAHA"

    if let clipBoard = UIPasteboard.generalPasteboard().string {
        tv.text = clipBoard
    }
}

And when my app is not fully quitted, com.getContentFromClipBoard called well and tv.text become clipBoard .

However, when I fully quit the app and then use this URL scheme, the com.getContentFromClipBoard isn't get called and tv.text remain empty.

So how can I fix it? Thanks!

Answer 1

Fixed by checking UIApplicationLaunchOptionsURLKey too inside didFinishLaunchingWithOptions .

(Delaying is waiting the view to load)

func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool {
    if let userUrl = launchOptions?[UIApplicationLaunchOptionsURLKey] as? NSURL {
        dispatch_after(dispatch_time(DISPATCH_TIME_NOW, Int64(2 * Double(NSEC_PER_SEC))), dispatch_get_main_queue(), {
            if (userUrl.absoluteString == "count://fromClipBoard") {
                NSNotificationCenter.defaultCenter().postNotificationName("com.getContentFromClipBoard", object: self)
            }
        })
    }
}