求解，QCamera ， Windows下可以正常开启摄像头。但到了Android手机上，却不行。。。。

taotaoeta 2015-12-26 11:33:20



class asmsQRCodeWidgetData

{

public:



	asmsQRCodeWidgetData()

	{

		m_pUi = NULL;



		m_pVideoProbe = NULL;



		m_pCameraViewer = NULL;



		m_pCameraImgCapture = NULL;



		m_pCamera = NULL;

	}



	~asmsQRCodeWidgetData()

	{



	}



	QCamera				 *m_pCamera;

	QCameraViewfinder	 *m_pCameraViewer;

	QCameraImageCapture	 *m_pCameraImgCapture;

	QVideoProbe			 *m_pVideoProbe;

	Ui::asmsQRCodeWidget *m_pUi;

};





asmsQRCodeWidget::asmsQRCodeWidget(QWidget *parent /* = 0 */) :

QWidget(parent)

{



	m_pData = new asmsQRCodeWidgetData;



	m_pData->m_pUi = new Ui::asmsQRCodeWidget;



	m_pData->m_pUi->setupUi(this);

	



	m_pData->m_pCameraViewer = new QCameraViewfinder(this);



	m_pData->m_pCamera = new QCamera(this);

	m_pData->m_pCamera->setViewfinder(m_pData->m_pCameraViewer);

	m_pData->m_pCamera->setCaptureMode(QCamera::CaptureVideo);



	m_pData->m_pVideoProbe = new QVideoProbe(this);  



	if (m_pData->m_pVideoProbe->setSource(m_pData->m_pCamera)) {  

		// Probing succeeded, videoProbe->isValid() should be true.  

		connect(m_pData->m_pVideoProbe, SIGNAL(videoFrameProbed(QVideoFrame)),  

			this, SLOT(present(QVideoFrame)));  

	}  





	QGridLayout *pLayout = new QGridLayout(m_pData->m_pUi->frmCamera);

	pLayout->setContentsMargins(0, 0, 0, 0);

	pLayout->addWidget(m_pData->m_pCameraViewer);

	

	m_pData->m_pUi->frmCamera->setLayout(pLayout);



	//m_pData->m_pCameraViewer->setFixedSize(m_pData->m_pUi->frmCamera->size());



	m_pData->m_pCameraImgCapture = new QCameraImageCapture(m_pData->m_pCamera, parent);



	//connect(camera_image_capture,SIGNAL(camera_image_capture->imageCaptured(int,QImage)),this,SLOTE(displayImage(int,QImage)));



	connect(m_pData->m_pCameraImgCapture,SIGNAL(imageCaptured(int,QImage)),this,SLOT(displayImage(int,QImage)));



	

}



asmsQRCodeWidget::~asmsQRCodeWidget()

{

	

}



void asmsQRCodeWidget::startCamera()

{

	m_pData->m_pCamera->start();

	m_pData->m_pCameraViewer->show();

}