Add a Geometry reader demo

Demo/Demo/Kingfisher-Demo/SwiftUIViews/GeometryReaderDemo.swift

@@ -0,0 +1,51 @@
+//
+//  GeometryReaderDemo.swift
+//  Kingfisher
+//
+//  Created by JP20028 on 2021/06/12.
+//
+//  Copyright (c) 2021 Wei Wang <onevcat@gmail.com>
+//
+//  Permission is hereby granted, free of charge, to any person obtaining a copy
+//  of this software and associated documentation files (the "Software"), to deal
+//  in the Software without restriction, including without limitation the rights
+//  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+//  copies of the Software, and to permit persons to whom the Software is
+//  furnished to do so, subject to the following conditions:
+//
+//  The above copyright notice and this permission notice shall be included in
+//  all copies or substantial portions of the Software.
+//
+//  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+//  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+//  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+//  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+//  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+//  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+//  THE SOFTWARE.
+
+import SwiftUI
+import Kingfisher
+
+@available(iOS 14.0, *)
+struct GeometryReaderDemo: View {
+    var body: some View {
+        GeometryReader { geo in
+            KFImage(
+                ImageLoader.sampleImageURLs.first
+            )
+                .placeholder { ProgressView() }
+                .forceRefresh()
+                .resizable()
+                .scaledToFit()
+                .frame(width: geo.size.width)
+        }
+    }
+}
+
+@available(iOS 14.0, *)
+struct GeometryReaderDemo_Previews: PreviewProvider {
+    static var previews: some View {
+        GeometryReaderDemo()
+    }
+}

Demo/Demo/Kingfisher-Demo/SwiftUIViews/MainView.swift

@@ -46,6 +46,7 @@ struct MainView: View {
             NavigationLink(destination: LazyVStackDemo()) { Text("Stack") }
             NavigationLink(destination: GridDemo()) { Text("Grid") }
             NavigationLink(destination: AnimatedImageDemo()) { Text("Animated Image") }
+            NavigationLink(destination: GeometryReaderDemo()) { Text("Geometry Reader") }
         }.navigationBarTitle(Text("SwiftUI Sample"))
     }
 }

Demo/Kingfisher-Demo.xcodeproj/project.pbxproj

@@ -17,6 +17,7 @@
 		4B4307A51D87E6A700ED2DA9 /* loader.gif in Resources */ = {isa = PBXBuildFile; fileRef = 4B7742461D87E42E0077024E /* loader.gif */; };
 		4B7742471D87E42E0077024E /* loader.gif in Resources */ = {isa = PBXBuildFile; fileRef = 4B7742461D87E42E0077024E /* loader.gif */; };
 		4B7742481D87E42E0077024E /* loader.gif in Resources */ = {isa = PBXBuildFile; fileRef = 4B7742461D87E42E0077024E /* loader.gif */; };
+		4B779C8526743C2800FF9C1E /* GeometryReaderDemo.swift in Sources */ = {isa = PBXBuildFile; fileRef = 4B779C8426743C2800FF9C1E /* GeometryReaderDemo.swift */; };
 		4B92FE5625FF906B00473088 /* AutoSizingTableViewController.swift in Sources */ = {isa = PBXBuildFile; fileRef = 4B92FE5525FF906B00473088 /* AutoSizingTableViewController.swift */; };
 		4BCCF33D1D5B02F8003387C2 /* AppDelegate.swift in Sources */ = {isa = PBXBuildFile; fileRef = 4BCCF3361D5B02F8003387C2 /* AppDelegate.swift */; };
 		4BCCF33E1D5B02F8003387C2 /* Assets.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = 4BCCF3371D5B02F8003387C2 /* Assets.xcassets */; };
@@ -158,6 +159,7 @@
 		4B1C7A3C21A256E300CE9D31 /* InfinityCollectionViewController.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = InfinityCollectionViewController.swift; sourceTree = "<group>"; };
 		4B2944551C3D03880088C3E7 /* Kingfisher-macOS-Demo.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = "Kingfisher-macOS-Demo.app"; sourceTree = BUILT_PRODUCTS_DIR; };
 		4B7742461D87E42E0077024E /* loader.gif */ = {isa = PBXFileReference; lastKnownFileType = image.gif; path = loader.gif; sourceTree = "<group>"; };
+		4B779C8426743C2800FF9C1E /* GeometryReaderDemo.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = GeometryReaderDemo.swift; sourceTree = "<group>"; };
 		4B92FE5525FF906B00473088 /* AutoSizingTableViewController.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = AutoSizingTableViewController.swift; sourceTree = "<group>"; };
 		4BCCF3361D5B02F8003387C2 /* AppDelegate.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = AppDelegate.swift; sourceTree = "<group>"; };
 		4BCCF3371D5B02F8003387C2 /* Assets.xcassets */ = {isa = PBXFileReference; lastKnownFileType = folder.assetcatalog; path = Assets.xcassets; sourceTree = "<group>"; };
@@ -413,6 +415,7 @@
 				D1F78A622589F17200930759 /* MainView.swift */,
 				D1F78A612589F17200930759 /* ListDemo.swift */,
 				D198F42125EDC4B900C53E0D /* GridDemo.swift */,
+				4B779C8426743C2800FF9C1E /* GeometryReaderDemo.swift */,
 				D1F78A632589F17200930759 /* SingleViewDemo.swift */,
 				D198F41D25EDC11500C53E0D /* LazyVStackDemo.swift */,
 				D198F41F25EDC34000C53E0D /* SizingAnimationDemo.swift */,
@@ -680,6 +683,7 @@
 				D1E4CF5421BACBA6004D029D /* ImageDataProviderCollectionViewController.swift in Sources */,
 				D1FAB06F21A853E600908910 /* HighResolutionCollectionViewController.swift in Sources */,
 				D1F78A652589F17200930759 /* MainView.swift in Sources */,
+				4B779C8526743C2800FF9C1E /* GeometryReaderDemo.swift in Sources */,
 				D1F78A5F2589F0AA00930759 /* SwiftUIViewController.swift in Sources */,
 				D12E0C951C47F91800AC98AD /* AppDelegate.swift in Sources */,
 				D1F06F3321AA4292000B1C38 /* DetailImageViewController.swift in Sources */,