fix: extract NSURL from launch options (#394)

Author: granbestiapop

Sources/Segment/Plugins/Platforms/iOS/iOSLifecycleEvents.swift

@@ -56,7 +56,7 @@ class iOSLifecycleEvents: PlatformPlugin, iOSLifecycle {
         }
 
         let sourceApp: String = launchOptions?[UIApplication.LaunchOptionsKey.sourceApplication] as? String ?? ""
-        let url: String = launchOptions?[UIApplication.LaunchOptionsKey.url] as? String ?? ""
+        let url = urlFrom(launchOptions)
 
         analytics?.track(name: "Application Opened", properties: [
             "from_background": false,
@@ -101,6 +101,16 @@ class iOSLifecycleEvents: PlatformPlugin, iOSLifecycle {
         }
         analytics?.track(name: "Application Foregrounded")
     }
+    
+    private func urlFrom(_ launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> String {
+        if let url = launchOptions?[UIApplication.LaunchOptionsKey.url] as? String {
+            return url
+        }
+        if let url = launchOptions?[UIApplication.LaunchOptionsKey.url] as? NSURL, let rawUrl =  url.absoluteString  {
+            return rawUrl
+        }
+        return ""
+    }
 }
 
 #endif