Add swift version of Platform Channel example (#9098)

* wip

* wip

* delete main.m

* readd main.m

* update to use new channel api

* update android

* removed android/

* remove debug print

* remomved main.m

* Update year in copyright

* break long line and update name

* mit comments

* update examples/README

* break line

* update README

* update test
diff --git a/examples/README.md b/examples/README.md
index 2aa1d48..73005d8 100644
--- a/examples/README.md
+++ b/examples/README.md
@@ -29,6 +29,11 @@
   demonstrates how to connect a Flutter app to platform-specific APIs. For
   documentation, see https://flutter.io/platform-channels/ .
 
+- **Platform Channel Swift** The [platform channel swift
+  app](platform_channel_swift) is the same as [platform
+  channel](platform_channel) but the iOS version is in Swift and there
+  is no Android version.
+
 - **Flutter View** The [flutter view app](flutter_view) demonstrates how to
   embed Flutter within an iOS or Android app.
 
diff --git a/examples/platform_channel_swift/.gitignore b/examples/platform_channel_swift/.gitignore
new file mode 100644
index 0000000..9b3426e
--- /dev/null
+++ b/examples/platform_channel_swift/.gitignore
@@ -0,0 +1,8 @@
+.DS_Store
+.atom/
+.idea
+.packages
+.pub/
+build/
+packages/
+pubspec.lock
diff --git a/examples/platform_channel_swift/.idea/modules.xml b/examples/platform_channel_swift/.idea/modules.xml
new file mode 100644
index 0000000..002f5cb
--- /dev/null
+++ b/examples/platform_channel_swift/.idea/modules.xml
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ProjectModuleManager">
+    <modules>
+      <module fileurl="file://$PROJECT_DIR$/platform_channel_swift.iml" filepath="$PROJECT_DIR$/platform_channel_swift.iml" />
+    </modules>
+  </component>
+</project>
diff --git a/examples/platform_channel_swift/.idea/runConfigurations/main_dart.xml b/examples/platform_channel_swift/.idea/runConfigurations/main_dart.xml
new file mode 100644
index 0000000..aab7b5c
--- /dev/null
+++ b/examples/platform_channel_swift/.idea/runConfigurations/main_dart.xml
@@ -0,0 +1,6 @@
+<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
diff --git a/examples/platform_channel_swift/.idea/workspace.xml b/examples/platform_channel_swift/.idea/workspace.xml
new file mode 100644
index 0000000..1e7e0cd
--- /dev/null
+++ b/examples/platform_channel_swift/.idea/workspace.xml
@@ -0,0 +1,29 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="FileEditorManager">
+    <leaf>
+      <file leaf-file-name="main.dart" pinned="false" current-in-tab="true">
+        <entry file="file://$PROJECT_DIR$/lib/main.dart">
+          <provider selected="true" editor-type-id="text-editor">
+            <state relative-caret-position="0">
+              <caret line="0" column="0" lean-forward="false" selection-start-line="0" selection-start-column="0" selection-end-line="0" selection-end-column="0" />
+            </state>
+          </provider>
+        </entry>
+      </file>
+    </leaf>
+  </component>
+  <component name="ToolWindowManager">
+    <editor active="true" />
+    <layout>
+      <window_info id="Project" active="false" anchor="left" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="true" show_stripe_button="true" weight="0.25" sideWeight="0.5" order="0" side_tool="false" content_ui="combo" />
+    </layout>
+  </component>
+  <component name="ProjectView">
+    <panes>
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+      </pane>
+    </panes>
+  </component>
+</project>
diff --git a/examples/platform_channel_swift/README.md b/examples/platform_channel_swift/README.md
new file mode 100644
index 0000000..561a1ab
--- /dev/null
+++ b/examples/platform_channel_swift/README.md
@@ -0,0 +1,16 @@
+# Example of calling platform services from Flutter
+
+This project demonstrates how to connect a Flutter app to platform
+specific services on iOS using Swift. The equivalent version of this
+project in Objective C is found in examples/platform_channel.
+
+You can read more about
+[accessing platform and third-party services in Flutter](https://flutter.io/platform-channels/).
+
+## iOS
+You can use the commands `flutter build` and `flutter run` from the app's root
+directory to build/run the app or you can open `ios/Runner.xcworkspace` in Xcode
+and build/run the project as usual.
+
+## Android
+We refer to the platform_channel project.
diff --git a/examples/platform_channel_swift/ios/.gitignore b/examples/platform_channel_swift/ios/.gitignore
new file mode 100644
index 0000000..0a0efc3
--- /dev/null
+++ b/examples/platform_channel_swift/ios/.gitignore
@@ -0,0 +1,38 @@
+.idea/
+.vagrant/
+.sconsign.dblite
+.svn/
+
+.DS_Store
+*.swp
+*.lock
+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.zip
+/Flutter/App.framework
+/Flutter/Flutter.framework
+/Flutter/Generated.xcconfig
+/ServiceDefinitions.json
diff --git a/examples/platform_channel_swift/ios/Flutter/AppFrameworkInfo.plist b/examples/platform_channel_swift/ios/Flutter/AppFrameworkInfo.plist
new file mode 100644
index 0000000..6c2de80
--- /dev/null
+++ b/examples/platform_channel_swift/ios/Flutter/AppFrameworkInfo.plist
@@ -0,0 +1,30 @@
+<?xml version="1.0" encoding="UTF-8"?>
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+  <key>CFBundleExecutable</key>
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+  <key>CFBundleInfoDictionaryVersion</key>
+  <string>6.0</string>
+  <key>CFBundleName</key>
+  <string>App</string>
+  <key>CFBundlePackageType</key>
+  <string>FMWK</string>
+  <key>CFBundleShortVersionString</key>
+  <string>1.0</string>
+  <key>CFBundleSignature</key>
+  <string>????</string>
+  <key>CFBundleVersion</key>
+  <string>1.0</string>
+  <key>UIRequiredDeviceCapabilities</key>
+  <array>
+    <string>arm64</string>
+  </array>
+  <key>MinimumOSVersion</key>
+  <string>8.0</string>
+</dict>
+</plist>
diff --git a/examples/platform_channel_swift/ios/Flutter/Flutter.xcconfig b/examples/platform_channel_swift/ios/Flutter/Flutter.xcconfig
new file mode 100644
index 0000000..592ceee
--- /dev/null
+++ b/examples/platform_channel_swift/ios/Flutter/Flutter.xcconfig
@@ -0,0 +1 @@
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diff --git a/examples/platform_channel_swift/ios/Runner.xcodeproj/project.pbxproj b/examples/platform_channel_swift/ios/Runner.xcodeproj/project.pbxproj
new file mode 100644
index 0000000..f7b4c22
--- /dev/null
+++ b/examples/platform_channel_swift/ios/Runner.xcodeproj/project.pbxproj
@@ -0,0 +1,401 @@
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+				CLANG_ENABLE_MODULES = YES;
+				CLANG_ENABLE_OBJC_ARC = YES;
+				CLANG_WARN_BOOL_CONVERSION = YES;
+				CLANG_WARN_CONSTANT_CONVERSION = 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_OBJC_ROOT_CLASS = YES_ERROR;
+				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 = 8.0;
+				MTL_ENABLE_DEBUG_INFO = NO;
+				SDKROOT = iphoneos;
+				TARGETED_DEVICE_FAMILY = "1,2";
+				VALIDATE_PRODUCT = YES;
+			};
+			name = Release;
+		};
+		97C147061CF9000F007C117D /* Debug */ = {
+			isa = XCBuildConfiguration;
+			baseConfigurationReference = 9740EEB21CF90195004384FC /* Flutter.xcconfig */;
+			buildSettings = {
+				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				CLANG_ENABLE_MODULES = YES;
+				ENABLE_BITCODE = NO;
+				FRAMEWORK_SEARCH_PATHS = (
+					"$(inherited)",
+					"$(PROJECT_DIR)/Flutter",
+				);
+				INFOPLIST_FILE = Runner/Info.plist;
+				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks";
+				LIBRARY_SEARCH_PATHS = (
+					"$(inherited)",
+					"$(PROJECT_DIR)/Flutter",
+				);
+				PRODUCT_BUNDLE_IDENTIFIER = com.example.PlatformChannelSwift;
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				SWIFT_OBJC_BRIDGING_HEADER = "Runner/Runner-Bridging-Header.h";
+				SWIFT_OPTIMIZATION_LEVEL = "-Onone";
+				SWIFT_VERSION = 3.0;
+			};
+			name = Debug;
+		};
+		97C147071CF9000F007C117D /* Release */ = {
+			isa = XCBuildConfiguration;
+			baseConfigurationReference = 9740EEB21CF90195004384FC /* Flutter.xcconfig */;
+			buildSettings = {
+				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				CLANG_ENABLE_MODULES = YES;
+				ENABLE_BITCODE = NO;
+				FRAMEWORK_SEARCH_PATHS = (
+					"$(inherited)",
+					"$(PROJECT_DIR)/Flutter",
+				);
+				INFOPLIST_FILE = Runner/Info.plist;
+				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks";
+				LIBRARY_SEARCH_PATHS = (
+					"$(inherited)",
+					"$(PROJECT_DIR)/Flutter",
+				);
+				PRODUCT_BUNDLE_IDENTIFIER = com.example.PlatformChannelSwift;
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				SWIFT_OBJC_BRIDGING_HEADER = "Runner/Runner-Bridging-Header.h";
+				SWIFT_VERSION = 3.0;
+			};
+			name = Release;
+		};
+/* End XCBuildConfiguration section */
+
+/* Begin XCConfigurationList section */
+		97C146E91CF9000F007C117D /* Build configuration list for PBXProject "Runner" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				97C147031CF9000F007C117D /* Debug */,
+				97C147041CF9000F007C117D /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+		97C147051CF9000F007C117D /* Build configuration list for PBXNativeTarget "Runner" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				97C147061CF9000F007C117D /* Debug */,
+				97C147071CF9000F007C117D /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+/* End XCConfigurationList section */
+	};
+	rootObject = 97C146E61CF9000F007C117D /* Project object */;
+}
diff --git a/examples/platform_channel_swift/ios/Runner.xcodeproj/project.xcworkspace/contents.xcworkspacedata b/examples/platform_channel_swift/ios/Runner.xcodeproj/project.xcworkspace/contents.xcworkspacedata
new file mode 100644
index 0000000..fbf2f43
--- /dev/null
+++ b/examples/platform_channel_swift/ios/Runner.xcodeproj/project.xcworkspace/contents.xcworkspacedata
@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Workspace
+   version = "1.0">
+   <FileRef
+      location = "self:PlatformChannel.xcodeproj">
+   </FileRef>
+</Workspace>
diff --git a/examples/platform_channel_swift/ios/Runner/AppDelegate.swift b/examples/platform_channel_swift/ios/Runner/AppDelegate.swift
new file mode 100644
index 0000000..7a8aba8
--- /dev/null
+++ b/examples/platform_channel_swift/ios/Runner/AppDelegate.swift
@@ -0,0 +1,40 @@
+// 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
+import Flutter
+
+@UIApplicationMain
+@objc class AppDelegate: FlutterAppDelegate {
+
+  override func application(
+    _ application: UIApplication,
+    didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool {
+      let controller : FlutterViewController = window?.rootViewController as! FlutterViewController;
+      let batteryChannel = FlutterMethodChannel.init(name: "samples.flutter.io/battery",
+                                                     binaryMessenger: controller);
+      batteryChannel.setMethodCallHandler({
+        (call: FlutterMethodCall, result: FlutterResultReceiver) -> Void in
+        if ("getBatteryLevel" == call.method) {
+          receiveBatteryLevel(result: result);
+        } else {
+          result(FlutterMethodNotImplemented);
+        }
+      }
+    );
+    return true
+  }
+}
+
+private func receiveBatteryLevel(result: FlutterResultReceiver) {
+  let device = UIDevice.current;
+  device.isBatteryMonitoringEnabled = true;
+  if (device.batteryState == UIDeviceBatteryState.unknown) {
+    result(FlutterError.init(code: "UNAVAILABLE",
+                             message: "Battery info unavailable",
+                             details: nil));
+  } else {
+    result(Int(device.batteryLevel * 100));
+  }
+}
diff --git a/examples/platform_channel_swift/ios/Runner/Assets.xcassets/AppIcon.appiconset/Contents.json b/examples/platform_channel_swift/ios/Runner/Assets.xcassets/AppIcon.appiconset/Contents.json
new file mode 100644
index 0000000..1d060ed
--- /dev/null
+++ b/examples/platform_channel_swift/ios/Runner/Assets.xcassets/AppIcon.appiconset/Contents.json
@@ -0,0 +1,93 @@
+{
+  "images" : [
+    {
+      "idiom" : "iphone",
+      "size" : "20x20",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "20x20",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "29x29",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "29x29",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "40x40",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "40x40",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "60x60",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "60x60",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "20x20",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "20x20",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "29x29",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "29x29",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "40x40",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "40x40",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "76x76",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "76x76",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "83.5x83.5",
+      "scale" : "2x"
+    }
+  ],
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}
\ No newline at end of file
diff --git a/examples/platform_channel_swift/ios/Runner/Base.lproj/LaunchScreen.storyboard b/examples/platform_channel_swift/ios/Runner/Base.lproj/LaunchScreen.storyboard
new file mode 100644
index 0000000..49df158
--- /dev/null
+++ b/examples/platform_channel_swift/ios/Runner/Base.lproj/LaunchScreen.storyboard
@@ -0,0 +1,28 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="11762" systemVersion="16D32" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" launchScreen="YES" useTraitCollections="YES" colorMatched="NO" initialViewController="01J-lp-oVM">
+    <dependencies>
+        <deployment identifier="iOS"/>
+        <development version="7000" identifier="xcode"/>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="11757"/>
+    </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" red="1" green="1" blue="1" alpha="1" colorSpace="calibratedRGB"/>
+                    </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>
diff --git a/examples/platform_channel_swift/ios/Runner/Base.lproj/Main.storyboard b/examples/platform_channel_swift/ios/Runner/Base.lproj/Main.storyboard
new file mode 100644
index 0000000..9962b2e
--- /dev/null
+++ b/examples/platform_channel_swift/ios/Runner/Base.lproj/Main.storyboard
@@ -0,0 +1,30 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="11762" systemVersion="16D32" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" colorMatched="YES" initialViewController="BYZ-38-t0r">
+    <device id="retina4_7" orientation="portrait">
+        <adaptation id="fullscreen"/>
+    </device>
+    <dependencies>
+        <deployment identifier="iOS"/>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="11757"/>
+        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
+    </dependencies>
+    <scenes>
+        <!--Flutter View Controller-->
+        <scene sceneID="tne-QT-ifu">
+            <objects>
+                <viewController id="BYZ-38-t0r" customClass="FlutterViewController" sceneMemberID="viewController">
+                    <layoutGuides>
+                        <viewControllerLayoutGuide type="top" id="y3c-jy-aDJ"/>
+                        <viewControllerLayoutGuide type="bottom" id="wfy-db-euE"/>
+                    </layoutGuides>
+                    <view key="view" contentMode="scaleToFill" id="8bC-Xf-vdC">
+                        <rect key="frame" x="0.0" y="0.0" width="375" height="667"/>
+                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
+                        <color key="backgroundColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
+                    </view>
+                </viewController>
+                <placeholder placeholderIdentifier="IBFirstResponder" id="dkx-z0-nzr" sceneMemberID="firstResponder"/>
+            </objects>
+        </scene>
+    </scenes>
+</document>
diff --git a/examples/platform_channel_swift/ios/Runner/Info.plist b/examples/platform_channel_swift/ios/Runner/Info.plist
new file mode 100644
index 0000000..e5b912a
--- /dev/null
+++ b/examples/platform_channel_swift/ios/Runner/Info.plist
@@ -0,0 +1,47 @@
+<?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>PlatformChannel</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>armv7</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>
+</dict>
+</plist>
diff --git a/examples/platform_channel_swift/ios/Runner/Runner-Bridging-Header.h b/examples/platform_channel_swift/ios/Runner/Runner-Bridging-Header.h
new file mode 100644
index 0000000..b314265
--- /dev/null
+++ b/examples/platform_channel_swift/ios/Runner/Runner-Bridging-Header.h
@@ -0,0 +1,3 @@
+
+#import "../Flutter/Flutter.framework/Headers/Flutter.h"
+
diff --git a/examples/platform_channel_swift/lib/main.dart b/examples/platform_channel_swift/lib/main.dart
new file mode 100644
index 0000000..9d9f639
--- /dev/null
+++ b/examples/platform_channel_swift/lib/main.dart
@@ -0,0 +1,53 @@
+// 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 'dart:async';
+
+import 'package:flutter/material.dart';
+import 'package:flutter/services.dart';
+
+class PlatformChannel extends StatefulWidget {
+  @override
+  _PlatformChannelState createState() => new _PlatformChannelState();
+}
+
+class _PlatformChannelState extends State<PlatformChannel> {
+  static const PlatformMethodChannel platform = const PlatformMethodChannel('samples.flutter.io/battery');
+  String _batteryLevel = '';
+
+  Future<Null> _getBatteryLevel() async {
+    String batteryLevel;
+    try {
+      final int result = await platform.invokeMethod('getBatteryLevel');
+      batteryLevel = 'Battery level at $result % .';
+    } on PlatformException catch (e) {
+      batteryLevel = "Failed to get battery level: '${e.message}'.";
+    } 
+    setState(() {
+      _batteryLevel = batteryLevel;
+    });
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return new Material(
+      child: new Center(
+        child: new Column(
+          mainAxisAlignment: MainAxisAlignment.spaceEvenly,
+          children: <Widget>[
+            new RaisedButton(
+              child: new Text('Get Battery Level'),
+              onPressed: _getBatteryLevel,
+            ),
+            new Text(_batteryLevel, key: new Key('Battery level label')),
+          ],
+        ),
+      ),
+    );
+  }
+}
+
+void main() {
+  runApp(new PlatformChannel());
+}
diff --git a/examples/platform_channel_swift/platform_channel_swift.iml b/examples/platform_channel_swift/platform_channel_swift.iml
new file mode 100644
index 0000000..c444702
--- /dev/null
+++ b/examples/platform_channel_swift/platform_channel_swift.iml
@@ -0,0 +1,15 @@
+<?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
diff --git a/examples/platform_channel_swift/platform_services.iml b/examples/platform_channel_swift/platform_services.iml
new file mode 100644
index 0000000..c444702
--- /dev/null
+++ b/examples/platform_channel_swift/platform_services.iml
@@ -0,0 +1,15 @@
+<?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
diff --git a/examples/platform_channel_swift/pubspec.yaml b/examples/platform_channel_swift/pubspec.yaml
new file mode 100644
index 0000000..100eccd
--- /dev/null
+++ b/examples/platform_channel_swift/pubspec.yaml
@@ -0,0 +1,14 @@
+name: platform_channel_swift
+
+dependencies:
+  flutter:
+    sdk: flutter
+
+dev_dependencies:
+  flutter_test:
+    sdk: flutter
+  flutter_driver:
+    path: ../../packages/flutter_driver
+
+flutter:
+  uses-material-design: true
diff --git a/examples/platform_channel_swift/test_driver/button_tap.dart b/examples/platform_channel_swift/test_driver/button_tap.dart
new file mode 100644
index 0000000..2c9db77
--- /dev/null
+++ b/examples/platform_channel_swift/test_driver/button_tap.dart
@@ -0,0 +1,11 @@
+// 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 'package:flutter_driver/driver_extension.dart';
+import 'package:platform_channel_swift/main.dart' as app;
+
+void main() {
+  enableFlutterDriverExtension();
+  app.main();
+}
diff --git a/examples/platform_channel_swift/test_driver/button_tap_test.dart b/examples/platform_channel_swift/test_driver/button_tap_test.dart
new file mode 100644
index 0000000..cf6601e
--- /dev/null
+++ b/examples/platform_channel_swift/test_driver/button_tap_test.dart
@@ -0,0 +1,36 @@
+// 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 'package:flutter_driver/flutter_driver.dart';
+import 'package:test/test.dart';
+
+void main() {
+  group('button tap test', () {
+    FlutterDriver driver;
+
+    setUpAll(() async {
+      driver = await FlutterDriver.connect();
+    });
+
+    tearDownAll(() async {
+      if (driver != null)
+        driver.close();
+    });
+
+    test('tap on the button, verify result', () async {
+        final SerializableFinder batteryLevelLabel = find.byValueKey('Battery level label');
+        expect(batteryLevelLabel, isNotNull);
+
+        final SerializableFinder button = find.text('Get Battery Level');
+        await driver.waitFor(button);
+        await driver.tap(button);
+
+        String batteryLevel;
+        while(batteryLevel == null || batteryLevel.isEmpty) {
+          batteryLevel = await driver.getText(batteryLevelLabel);
+        }
+        expect(batteryLevel, isNotEmpty);
+    });
+  });
+}
\ No newline at end of file