protected virtual void OnTapped(UITouch touch)
{
var devicePoint = previewLayer.CaptureDevicePointOfInterestForPoint(touch.LocationInView(this));
//FocusWithMode(AVCaptureFocusMode.AutoFocus, AVCaptureExposureMode.AutoExpose, devicePoint, true);
Console.WriteLine("Tapped {0}", devicePoint);
Tapped?.Invoke(this, new EventArgs());
}
void focus(PointF point)
{
PointF convertedFocusPoint = previewLayer.CaptureDevicePointOfInterestForPoint(point);
sessionManager.AutoFocus(convertedFocusPoint);
}
void FocusAndExposeTap(UIGestureRecognizer gestureRecognizer)
{
var devicePoint = VideoPreviewLayer.CaptureDevicePointOfInterestForPoint(gestureRecognizer.LocationInView(gestureRecognizer.View));
FocusWithMode(AVCaptureFocusMode.AutoFocus, AVCaptureExposureMode.AutoExpose, devicePoint, true);
}
// ReSharper disable once UnusedMember.Local
private void PreviewWasTapped(UIGestureRecognizer recognizer, UITouch touch)
{
var touchLocation = touch.LocationInView(touch.View);
var taps = touch.TapCount;
if (taps > 1)
{
TurnOffFlashAndSetContinuousAutoMode(_device);
}
else
{
if (_cameraModule.IsTapToFocusEnabled)
{
var focusPoint = new CGPoint();
if (_previousValidOrientation == UIDeviceOrientation.Portrait)
{
var translatedPoint = _avCaptureVideoPreviewLayer.CaptureDevicePointOfInterestForPoint(touchLocation);
focusPoint.X = translatedPoint.Y;
focusPoint.Y = translatedPoint.X;
focusPoint.X = 1 - focusPoint.X;
}
else if (_previousValidOrientation == UIDeviceOrientation.LandscapeLeft)
{
focusPoint = _avCaptureVideoPreviewLayer.CaptureDevicePointOfInterestForPoint(touchLocation);
}
else if (_previousValidOrientation == UIDeviceOrientation.LandscapeRight)
{
var translatedPoint = _avCaptureVideoPreviewLayer.CaptureDevicePointOfInterestForPoint(touchLocation);
focusPoint.X = 1 - translatedPoint.X;
focusPoint.Y = 1 - translatedPoint.Y;
}
if (focusPoint.Y < 0)
{
focusPoint.Y = 0;
}
if (focusPoint.Y > 1)
{
focusPoint.Y = 1;
}
_device.LockForConfiguration(out var error);
if (error != null)
{
return;
}
if (_device.FocusPointOfInterestSupported &&
_device.IsFocusModeSupported(AVCaptureFocusMode.AutoFocus))
{
_device.FocusPointOfInterest = focusPoint;
_device.FocusMode = AVCaptureFocusMode.AutoFocus;
}
if (_device.ExposurePointOfInterestSupported &&
_device.IsExposureModeSupported(AVCaptureExposureMode.AutoExpose))
{
_device.ExposurePointOfInterest = touchLocation;
_device.ExposureMode = AVCaptureExposureMode.AutoExpose;
}
if (_device.IsWhiteBalanceModeSupported(AVCaptureWhiteBalanceMode.AutoWhiteBalance))
{
_device.WhiteBalanceMode = AVCaptureWhiteBalanceMode.AutoWhiteBalance; //not sure about this
}
_device.UnlockForConfiguration();
}
}
}