how to extends multiple classes in iOS - ios

Question

I am developing an application in a flutter, and I want to extend one library class in AppDelegate.swift file. As iOS is not supporting multiple inheritances I can't extend the library class and FlutterAppDelegate class together.
Can someone help me with this? Is there any other way to achieve this kind of function?
Here is some code snippet for ios
App's AppDelegate.swift
#UIApplicationMain
#objc class AppDelegate: FlutterAppDelegate {
override func application(
_ application: UIApplication,
didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?
) -> Bool {
GeneratedPluginRegistrant.register(with: self)
return true
}
}
This is my library's header class which I also want to extends to AppDelegate
#import <UIKit/UIKit.h>
#interface AppDelegateSEG : UIResponder <UIApplicationDelegate>
#property(strong, nonatomic) UIWindow *window;
#end
This is my AppDelegateSEG.m
// AppDelegateSEG.m
// ObjcPodsSample
//
//
#import "AppDelegateSEG.h"
#import "SEGAppsFlyerIntegrationFactory.h"
#import <AppTrackingTransparency/AppTrackingTransparency.h>
#interface AppDelegateSEG ()
#end
#interface AppDelegateSEG ()<SEGAppsFlyerLibDelegate>
#end
#implementation AppDelegateSEG
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
// For ApsFlyer debug logs
[AppsFlyerLib shared].isDebug = YES;
// [[AppsFlyerLib shared] waitForATTUserAutxhorizationWithTimeoutInterval:60];
/*
Based on your needs you can either pass a delegate to process deferred
and direct deeplinking callbacks or disregard them.
If you choose to use the delegate, see extension to this class below
*/
// SEGAppsFlyerIntegrationFactory* factoryNoDelegate = [SEGAppsFlyerIntegrationFactory instance];
SEGAppsFlyerIntegrationFactory* factoryWithDelegate = [SEGAppsFlyerIntegrationFactory createWithLaunchDelegate:self];
SEGAnalyticsConfiguration *config = [SEGAnalyticsConfiguration configurationWithWriteKey:#"********"];
// [config use:factoryNoDelegate];
[config use:factoryWithDelegate]; // use this if you want to get conversion data in the app. Read more in the integration guide
config.enableAdvertisingTracking = YES; //OPTIONAL
config.trackApplicationLifecycleEvents = YES; //OPTIONAL
config.trackDeepLinks = YES; //OPTIONAL
config.trackPushNotifications = YES; //OPTIONAL
[SEGAnalytics debug:YES]; //OPTIONAL
[SEGAnalytics setupWithConfiguration:config];
NSLog(#"before delay");
NSString *userId = [[SEGAnalytics sharedAnalytics] getAnonymousId];
NSLog(#"----%#", userId);
[[SEGAnalytics sharedAnalytics] identify:(userId)];
// [[SEGAnalytics sharedAnalytics] identify:userId];
return YES;
}
- (void)applicationDidBecomeActive:(UIApplication *)application {
// Code below is to collect IDFA. Read more here - https://support.appsflyer.com/hc/en-us/articles/360011451918-iOS-SDK-V6-beta-integration-guide-for-developers#integration-34-support-apptrackingtransparency-att
// if (#available(iOS 14, *)) {
// [ATTrackingManager requestTrackingAuthorizationWithCompletionHandler:^(ATTrackingManagerAuthorizationStatus status) {
// //....
// }];
// }
}
#pragma mark - UISceneSession lifecycle
- (UISceneConfiguration *)application:(UIApplication *)application configurationForConnectingSceneSession:(UISceneSession *)connectingSceneSession options:(UISceneConnectionOptions *)options {
// Called when a new scene session is being created.
// Use this method to select a configuration to create the new scene with.
return [[UISceneConfiguration alloc] initWithName:#"Default Configuration" sessionRole:connectingSceneSession.role];
}
- (void)application:(UIApplication *)application didDiscardSceneSessions:(NSSet<UISceneSession *> *)sceneSessions {
// Called when the user discards a scene session.
// If any sessions were discarded while the application was not running, this will be called shortly after application:didFinishLaunchingWithOptions.
// Use this method to release any resources that were specific to the discarded scenes, as they will not return.
}
-(void)onConversionDataFail:(NSError *) error {
NSLog(#"%#",error);
}
-(void)onConversionDataSuccess:(NSDictionary*) installData {
id status = [installData objectForKey:#"af_status"];
if([status isEqualToString:#"Non-organic"]) {
id sourceID = [installData objectForKey:#"media_source"];
id campaign = [installData objectForKey:#"campaign"];
NSLog(#"This is a none organic install. Media source: %# Campaign: %#",sourceID,campaign);
} else if([status isEqualToString:#"Organic"]) {
NSLog(#"This is an organic install.");
}
}
- (void) onAppOpenAttribution:(NSDictionary*) attributionData {
NSLog(#"%#",attributionData);
}
- (void) onAppOpenAttributionFailure:(NSError *)error {
NSLog(#"%#",error);
}
#end

Answer 1

Looks like you need only setup part, declared in didFinishLaunchingWithOptions. You need to create some other class in your PodsSample project where you can handle all setup. So when you need some necessary configs for AppsFlyer or SEGAnalytics, from anywhere you can just call this static (for example) method from your Pod project.
AppConfigProvider.h
#interface AppConfigProvider : NSObject
+ (void)setupConfig
#end
AppConfigProvider.m
#import "SEGAppsFlyerIntegrationFactory.h"
#import <AppTrackingTransparency/AppTrackingTransparency.h>
#implementation AppConfigProvider
+ (void)setupConfig {
// For ApsFlyer debug logs
[AppsFlyerLib shared].isDebug = YES;
// [[AppsFlyerLib shared] waitForATTUserAutxhorizationWithTimeoutInterval:60];
/*
Based on your needs you can either pass a delegate to process deferred
and direct deeplinking callbacks or disregard them.
If you choose to use the delegate, see extension to this class below
*/
// SEGAppsFlyerIntegrationFactory* factoryNoDelegate = [SEGAppsFlyerIntegrationFactory instance];
SEGAppsFlyerIntegrationFactory* factoryWithDelegate = [SEGAppsFlyerIntegrationFactory createWithLaunchDelegate:self];
SEGAnalyticsConfiguration *config = [SEGAnalyticsConfiguration configurationWithWriteKey:#"********"];
// [config use:factoryNoDelegate];
[config use:factoryWithDelegate]; // use this if you want to get conversion data in the app. Read more in the integration guide
config.enableAdvertisingTracking = YES; //OPTIONAL
config.trackApplicationLifecycleEvents = YES; //OPTIONAL
config.trackDeepLinks = YES; //OPTIONAL
config.trackPushNotifications = YES; //OPTIONAL
[SEGAnalytics debug:YES]; //OPTIONAL
[SEGAnalytics setupWithConfiguration:config];
NSLog(#"before delay");
NSString *userId = [[SEGAnalytics sharedAnalytics] getAnonymousId];
NSLog(#"----%#", userId);
[[SEGAnalytics sharedAnalytics] identify:(userId)];
// [[SEGAnalytics sharedAnalytics] identify:userId];
}
#end
Something like this. Also you'll be need to add AppConfigProvider to public headers of your library to be visible outside