Android 4.0.4 开启前置摄像头失败？？
按照网上的教程，使用Camera 打开前置摄像头，却始终失败，求解？

private void initCamera(){

Camera.CameraInfo cameraInfo = new Camera.CameraInfo(); 

cameraCount = Camera.getNumberOfCameras(); // get cameras number   

System.out.println(cameraCount);

for ( int camIdx = 0; camIdx < cameraCount;camIdx++ ) 
{   
Camera.getCameraInfo( camIdx, cameraInfo ); // get camerainfo   

if ( cameraInfo.facing ==   cameraInfo.CAMERA_FACING_FRONT )
{  
// 代表摄像头的方位，目前有定义值两个分别为CAMERA_FACING_FRONT前置和CAMERA_FACING_BACK后置   
try {   
camera = Camera.open(camIdx);   
} 
catch (RuntimeException e) 
{   
e.printStackTrace();   
}   
} 
} 
camera.unlock(); 
}

android?前置摄像头
[解决办法]
用SurfaceView 啊， 网上代码一大堆。