feat: frontMirrored property

Author: farfromrefug

packages/ui-cameraview/platforms/android/java/com/nativescript/cameraview/CameraView.kt

@@ -153,6 +153,18 @@ constructor(context: Context, attrs: AttributeSet? = null, defStyleAttr: Int = 0
             }
         }
 
+    var frontMirrored: Boolean = false
+        set(value) {
+            field = value
+            if (value && position == CameraSelector.LENS_FACING_FRONT) {
+                previewView.setImplementationMode(PreviewView.ImplementationMode.COMPATIBLE)
+                previewView.scaleX = -1f  // Mirror horizontally
+            } else {
+                previewView.setImplementationMode(PreviewView.ImplementationMode.PERFORMANCE)
+                previewView.scaleX = 1f 
+            }
+        }
+
     private fun handleZoom() {
         camera?.cameraControl?.let {
             val future = it.setZoomRatio(zoom.coerceIn(minZoom, maxZoom))
@@ -1696,6 +1708,13 @@ constructor(context: Context, attrs: AttributeSet? = null, defStyleAttr: Int = 0
                 }
             safeUnbindAll()
             refreshCamera()
+            if (frontMirrored && position == CameraSelector.LENS_FACING_FRONT) {
+                previewView.setImplementationMode(PreviewView.ImplementationMode.COMPATIBLE)
+                previewView.scaleX = -1f  // Mirror horizontally
+            } else {
+                previewView.setImplementationMode(PreviewView.ImplementationMode.PERFORMANCE)
+                previewView.scaleX = 1f 
+            }
         }
     }
 

packages/ui-cameraview/platforms/ios/src/NSCameraView.swift

@@ -62,6 +62,22 @@ public class NSCameraView: UIView, NextLevelVideoDelegate, NextLevelPhotoDelegat
       self.nextLevel?.previewLayer.videoGravity = AVLayerVideoGravity(rawValue: newValue)
     }
   }
+
+  private var _frontMirrored: Bool
+  public var frontMirrored: Bool {
+    get {
+      return self.frontMirrored
+    }
+    set {
+      self._frontMirrored = newValue
+      if newValue && let previewLayer = nextLevel.previewLayer {
+        previewLayer.connection?.automaticallyAdjustsVideoMirroring = false
+        previewLayer.connection?.isVideoMirrored = false // or true if you want mirrored
+      } else {
+        previewLayer.connection?.automaticallyAdjustsVideoMirroring = true
+      }
+    }
+  }
 
   public var flashMode: Int {
     get {
@@ -173,6 +189,12 @@ public class NSCameraView: UIView, NextLevelVideoDelegate, NextLevelPhotoDelegat
   }
   public func toggleCamera() {
     self.nextLevel?.flipCaptureDevicePosition()
+    if self_frontMirrored && let previewLayer = nextLevel.previewLayer {
+      previewLayer.connection?.automaticallyAdjustsVideoMirroring = false
+      previewLayer.connection?.isVideoMirrored = false // or true if you want mirrored
+    } else {
+      previewLayer.connection?.automaticallyAdjustsVideoMirroring = true
+    }
   }
   public func focusAtAdjustedPointOfInterest(_ adjustedPoint: CGPoint){
     self.nextLevel?.focusAtAdjustedPointOfInterest(adjustedPoint: adjustedPoint)

src/ui-cameraview/index.android.ts

@@ -8,6 +8,7 @@ import {
     captureModeProperty,
     enablePinchZoomProperty,
     flashModeProperty,
+    frontMirroredProperty,
     jpegQualityProperty,
     pictureSizeProperty,
     saveToGalleryProperty,
@@ -270,6 +271,9 @@ export class CameraView extends CameraViewBase {
     [aspectRatioProperty.setNative](value) {
         this.nativeViewProtected.setAspectRatio(value);
     }
+    [frontMirroredProperty.setNative](value) {
+        this.nativeViewProtected.setFrontMirrored(value);
+    }
     [flashModeProperty.setNative](value: string | number) {
         if (typeof value === 'number') {
             this.nativeViewProtected.setFlashMode(java.lang.Integer.valueOf(value));

src/ui-cameraview/index.common.ts

@@ -57,6 +57,11 @@ export const autoFocusProperty = new Property<CameraViewBase, boolean | number>(
     defaultValue: false,
     valueConverter: (v) => (v === 'false' || v === 'true' ? booleanConverter(v) : parseInt(v, 10))
 });
+export const frontMirroredProperty = new Property<CameraViewBase, boolean>({
+    name: 'frontMirrored',
+    defaultValue: false,
+    valueConverter: booleanConverter
+});
 export const saveToGalleryProperty = new Property<CameraViewBase, boolean>({
     name: 'saveToGallery',
     defaultValue: false,
@@ -96,3 +101,4 @@ enablePinchZoomProperty.register(CameraViewBase);
 saveToGalleryProperty.register(CameraViewBase);
 stretchProperty.register(CameraViewBase);
 aspectRatioProperty.register(CameraViewBase);
+frontMirroredProperty.register(CameraViewBase);

src/ui-cameraview/typings/android.d.ts

@@ -334,6 +334,7 @@ declare namespace com {
                 public setSavePhotoToDisk(param0: boolean): void;
                 public getCameras(): java.util.List<Camera>;
                 public setAspectRatio(param0: string): void;
+                public setFrontMirrored(param0: boolean): void;
                 public getAmplitudeEMA(): number;
                 public getCurrentResolutionInfo(): string;
                 public getPause(): boolean;