iOS handle dynamic link while app is inactive - ios

Question

My ApplicationDelegate:
let customURLScheme = "dlscheme"
func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool {
FIROptions.default().deepLinkURLScheme = self.customURLScheme
FIRApp.configure()
return true
}
func application(_ app: UIApplication, open url: URL, options: [UIApplicationOpenURLOptionsKey : Any]) -> Bool {
return application(app, open: url, sourceApplication: nil, annotation: [:])
}
func application(_ application: UIApplication, open url: URL, sourceApplication: String?, annotation: Any) -> Bool {
let dynamicLink = FIRDynamicLinks.dynamicLinks()?.dynamicLink(fromCustomSchemeURL: url)
if let dynamicLink = dynamicLink {
let message = generateDynamicLinkMessage(dynamicLink)
if #available(iOS 8.0, *) {
showDeepLinkAlertView(withMessage: message)
}
return true
}
if #available(iOS 8.0, *) {
showDeepLinkAlertView(withMessage: "openURL:\n\(url)")
} else {
}
return false
}
#available(iOS 8.0, *)
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
let message = self.generateDynamicLinkMessage(dynamiclink!)
self.showDeepLinkAlertView(withMessage: message)
}
return handled
}
func generateDynamicLinkMessage(_ dynamicLink: FIRDynamicLink) -> String {
let matchConfidence: String
if dynamicLink.matchConfidence == .weak {
matchConfidence = "Weak"
} else {
matchConfidence = "Strong"
}
let message = "App URL: \(dynamicLink.url)\nMatch Confidence: \(matchConfidence)\n"
return message
}
#available(iOS 8.0, *)
func showDeepLinkAlertView(withMessage message: String) {
let okAction = UIAlertAction.init(title: "OK", style: .default) { (action) -> Void in
print("OK")
}
let alertController = UIAlertController.init(title: "Deep-link Data", message: message, preferredStyle: .alert)
alertController.addAction(okAction)
self.window?.rootViewController?.present(alertController, animated: true, completion: nil)
}
Here is my code. I am working with firebase dynamic link, and implemented it like this tutorial:
https://firebase.google.com/docs/dynamic-links/ios
And this sample:
https://github.com/firebase/quickstart-ios/blob/master/dynamiclinks/DynamicLinksExampleSwift/AppDelegate.swift
Its working well when my app is in background. Open the app and show alert with url when I tap on dynamic link.
But in the case my app is inactive (not running), it not working. Just open the app and do nothing.
And my question: How can i handle dynamic link while app is inactive?
Sorry about my english

Answer 1

Swift 5
You can handle it in such way:
AppDelegate.swift
import Firebase
import FirebaseDynamicLinks
func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
// ... your other code here
FirebaseApp.configure()
let activityKey = NSString(string: "UIApplicationLaunchOptionsUserActivityKey")
if let userActivityDict = launchOptions?[.userActivityDictionary] as? [NSObject : AnyObject], let userActivity = userActivityDict[activityKey] as? NSUserActivity, let webPageUrl = userActivity.webpageURL {
DynamicLinks.dynamicLinks().handleUniversalLink(webPageUrl) { (dynamiclink, error) in
// do some stuff with dynamiclink
}
}
return true
}

Answer 2

I have do like this...
func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool
{
if let option = launchOptions
{
if option.keys.contains(UIApplicationLaunchOptionsKey.userActivityDictionary)
{
if let userActivityDict = option[UIApplicationLaunchOptionsKey.userActivityDictionary] as? [AnyHashable:Any]
{
if userActivityDict.keys.contains(UIApplicationLaunchOptionsKey.userActivityType)
{
if let userActivity = userActivityDict["UIApplicationLaunchOptionsUserActivityKey"] as? NSUserActivity {
if let webpageURL = userActivity.webpageURL
{
// Write your code here.
}
}
}
}
}
}
}

Answer 3

I had a problem when application(_:open:options:) wasn't called when the app was in background. The Firebase SDK swizzles methods and that was the reason.
I solved this problem by setting FirebaseAppDelegateProxyEnabled = NO in Info.plist
For more detailed information on how it works and what it affects you can read here https://firebase.google.com/docs/cloud-messaging/ios/client#method_swizzling_in