Add a Mac Catalyst sample. (#71)

* Copy HelloIOS to HelloMacCatalyst & make it run on Catalyst.
* Update README with Mac Catalyst instructions
* Adds the Catalyst project to vs/net6-samples-ios.sln

Co-authored-by: Jonathan Peppers <jonathan.peppers@microsoft.com>

HelloMacCatalyst/AppDelegate.cs

@@ -0,0 +1,71 @@
+using Foundation;
+using UIKit;
+
+namespace HelloiOS
+{
+    // The UIApplicationDelegate for the application. This class is responsible for launching the
+    // User Interface of the application, as well as listening (and optionally responding) to application events from iOS.
+    [Register("AppDelegate")]
+    public class AppDelegate : UIApplicationDelegate
+    {
+        // class-level declarations
+
+        public override UIWindow Window
+        {
+            get;
+            set;
+        }
+
+        public override bool FinishedLaunching(UIApplication application, NSDictionary launchOptions)
+        {
+            // create a new window instance based on the screen size
+            Window = new UIWindow(UIScreen.MainScreen.Bounds);
+            var vc = new UIViewController ();
+            vc.View.AddSubview (new UILabel (Window.Frame)
+            {
+                BackgroundColor = UIColor.White,
+                TextAlignment = UITextAlignment.Center,
+                Text = "Hello, .NET 6!"
+            });
+            Window.RootViewController = vc;
+
+            // make the window visible
+            Window.MakeKeyAndVisible();
+
+            return true;
+        }
+
+        public override void OnResignActivation(UIApplication application)
+        {
+            // Invoked when the application is about to move from active to inactive state.
+            // This can occur for certain types of temporary interruptions (such as an incoming phone call or SMS message) 
+            // or when the user quits the application and it begins the transition to the background state.
+            // Games should use this method to pause the game.
+        }
+
+        public override void DidEnterBackground(UIApplication application)
+        {
+            // Use this method to release shared resources, save user data, invalidate timers and store the application state.
+            // If your application supports background execution this method is called instead of WillTerminate when the user quits.
+        }
+
+        public override void WillEnterForeground(UIApplication application)
+        {
+            // Called as part of the transition from background to active state.
+            // Here you can undo many of the changes made on entering the background.
+        }
+
+        public override void OnActivated(UIApplication application)
+        {
+            // Restart any tasks that were paused (or not yet started) while the application was inactive. 
+            // If the application was previously in the background, optionally refresh the user interface.
+        }
+
+        public override void WillTerminate(UIApplication application)
+        {
+            // Called when the application is about to terminate. Save data, if needed. See also DidEnterBackground.
+        }
+    }
+}
+
+

HelloMacCatalyst/Assets.xcassets/AppIcon.appiconset/Contents.json

@@ -0,0 +1,117 @@
+{
+  "images": [
+    {
+      "scale": "2x",
+      "size": "20x20",
+      "idiom": "iphone",
+      "filename": "Icon40.png"
+    },
+    {
+      "scale": "3x",
+      "size": "20x20",
+      "idiom": "iphone",
+      "filename": "Icon60.png"
+    },
+    {
+      "scale": "2x",
+      "size": "29x29",
+      "idiom": "iphone",
+      "filename": "Icon58.png"
+    },
+    {
+      "scale": "3x",
+      "size": "29x29",
+      "idiom": "iphone",
+      "filename": "Icon87.png"
+    },
+    {
+      "scale": "2x",
+      "size": "40x40",
+      "idiom": "iphone",
+      "filename": "Icon80.png"
+    },
+    {
+      "scale": "3x",
+      "size": "40x40",
+      "idiom": "iphone",
+      "filename": "Icon120.png"
+    },
+    {
+      "scale": "2x",
+      "size": "60x60",
+      "idiom": "iphone",
+      "filename": "Icon120.png"
+    },
+    {
+      "scale": "3x",
+      "size": "60x60",
+      "idiom": "iphone",
+      "filename": "Icon180.png"
+    },
+    {
+      "scale": "1x",
+      "size": "20x20",
+      "idiom": "ipad",
+      "filename": "Icon20.png"
+    },
+    {
+      "scale": "2x",
+      "size": "20x20",
+      "idiom": "ipad",
+      "filename": "Icon40.png"
+    },
+    {
+      "scale": "1x",
+      "size": "29x29",
+      "idiom": "ipad",
+      "filename": "Icon29.png"
+    },
+    {
+      "scale": "2x",
+      "size": "29x29",
+      "idiom": "ipad",
+      "filename": "Icon58.png"
+    },
+    {
+      "scale": "1x",
+      "size": "40x40",
+      "idiom": "ipad",
+      "filename": "Icon40.png"
+    },
+    {
+      "scale": "2x",
+      "size": "40x40",
+      "idiom": "ipad",
+      "filename": "Icon80.png"
+    },
+    {
+      "scale": "1x",
+      "size": "76x76",
+      "idiom": "ipad",
+      "filename": "Icon76.png"
+    },
+    {
+      "scale": "2x",
+      "size": "76x76",
+      "idiom": "ipad",
+      "filename": "Icon152.png"
+    },
+    {
+      "scale": "2x",
+      "size": "83.5x83.5",
+      "idiom": "ipad",
+      "filename": "Icon167.png"
+    },
+    {
+      "scale": "1x",
+      "size": "1024x1024",
+      "idiom": "ios-marketing",
+      "filename": "Icon1024.png"
+    }
+  ],
+  "properties": {},
+  "info": {
+    "version": 1,
+    "author": "xcode"
+  }
+}

HelloMacCatalyst/Entitlements.plist

@@ -0,0 +1,6 @@
+<?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>
+    </dict>
+</plist>

HelloMacCatalyst/HelloMacCatalyst.csproj

@@ -0,0 +1,7 @@
+<Project Sdk="Microsoft.NET.Sdk">
+  <PropertyGroup>
+    <TargetFramework>net6.0-maccatalyst</TargetFramework>
+    <RuntimeIdentifier>maccatalyst-x64</RuntimeIdentifier>
+    <OutputType>Exe</OutputType>
+  </PropertyGroup>
+</Project>

HelloMacCatalyst/Info.plist

@@ -0,0 +1,30 @@
+<?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>CFBundleDisplayName</key>
+    <string>Hello Mac Catalyst</string>
+    <key>CFBundleIdentifier</key>
+    <string>com.microsoft.net6.hellomaccatalyst</string>
+    <key>CFBundleShortVersionString</key>
+    <string>1.0</string>
+    <key>CFBundleVersion</key>
+    <string>1.0</string>
+    <key>LSMinimumSystemVersion</key>
+        <string>10.15.1</string>
+    <key>UIDeviceFamily</key>
+    <array>
+        <integer>2</integer>
+    </array>
+    <key>UILaunchStoryboardName</key>
+    <string>LaunchScreen</string>
+    <key>UISupportedInterfaceOrientations</key>
+    <array>
+        <string>UIInterfaceOrientationPortrait</string>
+        <string>UIInterfaceOrientationLandscapeLeft</string>
+        <string>UIInterfaceOrientationLandscapeRight</string>
+    </array>
+    <key>XSAppIconAssets</key>
+    <string>Assets.xcassets/AppIcon.appiconset</string>
+</dict>
+</plist>

HelloMacCatalyst/LaunchScreen.storyboard

@@ -0,0 +1,26 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="13771" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" colorMatched="YES" initialViewController="222" launchScreen="YES">
+    <dependencies>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="13772"/>
+        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
+    </dependencies>
+    <scenes>
+        <scene sceneID="221">
+            <objects>
+                <viewController id="222" sceneMemberID="viewController">
+                    <layoutGuides>
+                        <viewControllerLayoutGuide type="top" id="219"/>
+                        <viewControllerLayoutGuide type="bottom" id="220"/>
+                    </layoutGuides>
+                    <view key="view" contentMode="scaleToFill" id="223">
+                        <rect key="frame" x="0.0" y="0.0" width="414" height="736"/>
+                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
+                        <color key="backgroundColor" white="1" alpha="1" colorSpace="calibratedWhite"/>
+                    </view>
+                </viewController>
+                <placeholder placeholderIdentifier="IBFirstResponder" id="224" userLabel="First Responder" sceneMemberID="firstResponder"/>
+            </objects>
+            <point key="canvasLocation" x="-200" y="-388"/>
+        </scene>
+    </scenes>
+</document>

HelloMacCatalyst/Main.cs

@@ -0,0 +1,15 @@
+using UIKit;
+
+namespace HelloiOS
+{
+    public class Application
+    {
+        // This is the main entry point of the application.
+        static void Main(string[] args)
+        {
+            // if you want to use a different Application Delegate class from "AppDelegate"
+            // you can specify it here.
+            UIApplication.Main(args, null, "AppDelegate");
+        }
+    }
+}

HelloMacCatalyst/Resources/LaunchScreen.xib

@@ -0,0 +1,43 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.XIB" version="3.0" toolsVersion="6214" systemVersion="14A314h" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" launchScreen="YES" useTraitCollections="YES">
+    <dependencies>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="6207" />
+        <capability name="Constraints with non-1.0 multipliers" minToolsVersion="5.1" />
+    </dependencies>
+    <objects>
+        <placeholder placeholderIdentifier="IBFilesOwner" id="-1" userLabel="File's Owner" />
+        <placeholder placeholderIdentifier="IBFirstResponder" id="-2" customClass="UIResponder" />
+        <view contentMode="scaleToFill" id="iN0-l3-epB">
+            <rect key="frame" x="0.0" y="0.0" width="480" height="480" />
+            <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES" />
+            <subviews>
+                <label opaque="NO" clipsSubviews="YES" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" text="  Copyright (c) 2017 " textAlignment="center" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines"
+                    minimumFontSize="9" translatesAutoresizingMaskIntoConstraints="NO" id="8ie-xW-0ye">
+                    <rect key="frame" x="20" y="439" width="441" height="21" />
+                    <fontDescription key="fontDescription" type="system" pointSize="17" />
+                    <color key="textColor" cocoaTouchSystemColor="darkTextColor" />
+                    <nil key="highlightedColor" />
+                </label>
+                <label opaque="NO" clipsSubviews="YES" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" text="HelloiOS" textAlignment="center" lineBreakMode="middleTruncation" baselineAdjustment="alignBaselines"
+                    minimumFontSize="18" translatesAutoresizingMaskIntoConstraints="NO" id="kId-c2-rCX">
+                    <rect key="frame" x="20" y="140" width="441" height="43" />
+                    <fontDescription key="fontDescription" type="boldSystem" pointSize="36" />
+                    <color key="textColor" cocoaTouchSystemColor="darkTextColor" />
+                    <nil key="highlightedColor" />
+                </label>
+            </subviews>
+            <color key="backgroundColor" white="1" alpha="1" colorSpace="custom" customColorSpace="calibratedWhite" />
+            <constraints>
+                <constraint firstItem="kId-c2-rCX" firstAttribute="centerY" secondItem="iN0-l3-epB" secondAttribute="bottom" multiplier="1/3" constant="1" id="5cJ-9S-tgC" />
+                <constraint firstAttribute="centerX" secondItem="kId-c2-rCX" secondAttribute="centerX" id="Koa-jz-hwk" />
+                <constraint firstAttribute="bottom" secondItem="8ie-xW-0ye" secondAttribute="bottom" constant="20" id="Kzo-t9-V3l" />
+                <constraint firstItem="8ie-xW-0ye" firstAttribute="leading" secondItem="iN0-l3-epB" secondAttribute="leading" constant="20" symbolic="YES" id="MfP-vx-nX0" />
+                <constraint firstAttribute="centerX" secondItem="8ie-xW-0ye" secondAttribute="centerX" id="ZEH-qu-HZ9" />
+                <constraint firstItem="kId-c2-rCX" firstAttribute="leading" secondItem="iN0-l3-epB" secondAttribute="leading" constant="20" symbolic="YES" id="fvb-Df-36g" />
+            </constraints>
+            <nil key="simulatedStatusBarMetrics" />
+            <freeformSimulatedSizeMetrics key="simulatedDestinationMetrics" />
+            <point key="canvasLocation" x="548" y="455" />
+        </view>
+    </objects>
+</document>

HelloMacCatalyst/SceneDelegate.cs

@@ -0,0 +1,58 @@
+using System;
+using Foundation;
+using UIKit;
+
+namespace NewSingleViewTemplate {
+	[Register ("SceneDelegate")]
+	public class SceneDelegate : UIResponder, IUIWindowSceneDelegate {
+
+		[Export ("window")]
+		public UIWindow Window { get; set; }
+
+		[Export ("scene:willConnectToSession:options:")]
+		public void WillConnect (UIScene scene, UISceneSession session, UISceneConnectionOptions connectionOptions)
+		{
+			// Use this method to optionally configure and attach the UIWindow `window` to the provided UIWindowScene `scene`.
+			// If using a storyboard, the `window` property will automatically be initialized and attached to the scene.
+			// This delegate does not imply the connecting scene or session are new (see UIApplicationDelegate `GetConfiguration` instead).
+		}
+
+		[Export ("sceneDidDisconnect:")]
+		public void DidDisconnect (UIScene scene)
+		{
+			// Called as the scene is being released by the system.
+			// This occurs shortly after the scene enters the background, or when its session is discarded.
+			// Release any resources associated with this scene that can be re-created the next time the scene connects.
+			// The scene may re-connect later, as its session was not neccessarily discarded (see UIApplicationDelegate `DidDiscardSceneSessions` instead).
+		}
+
+		[Export ("sceneDidBecomeActive:")]
+		public void DidBecomeActive (UIScene scene)
+		{
+			// Called when the scene has moved from an inactive state to an active state.
+			// Use this method to restart any tasks that were paused (or not yet started) when the scene was inactive.
+		}
+
+		[Export ("sceneWillResignActive:")]
+		public void WillResignActive (UIScene scene)
+		{
+			// Called when the scene will move from an active state to an inactive state.
+			// This may occur due to temporary interruptions (ex. an incoming phone call).
+		}
+
+		[Export ("sceneWillEnterForeground:")]
+		public void WillEnterForeground (UIScene scene)
+		{
+			// Called as the scene transitions from the background to the foreground.
+			// Use this method to undo the changes made on entering the background.
+		}
+
+		[Export ("sceneDidEnterBackground:")]
+		public void DidEnterBackground (UIScene scene)
+		{
+			// Called as the scene transitions from the foreground to the background.
+			// Use this method to save data, release shared resources, and store enough scene-specific state information
+			// to restore the scene back to its current state.
+		}
+	}
+}