/// <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();
}
}
// 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
{
if (null == mCameraDevice)
{
return;
}
// This is the CaptureRequest.Builder that we use to take a picture.
stillCaptureBuilder = mCameraDevice.CreateCaptureRequest(CameraTemplate.StillCapture);
stillCaptureBuilder.AddTarget(mImageReader.Surface);
// Use the same AE and AF modes as the preview.
stillCaptureBuilder.Set(CaptureRequest.ControlAfMode, (int)ControlAFMode.ContinuousPicture);
SetFlash(stillCaptureBuilder);
// Orientation
int rotation = (int)WindowManager.DefaultDisplay.Rotation;
var orient = GetOrientation(rotation);
stillCaptureBuilder.Set(CaptureRequest.JpegOrientation, orient);
mCaptureSession.StopRepeating();
mCaptureSession.Capture(stillCaptureBuilder.Build(), new CameraCaptureStillPictureSessionCallback(this), null);
}
catch (CameraAccessException e)
{
e.PrintStackTrace();
}
}
public void SetFlash(CaptureRequest.Builder requestBuilder)
{
if (mFlashSupported)
{
ControlAEMode sysFlashMode = 0;
switch (mFlashMode)
{
case FlashMode.On:
flashBtn.Background = GetDrawable(Resource.Drawable.outline_flash_auto_24);
sysFlashMode = ControlAEMode.On;
break;
case FlashMode.Off:
flashBtn.Background = GetDrawable(Resource.Drawable.outline_flash_off_24);
sysFlashMode = ControlAEMode.Off;
break;
case FlashMode.Auto:
flashBtn.Background = GetDrawable(Resource.Drawable.outline_flash_on_24);
sysFlashMode = ControlAEMode.OnAutoFlash;
break;
default:
break;
}
requestBuilder.Set(CaptureRequest.ControlAeMode, (int)ControlAEMode.On);
requestBuilder.Set(CaptureRequest.FlashMode, (int)sysFlashMode);
}
}
public async Task <ICameraPreview> OpenWithPreviewAsync(Xamarin.Forms.Size previewRequestSize)
{
await OpenAsync(true);
var stateCallback = new StateCallback();
stateCallback.Configured += SessionConfigured;
stateCallback.ConfigureFailed += SessionConfigureFailed;
var previewSurface = _cameraPreview.CreateSurface(previewRequestSize);
_previewRequestBuilder.AddTarget(previewSurface);
_previewRequestBuilder.Set(CaptureRequest.ControlAfMode, (int)ControlAFMode.ContinuousPicture);
var characteristics = _manager.GetCameraCharacteristics(_cameraDevice.Id);
var map = (StreamConfigurationMap)characteristics.Get(CameraCharacteristics.ScalerStreamConfigurationMap);
// ReSharper disable once CoVariantArrayConversion
_imageSize = (Size)Collections.Max(
Arrays.AsList(map.GetOutputSizes((int)ImageFormatType.Jpeg)),
new CompareSizesByArea());
_imageReader = ImageReader.NewInstance(_imageSize.Width, _imageSize.Height,
ImageFormatType.Jpeg, /* maxImages */ 2);
_imageAvailableListener = new ImageAvailableListener();
_imageAvailableListener.ImageAvailable += CaptureAvailable;
_imageReader.SetOnImageAvailableListener(_imageAvailableListener, _backgroundThread.Handler);
var surfaces = new List <Surface> {
previewSurface, _imageReader.Surface
};
_cameraDevice.CreateCaptureSession(surfaces, stateCallback, null);
return(_cameraPreview);
}
// 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 == mCameraDevice)
{
return;
}
// This is the CaptureRequest.Builder that we use to take a picture.
if (stillCaptureBuilder == null)
{
stillCaptureBuilder = mCameraDevice.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);
stillCaptureBuilder.Set(CaptureRequest.JpegOrientation, 90);//TODO
mCaptureSession.StopRepeating();
mCaptureSession.Capture(stillCaptureBuilder.Build(), new CaptureStillPictureSessionCallback(this), null);
}
catch (CameraAccessException e)
{
e.PrintStackTrace();
}
}
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();
}
}
private void CaptureStillPicture()
{
try
{
// 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);
Utils.SetAutoFlash(_stillCaptureBuilder, _manager, _cameraId);
var rotation = Utils.CalculateRotation();
_stillCaptureBuilder.Set(CaptureRequest.JpegOrientation, Utils.GetOrientation(rotation));
_captureSession.StopRepeating();
var stillCaptureListener = new CameraCaptureListener();
stillCaptureListener.CaptureResultAvailable += StillCaptureHandler;
_captureSession.Capture(_stillCaptureBuilder.Build(),
stillCaptureListener, null);
}
catch (CameraAccessException e)
{
Debug.WriteLine(e);
throw;
}
}
//Start the camera preview
public void startPreview()
{
if (null == cameraDevice || !textureView.IsAvailable || null == previewSize)
{
return;
}
try
{
closePreviewSession();
SurfaceTexture texture = textureView.SurfaceTexture;
//Assert.IsNotNull(texture);
texture.SetDefaultBufferSize(previewSize.Width, previewSize.Height);
previewBuilder = cameraDevice.CreateCaptureRequest(CameraTemplate.Record);
surfaces = new List <Surface>();
var previewSurface = new Surface(texture);
surfaces.Add(previewSurface);
previewBuilder.AddTarget(previewSurface);
if (previewBuilder != null)
{
if (flashon)
{
previewBuilder.Set(CaptureRequest.FlashMode, (int)FlashMode.Torch);
}
Rect sensor_rect = max;
int left = sensor_rect.Width() / 2;
int right = left;
int top = sensor_rect.Height() / 2;
int bottom = top;
int hwidth = (int)(sensor_rect.Width() / (2.0 * zoomlev));
int hheight = (int)(sensor_rect.Height() / (2.0 * zoomlev));
left -= hwidth;
right += hwidth;
top -= hheight;
bottom += hheight;
previewBuilder.Set(CaptureRequest.ScalerCropRegion, new Rect(left, top, right, bottom));
}
previewBuilder.Set(CaptureRequest.ControlAfMode, (int)ControlAFMode.Off);
previewBuilder.Set(CaptureRequest.ControlAfTrigger, (int)ControlAFTrigger.Cancel);
//var recorderSurface = mediaRecorder.Surface;
//surfaces.Add(recorderSurface);
//previewBuilder.AddTarget(recorderSurface);
mPreviewSession = new PreviewCaptureStateCallback(this, false);
cameraDevice.CreateCaptureSession(surfaces, mPreviewSession, backgroundHandler);
}
catch (CameraAccessException e)
{
e.PrintStackTrace();
}
catch (IOException e)
{
e.PrintStackTrace();
}
}
public void AdjustFocus(int focusValue)
{
if (mPreviewRequestBuilder == null)
{
return;
}
if (minimumLens != null && minimumLens != 0)
{
mPreviewRequestBuilder.Set(CaptureRequest.ControlAfMode, (int)ControlAFMode.Off);
float num = (((float)focusValue) * (float)minimumLens / 100);
mPreviewRequestBuilder.Set(CaptureRequest.LensFocusDistance, num);
mCaptureSession?.SetRepeatingRequest(mPreviewRequest = mPreviewRequestBuilder.Build(), null, mBackgroundHandler);
}
else if (availableFocalLenths != null && availableFocalLenths.Any())
{
availableFocalLenths = availableFocalLenths.OrderBy((arg) => arg).ToArray();
mPreviewRequestBuilder.Set(CaptureRequest.ControlAfMode, (int)ControlAFMode.Off);
float max1 = (float)availableFocalLenths.Last();//10000
float min1 = (float)availableFocalLenths.First();
var foc = ((focusValue * (max1 - min1)) / 100 + min1);
mPreviewRequestBuilder.Set(CaptureRequest.LensFocalLength, foc);
mCaptureSession?.SetRepeatingRequest(mPreviewRequest = mPreviewRequestBuilder.Build(), null, mBackgroundHandler);
}
}
public void CapturePreviewShot()
{
try
{
//final Activity activity = getActivity();
if (null == mCameraDevice)
{
return;
}
// This is the CaptureRequest.Builder that we use to take a picture.
//final CaptureRequest.Builder captureBuilder = mCameraDevice.createCaptureRequest(CameraDevice.TEMPLATE_PREVIEW);
CaptureRequest.Builder captureBuilder = mCameraDevice.CreateCaptureRequest(CameraTemplate.Preview);
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)WindowManager.DefaultDisplay.Rotation;
captureBuilder.Set(CaptureRequest.JpegOrientation, GetOrientation(rotation));
mCaptureSession.StopRepeating();
//mCaptureSession.Capture(captureBuilder.Build(), new CameraCapturePreviewSessionCallback(this), null);
mCaptureSession.Capture(captureBuilder.Build(), new CameraCapturePreviewSessionCallback(this), mBackgroundHandler);
}
catch (CameraAccessException e)
{
e.PrintStackTrace();
}
}
/// <summary>
/// Updates the camera preview, StartPreview() needs to be called in advance
/// </summary>
private void UpdatePreview()
{
if (_cameraDevice != null && _previewSession != null)
{
try
{
// The camera preview can be run in a background thread. This is a Handler for the camere preview
_previewBuilder.Set(CaptureRequest.ControlMode, new Java.Lang.Integer((int)ControlMode.Auto));
// We create a Handler since we want to handle the resulting JPEG in a background thread
HandlerThread thread = new HandlerThread("CameraPicture");
thread.Start();
Handler backgroundHandler = new Handler(thread.Looper);
// Finally, we start displaying the camera preview
//if (_previewSession.IsReprocessable)
_previewSession.SetRepeatingRequest(_previewBuilder.Build(), null, backgroundHandler);
}
catch (CameraAccessException error)
{
Log.WriteLine(LogPriority.Error, error.Source, error.Message);
}
catch (IllegalStateException error)
{
Log.WriteLine(LogPriority.Error, error.Source, error.Message);
}
}
}
public void TakePhoto()
{
var characteristics = cameraManager.GetCameraCharacteristics(CameraDevice.Id);
var jpegSizes = ((StreamConfigurationMap)characteristics.Get(CameraCharacteristics.ScalerStreamConfigurationMap)).GetOutputSizes((int)ImageFormatType.Jpeg);
var width = jpegSizes[0].Width;
var height = jpegSizes[0].Height;
var reader = ImageReader.NewInstance(width, height, ImageFormatType.Jpeg, 1);
var outputSurfaces = new List <Surface> {
reader.Surface
};
CaptureRequest.Builder captureBuilder = CameraDevice.CreateCaptureRequest(CameraTemplate.StillCapture);
captureBuilder.AddTarget(reader.Surface);
captureBuilder.Set(CaptureRequest.ControlMode, (int)ControlMode.Auto);
// Orientation
var windowManager = Context.GetSystemService(Context.WindowService).JavaCast <IWindowManager>();
SurfaceOrientation rotation = windowManager.DefaultDisplay.Rotation;
captureBuilder.Set(CaptureRequest.JpegOrientation, orientation);
var readerListener = new ImageAvailableListener();
readerListener.Photo += (sender, e) =>
{
(Element as Controls.CameraPage).SetPhotoResult(e, width, height);
};
HandlerThread thread = new HandlerThread("CameraPicture");
thread.Start();
Handler backgroundHandler = new Handler(thread.Looper);
reader.SetOnImageAvailableListener(readerListener, backgroundHandler);
var captureListener = new CameraCaptureListener();
captureListener.PhotoComplete += (sender, e) =>
{
StartPreview();
};
CameraDevice.CreateCaptureSession(outputSurfaces, new CameraCaptureStateListener()
{
OnConfiguredAction = (CameraCaptureSession session) =>
{
try
{
previewSession = session;
session.Capture(captureBuilder.Build(), captureListener, backgroundHandler);
}
catch (CameraAccessException ex)
{
Log.WriteLine(LogPriority.Info, "Capture Session error: ", ex.ToString());
}
}
}, backgroundHandler);
}
private void UpdatePreview()
{
if (CameraDevice == null || previewSession == null)
{
return;
}
previewBuilder.Set(CaptureRequest.ControlAfMode, (int)ControlAFMode.ContinuousPicture);
SetAutoFlash(previewBuilder);
previewRequest = previewBuilder.Build();
previewSession.SetRepeatingRequest(previewRequest, cameraCaptureListener, backgroundHandler);
}
void SetUpCaptureRequestBuilder(CaptureRequest.Builder builder)
{
// In this sample, we just let the camera device pick the automatic settings
builder.Set(CaptureRequest.ControlMode, new Integer((int)ControlMode.Auto));
if (ActiveCameraDevice.Id == backCameraId)
{
builder.Set(CaptureRequest.FlashMode, new Integer((int)FlashMode.Off));
}
else if (ActiveCameraDevice.Id == frontCameraId)
{
builder.Set(CaptureRequest.FlashMode, new Integer((int)FlashMode.Off));
}
}
private void UpdatePreview()
{
if (CameraDevice == null || _previewSession == null)
{
return;
}
// Reset the auto-focus trigger
_previewBuilder.Set(CaptureRequest.ControlAfMode, (int)ControlAFMode.ContinuousPicture);
SetAutoFlash(_previewBuilder);
_previewRequest = _previewBuilder.Build();
_previewSession.SetRepeatingRequest(_previewRequest, _cameraCaptureListener, _backgroundHandler);
}
// Creates a new {@link CameraCaptureSession} for camera preview.
public void CreateCameraPreviewSession(bool builderexists = false)
{
try
{
var texture = mTextureView.SurfaceTexture;
if (texture == null)
{
throw new IllegalStateException("texture is null");
}
// We configure the size of default buffer to be the size of camera preview we want.
texture.SetDefaultBufferSize(mPreviewSize.Width, mPreviewSize.Height);
// This is the output Surface we need to start preview.
var surface = new Surface(texture);
// We set up a CaptureRequest.Builder with the output Surface.
if (!builderexists)
{
mPreviewRequestBuilder = mCameraDevice.CreateCaptureRequest(CameraTemplate.Preview);
}
//mPreviewRequestBuilder.Set(CaptureRequest.ControlAeTargetFpsRange, new Android.Util.Range(30, 120));
mPreviewRequestBuilder.Set(CaptureRequest.ControlAeMode, (int)ControlAEMode.On);
mPreviewRequestBuilder.Set(CaptureRequest.ControlAwbMode, (int)ControlAwbMode.Auto);
mPreviewRequestBuilder.Set(CaptureRequest.ControlAePrecaptureTrigger, (int)ControlAEPrecaptureTrigger.Start);
mPreviewRequestBuilder.Set(CaptureRequest.LensOpticalStabilizationMode, (int)LensOpticalStabilizationMode.On);
mPreviewRequestBuilder.Set(CaptureRequest.EdgeMode, (int)EdgeMode.Fast);
mPreviewRequestBuilder.Set(CaptureRequest.ShadingMode, (int)ShadingMode.HighQuality);
mPreviewRequestBuilder.Set(CaptureRequest.TonemapMode, (int)TonemapMode.HighQuality);
mPreviewRequestBuilder.AddTarget(surface);
// Here, we create a CameraCaptureSession for camera preview.
var surfaces = new List <Surface>();
surfaces.Add(surface);
surfaces.Add(mImageReader.Surface);
mCameraCaptureSessionCallback = new CameraCaptureSessionCallback(this);
mCameraDevice.CreateCaptureSession(surfaces, mCameraCaptureSessionCallback, null);
}
catch (CameraAccessException e)
{
Crashes.TrackError(e);
e.PrintStackTrace();
}
}
private void ToggleFlashLight()
{
if (!mFlashLightOn)
{
mPreviewRequestBuilder.Set(CaptureRequest.FlashMode, (int)FlashMode.Torch);
mFlashLightOn = true;
}
else
{
mPreviewRequestBuilder.Set(CaptureRequest.FlashMode, (int)FlashMode.Off);
mFlashLightOn = false;
}
mPreviewRequest = mPreviewRequestBuilder.Build();
mCaptureSession.SetRepeatingRequest(mPreviewRequest, mCaptureCallback, mBackgroundHandler);
}
// Lock the focus as the first step for a still image capture.
private void LockFocus()
{
try
{
mPreviewRequestBuilder.Set(CaptureRequest.ControlAfTrigger, (int)ControlAFTrigger.Start);
// Tell #mCaptureCallback to wait for the lock.
mState = CameraConstants.CameraStates.STATE_WAITING_LOCK;
mCaptureSession.Capture(mPreviewRequestBuilder.Build(), mCaptureCallback,
mBackgroundHandler);
}
catch (CameraAccessException e)
{
e.PrintStackTrace();
}
}
public void DisableFlash(CaptureRequest.Builder requestBuilder)
{
if (mFlashSupported)
{
requestBuilder.Set(CaptureRequest.FlashMode, (int)FlashMode.Off);
}
}
// 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
}
}
public void StartPreview()
{
if (liveTextureView.SurfaceTexture == null)
{
return;
}
var texture = liveTextureView.SurfaceTexture;
texture.SetDefaultBufferSize(previewSize.Width, previewSize.Height);
var surface = new Surface(texture);
previewBuilder = CameraDevice.CreateCaptureRequest(CameraTemplate.Preview);
previewBuilder.AddTarget(surface);
CameraDevice.CreateCaptureSession(new List <Surface> {
surface
}, new CameraCaptureStateListener
{
OnConfigureFailedAction = (CameraCaptureSession session) =>
{
},
OnConfiguredAction = (CameraCaptureSession session) =>
{
previewSession = session;
previewBuilder.Set(CaptureRequest.ControlMode, new Java.Lang.Integer((int)ControlMode.Auto));
var thread = new HandlerThread("CameraPicture");
thread.Start();
var backgroundHandler = new Handler(thread.Looper);
previewSession.SetRepeatingRequest(previewBuilder.Build(), null, backgroundHandler);
}
}, null);
}
public void TakePhoto()
{
if (_context == null || CameraDevice == null)
{
return;
}
if (_captureBuilder == null)
{
_captureBuilder = CameraDevice.CreateCaptureRequest(CameraTemplate.StillCapture);
}
_captureBuilder.AddTarget(_imageReader.Surface);
_captureBuilder.Set(CaptureRequest.ControlAfMode, (int)ControlAFMode.ContinuousPicture);
SetAutoFlash(_captureBuilder);
_previewSession.StopRepeating();
_previewSession.Capture(_captureBuilder.Build(),
new CameraCaptureStillPictureSessionCallback
{
OnCaptureCompletedAction = session =>
{
UnlockFocus();
}
}, null);
}
protected void SetAutoFlash(CaptureRequest.Builder captureRequestBuilder)
{
if (FlashSupported)
{
captureRequestBuilder.Set(CaptureRequest.ControlAeMode, (int)ControlAEMode.OnAutoFlash);
}
}
public void SetFaceDetect(CaptureRequest.Builder requestBuilder, int faceDetectMode)
{
if (mFaceDetectSupported)
{
requestBuilder.Set(CaptureRequest.StatisticsFaceDetectMode, faceDetectMode);
}
}
public void SetAutoFlash(CaptureRequest.Builder requestBuilder)
{
if (mFlashSupported)
{
requestBuilder.Set(CaptureRequest.ControlAeMode, (int)ControlAEMode.OnAutoFlash);
}
}
void OnConfigured(object sender, CameraCaptureSessionEventArgs e)
{
// The camera is already closed
if (null == cameraDevice)
{
return;
}
// When the session is ready, we start displaying the preview.
captureSession = e.Session;
try
{
// Auto focus should be continuous for camera preview.
previewRequestBuilder.Set(CaptureRequest.ControlAfMode, (int)ControlAFMode.Edof);
// Flash is automatically enabled when necessary. For now, we skip this.
// SetAutoFlash(previewRequestBuilder);
// Finally, we start displaying the camera preview.
previewRequest = previewRequestBuilder.Build();
if (captureListener == null)
{
captureListener = new CameraCaptureListener();
captureListener.CaptureCompleted += OnCaptureCompleted;
captureListener.CaptureProgressed += OnCaptureProgressed;
}
captureSession.SetRepeatingRequest(previewRequest, captureListener, backgroundHandler);
}
catch (CameraAccessException ex)
{
ex.PrintStackTrace();
}
}
//public override void OnCaptureCompleted(CameraCaptureSession session, CaptureRequest request, TotalCaptureResult result)
//{
// //if (_isReady)
// // TakePicture();
//}
private void TakePicture()
{
//_isReady = false;
if (_stillImageListener.IsBusy)
{
return;
}
CaptureRequest.Builder captureRequest = _session.Device.CreateCaptureRequest(CameraTemplate.StillCapture);
captureRequest.Set(CaptureRequest.ControlAfMode, (int)ControlAFMode.ContinuousPicture);
captureRequest.Set(CaptureRequest.JpegOrientation, 90);
captureRequest.AddTarget(_reader.Surface);
CaptureRequest stillImageRequest = captureRequest.Build();
_session.Capture(stillImageRequest, _emptyCaptureCallback, new Handler(message => { }));
}
public static void SetAutoFlash(CaptureRequest.Builder requestBuilder,
Android.Hardware.Camera2.CameraManager cameraManager, string cameraId)
{
if (IsFlashSupported(cameraManager, cameraId))
{
requestBuilder.Set(CaptureRequest.ControlAeMode, (int)ControlAEMode.OnAutoFlash);
}
}
public void SetAutoFlash(CaptureRequest.Builder requestBuilder)
{
if (flashSupported)
{
var mode = IsFlashEnabled ? (int)ControlAEMode.OnAutoFlash : (int)ControlAEMode.Off;
requestBuilder.Set(CaptureRequest.ControlAeMode, mode);
}
}
// Lock the focus as the first step for a still image capture.
public void LockFocus()
{
try
{
// This is how to tell the camera to lock focus.
mPreviewRequestBuilder.Set(CaptureRequest.ControlAfTrigger, (int)ControlAFTrigger.Start);
// Tell #mCaptureCallback to wait for the lock.
mState = STATE_WAITING_LOCK;
//mCaptureSession.Capture(mPreviewRequestBuilder.Build(), mCaptureCallback,
//mBackgroundHandler);
CaptureStillPicture();
}
catch (CameraAccessException e)
{
e.PrintStackTrace();
}
}
