Upload photos from the library as JPEG instead of HEIC (#767)

* Send photos from the library as jpeg instead of heic

* Update CHANGELOG.md

* Update CHANGELOG.md

* Improve the name of the function

Author: nuno-vieira

CHANGELOG.md

@@ -4,6 +4,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 # Upcoming
 
 ### 🔄 Changed
+- Uploading a HEIC photo from the library is now converted to JPEG for better compatibility [#767](https://github.com/GetStream/stream-chat-swiftui/pull/767)
 
 # [4.73.0](https://github.com/GetStream/stream-chat-swiftui/releases/tag/4.73.0)
 _February 28, 2025_

Sources/StreamChatSwiftUI/ChatChannel/Composer/ImagePickerView.swift

@@ -55,7 +55,7 @@ final class ImagePickerCoordinator: NSObject, UIImagePickerControllerDelegate, U
         didFinishPickingMediaWithInfo info: [UIImagePickerController.InfoKey: Any]
     ) {
         if let uiImage = info[.originalImage] as? UIImage,
-           let imageURL = try? uiImage.temporaryLocalFileUrl() {
+           let imageURL = try? uiImage.saveAsJpgToTemporaryUrl() {
             let addedImage = AddedAsset(
                 image: uiImage,
                 id: UUID().uuidString,

Sources/StreamChatSwiftUI/ChatChannel/Composer/PhotoAttachmentPickerView.swift

@@ -102,7 +102,7 @@ public struct PhotoAttachmentCell: View {
                             .allowsHitTesting(true)
                             .onTapGesture {
                                 withAnimation {
-                                    if let assetURL = assetURL {
+                                    if let assetURL = assetJpgURL() {
                                         onImageTap(
                                             AddedAsset(
                                                 image: image,
@@ -193,4 +193,13 @@ public struct PhotoAttachmentCell: View {
             }
         }
     }
+
+    /// The original photo is usually in HEIC format.
+    /// This makes sure that the photo is converted to JPG.
+    /// This way it is more compatible with other platforms.
+    private func assetJpgURL() -> URL? {
+        guard let assetURL = assetURL else { return nil }
+        guard let assetData = try? Data(contentsOf: assetURL) else { return nil }
+        return try? UIImage(data: assetData)?.saveAsJpgToTemporaryUrl()
+    }
 }

Sources/StreamChatSwiftUI/Utils/Common/UIImage+Extensions.swift

@@ -42,7 +42,7 @@ extension UIImage {
 }
 
 extension UIImage {
-    func temporaryLocalFileUrl() throws -> URL? {
+    func saveAsJpgToTemporaryUrl() throws -> URL? {
         guard let imageData = jpegData(compressionQuality: 1.0) else { return nil }
         let imageName = "\(UUID().uuidString).jpg"
         let documentDirectory = NSTemporaryDirectory()