App Tracking Transparency Framework in Swift and iOS 14.5

Apple has begun rejecting app submissions that do not follow its updated privacy policies regarding device fingerprinting and user tracking after iOS 14.5 release.

You must use the AppTrackingTransparency framework if your app collects data about end users and shares it with other companies (3rd party framework) for purposes of tracking across apps and web sites.

Note :- AppTrackingTransparency framework only available from Xcode 12 and iOS 14.

Follow the Steps

1. Set up a NSUserTrackingUsageDescription to display a system-permission alert request for your app installed on end-user devices.

• Select your project’s Info.plist file in Xcode Project navigator.
• Add key Privacy — Tracking Usage Description. Keep the description text short and specific. You don’t need to include your app name because the system already identifies your app.

<key>NSUserTrackingUsageDescription</key>
<string>This identifier will be used to deliver personalized ads to you.</string>

2. Call requestTrackingAuthorization(completionHandler:) to present the app-tracking authorization request to the end user.

One-time request to authorize or deny access to app-related data. It doesn’t prompt again unless the user uninstalls and then reinstalls the app on the device.

Import the AppTrackingTransparencyand then request for the authentication popup as shown below.

import AppTrackingTransparency
func requestPermission() {
    if #available(iOS 14, *) {
        ATTrackingManager.requestTrackingAuthorization { status in
            switch status {
            case .authorized:
                // Tracking authorization dialog was shown
                // and we are authorized
                print("Authorized")
                
                // Now that we are authorized we can get the IDFA
                            print(ASIdentifierManager.shared().advertisingIdentifier)
            case .denied:
                // Tracking authorization dialog was
                // shown and permission is denied
                print("Denied")
            case .notDetermined:
                // Tracking authorization dialog has not been shown
                print("Not Determined")
            case .restricted:
                print("Restricted")
            @unknown default:
                print("Unknown")
            }
        }
    }
}

3. Check the authentication permission status using trackingAuthorizationStatus

Authentication Status :-

• authorized
• denied
• notDetermined
• restricted

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