Add SwiftUI demo scene for progressive JPEG

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

@@ -52,6 +52,7 @@ struct MainView: View {
                 NavigationLink(destination: AnimatedImageDemo()) { Text("Animated Image") }
                 NavigationLink(destination: GeometryReaderDemo()) { Text("Geometry Reader") }
                 NavigationLink(destination: TransitionViewDemo()) { Text("Transition") }
+                NavigationLink(destination: ProgressiveJPEGDemo()) { Text("Progressive JPEG") }
             }
             
             Section(header: Text("Regression Cases")) {

Demo/Demo/Kingfisher-Demo/SwiftUIViews/ProgressiveJPEGDemo.swift

@@ -0,0 +1,56 @@
+//
+//  ProgressiveJPEGDemo.swift
+//  Kingfisher
+//
+//  Created by onevcat on 2025/03/03.
+//
+//  Copyright (c) 2025 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 Kingfisher
+import SwiftUI
+
+@available(iOS 14.0, *)
+struct ProgressiveJPEGDemo: View {
+    
+    @State private var totalSize: Int64?
+    @State private var receivedSize: Int64?
+    
+    var body: some View {
+        KFImage(ImageLoader.progressiveImageURL)
+            .progressiveJPEG()
+            .onProgress({ receivedSize, totalSize in
+                self.totalSize = totalSize
+                self.receivedSize = receivedSize
+            })
+            .resizable()
+            .frame(width: 300, height: 300)
+        if let totalSize = totalSize, let receivedSize = receivedSize {
+            Text("Received: \(receivedSize) / \(totalSize)")
+        }
+    }
+}
+
+@available(iOS 14.0, *)
+struct ProgressiveJPEGDemo_Previews : PreviewProvider {
+    static var previews: some View {
+        ProgressiveJPEGDemo()
+    }
+}

Demo/Kingfisher-Demo.xcodeproj/project.pbxproj

@@ -68,6 +68,7 @@
 		D1CE1BD321A1B45A00419000 /* ImageLoader.swift in Sources */ = {isa = PBXBuildFile; fileRef = D1CE1BD221A1B45A00419000 /* ImageLoader.swift */; };
 		D1CE1BD421A1B45A00419000 /* ImageLoader.swift in Sources */ = {isa = PBXBuildFile; fileRef = D1CE1BD221A1B45A00419000 /* ImageLoader.swift */; };
 		D1E4CF5421BACBA6004D029D /* ImageDataProviderCollectionViewController.swift in Sources */ = {isa = PBXBuildFile; fileRef = D1E4CF5321BACBA6004D029D /* ImageDataProviderCollectionViewController.swift */; };
+		D1E612E22D75F9AC00DACD51 /* ProgressiveJPEGDemo.swift in Sources */ = {isa = PBXBuildFile; fileRef = D1E612E12D75F99C00DACD51 /* ProgressiveJPEGDemo.swift */; };
 		D1EDF7422C9F01270017FFA5 /* Issue2295View.swift in Sources */ = {isa = PBXBuildFile; fileRef = D1EDF7412C9F01200017FFA5 /* Issue2295View.swift */; };
 		D1F06F3321AA4292000B1C38 /* DetailImageViewController.swift in Sources */ = {isa = PBXBuildFile; fileRef = D1F06F3221AA4292000B1C38 /* DetailImageViewController.swift */; };
 		D1F06F3521AA5938000B1C38 /* ImageCollectionViewCell.swift in Sources */ = {isa = PBXBuildFile; fileRef = D12E0C911C47F91800AC98AD /* ImageCollectionViewCell.swift */; };
@@ -221,6 +222,7 @@
 		D1CE1BCF21A1AFA300419000 /* TransitionViewController.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = TransitionViewController.swift; sourceTree = "<group>"; };
 		D1CE1BD221A1B45A00419000 /* ImageLoader.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ImageLoader.swift; sourceTree = "<group>"; };
 		D1E4CF5321BACBA6004D029D /* ImageDataProviderCollectionViewController.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ImageDataProviderCollectionViewController.swift; sourceTree = "<group>"; };
+		D1E612E12D75F99C00DACD51 /* ProgressiveJPEGDemo.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ProgressiveJPEGDemo.swift; sourceTree = "<group>"; };
 		D1ED2D0B1AD2CFA600CFC3EB /* Kingfisher-Demo.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = "Kingfisher-Demo.app"; sourceTree = BUILT_PRODUCTS_DIR; };
 		D1EDF7412C9F01200017FFA5 /* Issue2295View.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = Issue2295View.swift; sourceTree = "<group>"; };
 		D1F06F3221AA4292000B1C38 /* DetailImageViewController.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = DetailImageViewController.swift; sourceTree = "<group>"; };
@@ -455,6 +457,7 @@
 				D198F42125EDC4B900C53E0D /* GridDemo.swift */,
 				4B779C8426743C2800FF9C1E /* GeometryReaderDemo.swift */,
 				D1F78A632589F17200930759 /* SingleViewDemo.swift */,
+				D1E612E12D75F99C00DACD51 /* ProgressiveJPEGDemo.swift */,
 				4B120CA626B91BB70060B092 /* TransitionViewDemo.swift */,
 				D198F41D25EDC11500C53E0D /* LazyVStackDemo.swift */,
 				D198F41F25EDC34000C53E0D /* SizingAnimationDemo.swift */,
@@ -721,6 +724,7 @@
 				072922432638639D0089E810 /* AnimatedImageDemo.swift in Sources */,
 				4B6E1B6D28DB4E8C0023B54B /* Issue1998View.swift in Sources */,
 				D1A1CCA721A18A3200263AD8 /* UIViewController+KingfisherOperation.swift in Sources */,
+				D1E612E22D75F9AC00DACD51 /* ProgressiveJPEGDemo.swift in Sources */,
 				4B92FE5625FF906B00473088 /* AutoSizingTableViewController.swift in Sources */,
 				D1F78A642589F17200930759 /* ListDemo.swift in Sources */,
 				D198F41E25EDC11500C53E0D /* LazyVStackDemo.swift in Sources */,