あなたは気づかれました！iOS 14.5のアプリ追跡の透明性（ATT）

IOS 14.5が最近リリースされ、少し前にAppleは、このバージョンのOS以降、IDFAにアクセスできるAppTrackingTransparencyフレームワークをサポートする必要があることを開発者に警告しました。

IDFA (The Device Identifier For Advertisers)  —   , . . .

, , :

Zeroed out IDFA: 00000000-0000-0000-0000-000000000000

Apple AppTrackingTransparency, 26 , . , .

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AppsFlyer, 40 % IDFA. , , , .

Apple: https://developer.apple.com/design/human-interface-guidelines/ios/app-architecture/accessing-user-data/

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, . , , ; Win-win, . , IDFA.

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AppTrackingTransparency . info.plist :

<key>NSUserTrackingUsageDescription</key>
<string>      ?   ,           .</string>
      
      

        
        
        
      

    
        
        
        
      
      

        
        
        
      

    
    

, !

. iOS 14.5, , .

private func requestTrackingAuthorization() {
    guard #available(iOS 14, *) else { return }
    ATTrackingManager.requestTrackingAuthorization { _ in
        DispatchQueue.main.async { [weak self] in
            // self?.router.close() or nothing to do
        }
    }
}
      
      

        
        
        
      

    
        
        
        
      
      

        
        
        
      

    
    

didFinishLaunchingWithOptions.

import AppTrackingTransparency
      
      

        
        
        
      

    
        
        
        
      
      

        
        
        
      

    
    

. .

, , . AuthorizationStatus, requestTrackingAuthorization.

private func requestTrackingAuthorization() {
    guard #available(iOS 14, *) else { return }
    ATTrackingManager.requestTrackingAuthorization { status in
        DispatchQueue.main.async {
            switch status {
            case .authorized:
                let idfa = ASIdentifierManager.shared().advertisingIdentifier
                print("  . IDFA: ", idfa)
            case .denied, .restricted:
                print("  .")
            case .notDetermined:
                print("      .")
            @unknown default:
                break
            }
        }
    }
}
      
      

        
        
        
      

    
        
        
        
      
      

        
        
        
      

    
    

• requestTrackingAuthorization(completionHandler:) .notDetermined. .

  
  
  
  
  

• , . , UI.

  
  
  
  
  

, , .denied .restricted. , , IDFA, , . , :

func goToAppSettings() {
    guard let url = URL(string: UIApplication.openSettingsURLString),
          UIApplication.shared.canOpenURL(url)
    else {
        return
    }
    UIApplication.shared.open(url, options: [:], completionHandler: nil)
}
      
      

        
        
        
      

    
        
        
        
      
      

        
        
        
      

    
    

. ATT? !