public void CaptureStillPicture()
{
try
{
if (Device == null)
{
return;
}
// This is the CaptureRequest.Builder that we use to take a picture.
if (stillCaptureBuilder == null)
{
stillCaptureBuilder = Device.CreateCaptureRequest(CameraTemplate.StillCapture);
}
stillCaptureBuilder.AddTarget(mImageReader.Surface);
// Use the same AE and AF modes as the preview.
stillCaptureBuilder.Set(CaptureRequest.ControlAfMode, (int)ControlAFMode.ContinuousPicture);
SetAutoFlash(stillCaptureBuilder);
// Orientation
var windowManager = Context.GetSystemService(Context.WindowService).JavaCast <IWindowManager>();
int rotation = (int)windowManager.DefaultDisplay.Rotation;
stillCaptureBuilder.Set(CaptureRequest.JpegOrientation, GetOrientation(rotation));
CaptureSession.StopRepeating();
CaptureSession.Capture(stillCaptureBuilder.Build(), new CameraCaptureStillPictureSessionCallback(this), null);
}
catch (CameraAccessException e)
{
e.PrintStackTrace();
}
}
// Capture a still picture. This method should be called when we get a response in
// {@link #mCaptureCallback} from both {@link #lockFocus()}.
public void CaptureStillPicture()
{
try
{
var activity = Activity;
if (null == activity || null == CameraDevice)
{
return;
}
// This is the CaptureRequest.Builder that we use to take a picture.
//if (_stillCaptureBuilder == null)
//{
_stillCaptureBuilder = CameraDevice.CreateCaptureRequest(CameraTemplate.StillCapture);
//}
_stillCaptureBuilder.AddTarget(_imageReader.Surface);
// Use the same AE and AF modes as the preview.
_stillCaptureBuilder.Set(CaptureRequest.ControlAfMode, (int)ControlAFMode.ContinuousPicture);
SetAutoFlash(_stillCaptureBuilder);
CaptureSession.StopRepeating();
CaptureSession.Capture(_stillCaptureBuilder.Build(), new CameraCaptureStillPictureSessionCallback(this), null);
}
catch (CameraAccessException ex)
{
#if DEBUG
ex.PrintStackTrace();
#endif
}
}
/// <summary>
/// Capture a still picture. This method should be called when we get a response in
/// CaptureCallback from both LockFocus()
/// </summary>
public void CaptureStillPicture()
{
try
{
var activity = Activity;
if (null == activity || null == CameraDevice)
{
return;
}
// This is the CaptureRequest.Builder that we use to take a picture.
CaptureRequest.Builder captureBuilder =
CameraDevice.CreateCaptureRequest(CameraTemplate.StillCapture);
captureBuilder.AddTarget(mImageReader.Surface);
// Use the same AE and AF modes as the preview.
captureBuilder.Set(CaptureRequest.ControlAfMode,
(int)ControlAFMode.ContinuousPicture);
SetAutoFlash(captureBuilder);
// Orientation
int rotation = (int)activity.WindowManager.DefaultDisplay.Rotation;
captureBuilder.Set(CaptureRequest.JpegOrientation, GetOrientation(rotation));
var captureCallback = new CameraCaptureSessionCaptureCallback2(this);
CaptureSession.StopRepeating();
CaptureSession.Capture(captureBuilder.Build(), captureCallback, null);
}
catch (CameraAccessException e)
{
e.PrintStackTrace();
}
}
public void RunPrecaptureSequence()
{
try
{
// This is how to tell the camera to trigger.
PreviewRequestBuilder.Set(CaptureRequest.ControlAePrecaptureTrigger, (int)ControlAEPrecaptureTrigger.Start);
// Tell #mCaptureCallback to wait for the precapture sequence to be set.
State = CameraState.WaitingPrecapture;
CaptureSession.Capture(PreviewRequestBuilder.Build(), CaptureCallback, BackgroundHandler);
}
catch (CameraAccessException e)
{
e.PrintStackTrace();
}
}
public void LockFocus()
{
try
{
// This is how to tell the camera to lock focus.
PreviewRequestBuilder.Set(CaptureRequest.ControlAfTrigger, (int)ControlAFTrigger.Start);
// Tell #mCaptureCallback to wait for the lock.
State = CameraState.WaitingLock;
CaptureSession.Capture(PreviewRequestBuilder.Build(), CaptureCallback, BackgroundHandler);
}
catch (CameraAccessException e)
{
e.PrintStackTrace();
}
}
/// <summary>
/// Lock the focus as the first step for a still image capture.
/// </summary>
private void LockFocus()
{
try
{
// This is how to tell the camera to lock focus.
PreviewRequestBuilder.Set(CaptureRequest.ControlAfTrigger, (int)ControlAFTrigger.Start);
// Tell #CaptureCallback to wait for the lock.
CurrentCameraState = STATE_WAITING_LOCK;
// this will kick off the image-capture pipeline
CaptureSession.Capture(PreviewRequestBuilder.Build(), CaptureCallback, BackgroundHandler);
}
catch (CameraAccessException e)
{
e.PrintStackTrace();
}
}
public void UnlockFocus()
{
try
{
// Reset the auto-focus trigger
PreviewRequestBuilder.Set(CaptureRequest.ControlAfTrigger, (int)ControlAFTrigger.Cancel);
SetAutoFlash(PreviewRequestBuilder);
CaptureSession.Capture(PreviewRequestBuilder.Build(), CaptureCallback, BackgroundHandler);
// After this, the camera will go back to the normal state of preview.
State = CameraState.Preview;
CaptureSession.SetRepeatingRequest(PreviewRequest, CaptureCallback, BackgroundHandler);
}
catch (CameraAccessException e)
{
e.PrintStackTrace();
}
}
