app_tracking_transparency 2.0.0+1

This Flutter plugin allows you to display ios tracking authorization dialogue and request permission to collect data.

example/lib/main.dart

import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
import 'package:app_tracking_transparency/app_tracking_transparency.dart';

void main() {
  runApp(MaterialApp(home: HomePage()));
}

class HomePage extends StatefulWidget {
  @override
  _HomePageState createState() => _HomePageState();
}

class _HomePageState extends State<HomePage> {
  String _authStatus = 'Unknown';

  @override
  void initState() {
    super.initState();
    // Can't show a dialog in initState, delaying initialization
    WidgetsBinding.instance!.addPostFrameCallback((_) => initPlugin());
  }

  // Platform messages are asynchronous, so we initialize in an async method.
  Future<void> initPlugin() async {
    // Platform messages may fail, so we use a try/catch PlatformException.
    try {
      final TrackingStatus status =
          await AppTrackingTransparency.trackingAuthorizationStatus;
      setState(() => _authStatus = '$status');
      // If the system can show an authorization request dialog
      if (status == TrackingStatus.notDetermined) {
        // Show a custom explainer dialog before the system dialog
        if (await showCustomTrackingDialog(context)) {
          // Wait for dialog popping animation
          await Future.delayed(const Duration(milliseconds: 200));
          // Request system's tracking authorization dialog
          final TrackingStatus status =
              await AppTrackingTransparency.requestTrackingAuthorization();
          setState(() => _authStatus = '$status');
        }
      }
    } on PlatformException {
      setState(() => _authStatus = 'PlatformException was thrown');
    }

    final uuid = await AppTrackingTransparency.getAdvertisingIdentifier();
    print("UUID: $uuid");
  }

  Future<bool> showCustomTrackingDialog(BuildContext context) async =>
      await showDialog<bool>(
        context: context,
        builder: (context) => AlertDialog(
          title: const Text('Dear User'),
          content: const Text(
            'We care about your privacy and data security. We keep this app free by showing ads. '
            'Can we continue to use your data to tailor ads for you?\n\nYou can change your choice anytime in the app settings. '
            'Our partners will collect data and use a unique identifier on your device to show you ads.',
          ),
          actions: [
            TextButton(
              onPressed: () => Navigator.pop(context, false),
              child: const Text("I'll decide later"),
            ),
            TextButton(
              onPressed: () => Navigator.pop(context, true),
              child: const Text('Allow tracking'),
            ),
          ],
        ),
      ) ??
      false;

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: const Text('App Tracking Transparency Example'),
      ),
      body: Center(
        child: Text('Tracking status: $_authStatus\n'),
      ),
    );
  }
}