From befd618c30f23510022d5786b933f977230c4aa9 Mon Sep 17 00:00:00 2001
From: Maurits van Beusekom <maurits@baseflow.com>
Date: Mon, 12 Oct 2020 21:41:18 +0200
Subject: [PATCH 01/13] Migrate to null safety

BREAKING CHANGE: this will introduce null safety and thus updates
the signature of several methods.
---
 .../lib/method_channel_url_launcher.dart                      | 4 ++--
 .../lib/url_launcher_platform_interface.dart                  | 4 ++--
 .../url_launcher/url_launcher_platform_interface/pubspec.yaml | 2 +-
 3 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/packages/url_launcher/url_launcher_platform_interface/lib/method_channel_url_launcher.dart b/packages/url_launcher/url_launcher_platform_interface/lib/method_channel_url_launcher.dart
index 1d66a4cc633c..c09e5e007021 100644
--- a/packages/url_launcher/url_launcher_platform_interface/lib/method_channel_url_launcher.dart
+++ b/packages/url_launcher/url_launcher_platform_interface/lib/method_channel_url_launcher.dart
@@ -13,7 +13,7 @@ const MethodChannel _channel = MethodChannel('plugins.flutter.io/url_launcher');
 /// An implementation of [UrlLauncherPlatform] that uses method channels.
 class MethodChannelUrlLauncher extends UrlLauncherPlatform {
   @override
-  Future<bool> canLaunch(String url) {
+  Future<bool?> canLaunch(String url) {
     return _channel.invokeMethod<bool>(
       'canLaunch',
       <String, Object>{'url': url},
@@ -26,7 +26,7 @@ class MethodChannelUrlLauncher extends UrlLauncherPlatform {
   }
 
   @override
-  Future<bool> launch(
+  Future<bool?> launch(
     String url, {
     required bool useSafariVC,
     required bool useWebView,
diff --git a/packages/url_launcher/url_launcher_platform_interface/lib/url_launcher_platform_interface.dart b/packages/url_launcher/url_launcher_platform_interface/lib/url_launcher_platform_interface.dart
index fae84c96f3ce..cd2fa56fc199 100644
--- a/packages/url_launcher/url_launcher_platform_interface/lib/url_launcher_platform_interface.dart
+++ b/packages/url_launcher/url_launcher_platform_interface/lib/url_launcher_platform_interface.dart
@@ -38,7 +38,7 @@ abstract class UrlLauncherPlatform extends PlatformInterface {
   }
 
   /// Returns `true` if this platform is able to launch [url].
-  Future<bool> canLaunch(String url) {
+  Future<bool?> canLaunch(String url) {
     throw UnimplementedError('canLaunch() has not been implemented.');
   }
 
@@ -46,7 +46,7 @@ abstract class UrlLauncherPlatform extends PlatformInterface {
   ///
   /// For documentation on the other arguments, see the `launch` documentation
   /// in `package:url_launcher/url_launcher.dart`.
-  Future<bool> launch(
+  Future<bool?> launch(
     String url, {
     required bool useSafariVC,
     required bool useWebView,
diff --git a/packages/url_launcher/url_launcher_platform_interface/pubspec.yaml b/packages/url_launcher/url_launcher_platform_interface/pubspec.yaml
index 823456854872..81aec6ac08e0 100644
--- a/packages/url_launcher/url_launcher_platform_interface/pubspec.yaml
+++ b/packages/url_launcher/url_launcher_platform_interface/pubspec.yaml
@@ -10,7 +10,7 @@ dependencies:
     sdk: flutter
   # TODO (mvanbeusekom): use pub.dev once 1.10.0-nullsafety released.
   plugin_platform_interface:
-    git:
+    git: 
       url: https://github.com/flutter/plugins.git
       ref: nnbd
       path: packages/plugin_platform_interface

From 98e00fd1aeb936612ac739bb52aaf3efadd8d68c Mon Sep 17 00:00:00 2001
From: Maurits van Beusekom <maurits@baseflow.com>
Date: Tue, 13 Oct 2020 10:22:18 +0200
Subject: [PATCH 02/13] canLaunch and launch should return false if value is
 null

---
 .../lib/method_channel_url_launcher.dart                      | 4 ++--
 .../lib/url_launcher_platform_interface.dart                  | 4 ++--
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/packages/url_launcher/url_launcher_platform_interface/lib/method_channel_url_launcher.dart b/packages/url_launcher/url_launcher_platform_interface/lib/method_channel_url_launcher.dart
index c09e5e007021..1d66a4cc633c 100644
--- a/packages/url_launcher/url_launcher_platform_interface/lib/method_channel_url_launcher.dart
+++ b/packages/url_launcher/url_launcher_platform_interface/lib/method_channel_url_launcher.dart
@@ -13,7 +13,7 @@ const MethodChannel _channel = MethodChannel('plugins.flutter.io/url_launcher');
 /// An implementation of [UrlLauncherPlatform] that uses method channels.
 class MethodChannelUrlLauncher extends UrlLauncherPlatform {
   @override
-  Future<bool?> canLaunch(String url) {
+  Future<bool> canLaunch(String url) {
     return _channel.invokeMethod<bool>(
       'canLaunch',
       <String, Object>{'url': url},
@@ -26,7 +26,7 @@ class MethodChannelUrlLauncher extends UrlLauncherPlatform {
   }
 
   @override
-  Future<bool?> launch(
+  Future<bool> launch(
     String url, {
     required bool useSafariVC,
     required bool useWebView,
diff --git a/packages/url_launcher/url_launcher_platform_interface/lib/url_launcher_platform_interface.dart b/packages/url_launcher/url_launcher_platform_interface/lib/url_launcher_platform_interface.dart
index cd2fa56fc199..fae84c96f3ce 100644
--- a/packages/url_launcher/url_launcher_platform_interface/lib/url_launcher_platform_interface.dart
+++ b/packages/url_launcher/url_launcher_platform_interface/lib/url_launcher_platform_interface.dart
@@ -38,7 +38,7 @@ abstract class UrlLauncherPlatform extends PlatformInterface {
   }
 
   /// Returns `true` if this platform is able to launch [url].
-  Future<bool?> canLaunch(String url) {
+  Future<bool> canLaunch(String url) {
     throw UnimplementedError('canLaunch() has not been implemented.');
   }
 
@@ -46,7 +46,7 @@ abstract class UrlLauncherPlatform extends PlatformInterface {
   ///
   /// For documentation on the other arguments, see the `launch` documentation
   /// in `package:url_launcher/url_launcher.dart`.
-  Future<bool?> launch(
+  Future<bool> launch(
     String url, {
     required bool useSafariVC,
     required bool useWebView,

From 7f5d97cf3e01ce5dd2a55fb32af7f1a72682bb3b Mon Sep 17 00:00:00 2001
From: Maurits van Beusekom <maurits@baseflow.com>
Date: Wed, 14 Oct 2020 09:07:14 +0200
Subject: [PATCH 03/13] Processed feedback on PR 3142

---
 .../url_launcher_platform_interface/pubspec.yaml             | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/packages/url_launcher/url_launcher_platform_interface/pubspec.yaml b/packages/url_launcher/url_launcher_platform_interface/pubspec.yaml
index 81aec6ac08e0..e01abe7e1dce 100644
--- a/packages/url_launcher/url_launcher_platform_interface/pubspec.yaml
+++ b/packages/url_launcher/url_launcher_platform_interface/pubspec.yaml
@@ -10,10 +10,7 @@ dependencies:
     sdk: flutter
   # TODO (mvanbeusekom): use pub.dev once 1.10.0-nullsafety released.
   plugin_platform_interface:
-    git: 
-      url: https://github.com/flutter/plugins.git
-      ref: nnbd
-      path: packages/plugin_platform_interface
+      path: ../../plugin_platform_interface
 
 dev_dependencies:
   flutter_test:

From 716d4e6ca37d60a356923a90bb6cd5c43aaf8971 Mon Sep 17 00:00:00 2001
From: Maurits van Beusekom <maurits@baseflow.com>
Date: Tue, 13 Oct 2020 12:11:54 +0200
Subject: [PATCH 04/13] Migrate to null safety

---
 .../url_launcher/url_launcher/CHANGELOG.md    |  4 ++
 .../url_launcher/example/lib/main.dart        |  4 +-
 .../url_launcher/example/pubspec.yaml         |  9 +++-
 .../url_launcher/lib/url_launcher.dart        | 47 +++++++++----------
 .../url_launcher/url_launcher/pubspec.yaml    | 22 ++++++---
 .../url_launcher/test/url_launcher_test.dart  |  7 ++-
 .../url_launcher_web/pubspec.yaml             |  8 +++-
 7 files changed, 60 insertions(+), 41 deletions(-)

diff --git a/packages/url_launcher/url_launcher/CHANGELOG.md b/packages/url_launcher/url_launcher/CHANGELOG.md
index 8a15a2b9a6b1..d1f2c1c462f4 100644
--- a/packages/url_launcher/url_launcher/CHANGELOG.md
+++ b/packages/url_launcher/url_launcher/CHANGELOG.md
@@ -1,3 +1,7 @@
+## 5.8.0-nullsafety
+
+* Migrate to null safety.
+
 ## 5.7.4
 
 * Update android compileSdkVersion to 29.
diff --git a/packages/url_launcher/url_launcher/example/lib/main.dart b/packages/url_launcher/url_launcher/example/lib/main.dart
index f7d90c4bef65..f493e6121401 100644
--- a/packages/url_launcher/url_launcher/example/lib/main.dart
+++ b/packages/url_launcher/url_launcher/example/lib/main.dart
@@ -27,7 +27,7 @@ class MyApp extends StatelessWidget {
 }
 
 class MyHomePage extends StatefulWidget {
-  MyHomePage({Key key, this.title}) : super(key: key);
+  MyHomePage({Key? key, required this.title}) : super(key: key);
   final String title;
 
   @override
@@ -35,7 +35,7 @@ class MyHomePage extends StatefulWidget {
 }
 
 class _MyHomePageState extends State<MyHomePage> {
-  Future<void> _launched;
+  late Future<void> _launched;
   String _phone = '';
 
   Future<void> _launchInBrowser(String url) async {
diff --git a/packages/url_launcher/url_launcher/example/pubspec.yaml b/packages/url_launcher/url_launcher/example/pubspec.yaml
index b48445c3a7e9..4ada0390f891 100644
--- a/packages/url_launcher/url_launcher/example/pubspec.yaml
+++ b/packages/url_launcher/url_launcher/example/pubspec.yaml
@@ -12,9 +12,14 @@ dev_dependencies:
     path: ../../../integration_test
   flutter_driver:
     sdk: flutter
-  pedantic: ^1.8.0
+  pedantic: ^1.10.0-nullsafety.1
   mockito: ^4.1.1
-  plugin_platform_interface: ^1.0.0
+  # TODO (mvanbeusekom): Update to use pub.dev once 1.10.0-nullsafety released.
+  plugin_platform_interface:
+    git: 
+      url: https://github.com/flutter/plugins.git
+      ref: nnbd
+      path: packages/plugin_platform_interface
 
 flutter:
   uses-material-design: true
diff --git a/packages/url_launcher/url_launcher/lib/url_launcher.dart b/packages/url_launcher/url_launcher/lib/url_launcher.dart
index ccc6833f0941..27bb6aba2226 100644
--- a/packages/url_launcher/url_launcher/lib/url_launcher.dart
+++ b/packages/url_launcher/url_launcher/lib/url_launcher.dart
@@ -59,16 +59,15 @@ import 'package:url_launcher_platform_interface/url_launcher_platform_interface.
 /// is set to true and the universal link failed to launch.
 Future<bool> launch(
   String urlString, {
-  bool forceSafariVC,
-  bool forceWebView,
-  bool enableJavaScript,
-  bool enableDomStorage,
-  bool universalLinksOnly,
-  Map<String, String> headers,
-  Brightness statusBarBrightness,
-  String webOnlyWindowName,
+  bool forceSafariVC = true,
+  bool forceWebView = false,
+  bool enableJavaScript = false,
+  bool enableDomStorage = false,
+  bool universalLinksOnly = false,
+  Map<String, String> headers = const <String, String>{},
+  Brightness? statusBarBrightness,
+  String? webOnlyWindowName,
 }) async {
-  assert(urlString != null);
   final Uri url = Uri.parse(urlString.trimLeft());
   final bool isWebURL = url.scheme == 'http' || url.scheme == 'https';
   if ((forceSafariVC == true || forceWebView == true) && !isWebURL) {
@@ -81,29 +80,32 @@ Future<bool> launch(
   /// [true] so that ui is automatically computed if [statusBarBrightness] is set.
   bool previousAutomaticSystemUiAdjustment = true;
   if (statusBarBrightness != null &&
-      defaultTargetPlatform == TargetPlatform.iOS) {
+      defaultTargetPlatform == TargetPlatform.iOS &&
+      WidgetsBinding.instance != null) {
     previousAutomaticSystemUiAdjustment =
-        WidgetsBinding.instance.renderView.automaticSystemUiAdjustment;
-    WidgetsBinding.instance.renderView.automaticSystemUiAdjustment = false;
+        WidgetsBinding.instance!.renderView.automaticSystemUiAdjustment;
+    WidgetsBinding.instance!.renderView.automaticSystemUiAdjustment = false;
     SystemChrome.setSystemUIOverlayStyle(statusBarBrightness == Brightness.light
         ? SystemUiOverlayStyle.dark
         : SystemUiOverlayStyle.light);
   }
+
   final bool result = await UrlLauncherPlatform.instance.launch(
     urlString,
-    useSafariVC: forceSafariVC ?? isWebURL,
-    useWebView: forceWebView ?? false,
-    enableJavaScript: enableJavaScript ?? false,
-    enableDomStorage: enableDomStorage ?? false,
-    universalLinksOnly: universalLinksOnly ?? false,
-    headers: headers ?? <String, String>{},
+    useSafariVC: forceSafariVC,
+    useWebView: forceWebView,
+    enableJavaScript: enableJavaScript,
+    enableDomStorage: enableDomStorage,
+    universalLinksOnly: universalLinksOnly,
+    headers: headers,
     webOnlyWindowName: webOnlyWindowName,
   );
-  assert(previousAutomaticSystemUiAdjustment != null);
-  if (statusBarBrightness != null) {
-    WidgetsBinding.instance.renderView.automaticSystemUiAdjustment =
+
+  if (statusBarBrightness != null && WidgetsBinding.instance != null) {
+    WidgetsBinding.instance!.renderView.automaticSystemUiAdjustment =
         previousAutomaticSystemUiAdjustment;
   }
+
   return result;
 }
 
@@ -115,9 +117,6 @@ Future<bool> launch(
 /// For more information see the [Managing package visibility](https://developer.android.com/training/basics/intents/package-visibility)
 /// article in the Android docs.
 Future<bool> canLaunch(String urlString) async {
-  if (urlString == null) {
-    return false;
-  }
   return await UrlLauncherPlatform.instance.canLaunch(urlString);
 }
 
diff --git a/packages/url_launcher/url_launcher/pubspec.yaml b/packages/url_launcher/url_launcher/pubspec.yaml
index 49d52eecf69d..8d346481c5fc 100644
--- a/packages/url_launcher/url_launcher/pubspec.yaml
+++ b/packages/url_launcher/url_launcher/pubspec.yaml
@@ -2,7 +2,7 @@ name: url_launcher
 description: Flutter plugin for launching a URL on Android and iOS. Supports
   web, phone, SMS, and email schemes.
 homepage: https://github.com/flutter/plugins/tree/master/packages/url_launcher/url_launcher
-version: 5.7.4
+version: 5.8.0-nullsafety
 
 flutter:
   plugin:
@@ -24,13 +24,16 @@ flutter:
 dependencies:
   flutter:
     sdk: flutter
-  url_launcher_platform_interface: ^1.0.8
+  # TODO(mvanbeusekom): Update to use pub.dev once null safety version is published.
+  url_launcher_platform_interface: 
+    path: ../url_launcher_platform_interface
   # The design on https://flutter.dev/go/federated-plugins was to leave
   # this constraint as "any". We cannot do it right now as it fails pub publish
   # validation, so we set a ^ constraint.
   # TODO(amirh): Revisit this (either update this part in the  design or the pub tool).
   # https://github.com/flutter/flutter/issues/46264
-  url_launcher_web: ^0.1.3
+  url_launcher_web:
+    path: ../url_launcher_web
   url_launcher_linux: ^0.0.1
   url_launcher_macos: ^0.0.1
   url_launcher_windows: ^0.0.1
@@ -38,11 +41,16 @@ dependencies:
 dev_dependencies:
   flutter_test:
     sdk: flutter
-  test: ^1.3.0
+  test: ^1.10.0-nullsafety.1
   mockito: ^4.1.1
-  plugin_platform_interface: ^1.0.0
-  pedantic: ^1.8.0
+  # TODO (mvanbeusekom): Update to use pub.dev once 1.10.0-nullsafety released.
+  plugin_platform_interface:
+    git: 
+      url: https://github.com/flutter/plugins.git
+      ref: nnbd
+      path: packages/plugin_platform_interface
+  pedantic: ^1.10.0-nullsafety.1
 
 environment:
-  sdk: ">=2.1.0 <3.0.0"
+  sdk: ">=2.10.0-56.0.dev <3.0.0"
   flutter: ">=1.12.13+hotfix.5 <2.0.0"
diff --git a/packages/url_launcher/url_launcher/test/url_launcher_test.dart b/packages/url_launcher/url_launcher/test/url_launcher_test.dart
index f18e16c7e318..1934d8af2ad3 100644
--- a/packages/url_launcher/url_launcher/test/url_launcher_test.dart
+++ b/packages/url_launcher/url_launcher/test/url_launcher_test.dart
@@ -6,7 +6,10 @@
 
 import 'dart:async';
 import 'dart:ui';
+
 import 'package:flutter_test/flutter_test.dart';
+// TODO(mvanbeusekom): Remove once Mockito is migrated to null safety.
+// @dart = 2.9
 import 'package:mockito/mockito.dart';
 import 'package:flutter/foundation.dart';
 import 'package:plugin_platform_interface/plugin_platform_interface.dart';
@@ -41,10 +44,6 @@ void main() {
     });
   });
   group('launch', () {
-    test('requires a non-null urlString', () {
-      expect(() => launch(null), throwsAssertionError);
-    });
-
     test('default behavior', () async {
       await launch('http://flutter.dev/');
       expect(
diff --git a/packages/url_launcher/url_launcher_web/pubspec.yaml b/packages/url_launcher/url_launcher_web/pubspec.yaml
index 957b25757036..0fa5b35d4014 100644
--- a/packages/url_launcher/url_launcher_web/pubspec.yaml
+++ b/packages/url_launcher/url_launcher_web/pubspec.yaml
@@ -14,7 +14,9 @@ flutter:
         fileName: url_launcher_web.dart
 
 dependencies:
-  url_launcher_platform_interface: ^1.0.8
+  # TODO(mvanbeusekom): Update to use pub.dev once null safety version is published.
+  url_launcher_platform_interface: 
+    path: ../url_launcher_platform_interface
   flutter:
     sdk: flutter
   flutter_web_plugins:
@@ -24,7 +26,9 @@ dependencies:
 dev_dependencies:
   flutter_test:
     sdk: flutter
-  url_launcher: ^5.2.5
+  # TODO(mvanbeusekom): Update to use pub.dev once null safety version is published.
+  url_launcher:
+    path: ../url_launcher
   pedantic: ^1.8.0
   mockito: ^4.1.1
   integration_test:

From 85471269bdf335a2ab0b72ae0961159cfc4572d7 Mon Sep 17 00:00:00 2001
From: Maurits van Beusekom <maurits@baseflow.com>
Date: Wed, 14 Oct 2020 09:53:36 +0200
Subject: [PATCH 05/13] Rebased with nnbd branch

---
 packages/url_launcher/url_launcher/analysis_options.yaml     | 4 ++++
 packages/url_launcher/url_launcher/example/pubspec.yaml      | 5 +----
 packages/url_launcher/url_launcher/pubspec.yaml              | 5 +----
 packages/url_launcher/url_launcher_web/analysis_options.yaml | 4 ++++
 script/incremental_build.sh                                  | 1 +
 5 files changed, 11 insertions(+), 8 deletions(-)
 create mode 100644 packages/url_launcher/url_launcher/analysis_options.yaml
 create mode 100644 packages/url_launcher/url_launcher_web/analysis_options.yaml

diff --git a/packages/url_launcher/url_launcher/analysis_options.yaml b/packages/url_launcher/url_launcher/analysis_options.yaml
new file mode 100644
index 000000000000..32ff54f2748c
--- /dev/null
+++ b/packages/url_launcher/url_launcher/analysis_options.yaml
@@ -0,0 +1,4 @@
+include: ../../../analysis_options.yaml
+analyzer:
+  enable-experiment:
+    - non-nullable
\ No newline at end of file
diff --git a/packages/url_launcher/url_launcher/example/pubspec.yaml b/packages/url_launcher/url_launcher/example/pubspec.yaml
index 4ada0390f891..2b5caf7e9fb1 100644
--- a/packages/url_launcher/url_launcher/example/pubspec.yaml
+++ b/packages/url_launcher/url_launcher/example/pubspec.yaml
@@ -16,10 +16,7 @@ dev_dependencies:
   mockito: ^4.1.1
   # TODO (mvanbeusekom): Update to use pub.dev once 1.10.0-nullsafety released.
   plugin_platform_interface:
-    git: 
-      url: https://github.com/flutter/plugins.git
-      ref: nnbd
-      path: packages/plugin_platform_interface
+    path: ../../../plugin_platform_interface
 
 flutter:
   uses-material-design: true
diff --git a/packages/url_launcher/url_launcher/pubspec.yaml b/packages/url_launcher/url_launcher/pubspec.yaml
index 8d346481c5fc..64e8946a9f71 100644
--- a/packages/url_launcher/url_launcher/pubspec.yaml
+++ b/packages/url_launcher/url_launcher/pubspec.yaml
@@ -45,10 +45,7 @@ dev_dependencies:
   mockito: ^4.1.1
   # TODO (mvanbeusekom): Update to use pub.dev once 1.10.0-nullsafety released.
   plugin_platform_interface:
-    git: 
-      url: https://github.com/flutter/plugins.git
-      ref: nnbd
-      path: packages/plugin_platform_interface
+    path: ../../plugin_platform_interface
   pedantic: ^1.10.0-nullsafety.1
 
 environment:
diff --git a/packages/url_launcher/url_launcher_web/analysis_options.yaml b/packages/url_launcher/url_launcher_web/analysis_options.yaml
new file mode 100644
index 000000000000..32ff54f2748c
--- /dev/null
+++ b/packages/url_launcher/url_launcher_web/analysis_options.yaml
@@ -0,0 +1,4 @@
+include: ../../../analysis_options.yaml
+analyzer:
+  enable-experiment:
+    - non-nullable
\ No newline at end of file
diff --git a/script/incremental_build.sh b/script/incremental_build.sh
index 15a969070950..f41f91d7906f 100755
--- a/script/incremental_build.sh
+++ b/script/incremental_build.sh
@@ -28,6 +28,7 @@ CUSTOM_ANALYSIS_PLUGINS=(
   "video_player/video_player_web"
   "google_maps_flutter/google_maps_flutter_web"
   "url_launcher/url_launcher_platform_interface"
+  "url_launcher/url_launcher"
   "device_info/device_info_platform_interface"
   "device_info/device_info"
 )

From 8a2c80cbcfd38bf9306f8173e37f4516ef30a015 Mon Sep 17 00:00:00 2001
From: Maurits van Beusekom <maurits@baseflow.com>
Date: Wed, 14 Oct 2020 13:23:50 +0200
Subject: [PATCH 06/13] Add null safety to web implementation

---
 .../url_launcher_web/CHANGELOG.md             |  4 +++
 .../lib/url_launcher_web.dart                 | 20 ++++++------
 .../url_launcher_web/pubspec.yaml             |  8 ++---
 .../url_launcher_web_integration.dart         | 32 +++----------------
 4 files changed, 23 insertions(+), 41 deletions(-)

diff --git a/packages/url_launcher/url_launcher_web/CHANGELOG.md b/packages/url_launcher/url_launcher_web/CHANGELOG.md
index 456d458834bf..7ee73585eb55 100644
--- a/packages/url_launcher/url_launcher_web/CHANGELOG.md
+++ b/packages/url_launcher/url_launcher_web/CHANGELOG.md
@@ -1,3 +1,7 @@
+# 0.2.0-nullsafety
+
+- Migrate to null safety.
+
 # 0.1.4+2
 
 - Move `lib/third_party` to `lib/src/third_party`.
diff --git a/packages/url_launcher/url_launcher_web/lib/url_launcher_web.dart b/packages/url_launcher/url_launcher_web/lib/url_launcher_web.dart
index 093e06a4d8ed..b3da2cdfa09e 100644
--- a/packages/url_launcher/url_launcher_web/lib/url_launcher_web.dart
+++ b/packages/url_launcher/url_launcher_web/lib/url_launcher_web.dart
@@ -16,7 +16,7 @@ const _safariTargetTopSchemes = {
   'tel',
   'sms',
 };
-String _getUrlScheme(String url) => Uri.tryParse(url)?.scheme;
+String? _getUrlScheme(String url) => Uri.tryParse(url)?.scheme;
 
 bool _isSafariTargetTopScheme(String url) =>
     _safariTargetTopSchemes.contains(_getUrlScheme(url));
@@ -35,7 +35,7 @@ class UrlLauncherPlugin extends UrlLauncherPlatform {
   }.union(_safariTargetTopSchemes);
 
   /// A constructor that allows tests to override the window object used by the plugin.
-  UrlLauncherPlugin({@visibleForTesting html.Window debugWindow})
+  UrlLauncherPlugin({@visibleForTesting html.Window? debugWindow})
       : _window = debugWindow ?? html.window {
     _isSafari = navigatorIsSafari(_window.navigator);
   }
@@ -49,7 +49,7 @@ class UrlLauncherPlugin extends UrlLauncherPlatform {
   ///
   /// Returns the newly created window.
   @visibleForTesting
-  html.WindowBase openNewWindow(String url, {String webOnlyWindowName}) {
+  html.WindowBase openNewWindow(String url, {String? webOnlyWindowName}) {
     // We need to open mailto, tel and sms urls on the _top window context on safari browsers.
     // See https://github.com/flutter/flutter/issues/51461 for reference.
     final target = webOnlyWindowName ??
@@ -65,13 +65,13 @@ class UrlLauncherPlugin extends UrlLauncherPlatform {
   @override
   Future<bool> launch(
     String url, {
-    @required bool useSafariVC,
-    @required bool useWebView,
-    @required bool enableJavaScript,
-    @required bool enableDomStorage,
-    @required bool universalLinksOnly,
-    @required Map<String, String> headers,
-    String webOnlyWindowName,
+    bool useSafariVC = false,
+    bool useWebView = false,
+    bool enableJavaScript = false,
+    bool enableDomStorage = false,
+    bool universalLinksOnly = false,
+    Map<String, String> headers = const <String, String>{},
+    String? webOnlyWindowName,
   }) {
     return Future<bool>.value(
         openNewWindow(url, webOnlyWindowName: webOnlyWindowName) != null);
diff --git a/packages/url_launcher/url_launcher_web/pubspec.yaml b/packages/url_launcher/url_launcher_web/pubspec.yaml
index 0fa5b35d4014..7f54bc3c946c 100644
--- a/packages/url_launcher/url_launcher_web/pubspec.yaml
+++ b/packages/url_launcher/url_launcher_web/pubspec.yaml
@@ -4,7 +4,7 @@ homepage: https://github.com/flutter/plugins/tree/master/packages/url_launcher/u
 # 0.1.y+z is compatible with 1.0.0, if you land a breaking change bump
 # the version to 2.0.0.
 # See more details: https://github.com/flutter/flutter/wiki/Package-migration-to-1.0.0
-version: 0.1.4+2
+version: 0.2.0-nullsafety
 
 flutter:
   plugin:
@@ -21,7 +21,7 @@ dependencies:
     sdk: flutter
   flutter_web_plugins:
     sdk: flutter
-  meta: ^1.1.7
+  meta: ^1.3.0-nullsafety.3
 
 dev_dependencies:
   flutter_test:
@@ -29,11 +29,11 @@ dev_dependencies:
   # TODO(mvanbeusekom): Update to use pub.dev once null safety version is published.
   url_launcher:
     path: ../url_launcher
-  pedantic: ^1.8.0
+  pedantic: ^1.10.0-nullsafety.1
   mockito: ^4.1.1
   integration_test:
     path: ../../integration_test
 
 environment:
-  sdk: ">=2.2.0 <3.0.0"
+  sdk: ">=2.10.0-56.0.dev <3.0.0"
   flutter: ">=1.10.0 <2.0.0"
diff --git a/packages/url_launcher/url_launcher_web/test/test_driver/url_launcher_web_integration.dart b/packages/url_launcher/url_launcher_web/test/test_driver/url_launcher_web_integration.dart
index d0dd6e38ee46..b1240e7e29b2 100644
--- a/packages/url_launcher/url_launcher_web/test/test_driver/url_launcher_web_integration.dart
+++ b/packages/url_launcher/url_launcher_web/test/test_driver/url_launcher_web_integration.dart
@@ -5,6 +5,8 @@
 import 'dart:html' as html;
 import 'package:flutter_test/flutter_test.dart';
 import 'package:url_launcher_web/url_launcher_web.dart';
+// TODO(mvanbeusekom): Remove once Mockito is migrated to null safety.
+// @dart = 2.9
 import 'package:mockito/mockito.dart';
 import 'package:integration_test/integration_test.dart';
 
@@ -16,10 +18,10 @@ void main() {
   IntegrationTestWidgetsFlutterBinding.ensureInitialized();
 
   group('UrlLauncherPlugin', () {
-    _MockWindow mockWindow;
-    _MockNavigator mockNavigator;
+    late _MockWindow mockWindow;
+    late _MockNavigator mockNavigator;
 
-    UrlLauncherPlugin plugin;
+    late UrlLauncherPlugin plugin;
 
     setUp(() {
       mockWindow = _MockWindow();
@@ -70,12 +72,6 @@ void main() {
         expect(
             plugin.launch(
               'https://www.google.com',
-              useSafariVC: null,
-              useWebView: null,
-              universalLinksOnly: null,
-              enableDomStorage: null,
-              enableJavaScript: null,
-              headers: null,
             ),
             completion(isTrue));
       });
@@ -84,12 +80,6 @@ void main() {
         expect(
             plugin.launch(
               'mailto:name@mydomain.com',
-              useSafariVC: null,
-              useWebView: null,
-              universalLinksOnly: null,
-              enableDomStorage: null,
-              enableJavaScript: null,
-              headers: null,
             ),
             completion(isTrue));
       });
@@ -98,12 +88,6 @@ void main() {
         expect(
             plugin.launch(
               'tel:5551234567',
-              useSafariVC: null,
-              useWebView: null,
-              universalLinksOnly: null,
-              enableDomStorage: null,
-              enableJavaScript: null,
-              headers: null,
             ),
             completion(isTrue));
       });
@@ -112,12 +96,6 @@ void main() {
         expect(
             plugin.launch(
               'sms:+19725551212?body=hello%20there',
-              useSafariVC: null,
-              useWebView: null,
-              universalLinksOnly: null,
-              enableDomStorage: null,
-              enableJavaScript: null,
-              headers: null,
             ),
             completion(isTrue));
       });

From fd9bae3e808cfc17a39249e8551d8e5ceacca26b Mon Sep 17 00:00:00 2001
From: Maurits van Beusekom <maurits@baseflow.com>
Date: Thu, 15 Oct 2020 18:08:36 +0200
Subject: [PATCH 07/13] Update Dart SDK version

---
 packages/url_launcher/url_launcher_web/test/pubspec.yaml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/packages/url_launcher/url_launcher_web/test/pubspec.yaml b/packages/url_launcher/url_launcher_web/test/pubspec.yaml
index e755dff85004..b8c541f72986 100644
--- a/packages/url_launcher/url_launcher_web/test/pubspec.yaml
+++ b/packages/url_launcher/url_launcher_web/test/pubspec.yaml
@@ -2,7 +2,7 @@ name: regular_integration_tests
 publish_to: none
 
 environment:
-  sdk: ">=2.2.2 <3.0.0"
+  sdk: ">=2.10.0-56.0.dev <3.0.0"
 
 dependencies:
   flutter:

From 4fb1ceeefbf0161a57687c75e828283aec01d842 Mon Sep 17 00:00:00 2001
From: Maurits van Beusekom <maurits@baseflow.com>
Date: Thu, 15 Oct 2020 18:10:47 +0200
Subject: [PATCH 08/13] Depend on plugin_platform_interface from GIT

---
 packages/url_launcher/url_launcher/example/pubspec.yaml | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/packages/url_launcher/url_launcher/example/pubspec.yaml b/packages/url_launcher/url_launcher/example/pubspec.yaml
index 2b5caf7e9fb1..7e464dec6fe3 100644
--- a/packages/url_launcher/url_launcher/example/pubspec.yaml
+++ b/packages/url_launcher/url_launcher/example/pubspec.yaml
@@ -16,7 +16,10 @@ dev_dependencies:
   mockito: ^4.1.1
   # TODO (mvanbeusekom): Update to use pub.dev once 1.10.0-nullsafety released.
   plugin_platform_interface:
-    path: ../../../plugin_platform_interface
+    git:
+      url: https://github.com/flutter/plugins.git
+      ref: nnbd
+      path: packages/plugin_platform_interface
 
 flutter:
   uses-material-design: true

From e1a0b6c9f680fa99874c4377f3c6770f9e6c325a Mon Sep 17 00:00:00 2001
From: Maurits van Beusekom <maurits@baseflow.com>
Date: Fri, 16 Oct 2020 10:11:16 +0200
Subject: [PATCH 09/13] Bump major version

---
 packages/url_launcher/url_launcher/CHANGELOG.md | 2 +-
 packages/url_launcher/url_launcher/pubspec.yaml | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/packages/url_launcher/url_launcher/CHANGELOG.md b/packages/url_launcher/url_launcher/CHANGELOG.md
index d1f2c1c462f4..998c0d243206 100644
--- a/packages/url_launcher/url_launcher/CHANGELOG.md
+++ b/packages/url_launcher/url_launcher/CHANGELOG.md
@@ -1,4 +1,4 @@
-## 5.8.0-nullsafety
+## 6.0.0-nullsafety
 
 * Migrate to null safety.
 
diff --git a/packages/url_launcher/url_launcher/pubspec.yaml b/packages/url_launcher/url_launcher/pubspec.yaml
index 64e8946a9f71..aafc48751fb6 100644
--- a/packages/url_launcher/url_launcher/pubspec.yaml
+++ b/packages/url_launcher/url_launcher/pubspec.yaml
@@ -2,7 +2,7 @@ name: url_launcher
 description: Flutter plugin for launching a URL on Android and iOS. Supports
   web, phone, SMS, and email schemes.
 homepage: https://github.com/flutter/plugins/tree/master/packages/url_launcher/url_launcher
-version: 5.8.0-nullsafety
+version: 6.0.0-nullsafety
 
 flutter:
   plugin:

From 9d4445d7efce554a447a7c942b41e36fb247fc65 Mon Sep 17 00:00:00 2001
From: Maurits van Beusekom <maurits@baseflow.com>
Date: Fri, 16 Oct 2020 11:57:06 +0200
Subject: [PATCH 10/13] Add new line at end of file

---
 packages/url_launcher/url_launcher/analysis_options.yaml     | 2 +-
 packages/url_launcher/url_launcher_web/analysis_options.yaml | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/packages/url_launcher/url_launcher/analysis_options.yaml b/packages/url_launcher/url_launcher/analysis_options.yaml
index 32ff54f2748c..3d64bb57fe49 100644
--- a/packages/url_launcher/url_launcher/analysis_options.yaml
+++ b/packages/url_launcher/url_launcher/analysis_options.yaml
@@ -1,4 +1,4 @@
 include: ../../../analysis_options.yaml
 analyzer:
   enable-experiment:
-    - non-nullable
\ No newline at end of file
+    - non-nullable
diff --git a/packages/url_launcher/url_launcher_web/analysis_options.yaml b/packages/url_launcher/url_launcher_web/analysis_options.yaml
index 32ff54f2748c..3d64bb57fe49 100644
--- a/packages/url_launcher/url_launcher_web/analysis_options.yaml
+++ b/packages/url_launcher/url_launcher_web/analysis_options.yaml
@@ -1,4 +1,4 @@
 include: ../../../analysis_options.yaml
 analyzer:
   enable-experiment:
-    - non-nullable
\ No newline at end of file
+    - non-nullable

From 0ac5be033e2a1a3d12bd15181a029544ab9057c0 Mon Sep 17 00:00:00 2001
From: Maurits van Beusekom <maurits@baseflow.com>
Date: Tue, 20 Oct 2020 14:13:40 +0200
Subject: [PATCH 11/13] Revert "Add null safety to web implementation"

This reverts commit b199e622a09bdc85b98d2c7b932be811e8e6178f.
---
 .../url_launcher_web/CHANGELOG.md             |  4 ---
 .../lib/url_launcher_web.dart                 | 20 ++++++------
 .../url_launcher_web/pubspec.yaml             |  8 ++---
 .../url_launcher_web_integration.dart         | 32 ++++++++++++++++---
 4 files changed, 41 insertions(+), 23 deletions(-)

diff --git a/packages/url_launcher/url_launcher_web/CHANGELOG.md b/packages/url_launcher/url_launcher_web/CHANGELOG.md
index 7ee73585eb55..456d458834bf 100644
--- a/packages/url_launcher/url_launcher_web/CHANGELOG.md
+++ b/packages/url_launcher/url_launcher_web/CHANGELOG.md
@@ -1,7 +1,3 @@
-# 0.2.0-nullsafety
-
-- Migrate to null safety.
-
 # 0.1.4+2
 
 - Move `lib/third_party` to `lib/src/third_party`.
diff --git a/packages/url_launcher/url_launcher_web/lib/url_launcher_web.dart b/packages/url_launcher/url_launcher_web/lib/url_launcher_web.dart
index b3da2cdfa09e..093e06a4d8ed 100644
--- a/packages/url_launcher/url_launcher_web/lib/url_launcher_web.dart
+++ b/packages/url_launcher/url_launcher_web/lib/url_launcher_web.dart
@@ -16,7 +16,7 @@ const _safariTargetTopSchemes = {
   'tel',
   'sms',
 };
-String? _getUrlScheme(String url) => Uri.tryParse(url)?.scheme;
+String _getUrlScheme(String url) => Uri.tryParse(url)?.scheme;
 
 bool _isSafariTargetTopScheme(String url) =>
     _safariTargetTopSchemes.contains(_getUrlScheme(url));
@@ -35,7 +35,7 @@ class UrlLauncherPlugin extends UrlLauncherPlatform {
   }.union(_safariTargetTopSchemes);
 
   /// A constructor that allows tests to override the window object used by the plugin.
-  UrlLauncherPlugin({@visibleForTesting html.Window? debugWindow})
+  UrlLauncherPlugin({@visibleForTesting html.Window debugWindow})
       : _window = debugWindow ?? html.window {
     _isSafari = navigatorIsSafari(_window.navigator);
   }
@@ -49,7 +49,7 @@ class UrlLauncherPlugin extends UrlLauncherPlatform {
   ///
   /// Returns the newly created window.
   @visibleForTesting
-  html.WindowBase openNewWindow(String url, {String? webOnlyWindowName}) {
+  html.WindowBase openNewWindow(String url, {String webOnlyWindowName}) {
     // We need to open mailto, tel and sms urls on the _top window context on safari browsers.
     // See https://github.com/flutter/flutter/issues/51461 for reference.
     final target = webOnlyWindowName ??
@@ -65,13 +65,13 @@ class UrlLauncherPlugin extends UrlLauncherPlatform {
   @override
   Future<bool> launch(
     String url, {
-    bool useSafariVC = false,
-    bool useWebView = false,
-    bool enableJavaScript = false,
-    bool enableDomStorage = false,
-    bool universalLinksOnly = false,
-    Map<String, String> headers = const <String, String>{},
-    String? webOnlyWindowName,
+    @required bool useSafariVC,
+    @required bool useWebView,
+    @required bool enableJavaScript,
+    @required bool enableDomStorage,
+    @required bool universalLinksOnly,
+    @required Map<String, String> headers,
+    String webOnlyWindowName,
   }) {
     return Future<bool>.value(
         openNewWindow(url, webOnlyWindowName: webOnlyWindowName) != null);
diff --git a/packages/url_launcher/url_launcher_web/pubspec.yaml b/packages/url_launcher/url_launcher_web/pubspec.yaml
index 7f54bc3c946c..0fa5b35d4014 100644
--- a/packages/url_launcher/url_launcher_web/pubspec.yaml
+++ b/packages/url_launcher/url_launcher_web/pubspec.yaml
@@ -4,7 +4,7 @@ homepage: https://github.com/flutter/plugins/tree/master/packages/url_launcher/u
 # 0.1.y+z is compatible with 1.0.0, if you land a breaking change bump
 # the version to 2.0.0.
 # See more details: https://github.com/flutter/flutter/wiki/Package-migration-to-1.0.0
-version: 0.2.0-nullsafety
+version: 0.1.4+2
 
 flutter:
   plugin:
@@ -21,7 +21,7 @@ dependencies:
     sdk: flutter
   flutter_web_plugins:
     sdk: flutter
-  meta: ^1.3.0-nullsafety.3
+  meta: ^1.1.7
 
 dev_dependencies:
   flutter_test:
@@ -29,11 +29,11 @@ dev_dependencies:
   # TODO(mvanbeusekom): Update to use pub.dev once null safety version is published.
   url_launcher:
     path: ../url_launcher
-  pedantic: ^1.10.0-nullsafety.1
+  pedantic: ^1.8.0
   mockito: ^4.1.1
   integration_test:
     path: ../../integration_test
 
 environment:
-  sdk: ">=2.10.0-56.0.dev <3.0.0"
+  sdk: ">=2.2.0 <3.0.0"
   flutter: ">=1.10.0 <2.0.0"
diff --git a/packages/url_launcher/url_launcher_web/test/test_driver/url_launcher_web_integration.dart b/packages/url_launcher/url_launcher_web/test/test_driver/url_launcher_web_integration.dart
index b1240e7e29b2..d0dd6e38ee46 100644
--- a/packages/url_launcher/url_launcher_web/test/test_driver/url_launcher_web_integration.dart
+++ b/packages/url_launcher/url_launcher_web/test/test_driver/url_launcher_web_integration.dart
@@ -5,8 +5,6 @@
 import 'dart:html' as html;
 import 'package:flutter_test/flutter_test.dart';
 import 'package:url_launcher_web/url_launcher_web.dart';
-// TODO(mvanbeusekom): Remove once Mockito is migrated to null safety.
-// @dart = 2.9
 import 'package:mockito/mockito.dart';
 import 'package:integration_test/integration_test.dart';
 
@@ -18,10 +16,10 @@ void main() {
   IntegrationTestWidgetsFlutterBinding.ensureInitialized();
 
   group('UrlLauncherPlugin', () {
-    late _MockWindow mockWindow;
-    late _MockNavigator mockNavigator;
+    _MockWindow mockWindow;
+    _MockNavigator mockNavigator;
 
-    late UrlLauncherPlugin plugin;
+    UrlLauncherPlugin plugin;
 
     setUp(() {
       mockWindow = _MockWindow();
@@ -72,6 +70,12 @@ void main() {
         expect(
             plugin.launch(
               'https://www.google.com',
+              useSafariVC: null,
+              useWebView: null,
+              universalLinksOnly: null,
+              enableDomStorage: null,
+              enableJavaScript: null,
+              headers: null,
             ),
             completion(isTrue));
       });
@@ -80,6 +84,12 @@ void main() {
         expect(
             plugin.launch(
               'mailto:name@mydomain.com',
+              useSafariVC: null,
+              useWebView: null,
+              universalLinksOnly: null,
+              enableDomStorage: null,
+              enableJavaScript: null,
+              headers: null,
             ),
             completion(isTrue));
       });
@@ -88,6 +98,12 @@ void main() {
         expect(
             plugin.launch(
               'tel:5551234567',
+              useSafariVC: null,
+              useWebView: null,
+              universalLinksOnly: null,
+              enableDomStorage: null,
+              enableJavaScript: null,
+              headers: null,
             ),
             completion(isTrue));
       });
@@ -96,6 +112,12 @@ void main() {
         expect(
             plugin.launch(
               'sms:+19725551212?body=hello%20there',
+              useSafariVC: null,
+              useWebView: null,
+              universalLinksOnly: null,
+              enableDomStorage: null,
+              enableJavaScript: null,
+              headers: null,
             ),
             completion(isTrue));
       });

From 6bab67b348c4c7475f2641fe6af4397923a8eb66 Mon Sep 17 00:00:00 2001
From: Maurits van Beusekom <maurits@baseflow.com>
Date: Tue, 20 Oct 2020 14:21:26 +0200
Subject: [PATCH 12/13] Disable dependency on web until nnbd is supported

---
 packages/url_launcher/url_launcher/pubspec.yaml | 14 +++++++++-----
 1 file changed, 9 insertions(+), 5 deletions(-)

diff --git a/packages/url_launcher/url_launcher/pubspec.yaml b/packages/url_launcher/url_launcher/pubspec.yaml
index aafc48751fb6..ef844e65f199 100644
--- a/packages/url_launcher/url_launcher/pubspec.yaml
+++ b/packages/url_launcher/url_launcher/pubspec.yaml
@@ -12,8 +12,9 @@ flutter:
         pluginClass: UrlLauncherPlugin
       ios:
         pluginClass: FLTURLLauncherPlugin
-      web:
-        default_package: url_launcher_web
+      # TODO(mvanbeusekom): Temporary disabled until web is migrated to nnbd (advised by @blasten).
+      #web:
+      #  default_package: url_launcher_web
       linux:
         default_package: url_laucher_linux
       macos:
@@ -32,11 +33,11 @@ dependencies:
   # validation, so we set a ^ constraint.
   # TODO(amirh): Revisit this (either update this part in the  design or the pub tool).
   # https://github.com/flutter/flutter/issues/46264
-  url_launcher_web:
-    path: ../url_launcher_web
   url_launcher_linux: ^0.0.1
   url_launcher_macos: ^0.0.1
   url_launcher_windows: ^0.0.1
+  # TODO(mvanbeusekom): Temporary disabled until web is migrated to nnbd (advised by @blasten).
+  url_launcher_web: ^0.1.3
 
 dev_dependencies:
   flutter_test:
@@ -45,7 +46,10 @@ dev_dependencies:
   mockito: ^4.1.1
   # TODO (mvanbeusekom): Update to use pub.dev once 1.10.0-nullsafety released.
   plugin_platform_interface:
-    path: ../../plugin_platform_interface
+    git:
+      url: https://github.com/flutter/plugins.git
+      ref: nnbd
+      path: packages/plugin_platform_interface
   pedantic: ^1.10.0-nullsafety.1
 
 environment:

From 42719e77b8ddf77bd155d9637fc24d713b06f089 Mon Sep 17 00:00:00 2001
From: Maurits van Beusekom <maurits@baseflow.com>
Date: Tue, 20 Oct 2020 14:45:42 +0200
Subject: [PATCH 13/13] Depend on GIT

---
 packages/url_launcher/url_launcher/pubspec.yaml            | 2 +-
 .../url_launcher_platform_interface/pubspec.yaml           | 7 +++++--
 2 files changed, 6 insertions(+), 3 deletions(-)

diff --git a/packages/url_launcher/url_launcher/pubspec.yaml b/packages/url_launcher/url_launcher/pubspec.yaml
index ef844e65f199..43688ff6954b 100644
--- a/packages/url_launcher/url_launcher/pubspec.yaml
+++ b/packages/url_launcher/url_launcher/pubspec.yaml
@@ -37,7 +37,7 @@ dependencies:
   url_launcher_macos: ^0.0.1
   url_launcher_windows: ^0.0.1
   # TODO(mvanbeusekom): Temporary disabled until web is migrated to nnbd (advised by @blasten).
-  url_launcher_web: ^0.1.3
+  #url_launcher_web: ^0.1.3
 
 dev_dependencies:
   flutter_test:
diff --git a/packages/url_launcher/url_launcher_platform_interface/pubspec.yaml b/packages/url_launcher/url_launcher_platform_interface/pubspec.yaml
index e01abe7e1dce..cbe2cf05e043 100644
--- a/packages/url_launcher/url_launcher_platform_interface/pubspec.yaml
+++ b/packages/url_launcher/url_launcher_platform_interface/pubspec.yaml
@@ -8,9 +8,12 @@ version: 2.0.0-nullsafety
 dependencies:
   flutter:
     sdk: flutter
-  # TODO (mvanbeusekom): use pub.dev once 1.10.0-nullsafety released.
+  # TODO (mvanbeusekom): Update to use pub.dev once 1.10.0-nullsafety released.
   plugin_platform_interface:
-      path: ../../plugin_platform_interface
+    git:
+      url: https://github.com/flutter/plugins.git
+      ref: nnbd
+      path: packages/plugin_platform_interface
 
 dev_dependencies:
   flutter_test: