public void Work <TState>(CameraCaptureSession session, CaptureRequest request, CaptureResult result,
ref TState captureState) where TState : class
{
Integer afState = (Integer)result.Get(CaptureResult.ControlAfState);
if (afState == null)
{
_captureStillPhoto();
}
else if (afState.IntValue() == (int)ControlAFState.FocusedLocked ||
afState.IntValue() == (int)ControlAFState.NotFocusedLocked)
{
// Auto exposure can be null on some devices
Integer aeState = (Integer)result.Get(CaptureResult.ControlAeState);
if (aeState == null || aeState.IntValue() == (int)ControlAEState.Converged)
{
captureState = (TState)CaptureStateFactory.GetCaptureState(CaptureStates.PictureTaken);
_captureStillPhoto();
}
else
{
_runPrecaptureSequence();
}
}
}
public void Work <TState>(CameraCaptureSession session, CaptureRequest request, CaptureResult result,
ref TState captureState) where TState : class
{
Integer aeState = (Integer)result.Get(CaptureResult.ControlAeState);
if (aeState == null || aeState.IntValue() == (int)ControlAEState.Precapture ||
aeState.IntValue() == (int)ControlAEState.FlashRequired)
{
captureState = (TState)CaptureStateFactory.GetCaptureState(CaptureStates.WaitingNonPrecapture);
}
}
public void Work <TState>(CameraCaptureSession session, CaptureRequest request, CaptureResult result,
ref TState captureState) where TState : class
{
Integer aeState = (Integer)result.Get(CaptureResult.ControlAeState);
if (aeState == null || aeState.IntValue() != (int)ControlAEState.Precapture)
{
captureState = (TState)CaptureStateFactory.GetCaptureState(CaptureStates.PictureTaken);
_captureStillPhoto();
}
}
protected void UnlockFocus()
{
try
{
CaptureRequestBuilder.Set(CaptureRequest.ControlAfTrigger, (int)ControlAFTrigger.Cancel);
SetAutoFlash(CaptureRequestBuilder);
CameraCaptureSession.Capture(CaptureRequestBuilder.Build(), CameraCaptureSessionCaptureHandler,
CameraBackgroundHandler);
// Accepts current CaptureState & sets it to WaitingLock
//-- Similar to:
//-- ref ICaptureState captureState = ref CameraCaptureSessionCaptureHandler.Accept(this);
//-- captureState = CaptureStateFactory.GetCaptureState(CaptureStates.WaitingLock);
CameraCaptureSessionCaptureHandler.Accept(this) = CaptureStateFactory.GetCaptureState(CaptureStates.WaitingLock);
}
catch (CameraAccessException e)
{
e.PrintStackTrace();
}
}
