Add Async image loading

Examples/Creating And Combining Views/Complete/Landmarks/CreatingAndCombiningViews.xcodeproj/.xcodesamplecode.plist

@@ -0,0 +1,5 @@
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+<array/>
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Examples/Creating And Combining Views/Complete/Landmarks/CreatingAndCombiningViews.xcodeproj/project.pbxproj

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Examples/Creating And Combining Views/Complete/Landmarks/CreatingAndCombiningViews.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>BuildSystemType</key>
+	<string>Latest</string>
+</dict>
+</plist>

Examples/Creating And Combining Views/Complete/Landmarks/Landmarks/AppDelegate.swift

@@ -0,0 +1,36 @@
+/*
+See LICENSE folder for this sample’s licensing information.
+
+Abstract:
+The application delegate.
+*/
+
+import UIKit
+
+@UIApplicationMain
+class AppDelegate: UIResponder, UIApplicationDelegate {
+
+    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
+        // Override point for customization after application launch.
+        return true
+    }
+
+    func applicationWillTerminate(_ application: UIApplication) {
+        // Called when the application is about to terminate. Save data if appropriate. See also applicationDidEnterBackground:.
+    }
+
+    // MARK: UISceneSession Lifecycle
+    func application(_ application: UIApplication, configurationForConnecting connectingSceneSession: UISceneSession, options: UIScene.ConnectionOptions) -> UISceneConfiguration {
+        // Called when a new scene session is being created.
+        // Use this method to select a configuration to create the new scene with.
+        return UISceneConfiguration(name: "Default Configuration", sessionRole: connectingSceneSession.role)
+    }
+
+    func application(_ application: UIApplication, didDiscardSceneSessions sceneSessions: Set<UISceneSession>) {
+        // Called when the user discards a scene session.
+        // If any sessions were discarded while the application was not running, this will be called shortly after application:didFinishLaunchingWithOptions.
+        // Use this method to release any resources that were specific to the discarded scenes, as they will not return.
+    }
+
+}
+

Examples/Creating And Combining Views/Complete/Landmarks/Landmarks/Assets.xcassets/AppIcon.appiconset/Contents.json

@@ -0,0 +1,113 @@
+{
+  "images" : [
+    {
+      "size" : "20x20",
+      "idiom" : "iphone",
+      "filename" : "landmark_app_icon_40x40.png",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "20x20",
+      "scale" : "3x"
+    },
+    {
+      "size" : "29x29",
+      "idiom" : "iphone",
+      "filename" : "landmark_app_icon_58x58.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "29x29",
+      "idiom" : "iphone",
+      "filename" : "landmark_app_icon_87x87.png",
+      "scale" : "3x"
+    },
+    {
+      "size" : "40x40",
+      "idiom" : "iphone",
+      "filename" : "landmark_app_icon_80x80.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "40x40",
+      "idiom" : "iphone",
+      "filename" : "landmark_app_icon_120x120.png",
+      "scale" : "3x"
+    },
+    {
+      "size" : "60x60",
+      "idiom" : "iphone",
+      "filename" : "landmark_app_icon_120x120-1.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "60x60",
+      "idiom" : "iphone",
+      "filename" : "landmark_app_icon_180x180.png",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "20x20",
+      "scale" : "1x"
+    },
+    {
+      "size" : "20x20",
+      "idiom" : "ipad",
+      "filename" : "landmark_app_icon_40x40-1.png",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "29x29",
+      "scale" : "1x"
+    },
+    {
+      "size" : "29x29",
+      "idiom" : "ipad",
+      "filename" : "landmark_app_icon_58x58-1.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "40x40",
+      "idiom" : "ipad",
+      "filename" : "landmark_app_icon_40x40-2.png",
+      "scale" : "1x"
+    },
+    {
+      "size" : "40x40",
+      "idiom" : "ipad",
+      "filename" : "landmark_app_icon_80x80-1.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "76x76",
+      "idiom" : "ipad",
+      "filename" : "landmark_app_icon_76x76.png",
+      "scale" : "1x"
+    },
+    {
+      "size" : "76x76",
+      "idiom" : "ipad",
+      "filename" : "landmark_app_icon_152x152.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "83.5x83.5",
+      "idiom" : "ipad",
+      "filename" : "landmark_app_icon_167x167.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "1024x1024",
+      "idiom" : "ios-marketing",
+      "filename" : "landmark_app_icon_1024x1024.png",
+      "scale" : "1x"
+    }
+  ],
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}

Examples/Creating And Combining Views/Complete/Landmarks/Landmarks/Assets.xcassets/Contents.json

@@ -0,0 +1,6 @@
+{
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}

Examples/Creating And Combining Views/Complete/Landmarks/Landmarks/Assets.xcassets/turtlerock.imageset/Contents.json

@@ -0,0 +1,21 @@
+{
+  "images" : [
+    {
+      "idiom" : "universal",
+      "filename" : "turtlerock.jpg",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "universal",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "universal",
+      "scale" : "3x"
+    }
+  ],
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}

Examples/Creating And Combining Views/Complete/Landmarks/Landmarks/Base.lproj/LaunchScreen.storyboard

@@ -0,0 +1,25 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="13122.16" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" launchScreen="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="01J-lp-oVM">
+    <dependencies>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="13104.12"/>
+        <capability name="Safe area layout guides" minToolsVersion="9.0"/>
+        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
+    </dependencies>
+    <scenes>
+        <!--View Controller-->
+        <scene sceneID="EHf-IW-A2E">
+            <objects>
+                <viewController id="01J-lp-oVM" sceneMemberID="viewController">
+                    <view key="view" contentMode="scaleToFill" id="Ze5-6b-2t3">
+                        <rect key="frame" x="0.0" y="0.0" width="375" height="667"/>
+                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
+                        <color key="backgroundColor" xcode11CocoaTouchSystemColor="systemBackgroundColor" cocoaTouchSystemColor="whiteColor"/>
+                        <viewLayoutGuide key="safeArea" id="6Tk-OE-BBY"/>
+                    </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/Creating And Combining Views/Complete/Landmarks/Landmarks/ContentView.swift

@@ -0,0 +1,45 @@
+/*
+See LICENSE folder for this sample’s licensing information.
+
+Abstract:
+A view showing the details for a landmark.
+*/
+
+import SwiftUI
+
+struct ContentView: View {
+    var body: some View {
+        VStack {
+            MapView()
+                .edgesIgnoringSafeArea(.top)
+                .frame(height: 300)
+
+            CircleImage()
+                .offset(x: 0, y: -130)
+                .padding(.bottom, -130)
+
+            VStack(alignment: .leading) {
+                Text("Turtle Rock")
+                    .font(.title)
+                HStack(alignment: .top) {
+                    Text("Joshua Tree National Park")
+                        .font(.subheadline)
+                    Spacer()
+                    Text("California")
+                        .font(.subheadline)
+                }
+            }
+            .padding()
+
+            Spacer()
+        }
+    }
+}
+
+#if DEBUG
+struct ContentView_Previews: PreviewProvider {
+    static var previews: some View {
+        ContentView()
+    }
+}
+#endif

Examples/Creating And Combining Views/Complete/Landmarks/Landmarks/Info.plist

@@ -0,0 +1,62 @@
+<?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>$(PRODUCT_BUNDLE_PACKAGE_TYPE)</string>
+	<key>CFBundleShortVersionString</key>
+	<string>1.0</string>
+	<key>CFBundleVersion</key>
+	<string>1</string>
+	<key>LSRequiresIPhoneOS</key>
+	<true/>
+	<key>UIApplicationSceneManifest</key>
+	<dict>
+		<key>UIApplicationSupportsMultipleScenes</key>
+		<false/>
+		<key>UISceneConfigurations</key>
+		<dict>
+			<key>UIWindowSceneSessionRoleApplication</key>
+			<array>
+				<dict>
+					<key>UILaunchStoryboardName</key>
+					<string>LaunchScreen</string>
+					<key>UISceneConfigurationName</key>
+					<string>Default Configuration</string>
+					<key>UISceneDelegateClassName</key>
+					<string>$(PRODUCT_MODULE_NAME).SceneDelegate</string>
+				</dict>
+			</array>
+		</dict>
+	</dict>
+	<key>UILaunchStoryboardName</key>
+	<string>LaunchScreen</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>

Examples/Creating And Combining Views/Complete/Landmarks/Landmarks/Preview Content/Preview Assets.xcassets/Contents.json

@@ -0,0 +1,6 @@
+{
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}

Examples/Creating And Combining Views/Complete/Landmarks/Landmarks/SceneDelegate.swift

@@ -0,0 +1,56 @@
+/*
+See LICENSE folder for this sample’s licensing information.
+
+Abstract:
+The scene delegate.
+*/
+
+import UIKit
+import SwiftUI
+
+class SceneDelegate: UIResponder, UIWindowSceneDelegate {
+
+    var window: UIWindow?
+
+    func scene(_ scene: UIScene, willConnectTo session: UISceneSession, options connectionOptions: UIScene.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 `application:configurationForConnectingSceneSession` instead).
+
+        // Use a UIHostingController as window root view controller
+        let window = UIWindow(frame: UIScreen.main.bounds)
+        window.rootViewController = UIHostingController(rootView: ContentView())
+        self.window = window
+        window.makeKeyAndVisible()
+    }
+
+    func sceneDidDisconnect(_ scene: UIScene) {
+        // 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 `application:didDiscardSceneSessions` instead).
+    }
+
+    func sceneDidBecomeActive(_ scene: UIScene) {
+        // 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.
+    }
+
+    func sceneWillResignActive(_ scene: UIScene) {
+        // 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).
+    }
+
+    func sceneWillEnterForeground(_ scene: UIScene) {
+        // Called as the scene transitions from the background to the foreground.
+        // Use this method to undo the changes made on entering the background.
+    }
+
+    func sceneDidEnterBackground(_ scene: UIScene) {
+        // 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.
+    }
+
+}
+

Examples/Creating And Combining Views/Complete/Landmarks/Landmarks/Supporting Views/CircleImage.swift

@@ -0,0 +1,26 @@
+/*
+See LICENSE folder for this sample’s licensing information.
+
+Abstract:
+A view that clips an image to a circle and adds a stroke and shadow.
+*/
+
+import SwiftUI
+
+struct CircleImage: View {
+    var body: some View {
+        Image("turtlerock")
+            .clipShape(Circle())
+            .overlay(
+                Circle().stroke(Color.white, lineWidth: 4))
+            .shadow(radius: 10)
+    }
+}
+
+#if DEBUG
+struct CircleImage_Previews: PreviewProvider {
+    static var previews: some View {
+        CircleImage()
+    }
+}
+#endif

Examples/Creating And Combining Views/Complete/Landmarks/Landmarks/Supporting Views/MapView.swift

@@ -0,0 +1,31 @@
+/*
+See LICENSE folder for this sample’s licensing information.
+
+Abstract:
+A view that hosts an `MKMapView`.
+*/
+
+import SwiftUI
+import MapKit
+
+struct MapView: UIViewRepresentable {
+    func makeUIView(context: Context) -> MKMapView {
+        MKMapView(frame: .zero)
+    }
+
+    func updateUIView(_ view: MKMapView, context: Context) {
+        let coordinate = CLLocationCoordinate2D(
+            latitude: 34.011_286, longitude: -116.166_868)
+        let span = MKCoordinateSpan(latitudeDelta: 2.0, longitudeDelta: 2.0)
+        let region = MKCoordinateRegion(center: coordinate, span: span)
+        view.setRegion(region, animated: true)
+    }
+}
+
+#if DEBUG
+struct MapView_Previews: PreviewProvider {
+    static var previews: some View {
+        MapView()
+    }
+}
+#endif