### Pick Phone Contact

Source: https://github.com/tunaiku/fluttercontactpicker/blob/master/README.md

Use this snippet to grab a phone contact using the OS's native contact picker. Ensure the fluttercontactpicker package is imported.

```dart
final PhoneContact contact =
    await FlutterContactPicker.pickPhoneContact();
```

--------------------------------

### Pick Full Contact (Android)

Source: https://github.com/tunaiku/fluttercontactpicker/blob/master/README.md

This snippet allows picking a full contact on Android devices. Note that iOS does not support this functionality directly through the ContactPicker API.

```dart
final FullContact contact =
    await FlutterContactPicker.pickFullContact();
```

--------------------------------

### Register Flutter Service Worker

Source: https://github.com/tunaiku/fluttercontactpicker/blob/master/example/web/index.html

Register the Flutter service worker when the 'flutter-first-frame' event is detected. This ensures the service worker is ready before the application fully initializes.

```javascript
if ('serviceWorker' in navigator) {
  window.addEventListener('flutter-first-frame', function () {
    navigator.serviceWorker.register('flutter_service_worker.js');
  });
}
```

=== COMPLETE CONTENT === This response contains all available snippets from this library. No additional content exists. Do not make further requests.