App Tracking Transparency

Deepak Kumar

20 July 2022

The App Tracking Transparency framework is used to present a permission request alert.

The permission totally depends on the user whether the user wants to allow or deny it.

If the user denies permission the app cannot collect the user’s data. And if it allows it then the app can collect the data.

This framework presents the app tracking authorization request to the user.

ATT is the short form of App Tracking Transparency

ATT manager provides the functionality of authorization request and handling.

What is `NSUserTrackingUsageDescription`

The UsageDescription is used to explain the reason why your data is needed is called Usages Description.

Tracking Authorization Status

App Tracking Transparency status completely handled by the user.

Use this property to check the authorization request.

Tracking Authorization Request

The alert that asks for permission to access data is known as an Authorization request alert.

Let’s start code

Info.plist

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

1 2	<key>NSUserTrackingUsageDescription</key> <string>This identifier will be used to deliver personalized ads to you.</string>

Use the above key and value in info.plist file to access permission.

ViewController

import UIKit
import AppTrackingTransparency
import AdSupport

class ViewController: UIViewController {

    override func viewDidLoad() {
        super.viewDidLoad()
        DispatchQueue.main.asyncAfter(deadline: .now() + 1){
            self.requestPermission()
        }
        // Do any additional setup after loading the view.
    }
    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")
                }
            }
        } else {
            // Fallback on earlier versions
        }
    }


}

import UIKit

import AppTrackingTransparency

import AdSupport

class ViewController: UIViewController {

override func viewDidLoad() {

super.viewDidLoad()

DispatchQueue.main.asyncAfter(deadline: .now() + 1){

self.requestPermission()

}

// Do any additional setup after loading the view.

}

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")

}

} else {

// Fallback on earlier versions

}

Let’s see the output images

Conclusion:-

In this blog, we discussed the working of AppTrackingTransparency in-app.

I hope this blog will help you to understand the functionality.

Thanks for reading!!!

What is NSUserTrackingUsageDescription