private bool safeCameraOpenInView(View view)
{
bool opened = false;
releaseCameraAndPreview();
mCamera = getCameraInstance(CURRENTCAMERA);
mCameraView = view;
opened = mCamera != null;
if (opened)
{
mPreview = new CameraPreview(Activity.BaseContext, mCamera, view);
FrameLayout preview = view.FindViewById <FrameLayout>(Resource.Id.camera_preview);
preview.AddView(mPreview, 0);
mPreview.StartCameraPreview();
try
{
mCamera.EnableShutterSound(false);
}
catch
{
}
}
return(opened);
}
private void SetupAndStartCamera(SurfaceTexture surface = null)
{
try
{
if (_isSurfaceAvailable)
{
if (_camera == null)
{
_camera = Camera.Open((int)_cameraType);
_camera.SetErrorCallback(this);
for (var ii = 0; ii < Camera.NumberOfCameras - 1; ii++)
{
var info = new Camera.CameraInfo();
Camera.GetCameraInfo(ii, info);
if (info.CanDisableShutterSound)
{
_camera.EnableShutterSound(false);
}
}
var parameters = _camera.GetParameters();
parameters.FlashMode = Camera.Parameters.FlashModeOff;
parameters.VideoStabilization = false;
parameters.JpegQuality = 100;
TurnOnContinuousFocus(parameters);
var landscapePictureDescendingSizes = parameters
.SupportedPictureSizes
.Where(p => p.Width > p.Height)
.OrderByDescending(p => p.Width * p.Height)
.ToList();
var landscapePreviewDescendingSizes = parameters
.SupportedPreviewSizes
.Where(p => p.Width > p.Height)
.OrderByDescending(p => p.Width * p.Height)
.ToList();
foreach (var pictureSize in landscapePictureDescendingSizes)
{
foreach (var previewSize in landscapePreviewDescendingSizes)
{
if (Math.Abs((double)pictureSize.Width / pictureSize.Height -
(double)previewSize.Width / previewSize.Height) < 0.0001)
{
_pictureSize = pictureSize;
_previewSize = previewSize;
break;
}
}
if (_pictureSize != null)
{
break;
}
}
if (_pictureSize == null ||
_previewSize == null)
{
_pictureSize = landscapePictureDescendingSizes.First();
_previewSize = landscapePreviewDescendingSizes.First();
}
parameters.SetPictureSize(_pictureSize.Width, _pictureSize.Height);
parameters.SetPreviewSize(_previewSize.Width, _previewSize.Height);
_camera.SetParameters(parameters);
_camera.SetPreviewTexture(_surfaceTexture);
}
if (surface != null)
{
_surfaceTexture = surface;
}
SetOrientation();
StartCamera();
}
}
catch (Exception e)
{
_cameraModule.ErrorMessage = e.ToString();
}
}
