public void WillDisplayCameraCell(CameraCollectionViewCell cell)
{
SetupCameraCellIfNeeded(cell);
if (cell is LivePhotoCameraCell liveCameraCell)
{
liveCameraCell.UpdateWithCameraMode(CaptureSettings.CameraMode);
}
if (_captureSession.PhotoCaptureSession != null)
{
//update live photos
cell.UpdateLivePhotoStatus(_captureSession.PhotoCaptureSession.InProgressLivePhotoCapturesCount > 0,
false);
}
//update video recording status
var isRecordingVideo = _captureSession.VideoCaptureSession?.IsRecordingVideo ?? false;
cell.UpdateRecordingVideoStatus(isRecordingVideo, false);
//update authorization status if it's changed
var status = AVCaptureDevice.GetAuthorizationStatus(AVAuthorizationMediaType.Video);
if (cell.AuthorizationStatus != status)
{
cell.AuthorizationStatus = status;
}
//resume session only if not recording video
if (!isRecordingVideo)
{
_captureSession.Resume();
}
}
public void DidEndDisplayingCameraCell(CameraCollectionViewCell cell)
{
var isRecordingVideo = _captureSession.VideoCaptureSession?.IsRecordingVideo ?? false;
//suspend session only if not recording video, otherwise the recording would be stopped.
if (isRecordingVideo == false)
{
_captureSession.Suspend();
DispatchQueue.MainQueue.DispatchAsync(() => cell.BlurIfNeeded(false, null));
}
}
private void SetupCameraCellIfNeeded(CameraCollectionViewCell cell)
{
if (cell.Delegate != null)
{
return;
}
cell.Delegate = _cameraCollectionViewCellDelegate;
cell.PreviewView.Session = _captureSession.Session;
_captureSession.PreviewLayer = cell.PreviewView.PreviewLayer;
var config = _captureSession.PresetConfiguration;
if (config == SessionPresetConfiguration.Videos)
{
cell.IsVisualEffectViewUsedForBlurring = true;
}
}
