How to Properly Handle Deep Linking with Custom URL Schemes in Objective-C?
I'm working on a project and hit a roadblock. I'm working on a personal project and I'm trying to implement deep linking in my iOS app using a custom URL scheme, but I'm running into some issues with the handling of incoming URLs. Specifically, the app isn't always responding to the URL I registered in the Info.plist. For instance, when using a URL like `myapp://view/item?id=123`, I'm not consistently able to parse the `id` parameter in the `application:openURL:options:` method of my AppDelegate. Here's my code snippet: ```objective-c - (BOOL)application:(UIApplication *)app openURL:(NSURL *)url options:(NSDictionary<UIApplicationOpenURLOptionsKey,id> *)options { if ([[url scheme] isEqualToString:@"myapp"]) { NSString *itemId = [self parseIDFromURL:url]; if (itemId) { // Navigate to the appropriate view controller [self navigateToItemWithID:itemId]; return YES; } } return NO; } - (NSString *)parseIDFromURL:(NSURL *)url { NSURLComponents *components = [NSURLComponents componentsWithURL:url resolvingAgainstBaseURL:NO]; for (NSURLQueryItem *item in components.queryItems) { if ([item.name isEqualToString:@"id"]) { return item.value; } } return nil; } ``` I've also made sure to set the URL types correctly in Info.plist: ```xml <key>CFBundleURLTypes</key> <array> <dict> <key>CFBundleURLSchemes</key> <array> <string>myapp</string> </array> </dict> </array> ``` Despite all this, sometimes when I try to open the app from Safari or another app using the URL scheme, the `openURL` method doesn't get called at all, and I get nothing in the logs. I've tested on both iOS 14 and 15, and the behavior is inconsistent. Am I missing something in the configuration or the URL handling logic? Any insights would be greatly appreciated! This is part of a larger application I'm building. What's the best practice here? I'm working on a API that needs to handle this.