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我正在使用Zbar阅读QRCode.我将这个https://github.com/DushyanthMaguluru/ZBarScanner示例用于我的活动.问题是如何在FrameLayout上显示cameraView？

编辑:

        @Override
    public void onCreate(Bundle savedInstanceState)
    {
        super.onCreate(savedInstanceState);


    setContentView(R.layout.main);
    //setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);
    mCamera = getCameraInstance();

    if(!isCameraAvailable())
    {
        cancelRequest();
        return;
    }

    requestWindowFeature(Window.FEATURE_NO_TITLE);
    getWindow().addFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN);

    mAutoFocusHandler = new Handler();

    setupScanner();

    mPreview = new CameraPreview(this, this, autoFocusCB);
    //setContentView(mPreview);
    FrameLayout preview = (FrameLayout)findViewById(R.id.cameraPreview);
    preview.addView(mPreview);
}
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