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[iOS] Change from Device orientation to App UI orientation for PreviewLayer #195

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[iOS] Change from Device orientation to App UI orientation for PreviewLayer #195

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39 changes: 20 additions & 19 deletions Camera.MAUI/Apple/MauiCameraView.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -581,29 +581,30 @@ void DidFinishProcessingPhoto(AVCapturePhotoOutput captureOutput, CMSampleBuffer
public override void LayoutSubviews()
{
base.LayoutSubviews();
CATransform3D transform = CATransform3D.MakeRotation(0, 0, 0, 1.0f);
switch (UIDevice.CurrentDevice.Orientation)
{
case UIDeviceOrientation.Portrait:
transform = CATransform3D.MakeRotation(0, 0, 0, 1.0f);
break;
case UIDeviceOrientation.PortraitUpsideDown:
transform = CATransform3D.MakeRotation((nfloat)Math.PI, 0, 0, 1.0f);
break;
case UIDeviceOrientation.LandscapeLeft:
var rotation = cameraView.Camera?.Position == CameraPosition.Back ? -Math.PI / 2 : Math.PI / 2;
transform = CATransform3D.MakeRotation((nfloat)rotation, 0, 0, 1.0f);
break;
case UIDeviceOrientation.LandscapeRight:
var rotation2 = cameraView.Camera?.Position == CameraPosition.Back ? Math.PI / 2 : -Math.PI /2;
transform = CATransform3D.MakeRotation((nfloat)rotation2, 0, 0, 1.0f);
break;
}

PreviewLayer.Transform = transform;
if(PreviewLayer?.Connection != null)
PreviewLayer.Connection.VideoOrientation = GetInterfaceOrientation();
PreviewLayer.Frame = Layer.Bounds;
}

private AVCaptureVideoOrientation GetInterfaceOrientation()
{
IEnumerable<UIScene> scenes = UIApplication.SharedApplication.ConnectedScenes;
var interfaceOrientation = scenes.FirstOrDefault() is UIWindowScene windowScene
? windowScene.InterfaceOrientation
: UIApplication.SharedApplication.StatusBarOrientation;


return interfaceOrientation switch
{
UIInterfaceOrientation.Portrait => AVCaptureVideoOrientation.Portrait,
UIInterfaceOrientation.PortraitUpsideDown => AVCaptureVideoOrientation.PortraitUpsideDown,
UIInterfaceOrientation.LandscapeRight => AVCaptureVideoOrientation.LandscapeRight,
UIInterfaceOrientation.LandscapeLeft => AVCaptureVideoOrientation.LandscapeLeft,
_ => AVCaptureVideoOrientation.Portrait
};
}

public void FinishedRecording(AVCaptureFileOutput captureOutput, NSUrl outputFileUrl, NSObject[] connections, NSError error)
{

Expand Down