Add silent photo capture support with shutterPhotoSound option in iOS

ios/ReactNativeCameraKit/CKCameraManager.m

@@ -41,5 +41,6 @@ @interface RCT_EXTERN_MODULE(CKCameraManager, RCTViewManager)
 RCT_EXPORT_VIEW_PROPERTY(zoomMode, CKZoomMode)
 RCT_EXPORT_VIEW_PROPERTY(zoom, NSNumber)
 RCT_EXPORT_VIEW_PROPERTY(maxZoom, NSNumber)
+RCT_EXPORT_VIEW_PROPERTY(shutterPhotoSound, BOOL)
 
 @end

ios/ReactNativeCameraKit/CKCameraViewComponentView.mm

@@ -243,8 +243,12 @@ - (void)updateProps:(const Props::Shared &)props oldProps:(const Props::Shared &
         _view.barcodeFrameSize = @{@"width": @(barcodeWidth), @"height": @(barcodeHeight)};
         [changedProps addObject:@"barcodeFrameSize"];
     }
-
-
+    bool shutterPhotoSound = newProps.shutterPhotoSound;
+    if (shutterPhotoSound != _view.shutterPhotoSound) {
+        _view.shutterPhotoSound = shutterPhotoSound;
+        [changedProps addObject:@"shutterPhotoSound"];
+    }
+
     [super updateProps:props oldProps:oldProps];
     [_view didSetProps:changedProps];
 }

ios/ReactNativeCameraKit/CameraProtocol.swift

@@ -7,6 +7,7 @@ import AVFoundation
 
 protocol CameraProtocol: AnyObject, FocusInterfaceViewDelegate {
     var previewView: UIView { get }
+    var imageBuffer: CMSampleBuffer? { get }
 
     func setup(cameraType: CameraType, supportedBarcodeType: [CodeFormat])
     func cameraRemovedFromSuperview()
@@ -21,6 +22,7 @@ protocol CameraProtocol: AnyObject, FocusInterfaceViewDelegate {
     func update(resizeMode: ResizeMode)
     func update(maxPhotoQualityPrioritization: MaxPhotoQualityPrioritization?)
     func update(barcodeFrameSize: CGSize?)
+    func update(shutterPhotoSound: Bool)
 
     func zoomPinchStart()
     func zoomPinchChange(pinchScale: CGFloat)
@@ -31,7 +33,8 @@ protocol CameraProtocol: AnyObject, FocusInterfaceViewDelegate {
 
     func update(scannerFrameSize: CGRect?)
 
-    func capturePicture(onWillCapture: @escaping () -> Void,
+    func capturePicture(captureOptions: CaptureOptions,
+                        onWillCapture: @escaping () -> Void,
                         onSuccess: @escaping (_ imageData: Data, _ thumbnailData: Data?, _ dimensions: CMVideoDimensions) -> Void,
                         onError: @escaping (_ message: String) -> Void)
 }

ios/ReactNativeCameraKit/CameraView.swift

@@ -38,6 +38,7 @@ public class CameraView: UIView {
     @objc public var flashMode: FlashMode = .auto
     @objc public var torchMode: TorchMode = .off
     @objc public var maxPhotoQualityPrioritization: MaxPhotoQualityPrioritization = .balanced
+    @objc public var shutterPhotoSound: Bool = true
     // ratio overlay
     @objc public var ratioOverlay: String?
     @objc public var ratioOverlayColor: UIColor?
@@ -65,6 +66,14 @@ public class CameraView: UIView {
 
     var eventInteraction: Any? = nil
 
+    var isSimulator: Bool {
+#if targetEnvironment(simulator)
+        true
+#else
+        false
+#endif
+    }
+
     // MARK: - Setup
 
     // This is used to delay camera setup until we have both granted permission & received default props
@@ -288,31 +297,38 @@ public class CameraView: UIView {
         if changedProps.contains("maxZoom") {
             camera.update(maxZoom: maxZoom?.doubleValue)
         }
+
+        if changedProps.contains("shutterPhotoSound") {
+            camera.update(shutterPhotoSound: shutterPhotoSound)
+        }
     }
 
     // MARK: Public
 
     @objc public func capture(onSuccess: @escaping (_ imageObject: [String: Any]) -> Void,
-                 onError: @escaping (_ error: String) -> Void) {
-        camera.capturePicture(onWillCapture: { [weak self] in
-            // Flash/dim preview to indicate shutter action
-            DispatchQueue.main.async {
-                self?.camera.previewView.alpha = 0
-                UIView.animate(withDuration: 0.35, animations: {
-                    self?.camera.previewView.alpha = 1
-                })
-            }
-        }, onSuccess: { [weak self] imageData, thumbnailData, dimensions in
-            DispatchQueue.global(qos: .default).async {
-                self?.writeCaptured(imageData: imageData,
-                                    thumbnailData: thumbnailData,
-                                    dimensions: dimensions,
-                                    onSuccess: onSuccess,
-                                    onError: onError)
-
-                self?.focusInterfaceView.resetFocus()
-            }
-        }, onError: onError)
+                              onError: @escaping (_ error: String) -> Void) {
+        let captureOptions = CaptureOptions(shutterPhotoSound: shutterPhotoSound)
+
+        camera.capturePicture(captureOptions: captureOptions,
+            onWillCapture: { [weak self] in
+                // Flash/dim preview to indicate shutter action
+                DispatchQueue.main.async {
+                    self?.camera.previewView.alpha = 0
+                    UIView.animate(withDuration: 0.35, animations: {
+                        self?.camera.previewView.alpha = 1
+                    })
+                }
+            }, onSuccess: { [weak self] imageData, thumbnailData, dimensions in
+                DispatchQueue.global(qos: .default).async {
+                    self?.writeCaptured(imageData: imageData,
+                                        thumbnailData: thumbnailData,
+                                        dimensions: dimensions,
+                                        onSuccess: onSuccess,
+                                        onError: onError)
+
+                    self?.focusInterfaceView.resetFocus()
+                }
+            }, onError: onError)
     }
 
     // MARK: - Private Helper