Only use CGImage based when the EXIF orientation is not equal to Up. I think SwfitUI will fix this issue in the future and we'd better use UIImage as much as possible

Author: dreampiggy

Example/SDWebImageSwiftUIDemo/ContentView.swift

@@ -81,7 +81,7 @@ struct ContentView: View {
     "https://nr-platform.s3.amazonaws.com/uploads/platform/published_extension/branding_icon/275/AmazonS3.png",
     "https://raw.githubusercontent.com/ibireme/YYImage/master/Demo/YYImageDemo/mew_baseline.jpg",
     "https://via.placeholder.com/200x200.jpg",
-    "https://dv6mh24acw2xi.cloudfront.net/public/moments/gabbr/tmpImg9143171451882065582.jpeg",
+    "https://raw.githubusercontent.com/recurser/exif-orientation-examples/master/Landscape_2.jpg",
     "https://dev.w3.org/SVG/tools/svgweb/samples/svg-files/w3c.svg",
     "https://dev.w3.org/SVG/tools/svgweb/samples/svg-files/wikimedia.svg",
     "https://raw.githubusercontent.com/icons8/flat-color-icons/master/pdf/stack_of_photos.pdf",

SDWebImageSwiftUI.xcodeproj/project.pbxproj

@@ -1379,7 +1379,7 @@
 			repositoryURL = "https://github.com/nalexn/ViewInspector.git";
 			requirement = {
 				kind = upToNextMajorVersion;
-				minimumVersion = 0.3.5;
+				minimumVersion = 0.3.11;
 			};
 		};
 /* End XCRemoteSwiftPackageReference section */

SDWebImageSwiftUI.xcodeproj/project.xcworkspace/xcshareddata/swiftpm/Package.resolved

@@ -6,8 +6,8 @@
         "repositoryURL": "https://github.com/nalexn/ViewInspector.git",
         "state": {
           "branch": null,
-          "revision": "ec943ed718cd293b95f17a2b81e8917d6ed70752",
-          "version": "0.3.8"
+          "revision": "7d55eb940242512aad2bf28db354d09d5de43893",
+          "version": "0.3.11"
         }
       }
     ]

SDWebImageSwiftUI/Classes/WebImage.swift

@@ -124,7 +124,6 @@ public struct WebImage : View {
 
     /// Configure the platform image into the SwiftUI rendering image
     func configure(image: PlatformImage) -> some View {
-        var image = image
         // Actual rendering SwiftUI image
         let result: Image
         // NSImage works well with SwiftUI, include Animated and Vector Image
@@ -133,6 +132,8 @@ public struct WebImage : View {
         #else
         // Fix the SwiftUI.Image rendering issue when use UIImage based, the `.aspectRatio` does not works. SwiftUI's Bug :)
         // See issue #101
+        var image = image
+        var cgImage: CGImage?
         // Case 1: UIAnimatedImage, grab poster image
         if image.sd_isAnimated {
             // check images property
@@ -147,14 +148,21 @@ public struct WebImage : View {
                 // draw vector into bitmap with the screen scale (behavior like AppKit)
                 UIGraphicsBeginImageContextWithOptions(image.size, false, UIScreen.main.scale)
                 image.draw(at: .zero)
-                image = UIGraphicsGetImageFromCurrentImageContext() ?? .empty
+                cgImage = UIGraphicsGetImageFromCurrentImageContext()?.cgImage
                 UIGraphicsEndImageContext()
+            } else {
+                cgImage = image.cgImage
             }
         }
+        // Case 3: Image with EXIF orientation
+        if image.imageOrientation != .up {
+            cgImage = image.cgImage
+        }
         // If we have CGImage, use CGImage based API, else use UIImage based API
-        if let cgImage = image.cgImage {
+        if let cgImage = cgImage {
+            let scale = image.scale
             let orientation = image.imageOrientation.toSwiftUI
-            result = Image(decorative: cgImage, scale: image.scale, orientation: orientation)
+            result = Image(decorative: cgImage, scale: scale, orientation: orientation)
         } else {
             result = Image(uiImage: image)
         }

Tests/WebImageTests.swift

@@ -133,4 +133,23 @@ class WebImageTests: XCTestCase {
         ViewHosting.expel()
     }
 
+    func testWebImageEXIFImage() throws {
+        let expectation = self.expectation(description: "WebImage EXIF image url")
+        // EXIF 2, Up Mirrored
+        let imageUrl = URL(string: "https://raw.githubusercontent.com/recurser/exif-orientation-examples/master/Landscape_2.jpg")
+        let imageView = WebImage(url: imageUrl)
+        let introspectView = imageView.onSuccess { image, cacheType in
+            let displayImage = try? imageView.inspect().group().image(0).cgImage()
+            let orientation = try! imageView.inspect().group().image(0).orientation()
+            XCTAssertNotNil(displayImage)
+            XCTAssertEqual(orientation, .upMirrored)
+            expectation.fulfill()
+        }.onFailure { error in
+            XCTFail(error.localizedDescription)
+        }
+        _ = try introspectView.inspect()
+        ViewHosting.host(view: introspectView)
+        self.waitForExpectations(timeout: 5, handler: nil)
+        ViewHosting.expel()
+    }
 }