zxing--optimize

optimize scan efficiency

适配屏幕

1.

    @Override
    public void surfaceChanged(SurfaceHolder holder, int format, int width,
                               int height) {
        LogUtils.logInfo("要显示的范围 " + width + " " + height);
        if (ViewfinderView.requestHeight == 0 || ViewfinderView.requestHeight != height) {
            ViewfinderView.requestHeight = height;
            initCamera(holder);
        }
    }

2.

com.thorao.powzxing.zxing.camera.CameraConfigurationManager#initFromCameraParameters

screenResolution = new Point(display.getWidth(), ViewfinderView.requestHeight==0? display.getHeight():ViewfinderView.requestHeight);

设置采样率

inSampleSize(采样率)

尝试多次不同的采样率来进行Decode，如 1,2,4,8,16,32