protected override void OnCreate(Bundle bundle)
{
base.OnCreate(bundle);
if (!SetUpCameraOutputs())
{
return;
}
this.mOnYuvImageAvailableListener.OnImageProcessed += (sender, mat) =>
{
SetImage(mat);
};
var activity = this;
CameraManager manager = (CameraManager)activity.GetSystemService(Context.CameraService);
mStateCallback = new CameraStateListener(this);
try
{
Handler backgroundHandler;
var list = manager.GetCameraIdList();
var cameraId = list[0];
backgroundHandler = mBackgroundHandler;
// Attempt to open the camera. mStateCallback will be called on the background handler's
// thread when this succeeds or fails.
manager.OpenCamera(cameraId, mStateCallback, backgroundHandler);
}
catch (CameraAccessException e)
{
e.PrintStackTrace();
}
catch (Java.Lang.InterruptedException e)
{
throw new Java.Lang.RuntimeException("Interrupted while trying to lock camera opening.", e);
}
this.OnButtonClick += (sender, args) =>
{
CreateCaptureSession();
};
}
public void StartCamera()
{
//アプリ起動時に,表示領域が未作成の前にStartCameraが実行されることを防ぐ
if (this.SurfaceTexture == null)
{
return;
}
StartBackgroundThread();
this._cameraManager = (CameraManager)Android.App.Application.Context.GetSystemService(Context.CameraService);
var cameraIdList = this._cameraManager.GetCameraIdList();
CameraCharacteristics cameraCharacteristics = null;
//指定のカメラのidを取得する
//フロント,バックのカメラidの取得についてはこちらを参考
//https://bellsoft.jp/blog/system/detail_538
this._cameraId = cameraIdList.FirstOrDefault(cId =>
{
cameraCharacteristics = _cameraManager.GetCameraCharacteristics(cId);
var lensFacing = (int)cameraCharacteristics.Get(CameraCharacteristics.LensFacing);
if (lensFacing == (int)this.CameraOption)
{
return(true);
}
return(false);
});
Android.Hardware.Camera2.Params.StreamConfigurationMap scm = (Android.Hardware.Camera2.Params.StreamConfigurationMap)cameraCharacteristics.Get(CameraCharacteristics.ScalerStreamConfigurationMap);
this.PreviewSize = scm.GetOutputSizes((int)ImageFormatType.Jpeg)[0];
this.SensorOrientation = (int)cameraCharacteristics.Get(CameraCharacteristics.SensorOrientation);//Back:4032*3024,Front:3264*2448
//ImageReaderの設定
this.ImageReader = ImageReader.NewInstance(480, 640, ImageFormatType.Jpeg, 1);
this.ImageReader.SetOnImageAvailableListener(this.ImageAvailableListener, this.BackgroundHandler);
this._cameraStateListener = new CameraStateListener(this);
_cameraManager.OpenCamera(_cameraId, this._cameraStateListener, null);
}
internal Camera2Controller(PhotoCaptureView photoCaptureView)
: base(photoCaptureView)
{
_captureCallback = new CaptureCallback(this);
_stateCallback = new CameraStateCallback(this);
_imageAvailableListener = new OnImageAvailableListener(this);
_captureStateCallback = new CaptureStateCallback(OnConfigured);
}
/// <summary>
/// Constructor.
/// </summary>
/// <param name="activity">Activity.</param>
public CameraHelper(Activity activity)
{
mActivity = activity;
mStateCallback = new CameraDeviceStateCallback(this);
StartCameraThread();
}