diff --git a/packages/extension_google_sign_in_as_googleapis_auth/CHANGELOG.md b/packages/extension_google_sign_in_as_googleapis_auth/CHANGELOG.md
index 9ce16711ca07..f6fa4afb9c61 100644
--- a/packages/extension_google_sign_in_as_googleapis_auth/CHANGELOG.md
+++ b/packages/extension_google_sign_in_as_googleapis_auth/CHANGELOG.md
@@ -1,3 +1,7 @@
+## 2.0.4
+
+* Update example with the latest changes from `google_sign_in`, so it builds again on Android. [#89301](https://github.com/flutter/flutter/issues/89301).
+
 ## 2.0.3
 
 * Adjust formatting of code snippets in README.
diff --git a/packages/extension_google_sign_in_as_googleapis_auth/example/.gitignore b/packages/extension_google_sign_in_as_googleapis_auth/example/.gitignore
new file mode 100644
index 000000000000..0fa6b675c0a5
--- /dev/null
+++ b/packages/extension_google_sign_in_as_googleapis_auth/example/.gitignore
@@ -0,0 +1,46 @@
+# Miscellaneous
+*.class
+*.log
+*.pyc
+*.swp
+.DS_Store
+.atom/
+.buildlog/
+.history
+.svn/
+
+# IntelliJ related
+*.iml
+*.ipr
+*.iws
+.idea/
+
+# The .vscode folder contains launch configuration and tasks you configure in
+# VS Code which you may wish to be included in version control, so this line
+# is commented out by default.
+#.vscode/
+
+# Flutter/Dart/Pub related
+**/doc/api/
+**/ios/Flutter/.last_build_id
+.dart_tool/
+.flutter-plugins
+.flutter-plugins-dependencies
+.packages
+.pub-cache/
+.pub/
+/build/
+
+# Web related
+lib/generated_plugin_registrant.dart
+
+# Symbolication related
+app.*.symbols
+
+# Obfuscation related
+app.*.map.json
+
+# Android Studio will place build artifacts here
+/android/app/debug
+/android/app/profile
+/android/app/release
diff --git a/packages/extension_google_sign_in_as_googleapis_auth/example/android/.gitignore b/packages/extension_google_sign_in_as_googleapis_auth/example/android/.gitignore
new file mode 100644
index 000000000000..6f568019d3c6
--- /dev/null
+++ b/packages/extension_google_sign_in_as_googleapis_auth/example/android/.gitignore
@@ -0,0 +1,13 @@
+gradle-wrapper.jar
+/.gradle
+/captures/
+/gradlew
+/gradlew.bat
+/local.properties
+GeneratedPluginRegistrant.java
+
+# Remember to never publicly share your keystore.
+# See https://flutter.dev/docs/deployment/android#reference-the-keystore-from-the-app
+key.properties
+**/*.keystore
+**/*.jks
diff --git a/packages/extension_google_sign_in_as_googleapis_auth/example/android/.project b/packages/extension_google_sign_in_as_googleapis_auth/example/android/.project
new file mode 100644
index 000000000000..92bf3f953359
--- /dev/null
+++ b/packages/extension_google_sign_in_as_googleapis_auth/example/android/.project
@@ -0,0 +1,28 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<projectDescription>
+	<name>android</name>
+	<comment>Project android created by Buildship.</comment>
+	<projects>
+	</projects>
+	<buildSpec>
+		<buildCommand>
+			<name>org.eclipse.buildship.core.gradleprojectbuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
+	</buildSpec>
+	<natures>
+		<nature>org.eclipse.buildship.core.gradleprojectnature</nature>
+	</natures>
+	<filteredResources>
+		<filter>
+			<id>1632349058245</id>
+			<name></name>
+			<type>30</type>
+			<matcher>
+				<id>org.eclipse.core.resources.regexFilterMatcher</id>
+				<arguments>node_modules|.git|__CREATED_BY_JAVA_LANGUAGE_SERVER__</arguments>
+			</matcher>
+		</filter>
+	</filteredResources>
+</projectDescription>
diff --git a/packages/extension_google_sign_in_as_googleapis_auth/example/android/.settings/org.eclipse.buildship.core.prefs b/packages/extension_google_sign_in_as_googleapis_auth/example/android/.settings/org.eclipse.buildship.core.prefs
new file mode 100644
index 000000000000..c9f0a1a9548f
--- /dev/null
+++ b/packages/extension_google_sign_in_as_googleapis_auth/example/android/.settings/org.eclipse.buildship.core.prefs
@@ -0,0 +1,13 @@
+arguments=
+auto.sync=false
+build.scans.enabled=false
+connection.gradle.distribution=GRADLE_DISTRIBUTION(WRAPPER)
+connection.project.dir=
+eclipse.preferences.version=1
+gradle.user.home=
+java.home=/usr/local/buildtools/java/jdk
+jvm.arguments=
+offline.mode=false
+override.workspace.settings=true
+show.console.view=true
+show.executions.view=true
diff --git a/packages/extension_google_sign_in_as_googleapis_auth/example/android/app/.classpath b/packages/extension_google_sign_in_as_googleapis_auth/example/android/app/.classpath
new file mode 100644
index 000000000000..4a04201ca283
--- /dev/null
+++ b/packages/extension_google_sign_in_as_googleapis_auth/example/android/app/.classpath
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<classpath>
+	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-11/"/>
+	<classpathentry kind="con" path="org.eclipse.buildship.core.gradleclasspathcontainer"/>
+	<classpathentry kind="output" path="bin/default"/>
+</classpath>
diff --git a/packages/extension_google_sign_in_as_googleapis_auth/example/android/app/.project b/packages/extension_google_sign_in_as_googleapis_auth/example/android/app/.project
new file mode 100644
index 000000000000..01b3ca2e5042
--- /dev/null
+++ b/packages/extension_google_sign_in_as_googleapis_auth/example/android/app/.project
@@ -0,0 +1,34 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<projectDescription>
+	<name>app</name>
+	<comment>Project app created by Buildship.</comment>
+	<projects>
+	</projects>
+	<buildSpec>
+		<buildCommand>
+			<name>org.eclipse.jdt.core.javabuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
+		<buildCommand>
+			<name>org.eclipse.buildship.core.gradleprojectbuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
+	</buildSpec>
+	<natures>
+		<nature>org.eclipse.jdt.core.javanature</nature>
+		<nature>org.eclipse.buildship.core.gradleprojectnature</nature>
+	</natures>
+	<filteredResources>
+		<filter>
+			<id>1632349058247</id>
+			<name></name>
+			<type>30</type>
+			<matcher>
+				<id>org.eclipse.core.resources.regexFilterMatcher</id>
+				<arguments>node_modules|.git|__CREATED_BY_JAVA_LANGUAGE_SERVER__</arguments>
+			</matcher>
+		</filter>
+	</filteredResources>
+</projectDescription>
diff --git a/packages/extension_google_sign_in_as_googleapis_auth/example/android/app/.settings/org.eclipse.buildship.core.prefs b/packages/extension_google_sign_in_as_googleapis_auth/example/android/app/.settings/org.eclipse.buildship.core.prefs
new file mode 100644
index 000000000000..b1886adb46c0
--- /dev/null
+++ b/packages/extension_google_sign_in_as_googleapis_auth/example/android/app/.settings/org.eclipse.buildship.core.prefs
@@ -0,0 +1,2 @@
+connection.project.dir=..
+eclipse.preferences.version=1
diff --git a/packages/extension_google_sign_in_as_googleapis_auth/example/android/app/build.gradle b/packages/extension_google_sign_in_as_googleapis_auth/example/android/app/build.gradle
old mode 100755
new mode 100644
index 2952c3b9c463..55cb63eeab05
--- a/packages/extension_google_sign_in_as_googleapis_auth/example/android/app/build.gradle
+++ b/packages/extension_google_sign_in_as_googleapis_auth/example/android/app/build.gradle
@@ -22,22 +22,24 @@ if (flutterVersionName == null) {
 }
 
 apply plugin: 'com.android.application'
+apply plugin: 'com.google.gms.google-services'
 apply from: "$flutterRoot/packages/flutter_tools/gradle/flutter.gradle"
 
 android {
-    compileSdkVersion 29
+    compileSdkVersion 30
 
-    lintOptions {
-        disable 'InvalidPackage'
+    compileOptions {
+        sourceCompatibility JavaVersion.VERSION_1_8
+        targetCompatibility JavaVersion.VERSION_1_8
     }
 
     defaultConfig {
+        // TODO: Specify your own unique Application ID (https://developer.android.com/studio/build/application-id.html).
         applicationId "io.flutter.plugins.googlesigninexample"
         minSdkVersion 16
-        targetSdkVersion 28
+        targetSdkVersion 30
         versionCode flutterVersionCode.toInteger()
         versionName flutterVersionName
-        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
     }
 
     buildTypes {
@@ -47,18 +49,8 @@ android {
             signingConfig signingConfigs.debug
         }
     }
-
-    testOptions {
-        unitTests.returnDefaultValues = true
-    }
 }
 
 flutter {
     source '../..'
 }
-
-dependencies {
-    implementation 'com.google.android.gms:play-services-auth:16.0.1'
-    testImplementation'junit:junit:4.12'
-    testImplementation 'org.mockito:mockito-core:2.17.0'
-}
diff --git a/packages/extension_google_sign_in_as_googleapis_auth/example/android/app/google-services.json b/packages/extension_google_sign_in_as_googleapis_auth/example/android/app/google-services.json
index efa524535553..547d3b0dba28 100644
--- a/packages/extension_google_sign_in_as_googleapis_auth/example/android/app/google-services.json
+++ b/packages/extension_google_sign_in_as_googleapis_auth/example/android/app/google-services.json
@@ -243,4 +243,4 @@
     }
   ],
   "configuration_version": "1"
-}
\ No newline at end of file
+}
diff --git a/packages/extension_google_sign_in_as_googleapis_auth/example/android/app/gradle/wrapper/gradle-wrapper.properties b/packages/extension_google_sign_in_as_googleapis_auth/example/android/app/gradle/wrapper/gradle-wrapper.properties
deleted file mode 100644
index 9a4163a4f5ee..000000000000
--- a/packages/extension_google_sign_in_as_googleapis_auth/example/android/app/gradle/wrapper/gradle-wrapper.properties
+++ /dev/null
@@ -1,5 +0,0 @@
-distributionBase=GRADLE_USER_HOME
-distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-4.6-all.zip
-zipStoreBase=GRADLE_USER_HOME
-zipStorePath=wrapper/dists
diff --git a/packages/extension_google_sign_in_as_googleapis_auth/example/android/app/src/debug/AndroidManifest.xml b/packages/extension_google_sign_in_as_googleapis_auth/example/android/app/src/debug/AndroidManifest.xml
new file mode 100644
index 000000000000..c61bfd0dc4aa
--- /dev/null
+++ b/packages/extension_google_sign_in_as_googleapis_auth/example/android/app/src/debug/AndroidManifest.xml
@@ -0,0 +1,7 @@
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="io.flutter.plugins.googlesigninexample">
+    <!-- Flutter needs it to communicate with the running application
+         to allow setting breakpoints, to provide hot reload, etc.
+    -->
+    <uses-permission android:name="android.permission.INTERNET"/>
+</manifest>
diff --git a/packages/extension_google_sign_in_as_googleapis_auth/example/android/app/src/main/AndroidManifest.xml b/packages/extension_google_sign_in_as_googleapis_auth/example/android/app/src/main/AndroidManifest.xml
old mode 100755
new mode 100644
index df80f829c1e7..ea0f36a7faee
--- a/packages/extension_google_sign_in_as_googleapis_auth/example/android/app/src/main/AndroidManifest.xml
+++ b/packages/extension_google_sign_in_as_googleapis_auth/example/android/app/src/main/AndroidManifest.xml
@@ -1,25 +1,32 @@
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
     package="io.flutter.plugins.googlesigninexample">
-
-    <uses-permission android:name="android.permission.INTERNET"/>
-
-    <application>
-        <activity android:name="io.flutter.embedding.android.FlutterActivity"
-                  android:theme="@android:style/Theme.Black.NoTitleBar"
-                  android:configChanges="orientation|keyboardHidden|keyboard|screenSize|locale|layoutDirection"
-                  android:hardwareAccelerated="true"
-                  android:windowSoftInputMode="adjustResize">
+   <application
+        android:label="googlesigninexample"
+        android:icon="@mipmap/ic_launcher">
+        <activity
+            android:name=".MainActivity"
+            android:launchMode="singleTop"
+            android:theme="@style/LaunchTheme"
+            android:configChanges="orientation|keyboardHidden|keyboard|screenSize|smallestScreenSize|locale|layoutDirection|fontScale|screenLayout|density|uiMode"
+            android:hardwareAccelerated="true"
+            android:windowSoftInputMode="adjustResize">
+            <!-- Specifies an Android theme to apply to this Activity as soon as
+                 the Android process has started. This theme is visible to the user
+                 while the Flutter UI initializes. After that, this theme continues
+                 to determine the Window background behind the Flutter UI. -->
+            <meta-data
+              android:name="io.flutter.embedding.android.NormalTheme"
+              android:resource="@style/NormalTheme"
+              />
             <intent-filter>
-                <action android:name="android.intent.action.MAIN" />
-                <category android:name="android.intent.category.LAUNCHER" />
+                <action android:name="android.intent.action.MAIN"/>
+                <category android:name="android.intent.category.LAUNCHER"/>
             </intent-filter>
         </activity>
-        <activity android:name=".EmbeddingV1Activity"
-                  android:theme="@android:style/Theme.Black.NoTitleBar"
-                  android:configChanges="orientation|keyboardHidden|keyboard|screenSize|locale|layoutDirection"
-                  android:hardwareAccelerated="true"
-                  android:windowSoftInputMode="adjustResize">
-        </activity>
-        <meta-data android:name="flutterEmbedding" android:value="2"/>
+        <!-- Don't delete the meta-data below.
+             This is used by the Flutter tool to generate GeneratedPluginRegistrant.java -->
+        <meta-data
+            android:name="flutterEmbedding"
+            android:value="2" />
     </application>
 </manifest>
diff --git a/packages/extension_google_sign_in_as_googleapis_auth/example/android/app/src/main/java/io/flutter/plugins/.gitignore b/packages/extension_google_sign_in_as_googleapis_auth/example/android/app/src/main/java/io/flutter/plugins/.gitignore
deleted file mode 100755
index 9eb4563d2ae1..000000000000
--- a/packages/extension_google_sign_in_as_googleapis_auth/example/android/app/src/main/java/io/flutter/plugins/.gitignore
+++ /dev/null
@@ -1 +0,0 @@
-GeneratedPluginRegistrant.java
diff --git a/packages/extension_google_sign_in_as_googleapis_auth/example/android/app/src/main/java/io/flutter/plugins/googlesigninexample/EmbeddingV1Activity.java b/packages/extension_google_sign_in_as_googleapis_auth/example/android/app/src/main/java/io/flutter/plugins/googlesigninexample/EmbeddingV1Activity.java
deleted file mode 100644
index f61bb72ba9da..000000000000
--- a/packages/extension_google_sign_in_as_googleapis_auth/example/android/app/src/main/java/io/flutter/plugins/googlesigninexample/EmbeddingV1Activity.java
+++ /dev/null
@@ -1,19 +0,0 @@
-// Copyright 2013 The Flutter Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-package io.flutter.plugins.googlesigninexample;
-
-import android.os.Bundle;
-import io.flutter.plugins.googlesignin.GoogleSignInPlugin;
-import io.flutter.view.FlutterMain;
-
-@SuppressWarnings("deprecation")
-public class EmbeddingV1Activity extends io.flutter.app.FlutterActivity {
-  @Override
-  protected void onCreate(Bundle savedInstanceState) {
-    FlutterMain.startInitialization(this);
-    super.onCreate(savedInstanceState);
-    GoogleSignInPlugin.registerWith(registrarFor("io.flutter.plugins.googlesignin"));
-  }
-}
diff --git a/packages/extension_google_sign_in_as_googleapis_auth/example/android/app/src/main/java/io/flutter/plugins/googlesigninexample/EmbeddingV1ActivityTest.java b/packages/extension_google_sign_in_as_googleapis_auth/example/android/app/src/main/java/io/flutter/plugins/googlesigninexample/EmbeddingV1ActivityTest.java
deleted file mode 100644
index cfd2fcec9ec3..000000000000
--- a/packages/extension_google_sign_in_as_googleapis_auth/example/android/app/src/main/java/io/flutter/plugins/googlesigninexample/EmbeddingV1ActivityTest.java
+++ /dev/null
@@ -1,18 +0,0 @@
-// Copyright 2013 The Flutter Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-package io.flutter.plugins.googlesigninexample;
-
-import androidx.test.rule.ActivityTestRule;
-import dev.flutter.plugins.integration_test.FlutterTestRunner;
-import org.junit.Rule;
-import org.junit.runner.RunWith;
-
-@RunWith(FlutterTestRunner.class)
-@SuppressWarnings("deprecation")
-public class EmbeddingV1ActivityTest {
-  @Rule
-  public ActivityTestRule<EmbeddingV1Activity> rule =
-      new ActivityTestRule<>(EmbeddingV1Activity.class);
-}
diff --git a/packages/extension_google_sign_in_as_googleapis_auth/example/android/app/src/main/java/io/flutter/plugins/googlesigninexample/FlutterActivityTest.java b/packages/extension_google_sign_in_as_googleapis_auth/example/android/app/src/main/java/io/flutter/plugins/googlesigninexample/FlutterActivityTest.java
deleted file mode 100644
index 36787ffd9910..000000000000
--- a/packages/extension_google_sign_in_as_googleapis_auth/example/android/app/src/main/java/io/flutter/plugins/googlesigninexample/FlutterActivityTest.java
+++ /dev/null
@@ -1,17 +0,0 @@
-// Copyright 2013 The Flutter Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-package io.flutter.plugins.googlesigninexample;
-
-import androidx.test.rule.ActivityTestRule;
-import dev.flutter.plugins.integration_test.FlutterTestRunner;
-import io.flutter.embedding.android.FlutterActivity;
-import org.junit.Rule;
-import org.junit.runner.RunWith;
-
-@RunWith(FlutterTestRunner.class)
-public class FlutterActivityTest {
-  @Rule
-  public ActivityTestRule<FlutterActivity> rule = new ActivityTestRule<>(FlutterActivity.class);
-}
diff --git a/packages/extension_google_sign_in_as_googleapis_auth/example/android/app/src/main/java/io/flutter/plugins/googlesigninexample/MainActivity.java b/packages/extension_google_sign_in_as_googleapis_auth/example/android/app/src/main/java/io/flutter/plugins/googlesigninexample/MainActivity.java
new file mode 100644
index 000000000000..81ec2f9f9178
--- /dev/null
+++ b/packages/extension_google_sign_in_as_googleapis_auth/example/android/app/src/main/java/io/flutter/plugins/googlesigninexample/MainActivity.java
@@ -0,0 +1,9 @@
+// Copyright 2013 The Flutter Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+package io.flutter.plugins.googlesigninexample;
+
+import io.flutter.embedding.android.FlutterActivity;
+
+public class MainActivity extends FlutterActivity {}
diff --git a/packages/extension_google_sign_in_as_googleapis_auth/example/android/app/src/main/res/drawable-v21/launch_background.xml b/packages/extension_google_sign_in_as_googleapis_auth/example/android/app/src/main/res/drawable-v21/launch_background.xml
new file mode 100644
index 000000000000..f74085f3f6a2
--- /dev/null
+++ b/packages/extension_google_sign_in_as_googleapis_auth/example/android/app/src/main/res/drawable-v21/launch_background.xml
@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Modify this file to customize your launch splash screen -->
+<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
+    <item android:drawable="?android:colorBackground" />
+
+    <!-- You can insert your own image assets here -->
+    <!-- <item>
+        <bitmap
+            android:gravity="center"
+            android:src="@mipmap/launch_image" />
+    </item> -->
+</layer-list>
diff --git a/packages/extension_google_sign_in_as_googleapis_auth/example/android/app/src/main/res/drawable/launch_background.xml b/packages/extension_google_sign_in_as_googleapis_auth/example/android/app/src/main/res/drawable/launch_background.xml
new file mode 100644
index 000000000000..304732f88420
--- /dev/null
+++ b/packages/extension_google_sign_in_as_googleapis_auth/example/android/app/src/main/res/drawable/launch_background.xml
@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Modify this file to customize your launch splash screen -->
+<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
+    <item android:drawable="@android:color/white" />
+
+    <!-- You can insert your own image assets here -->
+    <!-- <item>
+        <bitmap
+            android:gravity="center"
+            android:src="@mipmap/launch_image" />
+    </item> -->
+</layer-list>
diff --git a/packages/extension_google_sign_in_as_googleapis_auth/example/android/app/src/main/res/mipmap-hdpi/ic_launcher.png b/packages/extension_google_sign_in_as_googleapis_auth/example/android/app/src/main/res/mipmap-hdpi/ic_launcher.png
old mode 100755
new mode 100644
diff --git a/packages/extension_google_sign_in_as_googleapis_auth/example/android/app/src/main/res/mipmap-mdpi/ic_launcher.png b/packages/extension_google_sign_in_as_googleapis_auth/example/android/app/src/main/res/mipmap-mdpi/ic_launcher.png
old mode 100755
new mode 100644
diff --git a/packages/extension_google_sign_in_as_googleapis_auth/example/android/app/src/main/res/mipmap-xhdpi/ic_launcher.png b/packages/extension_google_sign_in_as_googleapis_auth/example/android/app/src/main/res/mipmap-xhdpi/ic_launcher.png
old mode 100755
new mode 100644
diff --git a/packages/extension_google_sign_in_as_googleapis_auth/example/android/app/src/main/res/mipmap-xxhdpi/ic_launcher.png b/packages/extension_google_sign_in_as_googleapis_auth/example/android/app/src/main/res/mipmap-xxhdpi/ic_launcher.png
old mode 100755
new mode 100644
diff --git a/packages/extension_google_sign_in_as_googleapis_auth/example/android/app/src/main/res/mipmap-xxxhdpi/ic_launcher.png b/packages/extension_google_sign_in_as_googleapis_auth/example/android/app/src/main/res/mipmap-xxxhdpi/ic_launcher.png
old mode 100755
new mode 100644
diff --git a/packages/extension_google_sign_in_as_googleapis_auth/example/android/app/src/main/res/values-night/styles.xml b/packages/extension_google_sign_in_as_googleapis_auth/example/android/app/src/main/res/values-night/styles.xml
new file mode 100644
index 000000000000..449a9f930826
--- /dev/null
+++ b/packages/extension_google_sign_in_as_googleapis_auth/example/android/app/src/main/res/values-night/styles.xml
@@ -0,0 +1,18 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <!-- Theme applied to the Android Window while the process is starting when the OS's Dark Mode setting is on -->
+    <style name="LaunchTheme" parent="@android:style/Theme.Black.NoTitleBar">
+        <!-- Show a splash screen on the activity. Automatically removed when
+             Flutter draws its first frame -->
+        <item name="android:windowBackground">@drawable/launch_background</item>
+    </style>
+    <!-- Theme applied to the Android Window as soon as the process has started.
+         This theme determines the color of the Android Window while your
+         Flutter UI initializes, as well as behind your Flutter UI while its
+         running.
+         
+         This Theme is only used starting with V2 of Flutter's Android embedding. -->
+    <style name="NormalTheme" parent="@android:style/Theme.Black.NoTitleBar">
+        <item name="android:windowBackground">?android:colorBackground</item>
+    </style>
+</resources>
diff --git a/packages/extension_google_sign_in_as_googleapis_auth/example/android/app/src/main/res/values/strings.xml b/packages/extension_google_sign_in_as_googleapis_auth/example/android/app/src/main/res/values/strings.xml
deleted file mode 100644
index c7e28ffcedd1..000000000000
--- a/packages/extension_google_sign_in_as_googleapis_auth/example/android/app/src/main/res/values/strings.xml
+++ /dev/null
@@ -1,4 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<resources>
-    <string name="default_web_client_id">YOUR_WEB_CLIENT_ID</string>
-</resources>
diff --git a/packages/extension_google_sign_in_as_googleapis_auth/example/android/app/src/main/res/values/styles.xml b/packages/extension_google_sign_in_as_googleapis_auth/example/android/app/src/main/res/values/styles.xml
new file mode 100644
index 000000000000..d74aa35c2826
--- /dev/null
+++ b/packages/extension_google_sign_in_as_googleapis_auth/example/android/app/src/main/res/values/styles.xml
@@ -0,0 +1,18 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <!-- Theme applied to the Android Window while the process is starting when the OS's Dark Mode setting is off -->
+    <style name="LaunchTheme" parent="@android:style/Theme.Light.NoTitleBar">
+        <!-- Show a splash screen on the activity. Automatically removed when
+             Flutter draws its first frame -->
+        <item name="android:windowBackground">@drawable/launch_background</item>
+    </style>
+    <!-- Theme applied to the Android Window as soon as the process has started.
+         This theme determines the color of the Android Window while your
+         Flutter UI initializes, as well as behind your Flutter UI while its
+         running.
+         
+         This Theme is only used starting with V2 of Flutter's Android embedding. -->
+    <style name="NormalTheme" parent="@android:style/Theme.Light.NoTitleBar">
+        <item name="android:windowBackground">?android:colorBackground</item>
+    </style>
+</resources>
diff --git a/packages/extension_google_sign_in_as_googleapis_auth/example/android/app/src/profile/AndroidManifest.xml b/packages/extension_google_sign_in_as_googleapis_auth/example/android/app/src/profile/AndroidManifest.xml
new file mode 100644
index 000000000000..c61bfd0dc4aa
--- /dev/null
+++ b/packages/extension_google_sign_in_as_googleapis_auth/example/android/app/src/profile/AndroidManifest.xml
@@ -0,0 +1,7 @@
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="io.flutter.plugins.googlesigninexample">
+    <!-- Flutter needs it to communicate with the running application
+         to allow setting breakpoints, to provide hot reload, etc.
+    -->
+    <uses-permission android:name="android.permission.INTERNET"/>
+</manifest>
diff --git a/packages/extension_google_sign_in_as_googleapis_auth/example/android/build.gradle b/packages/extension_google_sign_in_as_googleapis_auth/example/android/build.gradle
old mode 100755
new mode 100644
index 541636cc492a..8fc2c011cf88
--- a/packages/extension_google_sign_in_as_googleapis_auth/example/android/build.gradle
+++ b/packages/extension_google_sign_in_as_googleapis_auth/example/android/build.gradle
@@ -1,26 +1,25 @@
 buildscript {
     repositories {
         google()
-        jcenter()
+        mavenCentral()
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:3.3.0'
+        classpath 'com.android.tools.build:gradle:4.1.0'
+        classpath 'com.google.gms:google-services:4.3.5'
     }
 }
 
 allprojects {
     repositories {
         google()
-        jcenter()
+        mavenCentral()
     }
 }
 
 rootProject.buildDir = '../build'
 subprojects {
     project.buildDir = "${rootProject.buildDir}/${project.name}"
-}
-subprojects {
     project.evaluationDependsOn(':app')
 }
 
diff --git a/packages/extension_google_sign_in_as_googleapis_auth/example/android/gradle.properties b/packages/extension_google_sign_in_as_googleapis_auth/example/android/gradle.properties
old mode 100755
new mode 100644
index 38c8d4544ff1..94adc3a3f97a
--- a/packages/extension_google_sign_in_as_googleapis_auth/example/android/gradle.properties
+++ b/packages/extension_google_sign_in_as_googleapis_auth/example/android/gradle.properties
@@ -1,4 +1,3 @@
 org.gradle.jvmargs=-Xmx1536M
-android.enableR8=true
 android.useAndroidX=true
 android.enableJetifier=true
diff --git a/packages/extension_google_sign_in_as_googleapis_auth/example/android/gradle/wrapper/gradle-wrapper.properties b/packages/extension_google_sign_in_as_googleapis_auth/example/android/gradle/wrapper/gradle-wrapper.properties
index 019065d1d650..bc6a58afdda2 100644
--- a/packages/extension_google_sign_in_as_googleapis_auth/example/android/gradle/wrapper/gradle-wrapper.properties
+++ b/packages/extension_google_sign_in_as_googleapis_auth/example/android/gradle/wrapper/gradle-wrapper.properties
@@ -1,5 +1,6 @@
+#Fri Jun 23 08:50:38 CEST 2017
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-4.10.2-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-6.7-all.zip
diff --git a/packages/extension_google_sign_in_as_googleapis_auth/example/android/settings.gradle b/packages/extension_google_sign_in_as_googleapis_auth/example/android/settings.gradle
old mode 100755
new mode 100644
index 115da6cb4f4d..44e62bcf06ae
--- a/packages/extension_google_sign_in_as_googleapis_auth/example/android/settings.gradle
+++ b/packages/extension_google_sign_in_as_googleapis_auth/example/android/settings.gradle
@@ -1,15 +1,11 @@
 include ':app'
 
-def flutterProjectRoot = rootProject.projectDir.parentFile.toPath()
+def localPropertiesFile = new File(rootProject.projectDir, "local.properties")
+def properties = new Properties()
 
-def plugins = new Properties()
-def pluginsFile = new File(flutterProjectRoot.toFile(), '.flutter-plugins')
-if (pluginsFile.exists()) {
-    pluginsFile.withInputStream { stream -> plugins.load(stream) }
-}
+assert localPropertiesFile.exists()
+localPropertiesFile.withReader("UTF-8") { reader -> properties.load(reader) }
 
-plugins.each { name, path ->
-    def pluginDirectory = flutterProjectRoot.resolve(path).resolve('android').toFile()
-    include ":$name"
-    project(":$name").projectDir = pluginDirectory
-}
+def flutterSdkPath = properties.getProperty("flutter.sdk")
+assert flutterSdkPath != null, "flutter.sdk not set in local.properties"
+apply from: "$flutterSdkPath/packages/flutter_tools/gradle/app_plugin_loader.gradle"
diff --git a/packages/extension_google_sign_in_as_googleapis_auth/example/ios/.gitignore b/packages/extension_google_sign_in_as_googleapis_auth/example/ios/.gitignore
new file mode 100644
index 000000000000..151026b91bc9
--- /dev/null
+++ b/packages/extension_google_sign_in_as_googleapis_auth/example/ios/.gitignore
@@ -0,0 +1,33 @@
+*.mode1v3
+*.mode2v3
+*.moved-aside
+*.pbxuser
+*.perspectivev3
+**/*sync/
+.sconsign.dblite
+.tags*
+**/.vagrant/
+**/DerivedData/
+Icon?
+**/Pods/
+**/.symlinks/
+profile
+xcuserdata
+**/.generated/
+Flutter/App.framework
+Flutter/Flutter.framework
+Flutter/Flutter.podspec
+Flutter/Generated.xcconfig
+Flutter/ephemeral/
+Flutter/app.flx
+Flutter/app.zip
+Flutter/flutter_assets/
+Flutter/flutter_export_environment.sh
+ServiceDefinitions.json
+Runner/GeneratedPluginRegistrant.*
+
+# Exceptions to above rules.
+!default.mode1v3
+!default.mode2v3
+!default.pbxuser
+!default.perspectivev3
diff --git a/packages/extension_google_sign_in_as_googleapis_auth/example/ios/Flutter/AppFrameworkInfo.plist b/packages/extension_google_sign_in_as_googleapis_auth/example/ios/Flutter/AppFrameworkInfo.plist
old mode 100755
new mode 100644
index 6c2de8086bcd..8d4492f977ad
--- a/packages/extension_google_sign_in_as_googleapis_auth/example/ios/Flutter/AppFrameworkInfo.plist
+++ b/packages/extension_google_sign_in_as_googleapis_auth/example/ios/Flutter/AppFrameworkInfo.plist
@@ -20,11 +20,7 @@
   <string>????</string>
   <key>CFBundleVersion</key>
   <string>1.0</string>
-  <key>UIRequiredDeviceCapabilities</key>
-  <array>
-    <string>arm64</string>
-  </array>
   <key>MinimumOSVersion</key>
-  <string>8.0</string>
+  <string>9.0</string>
 </dict>
 </plist>
diff --git a/packages/extension_google_sign_in_as_googleapis_auth/example/ios/Flutter/Debug.xcconfig b/packages/extension_google_sign_in_as_googleapis_auth/example/ios/Flutter/Debug.xcconfig
old mode 100755
new mode 100644
index 9803018ca79d..592ceee85b89
--- a/packages/extension_google_sign_in_as_googleapis_auth/example/ios/Flutter/Debug.xcconfig
+++ b/packages/extension_google_sign_in_as_googleapis_auth/example/ios/Flutter/Debug.xcconfig
@@ -1,2 +1 @@
 #include "Generated.xcconfig"
-#include "Pods/Target Support Files/Pods-Runner/Pods-Runner.debug.xcconfig"
diff --git a/packages/extension_google_sign_in_as_googleapis_auth/example/ios/Flutter/Release.xcconfig b/packages/extension_google_sign_in_as_googleapis_auth/example/ios/Flutter/Release.xcconfig
old mode 100755
new mode 100644
index a4a8c604e13d..592ceee85b89
--- a/packages/extension_google_sign_in_as_googleapis_auth/example/ios/Flutter/Release.xcconfig
+++ b/packages/extension_google_sign_in_as_googleapis_auth/example/ios/Flutter/Release.xcconfig
@@ -1,2 +1 @@
 #include "Generated.xcconfig"
-#include "Pods/Target Support Files/Pods-Runner/Pods-Runner.release.xcconfig"
diff --git a/packages/extension_google_sign_in_as_googleapis_auth/example/ios/GoogleSignInPluginTest/Info.plist b/packages/extension_google_sign_in_as_googleapis_auth/example/ios/GoogleSignInPluginTest/Info.plist
deleted file mode 100644
index 64d65ca49577..000000000000
--- a/packages/extension_google_sign_in_as_googleapis_auth/example/ios/GoogleSignInPluginTest/Info.plist
+++ /dev/null
@@ -1,22 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
-<plist version="1.0">
-<dict>
-	<key>CFBundleDevelopmentRegion</key>
-	<string>$(DEVELOPMENT_LANGUAGE)</string>
-	<key>CFBundleExecutable</key>
-	<string>$(EXECUTABLE_NAME)</string>
-	<key>CFBundleIdentifier</key>
-	<string>$(PRODUCT_BUNDLE_IDENTIFIER)</string>
-	<key>CFBundleInfoDictionaryVersion</key>
-	<string>6.0</string>
-	<key>CFBundleName</key>
-	<string>$(PRODUCT_NAME)</string>
-	<key>CFBundlePackageType</key>
-	<string>$(PRODUCT_BUNDLE_PACKAGE_TYPE)</string>
-	<key>CFBundleShortVersionString</key>
-	<string>1.0</string>
-	<key>CFBundleVersion</key>
-	<string>1</string>
-</dict>
-</plist>
diff --git a/packages/extension_google_sign_in_as_googleapis_auth/example/ios/Runner.xcodeproj/project.pbxproj b/packages/extension_google_sign_in_as_googleapis_auth/example/ios/Runner.xcodeproj/project.pbxproj
index 72aaf05b41b2..e34694812308 100644
--- a/packages/extension_google_sign_in_as_googleapis_auth/example/ios/Runner.xcodeproj/project.pbxproj
+++ b/packages/extension_google_sign_in_as_googleapis_auth/example/ios/Runner.xcodeproj/project.pbxproj
@@ -3,19 +3,17 @@
 	archiveVersion = 1;
 	classes = {
 	};
-	objectVersion = 46;
+	objectVersion = 50;
 	objects = {
 
 /* Begin PBXBuildFile section */
-		5C6F5A6E1EC3B4CB008D64B5 /* GeneratedPluginRegistrant.m in Sources */ = {isa = PBXBuildFile; fileRef = 5C6F5A6D1EC3B4CB008D64B5 /* GeneratedPluginRegistrant.m */; };
-		7A303C2E1E89D76400B1F19E /* GoogleService-Info.plist in Resources */ = {isa = PBXBuildFile; fileRef = 7A303C2D1E89D76400B1F19E /* GoogleService-Info.plist */; };
-		7ACDFB0E1E8944C400BE2D00 /* AppFrameworkInfo.plist in Resources */ = {isa = PBXBuildFile; fileRef = 7ACDFB0D1E8944C400BE2D00 /* AppFrameworkInfo.plist */; };
+		1498D2341E8E89220040F4C2 /* GeneratedPluginRegistrant.m in Sources */ = {isa = PBXBuildFile; fileRef = 1498D2331E8E89220040F4C2 /* GeneratedPluginRegistrant.m */; };
+		3B3967161E833CAA004F5970 /* AppFrameworkInfo.plist in Resources */ = {isa = PBXBuildFile; fileRef = 3B3967151E833CAA004F5970 /* AppFrameworkInfo.plist */; };
 		978B8F6F1D3862AE00F588F7 /* AppDelegate.m in Sources */ = {isa = PBXBuildFile; fileRef = 7AFFD8EE1D35381100E5BB4D /* AppDelegate.m */; };
 		97C146F31CF9000F007C117D /* main.m in Sources */ = {isa = PBXBuildFile; fileRef = 97C146F21CF9000F007C117D /* main.m */; };
 		97C146FC1CF9000F007C117D /* Main.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 97C146FA1CF9000F007C117D /* Main.storyboard */; };
 		97C146FE1CF9000F007C117D /* Assets.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = 97C146FD1CF9000F007C117D /* Assets.xcassets */; };
 		97C147011CF9000F007C117D /* LaunchScreen.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 97C146FF1CF9000F007C117D /* LaunchScreen.storyboard */; };
-		C2FB9CBA01DB0A2DE5F31E12 /* libPods-Runner.a in Frameworks */ = {isa = PBXBuildFile; fileRef = 0263E28FA425D1CE928BDE15 /* libPods-Runner.a */; };
 /* End PBXBuildFile section */
 
 /* Begin PBXCopyFilesBuildPhase section */
@@ -32,12 +30,9 @@
 /* End PBXCopyFilesBuildPhase section */
 
 /* Begin PBXFileReference section */
-		0263E28FA425D1CE928BDE15 /* libPods-Runner.a */ = {isa = PBXFileReference; explicitFileType = archive.ar; includeInIndex = 0; path = "libPods-Runner.a"; sourceTree = BUILT_PRODUCTS_DIR; };
-		5A76713E622F06379AEDEBFA /* Pods-Runner.debug.xcconfig */ = {isa = PBXFileReference; includeInIndex = 1; lastKnownFileType = text.xcconfig; name = "Pods-Runner.debug.xcconfig"; path = "Pods/Target Support Files/Pods-Runner/Pods-Runner.debug.xcconfig"; sourceTree = "<group>"; };
-		5C6F5A6C1EC3B4CB008D64B5 /* GeneratedPluginRegistrant.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = GeneratedPluginRegistrant.h; sourceTree = "<group>"; };
-		5C6F5A6D1EC3B4CB008D64B5 /* GeneratedPluginRegistrant.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = GeneratedPluginRegistrant.m; sourceTree = "<group>"; };
-		7A303C2D1E89D76400B1F19E /* GoogleService-Info.plist */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text.plist.xml; path = "GoogleService-Info.plist"; sourceTree = "<group>"; };
-		7ACDFB0D1E8944C400BE2D00 /* AppFrameworkInfo.plist */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text.plist.xml; name = AppFrameworkInfo.plist; path = Flutter/AppFrameworkInfo.plist; sourceTree = "<group>"; };
+		1498D2321E8E86230040F4C2 /* GeneratedPluginRegistrant.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = GeneratedPluginRegistrant.h; sourceTree = "<group>"; };
+		1498D2331E8E89220040F4C2 /* GeneratedPluginRegistrant.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = GeneratedPluginRegistrant.m; sourceTree = "<group>"; };
+		3B3967151E833CAA004F5970 /* AppFrameworkInfo.plist */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text.plist.xml; name = AppFrameworkInfo.plist; path = Flutter/AppFrameworkInfo.plist; sourceTree = "<group>"; };
 		7AFA3C8E1D35360C0083082E /* Release.xcconfig */ = {isa = PBXFileReference; lastKnownFileType = text.xcconfig; name = Release.xcconfig; path = Flutter/Release.xcconfig; sourceTree = "<group>"; };
 		7AFFD8ED1D35381100E5BB4D /* AppDelegate.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = AppDelegate.h; sourceTree = "<group>"; };
 		7AFFD8EE1D35381100E5BB4D /* AppDelegate.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = AppDelegate.m; sourceTree = "<group>"; };
@@ -49,7 +44,6 @@
 		97C146FD1CF9000F007C117D /* Assets.xcassets */ = {isa = PBXFileReference; lastKnownFileType = folder.assetcatalog; path = Assets.xcassets; sourceTree = "<group>"; };
 		97C147001CF9000F007C117D /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.storyboard; name = Base; path = Base.lproj/LaunchScreen.storyboard; sourceTree = "<group>"; };
 		97C147021CF9000F007C117D /* Info.plist */ = {isa = PBXFileReference; lastKnownFileType = text.plist.xml; path = Info.plist; sourceTree = "<group>"; };
-		F582639B44581540871D9BB0 /* Pods-Runner.release.xcconfig */ = {isa = PBXFileReference; includeInIndex = 1; lastKnownFileType = text.xcconfig; name = "Pods-Runner.release.xcconfig"; path = "Pods/Target Support Files/Pods-Runner/Pods-Runner.release.xcconfig"; sourceTree = "<group>"; };
 /* End PBXFileReference section */
 
 /* Begin PBXFrameworksBuildPhase section */
@@ -57,26 +51,16 @@
 			isa = PBXFrameworksBuildPhase;
 			buildActionMask = 2147483647;
 			files = (
-				C2FB9CBA01DB0A2DE5F31E12 /* libPods-Runner.a in Frameworks */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};
 /* End PBXFrameworksBuildPhase section */
 
 /* Begin PBXGroup section */
-		840012C8B5EDBCF56B0E4AC1 /* Pods */ = {
-			isa = PBXGroup;
-			children = (
-				5A76713E622F06379AEDEBFA /* Pods-Runner.debug.xcconfig */,
-				F582639B44581540871D9BB0 /* Pods-Runner.release.xcconfig */,
-			);
-			name = Pods;
-			sourceTree = "<group>";
-		};
 		9740EEB11CF90186004384FC /* Flutter */ = {
 			isa = PBXGroup;
 			children = (
-				7ACDFB0D1E8944C400BE2D00 /* AppFrameworkInfo.plist */,
+				3B3967151E833CAA004F5970 /* AppFrameworkInfo.plist */,
 				9740EEB21CF90195004384FC /* Debug.xcconfig */,
 				7AFA3C8E1D35360C0083082E /* Release.xcconfig */,
 				9740EEB31CF90195004384FC /* Generated.xcconfig */,
@@ -90,8 +74,6 @@
 				9740EEB11CF90186004384FC /* Flutter */,
 				97C146F01CF9000F007C117D /* Runner */,
 				97C146EF1CF9000F007C117D /* Products */,
-				840012C8B5EDBCF56B0E4AC1 /* Pods */,
-				CF3B75C9A7D2FA2A4C99F110 /* Frameworks */,
 			);
 			sourceTree = "<group>";
 		};
@@ -106,16 +88,15 @@
 		97C146F01CF9000F007C117D /* Runner */ = {
 			isa = PBXGroup;
 			children = (
-				5C6F5A6C1EC3B4CB008D64B5 /* GeneratedPluginRegistrant.h */,
-				5C6F5A6D1EC3B4CB008D64B5 /* GeneratedPluginRegistrant.m */,
 				7AFFD8ED1D35381100E5BB4D /* AppDelegate.h */,
 				7AFFD8EE1D35381100E5BB4D /* AppDelegate.m */,
 				97C146FA1CF9000F007C117D /* Main.storyboard */,
 				97C146FD1CF9000F007C117D /* Assets.xcassets */,
 				97C146FF1CF9000F007C117D /* LaunchScreen.storyboard */,
-				7A303C2D1E89D76400B1F19E /* GoogleService-Info.plist */,
 				97C147021CF9000F007C117D /* Info.plist */,
 				97C146F11CF9000F007C117D /* Supporting Files */,
+				1498D2321E8E86230040F4C2 /* GeneratedPluginRegistrant.h */,
+				1498D2331E8E89220040F4C2 /* GeneratedPluginRegistrant.m */,
 			);
 			path = Runner;
 			sourceTree = "<group>";
@@ -128,14 +109,6 @@
 			name = "Supporting Files";
 			sourceTree = "<group>";
 		};
-		CF3B75C9A7D2FA2A4C99F110 /* Frameworks */ = {
-			isa = PBXGroup;
-			children = (
-				0263E28FA425D1CE928BDE15 /* libPods-Runner.a */,
-			);
-			name = Frameworks;
-			sourceTree = "<group>";
-		};
 /* End PBXGroup section */
 
 /* Begin PBXNativeTarget section */
@@ -143,14 +116,11 @@
 			isa = PBXNativeTarget;
 			buildConfigurationList = 97C147051CF9000F007C117D /* Build configuration list for PBXNativeTarget "Runner" */;
 			buildPhases = (
-				AB1344B0443C71CD721E1BB7 /* [CP] Check Pods Manifest.lock */,
 				9740EEB61CF901F6004384FC /* Run Script */,
 				97C146EA1CF9000F007C117D /* Sources */,
 				97C146EB1CF9000F007C117D /* Frameworks */,
 				97C146EC1CF9000F007C117D /* Resources */,
 				9705A1C41CF9048500538489 /* Embed Frameworks */,
-				95BB15E9E1769C0D146AA592 /* [CP] Embed Pods Frameworks */,
-				532EA9D341340B1DCD08293D /* [CP] Copy Pods Resources */,
 				3B06AD1E1E4923F5004D2608 /* Thin Binary */,
 			);
 			buildRules = (
@@ -168,8 +138,8 @@
 		97C146E61CF9000F007C117D /* Project object */ = {
 			isa = PBXProject;
 			attributes = {
-				LastUpgradeCheck = 1100;
-				ORGANIZATIONNAME = "The Flutter Authors";
+				LastUpgradeCheck = 1300;
+				ORGANIZATIONNAME = "";
 				TargetAttributes = {
 					97C146ED1CF9000F007C117D = {
 						CreatedOnToolsVersion = 7.3.1;
@@ -177,7 +147,7 @@
 				};
 			};
 			buildConfigurationList = 97C146E91CF9000F007C117D /* Build configuration list for PBXProject "Runner" */;
-			compatibilityVersion = "Xcode 3.2";
+			compatibilityVersion = "Xcode 9.3";
 			developmentRegion = en;
 			hasScannedForEncodings = 0;
 			knownRegions = (
@@ -199,9 +169,8 @@
 			isa = PBXResourcesBuildPhase;
 			buildActionMask = 2147483647;
 			files = (
-				7A303C2E1E89D76400B1F19E /* GoogleService-Info.plist in Resources */,
 				97C147011CF9000F007C117D /* LaunchScreen.storyboard in Resources */,
-				7ACDFB0E1E8944C400BE2D00 /* AppFrameworkInfo.plist in Resources */,
+				3B3967161E833CAA004F5970 /* AppFrameworkInfo.plist in Resources */,
 				97C146FE1CF9000F007C117D /* Assets.xcassets in Resources */,
 				97C146FC1CF9000F007C117D /* Main.storyboard in Resources */,
 			);
@@ -222,43 +191,7 @@
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 			shellPath = /bin/sh;
-			shellScript = "/bin/sh \"$FLUTTER_ROOT/packages/flutter_tools/bin/xcode_backend.sh\" embed\n/bin/sh \"$FLUTTER_ROOT/packages/flutter_tools/bin/xcode_backend.sh\" thin\n";
-		};
-		532EA9D341340B1DCD08293D /* [CP] Copy Pods Resources */ = {
-			isa = PBXShellScriptBuildPhase;
-			buildActionMask = 2147483647;
-			files = (
-			);
-			inputPaths = (
-				"${PODS_ROOT}/Target Support Files/Pods-Runner/Pods-Runner-resources.sh",
-				"${PODS_ROOT}/GoogleSignIn/Resources/GoogleSignIn.bundle",
-			);
-			name = "[CP] Copy Pods Resources";
-			outputPaths = (
-				"${TARGET_BUILD_DIR}/${UNLOCALIZED_RESOURCES_FOLDER_PATH}/GoogleSignIn.bundle",
-			);
-			runOnlyForDeploymentPostprocessing = 0;
-			shellPath = /bin/sh;
-			shellScript = "\"${PODS_ROOT}/Target Support Files/Pods-Runner/Pods-Runner-resources.sh\"\n";
-			showEnvVarsInLog = 0;
-		};
-		95BB15E9E1769C0D146AA592 /* [CP] Embed Pods Frameworks */ = {
-			isa = PBXShellScriptBuildPhase;
-			buildActionMask = 2147483647;
-			files = (
-			);
-			inputPaths = (
-				"${PODS_ROOT}/Target Support Files/Pods-Runner/Pods-Runner-frameworks.sh",
-				"${PODS_ROOT}/../Flutter/Flutter.framework",
-			);
-			name = "[CP] Embed Pods Frameworks";
-			outputPaths = (
-				"${TARGET_BUILD_DIR}/${FRAMEWORKS_FOLDER_PATH}/Flutter.framework",
-			);
-			runOnlyForDeploymentPostprocessing = 0;
-			shellPath = /bin/sh;
-			shellScript = "\"${PODS_ROOT}/Target Support Files/Pods-Runner/Pods-Runner-frameworks.sh\"\n";
-			showEnvVarsInLog = 0;
+			shellScript = "/bin/sh \"$FLUTTER_ROOT/packages/flutter_tools/bin/xcode_backend.sh\" embed_and_thin";
 		};
 		9740EEB61CF901F6004384FC /* Run Script */ = {
 			isa = PBXShellScriptBuildPhase;
@@ -274,24 +207,6 @@
 			shellPath = /bin/sh;
 			shellScript = "/bin/sh \"$FLUTTER_ROOT/packages/flutter_tools/bin/xcode_backend.sh\" build";
 		};
-		AB1344B0443C71CD721E1BB7 /* [CP] Check Pods Manifest.lock */ = {
-			isa = PBXShellScriptBuildPhase;
-			buildActionMask = 2147483647;
-			files = (
-			);
-			inputPaths = (
-				"${PODS_PODFILE_DIR_PATH}/Podfile.lock",
-				"${PODS_ROOT}/Manifest.lock",
-			);
-			name = "[CP] Check Pods Manifest.lock";
-			outputPaths = (
-				"$(DERIVED_FILE_DIR)/Pods-Runner-checkManifestLockResult.txt",
-			);
-			runOnlyForDeploymentPostprocessing = 0;
-			shellPath = /bin/sh;
-			shellScript = "diff \"${PODS_PODFILE_DIR_PATH}/Podfile.lock\" \"${PODS_ROOT}/Manifest.lock\" > /dev/null\nif [ $? != 0 ] ; then\n    # print error to STDERR\n    echo \"error: The sandbox is not in sync with the Podfile.lock. Run 'pod install' or update your CocoaPods installation.\" >&2\n    exit 1\nfi\n# This output is used by Xcode 'outputs' to avoid re-running this script phase.\necho \"SUCCESS\" > \"${SCRIPT_OUTPUT_FILE_0}\"\n";
-			showEnvVarsInLog = 0;
-		};
 /* End PBXShellScriptBuildPhase section */
 
 /* Begin PBXSourcesBuildPhase section */
@@ -301,7 +216,7 @@
 			files = (
 				978B8F6F1D3862AE00F588F7 /* AppDelegate.m in Sources */,
 				97C146F31CF9000F007C117D /* main.m in Sources */,
-				5C6F5A6E1EC3B4CB008D64B5 /* GeneratedPluginRegistrant.m in Sources */,
+				1498D2341E8E89220040F4C2 /* GeneratedPluginRegistrant.m in Sources */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};
@@ -327,11 +242,78 @@
 /* End PBXVariantGroup section */
 
 /* Begin XCBuildConfiguration section */
+		249021D3217E4FDB00AE95B9 /* Profile */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ALWAYS_SEARCH_USER_PATHS = NO;
+				CLANG_ANALYZER_NONNULL = YES;
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++0x";
+				CLANG_CXX_LIBRARY = "libc++";
+				CLANG_ENABLE_MODULES = YES;
+				CLANG_ENABLE_OBJC_ARC = YES;
+				CLANG_WARN_BLOCK_CAPTURE_AUTORELEASING = YES;
+				CLANG_WARN_BOOL_CONVERSION = YES;
+				CLANG_WARN_COMMA = YES;
+				CLANG_WARN_CONSTANT_CONVERSION = YES;
+				CLANG_WARN_DEPRECATED_OBJC_IMPLEMENTATIONS = YES;
+				CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
+				CLANG_WARN_EMPTY_BODY = YES;
+				CLANG_WARN_ENUM_CONVERSION = YES;
+				CLANG_WARN_INFINITE_RECURSION = YES;
+				CLANG_WARN_INT_CONVERSION = YES;
+				CLANG_WARN_NON_LITERAL_NULL_CONVERSION = YES;
+				CLANG_WARN_OBJC_IMPLICIT_RETAIN_SELF = YES;
+				CLANG_WARN_OBJC_LITERAL_CONVERSION = YES;
+				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
+				CLANG_WARN_RANGE_LOOP_ANALYSIS = YES;
+				CLANG_WARN_STRICT_PROTOTYPES = YES;
+				CLANG_WARN_SUSPICIOUS_MOVE = YES;
+				CLANG_WARN_UNREACHABLE_CODE = YES;
+				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
+				"CODE_SIGN_IDENTITY[sdk=iphoneos*]" = "iPhone Developer";
+				COPY_PHASE_STRIP = NO;
+				DEBUG_INFORMATION_FORMAT = "dwarf-with-dsym";
+				ENABLE_NS_ASSERTIONS = NO;
+				ENABLE_STRICT_OBJC_MSGSEND = YES;
+				GCC_C_LANGUAGE_STANDARD = gnu99;
+				GCC_NO_COMMON_BLOCKS = YES;
+				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
+				GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
+				GCC_WARN_UNDECLARED_SELECTOR = YES;
+				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
+				GCC_WARN_UNUSED_FUNCTION = YES;
+				GCC_WARN_UNUSED_VARIABLE = YES;
+				IPHONEOS_DEPLOYMENT_TARGET = 9.0;
+				MTL_ENABLE_DEBUG_INFO = NO;
+				SDKROOT = iphoneos;
+				SUPPORTED_PLATFORMS = iphoneos;
+				TARGETED_DEVICE_FAMILY = "1,2";
+				VALIDATE_PRODUCT = YES;
+			};
+			name = Profile;
+		};
+		249021D4217E4FDB00AE95B9 /* Profile */ = {
+			isa = XCBuildConfiguration;
+			baseConfigurationReference = 7AFA3C8E1D35360C0083082E /* Release.xcconfig */;
+			buildSettings = {
+				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				CURRENT_PROJECT_VERSION = "$(FLUTTER_BUILD_NUMBER)";
+				ENABLE_BITCODE = NO;
+				INFOPLIST_FILE = Runner/Info.plist;
+				LD_RUNPATH_SEARCH_PATHS = (
+					"$(inherited)",
+					"@executable_path/Frameworks",
+				);
+				PRODUCT_BUNDLE_IDENTIFIER = io.flutter.plugins.googlesigninexample;
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				VERSIONING_SYSTEM = "apple-generic";
+			};
+			name = Profile;
+		};
 		97C147031CF9000F007C117D /* Debug */ = {
 			isa = XCBuildConfiguration;
 			buildSettings = {
 				ALWAYS_SEARCH_USER_PATHS = NO;
-				CLANG_ANALYZER_LOCALIZABILITY_NONLOCALIZED = YES;
 				CLANG_ANALYZER_NONNULL = YES;
 				CLANG_CXX_LANGUAGE_STANDARD = "gnu++0x";
 				CLANG_CXX_LIBRARY = "libc++";
@@ -375,7 +357,7 @@
 				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
 				GCC_WARN_UNUSED_FUNCTION = YES;
 				GCC_WARN_UNUSED_VARIABLE = YES;
-				IPHONEOS_DEPLOYMENT_TARGET = 8.0;
+				IPHONEOS_DEPLOYMENT_TARGET = 9.0;
 				MTL_ENABLE_DEBUG_INFO = YES;
 				ONLY_ACTIVE_ARCH = YES;
 				SDKROOT = iphoneos;
@@ -387,7 +369,6 @@
 			isa = XCBuildConfiguration;
 			buildSettings = {
 				ALWAYS_SEARCH_USER_PATHS = NO;
-				CLANG_ANALYZER_LOCALIZABILITY_NONLOCALIZED = YES;
 				CLANG_ANALYZER_NONNULL = YES;
 				CLANG_CXX_LANGUAGE_STANDARD = "gnu++0x";
 				CLANG_CXX_LIBRARY = "libc++";
@@ -425,9 +406,10 @@
 				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
 				GCC_WARN_UNUSED_FUNCTION = YES;
 				GCC_WARN_UNUSED_VARIABLE = YES;
-				IPHONEOS_DEPLOYMENT_TARGET = 8.0;
+				IPHONEOS_DEPLOYMENT_TARGET = 9.0;
 				MTL_ENABLE_DEBUG_INFO = NO;
 				SDKROOT = iphoneos;
+				SUPPORTED_PLATFORMS = iphoneos;
 				TARGETED_DEVICE_FAMILY = "1,2";
 				VALIDATE_PRODUCT = YES;
 			};
@@ -438,19 +420,16 @@
 			baseConfigurationReference = 9740EEB21CF90195004384FC /* Debug.xcconfig */;
 			buildSettings = {
 				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				CURRENT_PROJECT_VERSION = "$(FLUTTER_BUILD_NUMBER)";
 				ENABLE_BITCODE = NO;
-				FRAMEWORK_SEARCH_PATHS = (
-					"$(inherited)",
-					"$(PROJECT_DIR)/Flutter",
-				);
 				INFOPLIST_FILE = Runner/Info.plist;
-				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks";
-				LIBRARY_SEARCH_PATHS = (
+				LD_RUNPATH_SEARCH_PATHS = (
 					"$(inherited)",
-					"$(PROJECT_DIR)/Flutter",
+					"@executable_path/Frameworks",
 				);
-				PRODUCT_BUNDLE_IDENTIFIER = io.flutter.plugins.googleSignInExample;
+				PRODUCT_BUNDLE_IDENTIFIER = io.flutter.plugins.googlesigninexample;
 				PRODUCT_NAME = "$(TARGET_NAME)";
+				VERSIONING_SYSTEM = "apple-generic";
 			};
 			name = Debug;
 		};
@@ -459,19 +438,16 @@
 			baseConfigurationReference = 7AFA3C8E1D35360C0083082E /* Release.xcconfig */;
 			buildSettings = {
 				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				CURRENT_PROJECT_VERSION = "$(FLUTTER_BUILD_NUMBER)";
 				ENABLE_BITCODE = NO;
-				FRAMEWORK_SEARCH_PATHS = (
-					"$(inherited)",
-					"$(PROJECT_DIR)/Flutter",
-				);
 				INFOPLIST_FILE = Runner/Info.plist;
-				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks";
-				LIBRARY_SEARCH_PATHS = (
+				LD_RUNPATH_SEARCH_PATHS = (
 					"$(inherited)",
-					"$(PROJECT_DIR)/Flutter",
+					"@executable_path/Frameworks",
 				);
-				PRODUCT_BUNDLE_IDENTIFIER = io.flutter.plugins.googleSignInExample;
+				PRODUCT_BUNDLE_IDENTIFIER = io.flutter.plugins.googlesigninexample;
 				PRODUCT_NAME = "$(TARGET_NAME)";
+				VERSIONING_SYSTEM = "apple-generic";
 			};
 			name = Release;
 		};
@@ -483,6 +459,7 @@
 			buildConfigurations = (
 				97C147031CF9000F007C117D /* Debug */,
 				97C147041CF9000F007C117D /* Release */,
+				249021D3217E4FDB00AE95B9 /* Profile */,
 			);
 			defaultConfigurationIsVisible = 0;
 			defaultConfigurationName = Release;
@@ -492,6 +469,7 @@
 			buildConfigurations = (
 				97C147061CF9000F007C117D /* Debug */,
 				97C147071CF9000F007C117D /* Release */,
+				249021D4217E4FDB00AE95B9 /* Profile */,
 			);
 			defaultConfigurationIsVisible = 0;
 			defaultConfigurationName = Release;
diff --git a/packages/extension_google_sign_in_as_googleapis_auth/example/ios/Runner.xcodeproj/project.xcworkspace/contents.xcworkspacedata b/packages/extension_google_sign_in_as_googleapis_auth/example/ios/Runner.xcodeproj/project.xcworkspace/contents.xcworkspacedata
old mode 100755
new mode 100644
index 21a3cc14c74e..919434a6254f
--- a/packages/extension_google_sign_in_as_googleapis_auth/example/ios/Runner.xcodeproj/project.xcworkspace/contents.xcworkspacedata
+++ b/packages/extension_google_sign_in_as_googleapis_auth/example/ios/Runner.xcodeproj/project.xcworkspace/contents.xcworkspacedata
@@ -2,9 +2,6 @@
 <Workspace
    version = "1.0">
    <FileRef
-      location = "group:Runner.xcodeproj">
-   </FileRef>
-   <FileRef
-      location = "group:Pods/Pods.xcodeproj">
+      location = "self:">
    </FileRef>
 </Workspace>
diff --git a/packages/extension_google_sign_in_as_googleapis_auth/example/ios/Runner.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist b/packages/extension_google_sign_in_as_googleapis_auth/example/ios/Runner.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist
new file mode 100644
index 000000000000..18d981003d68
--- /dev/null
+++ b/packages/extension_google_sign_in_as_googleapis_auth/example/ios/Runner.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>IDEDidComputeMac32BitWarning</key>
+	<true/>
+</dict>
+</plist>
diff --git a/packages/extension_google_sign_in_as_googleapis_auth/example/ios/Runner.xcodeproj/project.xcworkspace/xcshareddata/WorkspaceSettings.xcsettings b/packages/extension_google_sign_in_as_googleapis_auth/example/ios/Runner.xcodeproj/project.xcworkspace/xcshareddata/WorkspaceSettings.xcsettings
new file mode 100644
index 000000000000..f9b0d7c5ea15
--- /dev/null
+++ b/packages/extension_google_sign_in_as_googleapis_auth/example/ios/Runner.xcodeproj/project.xcworkspace/xcshareddata/WorkspaceSettings.xcsettings
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>PreviewsEnabled</key>
+	<false/>
+</dict>
+</plist>
diff --git a/packages/extension_google_sign_in_as_googleapis_auth/example/ios/Runner.xcodeproj/xcshareddata/xcschemes/Runner.xcscheme b/packages/extension_google_sign_in_as_googleapis_auth/example/ios/Runner.xcodeproj/xcshareddata/xcschemes/Runner.xcscheme
old mode 100755
new mode 100644
index 3bb3697ef41c..c87d15a33520
--- a/packages/extension_google_sign_in_as_googleapis_auth/example/ios/Runner.xcodeproj/xcshareddata/xcschemes/Runner.xcscheme
+++ b/packages/extension_google_sign_in_as_googleapis_auth/example/ios/Runner.xcodeproj/xcshareddata/xcschemes/Runner.xcscheme
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <Scheme
-   LastUpgradeVersion = "1100"
+   LastUpgradeVersion = "1300"
    version = "1.3">
    <BuildAction
       parallelizeBuildables = "YES"
@@ -61,7 +61,7 @@
       </BuildableProductRunnable>
    </LaunchAction>
    <ProfileAction
-      buildConfiguration = "Release"
+      buildConfiguration = "Profile"
       shouldUseLaunchSchemeArgsEnv = "YES"
       savedToolIdentifier = ""
       useCustomWorkingDirectory = "NO"
diff --git a/packages/extension_google_sign_in_as_googleapis_auth/example/ios/Runner.xcworkspace/contents.xcworkspacedata b/packages/extension_google_sign_in_as_googleapis_auth/example/ios/Runner.xcworkspace/contents.xcworkspacedata
old mode 100755
new mode 100644
index 21a3cc14c74e..1d526a16ed0f
--- a/packages/extension_google_sign_in_as_googleapis_auth/example/ios/Runner.xcworkspace/contents.xcworkspacedata
+++ b/packages/extension_google_sign_in_as_googleapis_auth/example/ios/Runner.xcworkspace/contents.xcworkspacedata
@@ -4,7 +4,4 @@
    <FileRef
       location = "group:Runner.xcodeproj">
    </FileRef>
-   <FileRef
-      location = "group:Pods/Pods.xcodeproj">
-   </FileRef>
 </Workspace>
diff --git a/packages/extension_google_sign_in_as_googleapis_auth/example/ios/Runner.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist b/packages/extension_google_sign_in_as_googleapis_auth/example/ios/Runner.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist
new file mode 100644
index 000000000000..18d981003d68
--- /dev/null
+++ b/packages/extension_google_sign_in_as_googleapis_auth/example/ios/Runner.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>IDEDidComputeMac32BitWarning</key>
+	<true/>
+</dict>
+</plist>
diff --git a/packages/extension_google_sign_in_as_googleapis_auth/example/ios/Runner.xcworkspace/xcshareddata/WorkspaceSettings.xcsettings b/packages/extension_google_sign_in_as_googleapis_auth/example/ios/Runner.xcworkspace/xcshareddata/WorkspaceSettings.xcsettings
new file mode 100644
index 000000000000..f9b0d7c5ea15
--- /dev/null
+++ b/packages/extension_google_sign_in_as_googleapis_auth/example/ios/Runner.xcworkspace/xcshareddata/WorkspaceSettings.xcsettings
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>PreviewsEnabled</key>
+	<false/>
+</dict>
+</plist>
diff --git a/packages/extension_google_sign_in_as_googleapis_auth/example/ios/Runner/AppDelegate.m b/packages/extension_google_sign_in_as_googleapis_auth/example/ios/Runner/AppDelegate.m
index 30b87969f44a..442514aaecbe 100644
--- a/packages/extension_google_sign_in_as_googleapis_auth/example/ios/Runner/AppDelegate.m
+++ b/packages/extension_google_sign_in_as_googleapis_auth/example/ios/Runner/AppDelegate.m
@@ -2,8 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#include "AppDelegate.h"
-#include "GeneratedPluginRegistrant.h"
+#import "AppDelegate.h"
+#import "GeneratedPluginRegistrant.h"
 
 @implementation AppDelegate
 
diff --git a/packages/extension_google_sign_in_as_googleapis_auth/example/ios/Runner/Assets.xcassets/AppIcon.appiconset/Contents.json b/packages/extension_google_sign_in_as_googleapis_auth/example/ios/Runner/Assets.xcassets/AppIcon.appiconset/Contents.json
old mode 100755
new mode 100644
index d22f10b2ab63..d36b1fab2d9d
--- a/packages/extension_google_sign_in_as_googleapis_auth/example/ios/Runner/Assets.xcassets/AppIcon.appiconset/Contents.json
+++ b/packages/extension_google_sign_in_as_googleapis_auth/example/ios/Runner/Assets.xcassets/AppIcon.appiconset/Contents.json
@@ -107,6 +107,12 @@
       "idiom" : "ipad",
       "filename" : "Icon-App-83.5x83.5@2x.png",
       "scale" : "2x"
+    },
+    {
+      "size" : "1024x1024",
+      "idiom" : "ios-marketing",
+      "filename" : "Icon-App-1024x1024@1x.png",
+      "scale" : "1x"
     }
   ],
   "info" : {
diff --git a/packages/extension_google_sign_in_as_googleapis_auth/example/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-1024x1024@1x.png b/packages/extension_google_sign_in_as_googleapis_auth/example/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-1024x1024@1x.png
new file mode 100644
index 000000000000..dc9ada4725e9
Binary files /dev/null and b/packages/extension_google_sign_in_as_googleapis_auth/example/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-1024x1024@1x.png differ
diff --git a/packages/extension_google_sign_in_as_googleapis_auth/example/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-20x20@1x.png b/packages/extension_google_sign_in_as_googleapis_auth/example/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-20x20@1x.png
old mode 100755
new mode 100644
diff --git a/packages/extension_google_sign_in_as_googleapis_auth/example/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-20x20@2x.png b/packages/extension_google_sign_in_as_googleapis_auth/example/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-20x20@2x.png
old mode 100755
new mode 100644
diff --git a/packages/extension_google_sign_in_as_googleapis_auth/example/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-20x20@3x.png b/packages/extension_google_sign_in_as_googleapis_auth/example/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-20x20@3x.png
old mode 100755
new mode 100644
diff --git a/packages/extension_google_sign_in_as_googleapis_auth/example/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-29x29@1x.png b/packages/extension_google_sign_in_as_googleapis_auth/example/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-29x29@1x.png
old mode 100755
new mode 100644
diff --git a/packages/extension_google_sign_in_as_googleapis_auth/example/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-29x29@2x.png b/packages/extension_google_sign_in_as_googleapis_auth/example/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-29x29@2x.png
old mode 100755
new mode 100644
diff --git a/packages/extension_google_sign_in_as_googleapis_auth/example/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-29x29@3x.png b/packages/extension_google_sign_in_as_googleapis_auth/example/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-29x29@3x.png
old mode 100755
new mode 100644
diff --git a/packages/extension_google_sign_in_as_googleapis_auth/example/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-40x40@1x.png b/packages/extension_google_sign_in_as_googleapis_auth/example/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-40x40@1x.png
old mode 100755
new mode 100644
diff --git a/packages/extension_google_sign_in_as_googleapis_auth/example/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-40x40@2x.png b/packages/extension_google_sign_in_as_googleapis_auth/example/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-40x40@2x.png
old mode 100755
new mode 100644
diff --git a/packages/extension_google_sign_in_as_googleapis_auth/example/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-40x40@3x.png b/packages/extension_google_sign_in_as_googleapis_auth/example/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-40x40@3x.png
old mode 100755
new mode 100644
diff --git a/packages/extension_google_sign_in_as_googleapis_auth/example/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-60x60@2x.png b/packages/extension_google_sign_in_as_googleapis_auth/example/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-60x60@2x.png
old mode 100755
new mode 100644
diff --git a/packages/extension_google_sign_in_as_googleapis_auth/example/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-60x60@3x.png b/packages/extension_google_sign_in_as_googleapis_auth/example/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-60x60@3x.png
old mode 100755
new mode 100644
diff --git a/packages/extension_google_sign_in_as_googleapis_auth/example/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-76x76@1x.png b/packages/extension_google_sign_in_as_googleapis_auth/example/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-76x76@1x.png
old mode 100755
new mode 100644
diff --git a/packages/extension_google_sign_in_as_googleapis_auth/example/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-76x76@2x.png b/packages/extension_google_sign_in_as_googleapis_auth/example/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-76x76@2x.png
old mode 100755
new mode 100644
diff --git a/packages/extension_google_sign_in_as_googleapis_auth/example/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-83.5x83.5@2x.png b/packages/extension_google_sign_in_as_googleapis_auth/example/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-83.5x83.5@2x.png
old mode 100755
new mode 100644
diff --git a/packages/extension_google_sign_in_as_googleapis_auth/example/ios/Runner/Assets.xcassets/LaunchImage.imageset/Contents.json b/packages/extension_google_sign_in_as_googleapis_auth/example/ios/Runner/Assets.xcassets/LaunchImage.imageset/Contents.json
new file mode 100644
index 000000000000..0bedcf2fd467
--- /dev/null
+++ b/packages/extension_google_sign_in_as_googleapis_auth/example/ios/Runner/Assets.xcassets/LaunchImage.imageset/Contents.json
@@ -0,0 +1,23 @@
+{
+  "images" : [
+    {
+      "idiom" : "universal",
+      "filename" : "LaunchImage.png",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "universal",
+      "filename" : "LaunchImage@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "universal",
+      "filename" : "LaunchImage@3x.png",
+      "scale" : "3x"
+    }
+  ],
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}
diff --git a/packages/extension_google_sign_in_as_googleapis_auth/example/ios/Runner/Assets.xcassets/LaunchImage.imageset/LaunchImage.png b/packages/extension_google_sign_in_as_googleapis_auth/example/ios/Runner/Assets.xcassets/LaunchImage.imageset/LaunchImage.png
new file mode 100644
index 000000000000..9da19eacad3b
Binary files /dev/null and b/packages/extension_google_sign_in_as_googleapis_auth/example/ios/Runner/Assets.xcassets/LaunchImage.imageset/LaunchImage.png differ
diff --git a/packages/extension_google_sign_in_as_googleapis_auth/example/ios/Runner/Assets.xcassets/LaunchImage.imageset/LaunchImage@2x.png b/packages/extension_google_sign_in_as_googleapis_auth/example/ios/Runner/Assets.xcassets/LaunchImage.imageset/LaunchImage@2x.png
new file mode 100644
index 000000000000..9da19eacad3b
Binary files /dev/null and b/packages/extension_google_sign_in_as_googleapis_auth/example/ios/Runner/Assets.xcassets/LaunchImage.imageset/LaunchImage@2x.png differ
diff --git a/packages/extension_google_sign_in_as_googleapis_auth/example/ios/Runner/Assets.xcassets/LaunchImage.imageset/LaunchImage@3x.png b/packages/extension_google_sign_in_as_googleapis_auth/example/ios/Runner/Assets.xcassets/LaunchImage.imageset/LaunchImage@3x.png
new file mode 100644
index 000000000000..9da19eacad3b
Binary files /dev/null and b/packages/extension_google_sign_in_as_googleapis_auth/example/ios/Runner/Assets.xcassets/LaunchImage.imageset/LaunchImage@3x.png differ
diff --git a/packages/extension_google_sign_in_as_googleapis_auth/example/ios/Runner/Assets.xcassets/LaunchImage.imageset/README.md b/packages/extension_google_sign_in_as_googleapis_auth/example/ios/Runner/Assets.xcassets/LaunchImage.imageset/README.md
new file mode 100644
index 000000000000..89c2725b70f1
--- /dev/null
+++ b/packages/extension_google_sign_in_as_googleapis_auth/example/ios/Runner/Assets.xcassets/LaunchImage.imageset/README.md
@@ -0,0 +1,5 @@
+# Launch Screen Assets
+
+You can customize the launch screen with your own desired assets by replacing the image files in this directory.
+
+You can also do it by opening your Flutter project's Xcode project with `open ios/Runner.xcworkspace`, selecting `Runner/Assets.xcassets` in the Project Navigator and dropping in the desired images.
\ No newline at end of file
diff --git a/packages/extension_google_sign_in_as_googleapis_auth/example/ios/Runner/Base.lproj/LaunchScreen.storyboard b/packages/extension_google_sign_in_as_googleapis_auth/example/ios/Runner/Base.lproj/LaunchScreen.storyboard
old mode 100755
new mode 100644
index ebf48f603974..f2e259c7c939
--- a/packages/extension_google_sign_in_as_googleapis_auth/example/ios/Runner/Base.lproj/LaunchScreen.storyboard
+++ b/packages/extension_google_sign_in_as_googleapis_auth/example/ios/Runner/Base.lproj/LaunchScreen.storyboard
@@ -1,8 +1,8 @@
 <?xml version="1.0" encoding="UTF-8" standalone="no"?>
-<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="10117" systemVersion="15F34" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" launchScreen="YES" useTraitCollections="YES" initialViewController="01J-lp-oVM">
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="12121" systemVersion="16G29" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" launchScreen="YES" colorMatched="YES" initialViewController="01J-lp-oVM">
     <dependencies>
         <deployment identifier="iOS"/>
-        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="10085"/>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="12089"/>
     </dependencies>
     <scenes>
         <!--View Controller-->
@@ -10,13 +10,20 @@
             <objects>
                 <viewController id="01J-lp-oVM" sceneMemberID="viewController">
                     <layoutGuides>
-                        <viewControllerLayoutGuide type="top" id="Llm-lL-Icb"/>
-                        <viewControllerLayoutGuide type="bottom" id="xb3-aO-Qok"/>
+                        <viewControllerLayoutGuide type="top" id="Ydg-fD-yQy"/>
+                        <viewControllerLayoutGuide type="bottom" id="xbc-2k-c8Z"/>
                     </layoutGuides>
                     <view key="view" contentMode="scaleToFill" id="Ze5-6b-2t3">
-                        <rect key="frame" x="0.0" y="0.0" width="600" height="600"/>
                         <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
-                        <color key="backgroundColor" white="1" alpha="1" colorSpace="custom" customColorSpace="calibratedWhite"/>
+                        <subviews>
+                            <imageView opaque="NO" clipsSubviews="YES" multipleTouchEnabled="YES" contentMode="center" image="LaunchImage" translatesAutoresizingMaskIntoConstraints="NO" id="YRO-k0-Ey4">
+                            </imageView>
+                        </subviews>
+                        <color key="backgroundColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
+                        <constraints>
+                            <constraint firstItem="YRO-k0-Ey4" firstAttribute="centerX" secondItem="Ze5-6b-2t3" secondAttribute="centerX" id="1a2-6s-vTC"/>
+                            <constraint firstItem="YRO-k0-Ey4" firstAttribute="centerY" secondItem="Ze5-6b-2t3" secondAttribute="centerY" id="4X2-HB-R7a"/>
+                        </constraints>
                     </view>
                 </viewController>
                 <placeholder placeholderIdentifier="IBFirstResponder" id="iYj-Kq-Ea1" userLabel="First Responder" sceneMemberID="firstResponder"/>
@@ -24,4 +31,7 @@
             <point key="canvasLocation" x="53" y="375"/>
         </scene>
     </scenes>
+    <resources>
+        <image name="LaunchImage" width="168" height="185"/>
+    </resources>
 </document>
diff --git a/packages/extension_google_sign_in_as_googleapis_auth/example/ios/Runner/Base.lproj/Main.storyboard b/packages/extension_google_sign_in_as_googleapis_auth/example/ios/Runner/Base.lproj/Main.storyboard
old mode 100755
new mode 100644
diff --git a/packages/extension_google_sign_in_as_googleapis_auth/example/ios/Runner/GoogleService-Info.plist b/packages/extension_google_sign_in_as_googleapis_auth/example/ios/Runner/GoogleService-Info.plist
index 6042aab908af..51dd9ae5b613 100644
--- a/packages/extension_google_sign_in_as_googleapis_auth/example/ios/Runner/GoogleService-Info.plist
+++ b/packages/extension_google_sign_in_as_googleapis_auth/example/ios/Runner/GoogleService-Info.plist
@@ -41,4 +41,4 @@
 	<key>SERVER_CLIENT_ID</key>
 	<string>YOUR_SERVER_CLIENT_ID</string>
 </dict>
-</plist>
\ No newline at end of file
+</plist>
diff --git a/packages/extension_google_sign_in_as_googleapis_auth/example/ios/Runner/Info.plist b/packages/extension_google_sign_in_as_googleapis_auth/example/ios/Runner/Info.plist
old mode 100755
new mode 100644
index e03ccfe55e37..39351b131d8c
--- a/packages/extension_google_sign_in_as_googleapis_auth/example/ios/Runner/Info.plist
+++ b/packages/extension_google_sign_in_as_googleapis_auth/example/ios/Runner/Info.plist
@@ -3,9 +3,7 @@
 <plist version="1.0">
 <dict>
 	<key>CFBundleDevelopmentRegion</key>
-	<string>en</string>
-	<key>CFBundleDisplayName</key>
-	<string>Google Sign-In Example</string>
+	<string>$(DEVELOPMENT_LANGUAGE)</string>
 	<key>CFBundleExecutable</key>
 	<string>$(EXECUTABLE_NAME)</string>
 	<key>CFBundleIdentifier</key>
@@ -13,36 +11,21 @@
 	<key>CFBundleInfoDictionaryVersion</key>
 	<string>6.0</string>
 	<key>CFBundleName</key>
-	<string>GoogleSignInExample</string>
+	<string>googlesigninexample</string>
 	<key>CFBundlePackageType</key>
 	<string>APPL</string>
 	<key>CFBundleShortVersionString</key>
-	<string>1.0</string>
+	<string>$(FLUTTER_BUILD_NAME)</string>
 	<key>CFBundleSignature</key>
 	<string>????</string>
-	<key>CFBundleURLTypes</key>
-	<array>
-		<dict>
-			<key>CFBundleTypeRole</key>
-			<string>Editor</string>
-			<key>CFBundleURLSchemes</key>
-			<array>
-				<string>com.googleusercontent.apps.479882132969-9i9aqik3jfjd7qhci1nqf0bm2g71rm1u</string>
-			</array>
-		</dict>
-	</array>
 	<key>CFBundleVersion</key>
-	<string>1</string>
+	<string>$(FLUTTER_BUILD_NUMBER)</string>
 	<key>LSRequiresIPhoneOS</key>
 	<true/>
 	<key>UILaunchStoryboardName</key>
 	<string>LaunchScreen</string>
 	<key>UIMainStoryboardFile</key>
 	<string>Main</string>
-	<key>UIRequiredDeviceCapabilities</key>
-	<array>
-		<string>arm64</string>
-	</array>
 	<key>UISupportedInterfaceOrientations</key>
 	<array>
 		<string>UIInterfaceOrientationPortrait</string>
diff --git a/packages/extension_google_sign_in_as_googleapis_auth/example/lib/main.dart b/packages/extension_google_sign_in_as_googleapis_auth/example/lib/main.dart
old mode 100755
new mode 100644
index 996be9ca8324..904bbb7f3664
--- a/packages/extension_google_sign_in_as_googleapis_auth/example/lib/main.dart
+++ b/packages/extension_google_sign_in_as_googleapis_auth/example/lib/main.dart
@@ -8,8 +8,11 @@ import 'package:extension_google_sign_in_as_googleapis_auth/extension_google_sig
 import 'package:flutter/material.dart';
 import 'package:google_sign_in/google_sign_in.dart';
 import 'package:googleapis/people/v1.dart';
+import 'package:googleapis_auth/googleapis_auth.dart' as auth show AuthClient;
 
 final GoogleSignIn _googleSignIn = GoogleSignIn(
+  // Optional clientId
+  // clientId: '[YOUR_OAUTH_2_CLIENT_ID]',
   scopes: <String>[PeopleServiceApi.contactsReadonlyScope],
 );
 
@@ -34,7 +37,7 @@ class SignInDemo extends StatefulWidget {
 /// The state of the main widget.
 class SignInDemoState extends State<SignInDemo> {
   GoogleSignInAccount? _currentUser;
-  String? _contactText;
+  String _contactText = '';
 
   @override
   void initState() {
@@ -55,8 +58,14 @@ class SignInDemoState extends State<SignInDemo> {
       _contactText = 'Loading contact info...';
     });
 
-    final PeopleServiceApi peopleApi =
-        PeopleServiceApi((await _googleSignIn.authenticatedClient())!);
+    // Retrieve an [auth.AuthClient] from the current [GoogleSignIn] instance.
+    final auth.AuthClient? client = await _googleSignIn.authenticatedClient();
+
+    assert(client != null, 'Authenticated client missing!');
+
+    // Prepare a People Service authenticated client.
+    final PeopleServiceApi peopleApi = PeopleServiceApi(client!);
+    // Retrieve a list of the `names` of my `connections`
     final ListConnectionsResponse response =
         await peopleApi.people.connections.list(
       'people/me',
@@ -98,19 +107,20 @@ class SignInDemoState extends State<SignInDemo> {
   Future<void> _handleSignOut() => _googleSignIn.disconnect();
 
   Widget _buildBody() {
-    if (_currentUser != null) {
+    final GoogleSignInAccount? user = _currentUser;
+    if (user != null) {
       return Column(
         mainAxisAlignment: MainAxisAlignment.spaceAround,
         children: <Widget>[
           ListTile(
             leading: GoogleUserCircleAvatar(
-              identity: _currentUser!,
+              identity: user,
             ),
-            title: Text(_currentUser!.displayName ?? ''),
-            subtitle: Text(_currentUser!.email),
+            title: Text(user.displayName ?? ''),
+            subtitle: Text(user.email),
           ),
           const Text('Signed in successfully.'),
-          Text(_contactText ?? ''),
+          Text(_contactText),
           ElevatedButton(
             child: const Text('SIGN OUT'),
             onPressed: _handleSignOut,
diff --git a/packages/extension_google_sign_in_as_googleapis_auth/example/pubspec.yaml b/packages/extension_google_sign_in_as_googleapis_auth/example/pubspec.yaml
index a0b2e02940bb..284d56abcbba 100644
--- a/packages/extension_google_sign_in_as_googleapis_auth/example/pubspec.yaml
+++ b/packages/extension_google_sign_in_as_googleapis_auth/example/pubspec.yaml
@@ -16,11 +16,14 @@ dependencies:
     path: ../
   flutter:
     sdk: flutter
-  google_sign_in: ^5.0.0
-  googleapis: ^2.0.0
+  google_sign_in: ^5.1.0
+  googleapis: ^5.0.1
+  googleapis_auth: ^1.1.0
 
 dev_dependencies:
-  pedantic: ^1.10.0
+  flutter_lints: ^1.0.0
+  flutter_test:
+    sdk: flutter
 
 flutter:
   uses-material-design: true
diff --git a/packages/extension_google_sign_in_as_googleapis_auth/example/web/favicon.png b/packages/extension_google_sign_in_as_googleapis_auth/example/web/favicon.png
new file mode 100644
index 000000000000..8aaa46ac1ae2
Binary files /dev/null and b/packages/extension_google_sign_in_as_googleapis_auth/example/web/favicon.png differ
diff --git a/packages/extension_google_sign_in_as_googleapis_auth/example/web/icons/Icon-192.png b/packages/extension_google_sign_in_as_googleapis_auth/example/web/icons/Icon-192.png
new file mode 100644
index 000000000000..b749bfef0747
Binary files /dev/null and b/packages/extension_google_sign_in_as_googleapis_auth/example/web/icons/Icon-192.png differ
diff --git a/packages/extension_google_sign_in_as_googleapis_auth/example/web/icons/Icon-512.png b/packages/extension_google_sign_in_as_googleapis_auth/example/web/icons/Icon-512.png
new file mode 100644
index 000000000000..88cfd48dff11
Binary files /dev/null and b/packages/extension_google_sign_in_as_googleapis_auth/example/web/icons/Icon-512.png differ
diff --git a/packages/extension_google_sign_in_as_googleapis_auth/example/web/icons/Icon-maskable-192.png b/packages/extension_google_sign_in_as_googleapis_auth/example/web/icons/Icon-maskable-192.png
new file mode 100644
index 000000000000..eb9b4d76e525
Binary files /dev/null and b/packages/extension_google_sign_in_as_googleapis_auth/example/web/icons/Icon-maskable-192.png differ
diff --git a/packages/extension_google_sign_in_as_googleapis_auth/example/web/icons/Icon-maskable-512.png b/packages/extension_google_sign_in_as_googleapis_auth/example/web/icons/Icon-maskable-512.png
new file mode 100644
index 000000000000..d69c56691fbd
Binary files /dev/null and b/packages/extension_google_sign_in_as_googleapis_auth/example/web/icons/Icon-maskable-512.png differ
diff --git a/packages/extension_google_sign_in_as_googleapis_auth/example/web/index.html b/packages/extension_google_sign_in_as_googleapis_auth/example/web/index.html
index 888f48a1e7aa..2a2d77f1ac1a 100644
--- a/packages/extension_google_sign_in_as_googleapis_auth/example/web/index.html
+++ b/packages/extension_google_sign_in_as_googleapis_auth/example/web/index.html
@@ -2,13 +2,110 @@
 <!-- Copyright 2013 The Flutter Authors. All rights reserved.
 Use of this source code is governed by a BSD-style license that can be
 found in the LICENSE file. -->
+
 <html>
 <head>
+  <!--
+    If you are serving your web app in a path other than the root, change the
+    href value below to reflect the base path you are serving from.
+
+    The path provided below has to start and end with a slash "/" in order for
+    it to work correctly.
+
+    For more details:
+    * https://developer.mozilla.org/en-US/docs/Web/HTML/Element/base
+
+    This is a placeholder for base href that will be replaced by the value of
+    the `--base-href` argument provided to `flutter build`.
+  -->
+  <base href="$FLUTTER_BASE_HREF">
+
   <meta charset="UTF-8">
+  <meta content="IE=Edge" http-equiv="X-UA-Compatible">
+  <meta name="description" content="A new Flutter project.">
+
+  <!-- iOS meta tags & icons -->
+  <meta name="apple-mobile-web-app-capable" content="yes">
+  <meta name="apple-mobile-web-app-status-bar-style" content="black">
+  <meta name="apple-mobile-web-app-title" content="example">
+  <link rel="apple-touch-icon" href="icons/Icon-192.png">
+
+  <!-- Favicon -->
+  <link rel="icon" type="image/png" href="favicon.png"/>
+
+  <link rel="manifest" href="manifest.json">
+
+  <!-- Google Sign In configuration -->
   <meta name="google-signin-client_id" content="[YOUR_OAUTH_2_CLIENT_ID_FOR_WEB]" />
   <title>Google Sign-in Example</title>
 </head>
 <body>
-  <script src="main.dart.js" type="application/javascript"></script>
+  <!-- This script installs service_worker.js to provide PWA functionality to
+       application. For more information, see:
+       https://developers.google.com/web/fundamentals/primers/service-workers -->
+  <script>
+    var serviceWorkerVersion = null;
+    var scriptLoaded = false;
+    function loadMainDartJs() {
+      if (scriptLoaded) {
+        return;
+      }
+      scriptLoaded = true;
+      var scriptTag = document.createElement('script');
+      scriptTag.src = 'main.dart.js';
+      scriptTag.type = 'application/javascript';
+      document.body.append(scriptTag);
+    }
+
+    if ('serviceWorker' in navigator) {
+      // Service workers are supported. Use them.
+      window.addEventListener('load', function () {
+        // Wait for registration to finish before dropping the <script> tag.
+        // Otherwise, the browser will load the script multiple times,
+        // potentially different versions.
+        var serviceWorkerUrl = 'flutter_service_worker.js?v=' + serviceWorkerVersion;
+        navigator.serviceWorker.register(serviceWorkerUrl)
+          .then((reg) => {
+            function waitForActivation(serviceWorker) {
+              serviceWorker.addEventListener('statechange', () => {
+                if (serviceWorker.state == 'activated') {
+                  console.log('Installed new service worker.');
+                  loadMainDartJs();
+                }
+              });
+            }
+            if (!reg.active && (reg.installing || reg.waiting)) {
+              // No active web worker and we have installed or are installing
+              // one for the first time. Simply wait for it to activate.
+              waitForActivation(reg.installing || reg.waiting);
+            } else if (!reg.active.scriptURL.endsWith(serviceWorkerVersion)) {
+              // When the app updates the serviceWorkerVersion changes, so we
+              // need to ask the service worker to update.
+              console.log('New service worker available.');
+              reg.update();
+              waitForActivation(reg.installing);
+            } else {
+              // Existing service worker is still good.
+              console.log('Loading app from service worker.');
+              loadMainDartJs();
+            }
+          });
+
+        // If service worker doesn't succeed in a reasonable amount of time,
+        // fallback to plaint <script> tag.
+        setTimeout(() => {
+          if (!scriptLoaded) {
+            console.warn(
+              'Failed to load app from service worker. Falling back to plain <script> tag.',
+            );
+            loadMainDartJs();
+          }
+        }, 4000);
+      });
+    } else {
+      // Service workers not supported. Just drop the <script> tag.
+      loadMainDartJs();
+    }
+  </script>
 </body>
 </html>
diff --git a/packages/extension_google_sign_in_as_googleapis_auth/example/web/manifest.json b/packages/extension_google_sign_in_as_googleapis_auth/example/web/manifest.json
new file mode 100644
index 000000000000..096edf8fe4cd
--- /dev/null
+++ b/packages/extension_google_sign_in_as_googleapis_auth/example/web/manifest.json
@@ -0,0 +1,35 @@
+{
+    "name": "example",
+    "short_name": "example",
+    "start_url": ".",
+    "display": "standalone",
+    "background_color": "#0175C2",
+    "theme_color": "#0175C2",
+    "description": "A new Flutter project.",
+    "orientation": "portrait-primary",
+    "prefer_related_applications": false,
+    "icons": [
+        {
+            "src": "icons/Icon-192.png",
+            "sizes": "192x192",
+            "type": "image/png"
+        },
+        {
+            "src": "icons/Icon-512.png",
+            "sizes": "512x512",
+            "type": "image/png"
+        },
+        {
+            "src": "icons/Icon-maskable-192.png",
+            "sizes": "192x192",
+            "type": "image/png",
+            "purpose": "maskable"
+        },
+        {
+            "src": "icons/Icon-maskable-512.png",
+            "sizes": "512x512",
+            "type": "image/png",
+            "purpose": "maskable"
+        }
+    ]
+}
diff --git a/packages/extension_google_sign_in_as_googleapis_auth/pubspec.yaml b/packages/extension_google_sign_in_as_googleapis_auth/pubspec.yaml
index 11f34b471228..2d1f602634b9 100644
--- a/packages/extension_google_sign_in_as_googleapis_auth/pubspec.yaml
+++ b/packages/extension_google_sign_in_as_googleapis_auth/pubspec.yaml
@@ -8,7 +8,7 @@ name: extension_google_sign_in_as_googleapis_auth
 description: A bridge package between google_sign_in and googleapis_auth, to create Authenticated Clients from google_sign_in user credentials.
 repository: https://github.com/flutter/packages/tree/master/packages/extension_google_sign_in_as_googleapis_auth
 issue_tracker: https://github.com/flutter/flutter/issues?q=is%3Aissue+is%3Aopen+label%3A%22p%3A+extension_google_sign_in_as_googleapis_auth%22
-version: 2.0.3
+version: 2.0.4
 
 environment:
   sdk: ">=2.12.0 <3.0.0"
@@ -26,3 +26,7 @@ dev_dependencies:
   flutter_test:
     sdk: flutter
   pedantic: ^1.10.0
+
+false_secrets:
+ - example/android/app/google-services.json
+ - example/ios/Runner/GoogleService-Info.plist