Add flutter_view sample (#8486)

* Add flutter_view sample

* Removed platform_services files

* Addressed comments

* update README.md

* Addressed comments.

examples/flutter_view/.gitignore

+.DS_Store
+.atom/
+.idea
+.packages
+.pub/
+build/
+ios/.generated/
+packages
+pubspec.lock

examples/flutter_view/.idea/flutter_view.iml

+<?xml version="1.0" encoding="UTF-8"?>
+<module type="FLUTTER_MODULE_TYPE" version="4">
+  <component name="NewModuleRootManager" inherit-compiler-output="true">
+    <exclude-output />
+    <content url="file://$MODULE_DIR$">
+      <excludeFolder url="file://$MODULE_DIR$/.idea" />
+      <excludeFolder url="file://$MODULE_DIR$/.pub" />
+      <excludeFolder url="file://$MODULE_DIR$/build" />
+      <excludeFolder url="file://$MODULE_DIR$/packages" />
+    </content>
+    <orderEntry type="sourceFolder" forTests="false" />
+    <orderEntry type="library" name="Dart SDK" level="application" />
+    <orderEntry type="library" name="Dart Packages" level="project" />
+  </component>
+</module>
\ No newline at end of file

examples/flutter_view/.idea/modules.xml

+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ProjectModuleManager">
+    <modules>
+      <module fileurl="file://$PROJECT_DIR$/.idea/flutter_view.iml" filepath="$PROJECT_DIR$/.idea/flutter_view.iml" />
+    </modules>
+  </component>
+</project>
\ No newline at end of file

examples/flutter_view/.idea/runConfigurations/main_dart.xml

+<component name="ProjectRunConfigurationManager">
+  <configuration default="false" name="main.dart" type="FlutterRunConfigurationType" factoryName="Flutter">
+    <option name="filePath" value="$PROJECT_DIR$/lib/main.dart" />
+    <method />
+  </configuration>
+</component>
\ No newline at end of file

examples/flutter_view/README.md

+# Example of embedding Flutter using FlutterView
+
+This project demonstrates how to embed Flutter within an iOS or Android
+application. On iOS, the iOS and Flutter components are built with Xcode. On
+Android, the Android and Flutter components are built with Android Studio or
+gradle.
+
+You can read more about
+[accessing platform and third-party services in Flutter](https://flutter.io/platform-services/).
+
+## iOS
+
+You can open `ios/Runner.xcworkspace` in Xcode and build the project as
+usual. For this sample you need to run `pod install` from the `ios` folder
+before building the first time.
+
+## Android
+
+You can open `android/` in Android Studio and build the project as usual.

examples/flutter_view/android/.gitignore

+*.iml
+.gradle
+/local.properties
+/.idea/workspace.xml
+/.idea/libraries
+.DS_Store
+/build
+/captures
+
+/gradle
+/gradlew
+/gradlew.bat

examples/flutter_view/android/app/build.gradle

+def localProperties = new Properties()
+def localPropertiesFile = rootProject.file('local.properties')
+if (localPropertiesFile.exists()) {
+    localPropertiesFile.withInputStream { stream ->
+        localProperties.load(stream)
+    }
+}
+
+def flutterRoot = localProperties.getProperty('flutter.sdk')
+if (flutterRoot == null) {
+    throw new GradleException("Flutter SDK not found. Define location with flutter.sdk in the local.properties file.")
+}
+
+apply plugin: 'com.android.application'
+apply from: "$flutterRoot/packages/flutter_tools/gradle/flutter.gradle"
+
+android {
+    compileSdkVersion 25
+    buildToolsVersion '25.0.2'
+
+    lintOptions {
+        disable 'InvalidPackage'
+    }
+
+    defaultConfig {
+        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
+    }
+
+    buildTypes {
+        release {
+            // TODO: Add your own signing config for the release build.
+            // Signing with the debug keys for now, so `flutter run --release` works.
+            signingConfig signingConfigs.debug
+        }
+    }
+}
+
+flutter {
+    source '../..'
+}
+
+dependencies {
+    androidTestCompile 'com.android.support:support-annotations:25.0.0'
+    androidTestCompile 'com.android.support.test:runner:0.5'
+    androidTestCompile 'com.android.support.test:rules:0.5'
+    compile 'com.android.support:appcompat-v7:25.0.0'
+    compile 'com.android.support:design:25.0.0'
+}

examples/flutter_view/android/app/src/main/AndroidManifest.xml

+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="com.example.view"
+    android:versionCode="1"
+    android:versionName="0.0.1">
+
+    <uses-sdk android:minSdkVersion="16" android:targetSdkVersion="21" />
+
+    <!-- The INTERNET permission is required for development. Specifically, 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"/>
+
+    <!-- io.flutter.app.FlutterApplication is an android.app.Application that
+         calls FlutterMain.startInitialization(this); in its onCreate method.
+         In most cases you can leave this as-is, but you if you want to provide
+         additional functionality it is fine to subclass or reimplement
+         FlutterApplication and put your custom class here. -->
+    <application android:name="io.flutter.app.FlutterApplication" android:label="flutter_view" android:icon="@mipmap/ic_launcher">
+        <activity android:name=".MainActivity"
+                  android:launchMode="singleTop"
+                  android:theme="@style/Theme.AppCompat"
+                  android:configChanges="orientation|keyboardHidden|keyboard|screenSize|locale|layoutDirection"
+                  android:hardwareAccelerated="true"
+                  android:windowSoftInputMode="adjustResize">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN"/>
+                <category android:name="android.intent.category.LAUNCHER"/>
+            </intent-filter>
+        </activity>
+    </application>
+</manifest>

examples/flutter_view/android/app/src/main/java/com/example/view/MainActivity.java

+package com.example.view;
+
+import android.content.Intent;
+import android.os.Bundle;
+import android.support.design.widget.FloatingActionButton;
+import android.support.v7.app.AppCompatActivity;
+import android.view.View;
+import android.widget.TextView;
+import io.flutter.view.FlutterMain;
+import io.flutter.view.FlutterView;
+import java.util.ArrayList;
+
+public class MainActivity extends AppCompatActivity {
+    private FlutterView flutterView;
+    private int counter;
+    private static final String CHANNEL = "increment";
+    private static final String EMPTY_MESSAGE = "";
+
+    private String[] getArgsFromIntent(Intent intent) {
+        // Before adding more entries to this list, consider that arbitrary
+        // Android applications can generate intents with extra data and that
+        // there are many security-sensitive args in the binary.
+        ArrayList<String> args = new ArrayList<String>();
+        if (intent.getBooleanExtra("trace-startup", false)) {
+            args.add("--trace-startup");
+        }
+        if (intent.getBooleanExtra("start-paused", false)) {
+            args.add("--start-paused");
+        }
+        if (intent.getBooleanExtra("enable-dart-profiling", false)) {
+            args.add("--enable-dart-profiling");
+        }
+        if (!args.isEmpty()) {
+            String[] argsArray = new String[args.size()];
+            return args.toArray(argsArray);
+        }
+        return null;
+    }
+
+
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+
+        String[] args = getArgsFromIntent(getIntent());
+        FlutterMain.ensureInitializationComplete(getApplicationContext(), args);
+        setContentView(R.layout.flutter_view_layout);
+        getSupportActionBar().hide();
+
+        flutterView = (FlutterView) findViewById(R.id.flutter_view);
+        flutterView.runFromBundle(FlutterMain.findAppBundlePath(getApplicationContext()), null);
+
+        flutterView.addOnMessageListener(CHANNEL,
+            new FlutterView.OnMessageListener() {
+                @Override
+                public String onMessage(FlutterView view, String message) {
+                    return onFlutterIncrement();
+                }
+            });
+
+        FloatingActionButton fab = (FloatingActionButton) findViewById(R.id.button);
+        fab.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                sendAndroidIncrement();
+            }
+        });
+    }
+
+    private void sendAndroidIncrement() {
+        flutterView.sendToFlutter(CHANNEL, EMPTY_MESSAGE, null);
+    }
+
+    private String onFlutterIncrement() {
+        counter++;
+        TextView textView = (TextView) findViewById(R.id.button_tap);
+        String value = "Flutter button tapped " + counter + (counter == 1 ? " time" : " times");
+        textView.setText(value);
+        return EMPTY_MESSAGE;
+    }
+
+    @Override
+    protected void onDestroy() {
+        if (flutterView != null) {
+            flutterView.destroy();
+        }
+        super.onDestroy();
+    }
+
+    @Override
+    protected void onPause() {
+        super.onPause();
+        flutterView.onPause();
+    }
+
+    @Override
+    protected void onPostResume() {
+        super.onPostResume();
+        flutterView.onPostResume();
+    }
+}
\ No newline at end of file

examples/flutter_view/android/app/src/main/res/color/fab_ripple_color.xml

+<?xml version="1.0" encoding="utf-8"?>
+<selector xmlns:android="http://schemas.android.com/apk/res/android">
+  <item android:state_pressed="true" android:color="@color/grey" />
+  <item android:state_focused="true" android:color="@color/grey" />
+  <item android:color="@color/white"/>
+</selector>
\ No newline at end of file

examples/flutter_view/android/app/src/main/res/drawable/ic_add_black_24dp.xml

+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+        android:width="24dp"
+        android:height="24dp"
+        android:viewportWidth="24.0"
+        android:viewportHeight="24.0">
+    <path
+        android:fillColor="#FF000000"
+        android:pathData="M19,13h-6v6h-2v-6H5v-2h6V5h2v6h6v2z"/>
+</vector>

examples/flutter_view/android/app/src/main/res/layout/flutter_view_layout.xml

+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+  xmlns:app="http://schemas.android.com/apk/res-auto"
+  android:orientation="vertical"
+  android:layout_width="match_parent"
+  android:layout_height="match_parent"
+  >
+
+  <io.flutter.view.FlutterView
+    android:id="@+id/flutter_view"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:layout_weight="1"
+    />
+
+  <android.support.design.widget.CoordinatorLayout
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:layout_weight="1"
+    android:background="@color/grey"
+    >
+
+    <LinearLayout
+      android:layout_width="match_parent"
+      android:layout_height="match_parent"
+      android:orientation="vertical"
+      >
+
+      <TextView
+        android:id="@+id/button_tap"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:text="@string/button_tap"
+        android:layout_weight="1"
+        android:gravity="center"
+        android:textSize="@dimen/font_size"
+        />
+
+      <TextView
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:text="@string/android"
+        android:layout_margin="@dimen/edge_margin"
+        android:textSize="@dimen/platform_label_font_size"
+        android:background="@color/grey"
+        />
+
+    </LinearLayout>
+
+    <android.support.design.widget.FloatingActionButton
+      android:id="@+id/button"
+      android:layout_width="wrap_content"
+      android:layout_height="wrap_content"
+      android:layout_gravity="bottom|right"
+      android:elevation="@dimen/fab_elevation_resting"
+      app:pressedTranslationZ="@dimen/fab_elevation_pressed"
+      android:layout_margin="@dimen/edge_margin"
+      android:src="@drawable/ic_add_black_24dp"
+      android:clickable="true"
+      app:rippleColor="@color/grey"
+      app:fabSize="normal"
+      app:backgroundTint="@color/white"
+      />
+
+  </android.support.design.widget.CoordinatorLayout>
+
+</LinearLayout>

examples/flutter_view/android/app/src/main/res/values/colors.xml

+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+  <item name="grey" type="color">#9E9E9E</item>
+  <item name="white" type="color">#FFFFFF</item>
+</resources>
\ No newline at end of file

examples/flutter_view/android/app/src/main/res/values/dimens.xml

+<resources>
+  <dimen name="edge_margin">16dp</dimen>
+  <dimen name="fab_elevation_resting">6dp</dimen>
+  <dimen name="fab_elevation_pressed">12dp</dimen>
+  <dimen name="font_size">17sp</dimen>
+  <dimen name="platform_label_font_size">30sp</dimen>
+</resources>

examples/flutter_view/android/app/src/main/res/values/strings.xml

+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+  <string name="app_name">Flutter View</string>
+  <string name="title">Flutter Application</string>
+  <string name="button_tap">Flutter button tapped 0 times.</string>
+  <string name="android">Android</string>
+</resources>
\ No newline at end of file

examples/flutter_view/android/build.gradle

+buildscript {
+    repositories {
+        jcenter()
+    }
+
+    dependencies {
+        classpath 'com.android.tools.build:gradle:2.2.3'
+    }
+}
+
+allprojects {
+    repositories {
+        jcenter()
+    }
+}
+
+task clean(type: Delete) {
+    delete rootProject.buildDir
+}
+
+task wrapper(type: Wrapper) {
+    gradleVersion = '2.14.1'
+}

examples/flutter_view/android/gradle.properties

+org.gradle.jvmargs=-Xmx1536M

examples/flutter_view/android/settings.gradle

+include ':app'

examples/flutter_view/ios/.gitignore

+.idea/
+.vagrant/
+.sconsign.dblite
+.svn/
+
+.DS_Store
+*.swp
+profile
+
+DerivedData/
+build/
+
+*.pbxuser
+*.mode1v3
+*.mode2v3
+*.perspectivev3
+
+!default.pbxuser
+!default.mode1v3
+!default.mode2v3
+!default.perspectivev3
+
+xcuserdata
+
+*.moved-aside
+
+*.pyc
+*sync/
+Icon?
+.tags*
+
+/Flutter/app.flx
+/Flutter/app.dylib
+/Flutter/app.zip
+/Flutter/Flutter.framework
+/Flutter/Generated.xcconfig
+/ServiceDefinitions.json

examples/flutter_view/ios/Flutter/Debug.xcconfig

+#include "Generated.xcconfig"
+#include "Pods/Target Support Files/Pods-Runner/Pods-Runner.debug.xcconfig"

examples/flutter_view/ios/Flutter/Release.xcconfig

+#include "Generated.xcconfig"
+#include "Pods/Target Support Files/Pods-Runner/Pods-Runner.release.xcconfig"

examples/flutter_view/ios/Podfile

+# Uncomment this line to define a global platform for your project
+# platform :ios, '9.0'
+
+target 'Runner' do
+  # Uncomment this line if you're using Swift or would like to use dynamic frameworks
+   use_frameworks!
+
+  # Pods for Runner
+  pod 'MaterialControls', '~> 1.2.2'
+
+end

examples/flutter_view/ios/Podfile.lock

+PODFILE CHECKSUM: 665d7a704fb3ad8037fd80d414eb5db11ba3fc93
+
+COCOAPODS: 1.2.0

examples/flutter_view/ios/Pods/Manifest.lock

+PODFILE CHECKSUM: 665d7a704fb3ad8037fd80d414eb5db11ba3fc93
+
+COCOAPODS: 1.2.0

examples/flutter_view/ios/Pods/Pods.xcodeproj/xcshareddata/xcschemes/Pods-Runner.xcscheme

+<?xml version="1.0" encoding="UTF-8"?>
+<Scheme
+   LastUpgradeVersion = "0730"
+   version = "1.3">
+   <BuildAction
+      parallelizeBuildables = "YES"
+      buildImplicitDependencies = "YES">
+      <BuildActionEntries>
+         <BuildActionEntry
+            buildForTesting = "YES"
+            buildForRunning = "YES"
+            buildForProfiling = "YES"
+            buildForArchiving = "YES"
+            buildForAnalyzing = "YES">
+            <BuildableReference
+               BuildableIdentifier = "primary"
+               BlueprintIdentifier = "FCCF2F64518FB9CBFFFCA21B0B09BCCE"
+               BuildableName = "Pods_Runner.framework"
+               BlueprintName = "Pods-Runner"
+               ReferencedContainer = "container:Pods.xcodeproj">
+            </BuildableReference>
+         </BuildActionEntry>
+      </BuildActionEntries>
+   </BuildAction>
+   <TestAction
+      buildConfiguration = "Debug"
+      selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
+      selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
+      shouldUseLaunchSchemeArgsEnv = "YES">
+      <Testables>
+      </Testables>
+      <AdditionalOptions>
+      </AdditionalOptions>
+   </TestAction>
+   <LaunchAction
+      buildConfiguration = "Debug"
+      selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
+      selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
+      launchStyle = "0"
+      useCustomWorkingDirectory = "NO"
+      ignoresPersistentStateOnLaunch = "NO"
+      debugDocumentVersioning = "YES"
+      debugServiceExtension = "internal"
+      allowLocationSimulation = "YES">
+      <MacroExpansion>
+         <BuildableReference
+            BuildableIdentifier = "primary"
+            BlueprintIdentifier = "FCCF2F64518FB9CBFFFCA21B0B09BCCE"
+            BuildableName = "Pods_Runner.framework"
+            BlueprintName = "Pods-Runner"
+            ReferencedContainer = "container:Pods.xcodeproj">
+         </BuildableReference>
+      </MacroExpansion>
+      <AdditionalOptions>
+      </AdditionalOptions>
+   </LaunchAction>
+   <ProfileAction
+      buildConfiguration = "Release"
+      shouldUseLaunchSchemeArgsEnv = "YES"
+      savedToolIdentifier = ""
+      useCustomWorkingDirectory = "NO"
+      debugDocumentVersioning = "YES">
+      <MacroExpansion>
+         <BuildableReference
+            BuildableIdentifier = "primary"
+            BlueprintIdentifier = "FCCF2F64518FB9CBFFFCA21B0B09BCCE"
+            BuildableName = "Pods_Runner.framework"
+            BlueprintName = "Pods-Runner"
+            ReferencedContainer = "container:Pods.xcodeproj">
+         </BuildableReference>
+      </MacroExpansion>
+   </ProfileAction>
+   <AnalyzeAction
+      buildConfiguration = "Debug">
+   </AnalyzeAction>
+   <ArchiveAction
+      buildConfiguration = "Release"
+      revealArchiveInOrganizer = "YES">
+   </ArchiveAction>
+</Scheme>

examples/flutter_view/ios/Pods/Target Support Files/Pods-Runner/Pods-Runner-acknowledgements.markdown

+# Acknowledgements
+This application makes use of the following third party libraries:
+Generated by CocoaPods - https://cocoapods.org

examples/flutter_view/ios/Pods/Target Support Files/Pods-Runner/Pods-Runner-acknowledgements.plist

+<?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>PreferenceSpecifiers</key>
+	<array>
+		<dict>
+			<key>FooterText</key>
+			<string>This application makes use of the following third party libraries:</string>
+			<key>Title</key>
+			<string>Acknowledgements</string>
+			<key>Type</key>
+			<string>PSGroupSpecifier</string>
+		</dict>
+		<dict>
+			<key>FooterText</key>
+			<string>Generated by CocoaPods - https://cocoapods.org</string>
+			<key>Title</key>
+			<string></string>
+			<key>Type</key>
+			<string>PSGroupSpecifier</string>
+		</dict>
+	</array>
+	<key>StringsTable</key>
+	<string>Acknowledgements</string>
+	<key>Title</key>
+	<string>Acknowledgements</string>
+</dict>
+</plist>

examples/flutter_view/ios/Pods/Target Support Files/Pods-Runner/Pods-Runner-dummy.m

+#import <Foundation/Foundation.h>
+@interface PodsDummy_Pods_Runner : NSObject
+@end
+@implementation PodsDummy_Pods_Runner
+@end

examples/flutter_view/ios/Pods/Target Support Files/Pods-Runner/Pods-Runner-frameworks.sh

+#!/bin/sh
+set -e
+
+echo "mkdir -p ${CONFIGURATION_BUILD_DIR}/${FRAMEWORKS_FOLDER_PATH}"
+mkdir -p "${CONFIGURATION_BUILD_DIR}/${FRAMEWORKS_FOLDER_PATH}"
+
+SWIFT_STDLIB_PATH="${DT_TOOLCHAIN_DIR}/usr/lib/swift/${PLATFORM_NAME}"
+
+install_framework()
+{
+  if [ -r "${BUILT_PRODUCTS_DIR}/$1" ]; then
+    local source="${BUILT_PRODUCTS_DIR}/$1"
+  elif [ -r "${BUILT_PRODUCTS_DIR}/$(basename "$1")" ]; then
+    local source="${BUILT_PRODUCTS_DIR}/$(basename "$1")"
+  elif [ -r "$1" ]; then
+    local source="$1"
+  fi
+
+  local destination="${TARGET_BUILD_DIR}/${FRAMEWORKS_FOLDER_PATH}"
+
+  if [ -L "${source}" ]; then
+      echo "Symlinked..."
+      source="$(readlink "${source}")"
+  fi
+
+  # use filter instead of exclude so missing patterns dont' throw errors
+  echo "rsync -av --filter \"- CVS/\" --filter \"- .svn/\" --filter \"- .git/\" --filter \"- .hg/\" --filter \"- Headers\" --filter \"- PrivateHeaders\" --filter \"- Modules\" \"${source}\" \"${destination}\""
+  rsync -av --filter "- CVS/" --filter "- .svn/" --filter "- .git/" --filter "- .hg/" --filter "- Headers" --filter "- PrivateHeaders" --filter "- Modules" "${source}" "${destination}"
+
+  local basename
+  basename="$(basename -s .framework "$1")"
+  binary="${destination}/${basename}.framework/${basename}"
+  if ! [ -r "$binary" ]; then
+    binary="${destination}/${basename}"
+  fi
+
+  # Strip invalid architectures so "fat" simulator / device frameworks work on device
+  if [[ "$(file "$binary")" == *"dynamically linked shared library"* ]]; then
+    strip_invalid_archs "$binary"
+  fi
+
+  # Resign the code if required by the build settings to avoid unstable apps
+  code_sign_if_enabled "${destination}/$(basename "$1")"
+
+  # Embed linked Swift runtime libraries. No longer necessary as of Xcode 7.
+  if [ "${XCODE_VERSION_MAJOR}" -lt 7 ]; then
+    local swift_runtime_libs
+    swift_runtime_libs=$(xcrun otool -LX "$binary" | grep --color=never @rpath/libswift | sed -E s/@rpath\\/\(.+dylib\).*/\\1/g | uniq -u  && exit ${PIPESTATUS[0]})
+    for lib in $swift_runtime_libs; do
+      echo "rsync -auv \"${SWIFT_STDLIB_PATH}/${lib}\" \"${destination}\""
+      rsync -auv "${SWIFT_STDLIB_PATH}/${lib}" "${destination}"
+      code_sign_if_enabled "${destination}/${lib}"
+    done
+  fi
+}
+
+# Signs a framework with the provided identity
+code_sign_if_enabled() {
+  if [ -n "${EXPANDED_CODE_SIGN_IDENTITY}" -a "${CODE_SIGNING_REQUIRED}" != "NO" -a "${CODE_SIGNING_ALLOWED}" != "NO" ]; then
+    # Use the current code_sign_identitiy
+    echo "Code Signing $1 with Identity ${EXPANDED_CODE_SIGN_IDENTITY_NAME}"
+    local code_sign_cmd="/usr/bin/codesign --force --sign ${EXPANDED_CODE_SIGN_IDENTITY} ${OTHER_CODE_SIGN_FLAGS} --preserve-metadata=identifier,entitlements '$1'"
+
+    if [ "${COCOAPODS_PARALLEL_CODE_SIGN}" == "true" ]; then
+      code_sign_cmd="$code_sign_cmd &"
+    fi
+    echo "$code_sign_cmd"
+    eval "$code_sign_cmd"
+  fi
+}
+
+# Strip invalid architectures
+strip_invalid_archs() {
+  binary="$1"
+  # Get architectures for current file
+  archs="$(lipo -info "$binary" | rev | cut -d ':' -f1 | rev)"
+  stripped=""
+  for arch in $archs; do
+    if ! [[ "${VALID_ARCHS}" == *"$arch"* ]]; then
+      # Strip non-valid architectures in-place
+      lipo -remove "$arch" -output "$binary" "$binary" || exit 1
+      stripped="$stripped $arch"
+    fi
+  done
+  if [[ "$stripped" ]]; then
+    echo "Stripped $binary of architectures:$stripped"
+  fi
+}
+
+if [ "${COCOAPODS_PARALLEL_CODE_SIGN}" == "true" ]; then
+  wait
+fi

examples/flutter_view/ios/Pods/Target Support Files/Pods-Runner/Pods-Runner-resources.sh

+#!/bin/sh
+set -e
+
+mkdir -p "${TARGET_BUILD_DIR}/${UNLOCALIZED_RESOURCES_FOLDER_PATH}"
+
+RESOURCES_TO_COPY=${PODS_ROOT}/resources-to-copy-${TARGETNAME}.txt
+> "$RESOURCES_TO_COPY"
+
+XCASSET_FILES=()
+
+case "${TARGETED_DEVICE_FAMILY}" in
+  1,2)
+    TARGET_DEVICE_ARGS="--target-device ipad --target-device iphone"
+    ;;
+  1)
+    TARGET_DEVICE_ARGS="--target-device iphone"
+    ;;
+  2)
+    TARGET_DEVICE_ARGS="--target-device ipad"
+    ;;
+  3)
+    TARGET_DEVICE_ARGS="--target-device tv"
+    ;;
+  *)
+    TARGET_DEVICE_ARGS="--target-device mac"
+    ;;
+esac
+
+install_resource()
+{
+  if [[ "$1" = /* ]] ; then
+    RESOURCE_PATH="$1"
+  else
+    RESOURCE_PATH="${PODS_ROOT}/$1"
+  fi
+  if [[ ! -e "$RESOURCE_PATH" ]] ; then
+    cat << EOM
+error: Resource "$RESOURCE_PATH" not found. Run 'pod install' to update the copy resources script.
+EOM
+    exit 1
+  fi
+  case $RESOURCE_PATH in
+    *.storyboard)
+      echo "ibtool --reference-external-strings-file --errors --warnings --notices --minimum-deployment-target ${!DEPLOYMENT_TARGET_SETTING_NAME} --output-format human-readable-text --compile ${TARGET_BUILD_DIR}/${UNLOCALIZED_RESOURCES_FOLDER_PATH}/`basename \"$RESOURCE_PATH\" .storyboard`.storyboardc $RESOURCE_PATH --sdk ${SDKROOT} ${TARGET_DEVICE_ARGS}"
+      ibtool --reference-external-strings-file --errors --warnings --notices --minimum-deployment-target ${!DEPLOYMENT_TARGET_SETTING_NAME} --output-format human-readable-text --compile "${TARGET_BUILD_DIR}/${UNLOCALIZED_RESOURCES_FOLDER_PATH}/`basename \"$RESOURCE_PATH\" .storyboard`.storyboardc" "$RESOURCE_PATH" --sdk "${SDKROOT}" ${TARGET_DEVICE_ARGS}
+      ;;
+    *.xib)
+      echo "ibtool --reference-external-strings-file --errors --warnings --notices --minimum-deployment-target ${!DEPLOYMENT_TARGET_SETTING_NAME} --output-format human-readable-text --compile ${TARGET_BUILD_DIR}/${UNLOCALIZED_RESOURCES_FOLDER_PATH}/`basename \"$RESOURCE_PATH\" .xib`.nib $RESOURCE_PATH --sdk ${SDKROOT} ${TARGET_DEVICE_ARGS}"
+      ibtool --reference-external-strings-file --errors --warnings --notices --minimum-deployment-target ${!DEPLOYMENT_TARGET_SETTING_NAME} --output-format human-readable-text --compile "${TARGET_BUILD_DIR}/${UNLOCALIZED_RESOURCES_FOLDER_PATH}/`basename \"$RESOURCE_PATH\" .xib`.nib" "$RESOURCE_PATH" --sdk "${SDKROOT}" ${TARGET_DEVICE_ARGS}
+      ;;
+    *.framework)
+      echo "mkdir -p ${TARGET_BUILD_DIR}/${FRAMEWORKS_FOLDER_PATH}"
+      mkdir -p "${TARGET_BUILD_DIR}/${FRAMEWORKS_FOLDER_PATH}"
+      echo "rsync -av $RESOURCE_PATH ${TARGET_BUILD_DIR}/${FRAMEWORKS_FOLDER_PATH}"
+      rsync -av "$RESOURCE_PATH" "${TARGET_BUILD_DIR}/${FRAMEWORKS_FOLDER_PATH}"
+      ;;
+    *.xcdatamodel)
+      echo "xcrun momc \"$RESOURCE_PATH\" \"${TARGET_BUILD_DIR}/${UNLOCALIZED_RESOURCES_FOLDER_PATH}/`basename "$RESOURCE_PATH"`.mom\""
+      xcrun momc "$RESOURCE_PATH" "${TARGET_BUILD_DIR}/${UNLOCALIZED_RESOURCES_FOLDER_PATH}/`basename "$RESOURCE_PATH" .xcdatamodel`.mom"
+      ;;
+    *.xcdatamodeld)
+      echo "xcrun momc \"$RESOURCE_PATH\" \"${TARGET_BUILD_DIR}/${UNLOCALIZED_RESOURCES_FOLDER_PATH}/`basename "$RESOURCE_PATH" .xcdatamodeld`.momd\""
+      xcrun momc "$RESOURCE_PATH" "${TARGET_BUILD_DIR}/${UNLOCALIZED_RESOURCES_FOLDER_PATH}/`basename "$RESOURCE_PATH" .xcdatamodeld`.momd"
+      ;;
+    *.xcmappingmodel)
+      echo "xcrun mapc \"$RESOURCE_PATH\" \"${TARGET_BUILD_DIR}/${UNLOCALIZED_RESOURCES_FOLDER_PATH}/`basename "$RESOURCE_PATH" .xcmappingmodel`.cdm\""
+      xcrun mapc "$RESOURCE_PATH" "${TARGET_BUILD_DIR}/${UNLOCALIZED_RESOURCES_FOLDER_PATH}/`basename "$RESOURCE_PATH" .xcmappingmodel`.cdm"
+      ;;
+    *.xcassets)
+      ABSOLUTE_XCASSET_FILE="$RESOURCE_PATH"
+      XCASSET_FILES+=("$ABSOLUTE_XCASSET_FILE")
+      ;;
+    *)
+      echo "$RESOURCE_PATH"
+      echo "$RESOURCE_PATH" >> "$RESOURCES_TO_COPY"
+      ;;
+  esac
+}
+
+mkdir -p "${TARGET_BUILD_DIR}/${UNLOCALIZED_RESOURCES_FOLDER_PATH}"
+rsync -avr --copy-links --no-relative --exclude '*/.svn/*' --files-from="$RESOURCES_TO_COPY" / "${TARGET_BUILD_DIR}/${UNLOCALIZED_RESOURCES_FOLDER_PATH}"
+if [[ "${ACTION}" == "install" ]] && [[ "${SKIP_INSTALL}" == "NO" ]]; then
+  mkdir -p "${INSTALL_DIR}/${UNLOCALIZED_RESOURCES_FOLDER_PATH}"
+  rsync -avr --copy-links --no-relative --exclude '*/.svn/*' --files-from="$RESOURCES_TO_COPY" / "${INSTALL_DIR}/${UNLOCALIZED_RESOURCES_FOLDER_PATH}"
+fi
+rm -f "$RESOURCES_TO_COPY"
+
+if [[ -n "${WRAPPER_EXTENSION}" ]] && [ "`xcrun --find actool`" ] && [ -n "$XCASSET_FILES" ]
+then
+  # Find all other xcassets (this unfortunately includes those of path pods and other targets).
+  OTHER_XCASSETS=$(find "$PWD" -iname "*.xcassets" -type d)
+  while read line; do
+    if [[ $line != "${PODS_ROOT}*" ]]; then
+      XCASSET_FILES+=("$line")
+    fi
+  done <<<"$OTHER_XCASSETS"
+
+  printf "%s\0" "${XCASSET_FILES[@]}" | xargs -0 xcrun actool --output-format human-readable-text --notices --warnings --platform "${PLATFORM_NAME}" --minimum-deployment-target "${!DEPLOYMENT_TARGET_SETTING_NAME}" ${TARGET_DEVICE_ARGS} --compress-pngs --compile "${BUILT_PRODUCTS_DIR}/${UNLOCALIZED_RESOURCES_FOLDER_PATH}"
+fi

examples/flutter_view/ios/Pods/Target Support Files/Pods-Runner/Pods-Runner.debug.xcconfig

+GCC_PREPROCESSOR_DEFINITIONS = $(inherited) COCOAPODS=1
+LD_RUNPATH_SEARCH_PATHS = $(inherited) '@executable_path/Frameworks' '@loader_path/Frameworks'
+PODS_BUILD_DIR = $BUILD_DIR
+PODS_CONFIGURATION_BUILD_DIR = $PODS_BUILD_DIR/$(CONFIGURATION)$(EFFECTIVE_PLATFORM_NAME)
+PODS_ROOT = ${SRCROOT}/Pods

examples/flutter_view/ios/Pods/Target Support Files/Pods-Runner/Pods-Runner.release.xcconfig

+GCC_PREPROCESSOR_DEFINITIONS = $(inherited) COCOAPODS=1
+LD_RUNPATH_SEARCH_PATHS = $(inherited) '@executable_path/Frameworks' '@loader_path/Frameworks'
+PODS_BUILD_DIR = $BUILD_DIR
+PODS_CONFIGURATION_BUILD_DIR = $PODS_BUILD_DIR/$(CONFIGURATION)$(EFFECTIVE_PLATFORM_NAME)
+PODS_ROOT = ${SRCROOT}/Pods

examples/flutter_view/ios/Runner.xcodeproj/project.xcworkspace/contents.xcworkspacedata

+<?xml version="1.0" encoding="UTF-8"?>
+<Workspace
+   version = "1.0">
+   <FileRef
+      location = "group:Runner.xcodeproj">
+   </FileRef>
+   <FileRef
+      location = "group:Pods/Pods.xcodeproj">
+   </FileRef>
+</Workspace>

examples/flutter_view/ios/Runner.xcodeproj/xcshareddata/xcschemes/Runner.xcscheme

+<?xml version="1.0" encoding="UTF-8"?>
+<Scheme
+   LastUpgradeVersion = "0730"
+   version = "1.3">
+   <BuildAction
+      parallelizeBuildables = "YES"
+      buildImplicitDependencies = "YES">
+      <BuildActionEntries>
+         <BuildActionEntry
+            buildForTesting = "YES"
+            buildForRunning = "YES"
+            buildForProfiling = "YES"
+            buildForArchiving = "YES"
+            buildForAnalyzing = "YES">
+            <BuildableReference
+               BuildableIdentifier = "primary"
+               BlueprintIdentifier = "97C146ED1CF9000F007C117D"
+               BuildableName = "Runner.app"
+               BlueprintName = "Runner"
+               ReferencedContainer = "container:Runner.xcodeproj">
+            </BuildableReference>
+         </BuildActionEntry>
+      </BuildActionEntries>
+   </BuildAction>
+   <TestAction
+      buildConfiguration = "Debug"
+      selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
+      selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
+      shouldUseLaunchSchemeArgsEnv = "YES">
+      <Testables>
+      </Testables>
+      <MacroExpansion>
+         <BuildableReference
+            BuildableIdentifier = "primary"
+            BlueprintIdentifier = "97C146ED1CF9000F007C117D"
+            BuildableName = "Runner.app"
+            BlueprintName = "Runner"
+            ReferencedContainer = "container:Runner.xcodeproj">
+         </BuildableReference>
+      </MacroExpansion>
+      <AdditionalOptions>
+      </AdditionalOptions>
+   </TestAction>
+   <LaunchAction
+      buildConfiguration = "Debug"
+      selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
+      selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
+      launchStyle = "0"
+      useCustomWorkingDirectory = "NO"
+      ignoresPersistentStateOnLaunch = "NO"
+      debugDocumentVersioning = "YES"
+      debugServiceExtension = "internal"
+      allowLocationSimulation = "YES">
+      <BuildableProductRunnable
+         runnableDebuggingMode = "0">
+         <BuildableReference
+            BuildableIdentifier = "primary"
+            BlueprintIdentifier = "97C146ED1CF9000F007C117D"
+            BuildableName = "Runner.app"
+            BlueprintName = "Runner"
+            ReferencedContainer = "container:Runner.xcodeproj">
+         </BuildableReference>
+      </BuildableProductRunnable>
+      <AdditionalOptions>
+      </AdditionalOptions>
+   </LaunchAction>
+   <ProfileAction
+      buildConfiguration = "Release"
+      shouldUseLaunchSchemeArgsEnv = "YES"
+      savedToolIdentifier = ""
+      useCustomWorkingDirectory = "NO"
+      debugDocumentVersioning = "YES">
+      <BuildableProductRunnable
+         runnableDebuggingMode = "0">
+         <BuildableReference
+            BuildableIdentifier = "primary"
+            BlueprintIdentifier = "97C146ED1CF9000F007C117D"
+            BuildableName = "Runner.app"
+            BlueprintName = "Runner"
+            ReferencedContainer = "container:Runner.xcodeproj">
+         </BuildableReference>
+      </BuildableProductRunnable>
+   </ProfileAction>
+   <AnalyzeAction
+      buildConfiguration = "Debug">
+   </AnalyzeAction>
+   <ArchiveAction
+      buildConfiguration = "Release"
+      revealArchiveInOrganizer = "YES">
+   </ArchiveAction>
+</Scheme>

examples/flutter_view/ios/Runner.xcworkspace/contents.xcworkspacedata

+<?xml version="1.0" encoding="UTF-8"?>
+<Workspace
+   version = "1.0">
+   <FileRef
+      location = "group:Runner.xcodeproj">
+   </FileRef>
+   <FileRef
+      location = "group:Pods/Pods.xcodeproj">
+   </FileRef>
+</Workspace>

examples/flutter_view/ios/Runner/AppDelegate.h

+#import <UIKit/UIKit.h>
+#import <Flutter/Flutter.h>
+
+@interface AppDelegate : FlutterAppDelegate
+
+@end

examples/flutter_view/ios/Runner/AppDelegate.m

+#include "AppDelegate.h"
+#import <Flutter/Flutter.h>
+
+@implementation AppDelegate
+
+- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
+  // Override point for customization after application launch.
+  return YES;
+}
+
+@end

examples/flutter_view/ios/Runner/Assets.xcassets/AppIcon.appiconset/Contents.json

+{
+  "images" : [
+    {
+      "idiom" : "iphone",
+      "size" : "20x20",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "20x20",
+      "scale" : "3x"
+    },
+    {
+      "size" : "29x29",
+      "idiom" : "iphone",
+      "filename" : "Icon-App-29x29@1x.png",
+      "scale" : "1x"
+    },
+    {
+      "size" : "29x29",
+      "idiom" : "iphone",
+      "filename" : "Icon-App-29x29@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "29x29",
+      "idiom" : "iphone",
+      "filename" : "Icon-App-29x29@3x.png",
+      "scale" : "3x"
+    },
+    {
+      "size" : "40x40",
+      "idiom" : "iphone",
+      "filename" : "Icon-App-40x40@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "40x40",
+      "idiom" : "iphone",
+      "filename" : "Icon-App-40x40@3x.png",
+      "scale" : "3x"
+    },
+    {
+      "size" : "60x60",
+      "idiom" : "iphone",
+      "filename" : "Icon-App-60x60@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "60x60",
+      "idiom" : "iphone",
+      "filename" : "Icon-App-60x60@3x.png",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "20x20",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "20x20",
+      "scale" : "2x"
+    },
+    {
+      "size" : "29x29",
+      "idiom" : "ipad",
+      "filename" : "Icon-App-29x29@1x.png",
+      "scale" : "1x"
+    },
+    {
+      "size" : "29x29",
+      "idiom" : "ipad",
+      "filename" : "Icon-App-29x29@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "40x40",
+      "idiom" : "ipad",
+      "filename" : "Icon-App-40x40@1x.png",
+      "scale" : "1x"
+    },
+    {
+      "size" : "40x40",
+      "idiom" : "ipad",
+      "filename" : "Icon-App-40x40@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "76x76",
+      "idiom" : "ipad",
+      "filename" : "Icon-App-76x76@1x.png",
+      "scale" : "1x"
+    },
+    {
+      "size" : "76x76",
+      "idiom" : "ipad",
+      "filename" : "Icon-App-76x76@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "83.5x83.5",
+      "idiom" : "ipad",
+      "filename" : "Icon-App-83.5x83.5@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "40x40",
+      "idiom" : "iphone",
+      "filename" : "Icon-App-40x40@1x.png",
+      "scale" : "1x"
+    },
+    {
+      "size" : "60x60",
+      "idiom" : "iphone",
+      "filename" : "Icon-App-60x60@1x.png",
+      "scale" : "1x"
+    },
+    {
+      "size" : "76x76",
+      "idiom" : "ipad",
+      "filename" : "Icon-App-76x76@3x.png",
+      "scale" : "3x"
+    }
+  ],
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}
\ No newline at end of file

examples/flutter_view/ios/Runner/Base.lproj/LaunchScreen.storyboard

+<?xml version="1.0" encoding="UTF-8"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="10117" systemVersion="16D32" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" launchScreen="YES" useTraitCollections="YES" initialViewController="01J-lp-oVM">
+    <dependencies>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="10085"/>
+    </dependencies>
+    <scenes>
+        <!--View Controller-->
+        <scene sceneID="EHf-IW-A2E">
+            <objects>
+                <viewController id="01J-lp-oVM" sceneMemberID="viewController">
+                    <layoutGuides>
+                        <viewControllerLayoutGuide type="top" id="Llm-lL-Icb"/>
+                        <viewControllerLayoutGuide type="bottom" id="xb3-aO-Qok"/>
+                    </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"/>
+                    </view>
+                </viewController>
+                <placeholder placeholderIdentifier="IBFirstResponder" id="iYj-Kq-Ea1" userLabel="First Responder" sceneMemberID="firstResponder"/>
+            </objects>
+            <point key="canvasLocation" x="53" y="375"/>
+        </scene>
+    </scenes>
+</document>

examples/flutter_view/ios/Runner/Info.plist

+<?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>en</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>flutter_view</string>
+	<key>CFBundlePackageType</key>
+	<string>APPL</string>
+	<key>CFBundleShortVersionString</key>
+	<string>1.0</string>
+	<key>CFBundleSignature</key>
+	<string>????</string>
+	<key>CFBundleVersion</key>
+	<string>1</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>
+		<string>UIInterfaceOrientationLandscapeLeft</string>
+		<string>UIInterfaceOrientationLandscapeRight</string>
+	</array>
+	<key>UISupportedInterfaceOrientations~ipad</key>
+	<array>
+		<string>UIInterfaceOrientationPortrait</string>
+		<string>UIInterfaceOrientationPortraitUpsideDown</string>
+		<string>UIInterfaceOrientationLandscapeLeft</string>
+		<string>UIInterfaceOrientationLandscapeRight</string>
+	</array>
+	<key>UIViewControllerBasedStatusBarAppearance</key>
+	<false/>
+</dict>
+</plist>

examples/flutter_view/ios/Runner/MainViewController.h

+// Copyright 2017 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef MainViewController_h
+#define MainViewController_h
+
+#endif /* MainViewController_h */
+
+#import <UIKit/UIKit.h>
+#import <Flutter/Flutter.h>
+#import "NativeViewController.h"
+
+@protocol NativeViewControllerDelegate;
+
+@interface MainViewController : UIViewController <FlutterMessageListener,
+                                                  NativeViewControllerDelegate>
+@end
+

examples/flutter_view/ios/Runner/MainViewController.m

+// Copyright 2017 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.Copyright © 2017 The Chromium Authors. All rights reserved.
+
+
+#import <Foundation/Foundation.h>
+
+#import "MainViewController.h"
+#import "NativeViewController.h"
+
+@interface MainViewController ()
+
+@property (strong, nonatomic) NativeViewController* nativeViewController;
+@property (strong, nonatomic) FlutterViewController* flutterViewController;
+@end
+
+static NSString* const emptyString = @"";
+static NSString* const channel = @"increment";
+
+@implementation MainViewController
+
+- (NSString*) messageName {
+  return channel;
+}
+
+- (NSString*)didReceiveString:(NSString*)message {
+  [self.nativeViewController didReceiveIncrement];
+  return emptyString;
+}
+
+- (void)prepareForSegue:(UIStoryboardSegue*)segue sender:(id)sender {
+
+  if ([segue.identifier isEqualToString: @"NativeViewControllerSegue"]) {
+    self.nativeViewController = segue.destinationViewController;
+    self.nativeViewController.delegate = self;
+  }
+
+  if ([segue.identifier isEqualToString:@"FlutterViewControllerSegue"]) {
+     self.flutterViewController = segue.destinationViewController;
+    [self.flutterViewController addMessageListener:self];
+  }
+}
+
+- (void)didTapIncrementButton {
+  [self.flutterViewController sendString:emptyString withMessageName:self.messageName];
+}
+
+@end

examples/flutter_view/ios/Runner/NativeViewController.h

+// Copyright 2017 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#import <UIKit/UIKit.h>
+
+
+@protocol NativeViewControllerDelegate <NSObject>
+
+- (void)didTapIncrementButton;
+
+@end
+
+@interface NativeViewController: UIViewController 
+@property (strong, nonatomic) id<NativeViewControllerDelegate> delegate;
+- (void) didReceiveIncrement;
+@end

examples/flutter_view/ios/Runner/NativeViewController.m

+// Copyright 2017 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#import <Foundation/Foundation.h>
+
+#import "NativeViewController.h"
+#import "MDButton.h"
+
+@interface NativeViewController ()
+@property int counter;
+@property (weak, nonatomic) IBOutlet UILabel* incrementLabel;
+@end
+
+@implementation NativeViewController
+
+- (void)viewDidLoad {
+  [super viewDidLoad];
+  self.counter = 0;
+}
+
+- (IBAction)handleIncrement:(MDButton*)sender {
+  [self.delegate didTapIncrementButton];
+}
+
+- (void)didReceiveIncrement {
+  self.counter++;
+
+  NSString* text = [NSString stringWithFormat:@"Flutter button tapped %d %@.",
+                                              self.counter,
+                                              (self.counter == 1)? @"time" : @"times"];
+  self.incrementLabel.text = text;
+}
+
+@end

examples/flutter_view/ios/Runner/main.m

+#import <UIKit/UIKit.h>
+#import <Flutter/Flutter.h>
+#import "AppDelegate.h"
+
+int main(int argc, char * argv[]) {
+    @autoreleasepool {
+        return UIApplicationMain(argc, argv, nil,
+                                 NSStringFromClass([AppDelegate class]));
+    }
+}

examples/flutter_view/lib/main.dart

+import 'dart:async';
+import 'package:flutter/material.dart';
+import 'package:flutter/services.dart';
+
+void main() {
+  runApp(new FlutterView());
+}
+
+class FlutterView extends StatelessWidget {
+
+  @override
+  Widget build(BuildContext context) {
+    return new MaterialApp(
+      title: 'Flutter View',
+      theme: new ThemeData(
+        primarySwatch: Colors.grey,
+      ),
+      home: new MyHomePage(title: 'Flutter Demo Home Page'),
+    );
+  }
+}
+
+class MyHomePage extends StatefulWidget {
+  MyHomePage({Key key, this.title}) : super(key: key);
+
+  final String title;
+
+  @override
+  _MyHomePageState createState() => new _MyHomePageState();
+}
+
+class _MyHomePageState extends State<MyHomePage> {
+  static const String _channel = "increment";
+  static const String _emptyMessage = "";
+
+  int _counter = 0;
+
+  Future<String> handlePlatformIncrement(String message) async {
+    _incrementCounter();
+    return _emptyMessage;
+  }
+
+  void _incrementCounter() {
+    setState(() {
+      _counter++;
+    });
+  }
+
+  void _sendFlutterIncrement() {
+    PlatformMessages.sendString(_channel, _emptyMessage);
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    PlatformMessages.setStringMessageHandler(_channel,
+                                             handlePlatformIncrement);
+    return new Scaffold(
+      body: new Column(
+        crossAxisAlignment: CrossAxisAlignment.start,
+        children: <Widget>[
+          new Expanded(
+            child: new Center(
+              child: new Text(
+                'Platform button tapped $_counter time${ _counter == 1 ? '' : 's' }.',
+                style: new TextStyle(fontSize: 17.0))
+            ),
+          ),
+          new Container(
+            padding: const EdgeInsets.only(bottom: 15.0, left: 5.0),
+            child: new Row(
+              children: <Widget>[
+                new Image.asset('assets/flutter-mark-square-64.png', scale: 1.5),
+                new Text('Flutter', style: new TextStyle(fontSize: 30.0)),
+              ],
+            ),
+          ),
+        ],
+      ),
+      floatingActionButton: new FloatingActionButton(
+        onPressed: _sendFlutterIncrement,
+        child: new Icon(Icons.add),
+      ),
+    );
+  }
+}

examples/flutter_view/pubspec.yaml

+name: flutter_view
+description: A new flutter project.
+
+dependencies:
+  flutter:
+    sdk: flutter
+
+flutter:
+  uses-material-design: true
+  assets:
+    - assets/flutter-mark-square-64.png
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