/// <summary>
/// Turn the lamp off
/// </summary>
public void TurnOff()
{
if (camera == null)
{
camera = Camera.Open();
}
if (camera == null)
{
Debug.WriteLine("Camera failed to initialize");
return;
}
var p = camera.GetParameters();
var supportedFlashModes = p.SupportedFlashModes;
if (supportedFlashModes == null)
{
supportedFlashModes = new List <string>();
}
var flashMode = string.Empty;
if (supportedFlashModes.Contains(Android.Hardware.Camera.Parameters.FlashModeTorch))
{
flashMode = Android.Hardware.Camera.Parameters.FlashModeOff;
}
if (!string.IsNullOrEmpty(flashMode))
{
p.FlashMode = flashMode;
camera.SetParameters(p);
}
}
private void ToggleFlashButtonTapped(object sender, EventArgs e)
{
flashOn = !flashOn;
if (flashOn)
{
if (cameraType == CameraFacing.Back)
{
toggleFlashButton.SetBackgroundResource(Resource.Drawable.FlashButton);
cameraType = CameraFacing.Back;
camera.StopPreview();
camera.Release();
camera = Camera.Open((int)cameraType);
var parameters = camera.GetParameters();
parameters.FlashMode = Camera.Parameters.FlashModeTorch;
camera.SetParameters(parameters);
camera.SetPreviewTexture(surfaceTexture);
PrepareAndStartCamera();
}
}
else
{
toggleFlashButton.SetBackgroundResource(Resource.Drawable.NoFlashButton);
camera.StopPreview();
camera.Release();
camera = Camera.Open((int)cameraType);
var parameters = camera.GetParameters();
parameters.FlashMode = Camera.Parameters.FlashModeOff;
camera.SetParameters(parameters);
camera.SetPreviewTexture(surfaceTexture);
PrepareAndStartCamera();
}
}
private async void EnableCamera(int cameraToSwitch)
{
try
{
_camera = Camera.Open(cameraToSwitch);
_cameraId = cameraToSwitch;
SetPreviewSize(FullScreen);
SetCameraDisplayOrientation(_cameraId);
_camera.SetPreviewDisplay(_holder);
_camera.StartPreview();
}
catch (Exception ex)
{
if (ex.GetType() == typeof(Java.Lang.RuntimeException) && ex.Message == "Fail to connect to camera service")
{
Activity.Finish();
}
else
{
await AppSettings.Logger.Error(ex);
Activity.ShowAlert(new InternalException(LocalizationKeys.CameraSettingError, ex), ToastLength.Short);
}
}
}
public void OpenCamera()
{
if (MyCamera != null)
{
MyCamera.StopPreview();
MyCamera.Release();
MyCamera = null;
}
if (_cameraId >= 0)
{
Camera.GetCameraInfo(_cameraId, _cameraInfo);
MyCamera = Camera.Open(_cameraId);
Camera.Parameters param = MyCamera.GetParameters();
param.SetRotation(0);
MyCamera.SetParameters(param);
try {
if (_surfaceTexture != null)
{
MyCamera.SetPreviewTexture(_surfaceTexture);
MyCamera.StartPreview();
}
} catch (Exception) {
}
}
UpdateRotation();
}
public void OnSurfaceTextureAvailable(SurfaceTexture surface, int width, int height)
{
camera = Camera.Open((int)cameraType);
textureView.LayoutParameters = new FrameLayout.LayoutParams(width, height);
surfaceTexture = surface;
camera.SetPreviewTexture(surface);
PrepareAndStartCamera();
}
/// <summary>
/// Turn the lamp on
/// </summary>
public void TurnOn()
{
// Additional information about using the camera light here:
// http://forums.xamarin.com/discussion/24237/camera-led-or-flash
// http://stackoverflow.com/questions/5503480/use-camera-flashlight-in-android?rq=1
if (camera == null)
{
camera = Camera.Open();
}
if (camera == null)
{
Debug.WriteLine("Camera failed to initialize");
return;
}
var p = camera.GetParameters();
var supportedFlashModes = p.SupportedFlashModes;
if (supportedFlashModes == null)
{
supportedFlashModes = new List <string>();
}
var flashMode = string.Empty;
if (supportedFlashModes.Contains(Android.Hardware.Camera.Parameters.FlashModeTorch))
{
flashMode = Android.Hardware.Camera.Parameters.FlashModeTorch;
}
if (!string.IsNullOrEmpty(flashMode))
{
p.FlashMode = flashMode;
camera.SetParameters(p);
}
camera.StartPreview();
// nexus 5 fix here: http://stackoverflow.com/questions/21417332/nexus-5-4-4-2-flashlight-led-not-turning-on
try
{
camera.SetPreviewTexture(new SurfaceTexture(0));
}
catch (IOException ex)
{
// Ignore
}
}
private void OpenCamera()
{
try
{
var version = Build.VERSION.SdkInt;
if (version >= BuildVersionCodes.Gingerbread)
{
System.Diagnostics.Debug.WriteLine("Checking Number of cameras...");
var numCameras = Camera.NumberOfCameras;
var camInfo = new Camera.CameraInfo();
var found = false;
System.Diagnostics.Debug.WriteLine("Found " + numCameras + " cameras...");
var whichCamera = CameraFacing.Back;
for (var i = 0; i < numCameras; i++)
{
Camera.GetCameraInfo(i, camInfo);
if (camInfo.Facing == whichCamera)
{
System.Diagnostics.Debug.WriteLine(
"Found " + whichCamera + " Camera, opening...");
camera = Camera.Open(i);
cameraId = i;
found = true;
break;
}
}
if (!found)
{
System.Diagnostics.Debug.WriteLine(
"Finding " + whichCamera + " camera failed, opening camera 0...");
camera = Camera.Open(0);
cameraId = 0;
}
}
else
{
camera = Camera.Open();
}
}
catch (Exception ex)
{
System.Diagnostics.Debug.WriteLine($"Setup Error: {ex}");
}
}
/// <summary>
/// Events when surfacetexture is available, sets camera parameters
/// </summary>
/// <param name="surface">Surface</param>
/// <param name="width">Width</param>
/// <param name="height">Height</param>
public void OnSurfaceTextureAvailable(SurfaceTexture surface, int width, int height)
{
#pragma warning disable 618
camera = Camera.Open((int)cameraType);
var parameters = camera.GetParameters();
if (parameters.SupportedFocusModes.Contains(Camera.Parameters.FocusModeContinuousPicture))
{
parameters.FocusMode = Camera.Parameters.FocusModeContinuousPicture;
}
camera.SetParameters(parameters);
#pragma warning restore 618
textureView.LayoutParameters = new FrameLayout.LayoutParams(width, height);
camera.SetPreviewTexture(surface);
PrepareAndStartCamera();
}
private void OpenCamera(CameraFacing whichCamera)
{
try
{
var version = Build.VERSION.SdkInt;
if (version >= BuildVersionCodes.Gingerbread)
{
var numCameras = Camera.NumberOfCameras;
var camInfo = new Camera.CameraInfo();
var found = false;
for (var i = 0; i < numCameras; i++)
{
Camera.GetCameraInfo(i, camInfo);
if (camInfo.Facing == whichCamera)
{
Camera = Camera.Open(i);
_cameraId = i;
found = true;
break;
}
}
if (!found)
{
Camera = Camera.Open(0);
_cameraId = 0;
}
}
else
{
Camera = Camera.Open();
}
//if (Camera != null)
// Camera.SetPreviewCallback(_cameraEventListener);
//else
// MobileBarcodeScanner.LogWarn(MobileBarcodeScanner.TAG, "Camera is null :(");
}
catch (Exception ex)
{
ShutdownCamera();
// MobileBarcodeScanner.LogError("Setup Error: {0}", ex);
}
}
public BarcodeScannerRenderer(Context context) : base(context)
{
cameraInfo = new Camera.CameraInfo();
Camera.GetCameraInfo(0, cameraInfo);
cam = Camera.Open(0);
parameters = cam.GetParameters();
Camera.Size size = parameters.PictureSize;
cheight = size.Height;
cwidth = size.Width;
maxZoom = parameters.MaxZoom;
cam.SetPreviewCallback(this);
}
public void OnSurfaceTextureAvailable(Android.Graphics.SurfaceTexture surface, int w, int h)
{
_camera = Camera.Open();
try
{
_camera.SetPreviewTexture(surface);
_camera.SetDisplayOrientation(90);
_camera.StartPreview();
}
catch (Java.IO.IOException ex)
{
Console.WriteLine(ex.Message);
}
Camera.Parameters tmp = _camera.GetParameters();
tmp.FocusMode = Camera.Parameters.FocusModeContinuousPicture;
_camera.SetParameters(tmp);
DrawRectangle();
}
public static void Start(SurfaceTexture Surface, int Width, int Height)
{
if (Cam == null)
{
Cam = Camera.Open();
}
Camera.Parameters Parms = Cam.GetParameters();
MaxZoom = Parms.MaxZoom;
if (Parms.SupportedFocusModes.Contains(Camera.Parameters.FocusModeContinuousPicture))
{
Parms.FocusMode = Camera.Parameters.FocusModeContinuousPicture;
Cam.SetParameters(Parms);
}
Cam.SetPreviewTexture(Surface);
Cam.SetDisplayOrientation(90);
StartPreview();
SetVertical();
}
private void SwitchCameraButtonTapped(object sender, EventArgs e)
{
if (cameraType == CameraFacing.Front)
{
cameraType = CameraFacing.Back;
camera.StopPreview();
camera.Release();
camera = Camera.Open((int)cameraType);
camera.SetPreviewTexture(surfaceTexture);
PrepareAndStartCamera();
}
else
{
cameraType = CameraFacing.Front;
camera.StopPreview();
camera.Release();
camera = Camera.Open((int)cameraType);
camera.SetPreviewTexture(surfaceTexture);
PrepareAndStartCamera();
}
}
private void StartCamPrep()
{
camera = Camera.Open((int)cameraType);
camEnabled = true;
textureView.LayoutParameters = new FrameLayout.LayoutParams(width, height, GravityFlags.Center);
if (cameraType == CameraFacing.Back)
{
previousPhoto.LayoutParameters = new FrameLayout.LayoutParams(width, height, GravityFlags.Fill);
}
else
{
previousPhoto.LayoutParameters = new FrameLayout.LayoutParams(width, height, GravityFlags.Top);
}
surfaceTexture = surface;
camera.SetPreviewTexture(surface);
takePhotoButton.Enabled = true;
switchCameraButton.Enabled = true;
PrepareAndStartCamera();
}
public async Task StartScanningAsync(Action <Result> scanResultCallback, MobileBarcodeScanningOptions options = null)
{
this.callback = scanResultCallback;
this.scanningOptions = options ?? MobileBarcodeScanningOptions.Default;
lastPreviewAnalysis = DateTime.UtcNow.AddMilliseconds(this.scanningOptions.InitialDelayBeforeAnalyzingFrames);
isAnalyzing = true;
Console.WriteLine("StartScanning");
CheckCameraPermissions();
var perf = PerformanceCounter.Start();
GetExclusiveAccess();
try {
var version = Build.VERSION.SdkInt;
if (version >= BuildVersionCodes.Gingerbread)
{
Android.Util.Log.Debug(MobileBarcodeScanner.TAG, "Checking Number of cameras...");
var numCameras = Camera.NumberOfCameras;
var camInfo = new Camera.CameraInfo();
var found = false;
Android.Util.Log.Debug(MobileBarcodeScanner.TAG, "Found " + numCameras + " cameras...");
var whichCamera = CameraFacing.Back;
if (this.scanningOptions.UseFrontCameraIfAvailable.HasValue && this.scanningOptions.UseFrontCameraIfAvailable.Value)
{
whichCamera = CameraFacing.Front;
}
for (int i = 0; i < numCameras; i++)
{
Camera.GetCameraInfo(i, camInfo);
if (camInfo.Facing == whichCamera)
{
Android.Util.Log.Debug(MobileBarcodeScanner.TAG, "Found " + whichCamera + " Camera, opening...");
camera = Camera.Open(i);
cameraId = i;
found = true;
break;
}
}
if (!found)
{
Android.Util.Log.Debug(MobileBarcodeScanner.TAG, "Finding " + whichCamera + " camera failed, opening camera 0...");
camera = Camera.Open(0);
cameraId = 0;
}
}
else
{
camera = Camera.Open();
}
if (camera == null)
{
Android.Util.Log.Debug(MobileBarcodeScanner.TAG, "Camera is null :(");
}
camera.SetPreviewCallback(this);
} catch (Exception ex) {
ShutdownCamera();
Console.WriteLine("Setup Error: " + ex);
}
PerformanceCounter.Stop(perf, "Camera took {0}ms");
if (!surfaceChanged)
{
await waitSurface.WaitAsync();
}
if (camera == null)
{
return;
}
perf = PerformanceCounter.Start();
var parameters = camera.GetParameters();
parameters.PreviewFormat = ImageFormatType.Nv21;
var availableResolutions = new List <CameraResolution> ();
foreach (var sps in parameters.SupportedPreviewSizes)
{
availableResolutions.Add(new CameraResolution {
Width = sps.Width,
Height = sps.Height
});
}
// Try and get a desired resolution from the options selector
var resolution = scanningOptions.GetResolution(availableResolutions);
// If the user did not specify a resolution, let's try and find a suitable one
if (resolution == null)
{
// Loop through all supported sizes
foreach (var sps in parameters.SupportedPreviewSizes)
{
// Find one that's >= 640x360 but <= 1000x1000
// This will likely pick the *smallest* size in that range, which should be fine
if (sps.Width >= 640 && sps.Width <= 1000 && sps.Height >= 360 && sps.Height <= 1000)
{
resolution = new CameraResolution {
Width = sps.Width,
Height = sps.Height
};
break;
}
}
}
// Google Glass requires this fix to display the camera output correctly
if (Build.Model.Contains("Glass"))
{
resolution = new CameraResolution {
Width = 640,
Height = 360
};
// Glass requires 30fps
parameters.SetPreviewFpsRange(30000, 30000);
}
// Hopefully a resolution was selected at some point
if (resolution != null)
{
Android.Util.Log.Debug(MobileBarcodeScanner.TAG, "Selected Resolution: " + resolution.Width + "x" + resolution.Height);
parameters.SetPreviewSize(resolution.Width, resolution.Height);
}
camera.SetParameters(parameters);
SetCameraDisplayOrientation(this.activity);
camera.SetPreviewDisplay(this.Holder);
camera.StartPreview();
PerformanceCounter.Stop(perf, "SurfaceChanged took {0}ms");
AutoFocus();
}
private void OpenCamera()
{
try
{
var version = Build.VERSION.SdkInt;
if (version >= BuildVersionCodes.Gingerbread)
{
Android.Util.Log.Debug(MobileBarcodeScanner.TAG, "Checking Number of cameras...");
var numCameras = Camera.NumberOfCameras;
var camInfo = new Camera.CameraInfo();
var found = false;
Android.Util.Log.Debug(MobileBarcodeScanner.TAG, "Found " + numCameras + " cameras...");
var whichCamera = CameraFacing.Back;
if (_scannerHost.ScanningOptions.UseFrontCameraIfAvailable.HasValue &&
_scannerHost.ScanningOptions.UseFrontCameraIfAvailable.Value)
{
whichCamera = CameraFacing.Front;
}
for (var i = 0; i < numCameras; i++)
{
Camera.GetCameraInfo(i, camInfo);
if (camInfo.Facing == whichCamera)
{
Android.Util.Log.Debug(MobileBarcodeScanner.TAG,
"Found " + whichCamera + " Camera, opening...");
Camera = Camera.Open(i);
_cameraId = i;
found = true;
break;
}
}
if (!found)
{
Android.Util.Log.Debug(MobileBarcodeScanner.TAG,
"Finding " + whichCamera + " camera failed, opening camera 0...");
Camera = Camera.Open(0);
_cameraId = 0;
}
}
else
{
Camera = Camera.Open();
}
//if (Camera != null)
// Camera.SetPreviewCallback(_cameraEventListener);
//else
// MobileBarcodeScanner.LogWarn(MobileBarcodeScanner.TAG, "Camera is null :(");
}
catch (Exception ex)
{
ShutdownCamera();
MobileBarcodeScanner.LogError("Setup Error: {0}", ex);
}
}
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();
}
}
void OnSurfaceCreated()
{
surfaceCreated = true;
lastPreviewAnalysis = DateTime.UtcNow.AddMilliseconds(this.scanningOptions.InitialDelayBeforeAnalyzingFrames);
isAnalyzing = true;
Console.WriteLine("StartScanning");
CheckCameraPermissions();
var perf = PerformanceCounter.Start();
GetExclusiveAccess();
try {
var version = Build.VERSION.SdkInt;
if (version >= BuildVersionCodes.Gingerbread)
{
Android.Util.Log.Debug(MobileBarcodeScanner.TAG, "Checking Number of cameras...");
var numCameras = Camera.NumberOfCameras;
var camInfo = new Camera.CameraInfo();
var found = false;
Android.Util.Log.Debug(MobileBarcodeScanner.TAG, "Found " + numCameras + " cameras...");
var whichCamera = CameraFacing.Back;
if (this.scanningOptions.UseFrontCameraIfAvailable.HasValue && this.scanningOptions.UseFrontCameraIfAvailable.Value)
{
whichCamera = CameraFacing.Front;
}
for (int i = 0; i < numCameras; i++)
{
Camera.GetCameraInfo(i, camInfo);
if (camInfo.Facing == whichCamera)
{
Android.Util.Log.Debug(MobileBarcodeScanner.TAG, "Found " + whichCamera + " Camera, opening...");
camera = Camera.Open(i);
cameraId = i;
found = true;
break;
}
}
if (!found)
{
Android.Util.Log.Debug(MobileBarcodeScanner.TAG, "Finding " + whichCamera + " camera failed, opening camera 0...");
camera = Camera.Open(0);
cameraId = 0;
}
}
else
{
camera = Camera.Open();
}
if (camera == null)
{
Android.Util.Log.Debug(MobileBarcodeScanner.TAG, "Camera is null :(");
}
camera.SetPreviewCallback(this);
} catch (Exception ex) {
ShutdownCamera();
Console.WriteLine("Setup Error: " + ex);
}
PerformanceCounter.Stop(perf, "Camera took {0}ms");
}
protected override void OnResume()
{
base.OnResume();
camera = Camera.Open();
}
async Task SetupCamera()
{
if (camera != null)
{
return;
}
await tcsSurfaceReady.Task;
lastPreviewAnalysis = DateTime.UtcNow.AddMilliseconds(this.scanningOptions.InitialDelayBeforeAnalyzingFrames);
isAnalyzing = true;
CheckCameraPermissions();
var perf = PerformanceCounter.Start();
GetExclusiveAccess();
try {
var version = Build.VERSION.SdkInt;
if (version >= BuildVersionCodes.Gingerbread)
{
Android.Util.Log.Debug(MobileBarcodeScanner.TAG, "Checking Number of cameras...");
var numCameras = Camera.NumberOfCameras;
var camInfo = new Camera.CameraInfo();
var found = false;
Android.Util.Log.Debug(MobileBarcodeScanner.TAG, "Found " + numCameras + " cameras...");
var whichCamera = CameraFacing.Back;
if (this.scanningOptions.UseFrontCameraIfAvailable.HasValue && this.scanningOptions.UseFrontCameraIfAvailable.Value)
{
whichCamera = CameraFacing.Front;
}
for (int i = 0; i < numCameras; i++)
{
Camera.GetCameraInfo(i, camInfo);
if (camInfo.Facing == whichCamera)
{
Android.Util.Log.Debug(MobileBarcodeScanner.TAG, "Found " + whichCamera + " Camera, opening...");
camera = Camera.Open(i);
cameraId = i;
found = true;
break;
}
}
if (!found)
{
Android.Util.Log.Debug(MobileBarcodeScanner.TAG, "Finding " + whichCamera + " camera failed, opening camera 0...");
camera = Camera.Open(0);
cameraId = 0;
}
}
else
{
camera = Camera.Open();
}
if (camera != null)
{
camera.SetPreviewCallback(this);
}
else
{
MobileBarcodeScanner.LogWarn(MobileBarcodeScanner.TAG, "Camera is null :(");
return;
}
} catch (Exception ex) {
ShutdownCamera();
MobileBarcodeScanner.LogError("Setup Error: {0}", ex);
return;
}
PerformanceCounter.Stop(perf, "Setup Camera took {0}ms");
perf = PerformanceCounter.Start();
var parameters = camera.GetParameters();
parameters.PreviewFormat = ImageFormatType.Nv21;
// First try continuous video, then auto focus, then fixed
var supportedFocusModes = parameters.SupportedFocusModes;
if (Build.VERSION.SdkInt >= BuildVersionCodes.IceCreamSandwich &&
supportedFocusModes.Contains(Camera.Parameters.FocusModeContinuousPicture))
{
parameters.FocusMode = Camera.Parameters.FocusModeContinuousPicture;
}
else if (supportedFocusModes.Contains(Camera.Parameters.FocusModeContinuousVideo))
{
parameters.FocusMode = Camera.Parameters.FocusModeContinuousVideo;
}
else if (supportedFocusModes.Contains(Camera.Parameters.FocusModeAuto))
{
parameters.FocusMode = Camera.Parameters.FocusModeAuto;
}
else if (supportedFocusModes.Contains(Camera.Parameters.FocusModeFixed))
{
parameters.FocusMode = Camera.Parameters.FocusModeFixed;
}
var selectedFps = parameters.SupportedPreviewFpsRange.FirstOrDefault();
if (selectedFps != null)
{
// This will make sure we select a range with the lowest minimum FPS
// and maximum FPS which still has the lowest minimum
// This should help maximize performance / support for hardware
foreach (var fpsRange in parameters.SupportedPreviewFpsRange)
{
if (fpsRange [0] <= selectedFps [0] &&
fpsRange [1] > selectedFps [1])
{
selectedFps = fpsRange;
}
}
parameters.SetPreviewFpsRange(selectedFps [0], selectedFps [1]);
}
var availableResolutions = new List <CameraResolution> ();
foreach (var sps in parameters.SupportedPreviewSizes)
{
availableResolutions.Add(new CameraResolution {
Width = sps.Width,
Height = sps.Height
});
}
// Try and get a desired resolution from the options selector
var resolution = scanningOptions.GetResolution(availableResolutions);
// If the user did not specify a resolution, let's try and find a suitable one
if (resolution == null)
{
// Loop through all supported sizes
foreach (var sps in parameters.SupportedPreviewSizes)
{
// Find one that's >= 640x360 but <= 1000x1000
// This will likely pick the *smallest* size in that range, which should be fine
if (sps.Width >= 640 && sps.Width <= 1000 && sps.Height >= 360 && sps.Height <= 1000)
{
resolution = new CameraResolution {
Width = sps.Width,
Height = sps.Height
};
break;
}
}
}
// Google Glass requires this fix to display the camera output correctly
if (Build.Model.Contains("Glass"))
{
resolution = new CameraResolution {
Width = 640,
Height = 360
};
// Glass requires 30fps
parameters.SetPreviewFpsRange(30000, 30000);
}
// Hopefully a resolution was selected at some point
if (resolution != null)
{
Android.Util.Log.Debug(MobileBarcodeScanner.TAG, "Selected Resolution: " + resolution.Width + "x" + resolution.Height);
parameters.SetPreviewSize(resolution.Width, resolution.Height);
}
camera.SetParameters(parameters);
SetCameraDisplayOrientation(this.activity);
camera.SetPreviewDisplay(this.Holder);
camera.StartPreview();
PerformanceCounter.Stop(perf, "Setup Camera Parameters took {0}ms");
// Docs suggest if Auto or Macro modes, we should invoke AutoFocus at least once
var currentFocusMode = camera.GetParameters().FocusMode;
if (currentFocusMode == Camera.Parameters.FocusModeAuto ||
currentFocusMode == Camera.Parameters.FocusModeMacro)
{
AutoFocus();
}
}
