ZXing改横屏识别为竖屏识别
解决方法：
1.在DecodeHandler.java中，修改decode方法
PlanarYUVLuminanceSource source = CameraManager.get().buildLuminanceSource(data, width, height);
为
byte[] rotatedData = new byte[data.length];
for (int y = 0; y < height; y++) {
for (int x = 0; x < width; x++)
rotatedData[x * height + height - y - 1] = data[x + y * width];
}
int tmp = width; // Here we are swapping, that's the difference to #11
width = height;
height = tmp;
PlanarYUVLuminanceSource source = CameraManager.get().buildLuminanceSource(rotatedData, width, height);
2.在CameraManager.java中，注释代码：
// rect.left = rect.left * cameraResolution.x / screenResolution.x;
// rect.right = rect.right * cameraResolution.x / screenResolution.x;
// rect.top = rect.top * cameraResolution.y / screenResolution.y;
// rect.bottom = rect.bottom * cameraResolution.y / screenResolution.y;
修改为
rect.left = rect.left * cameraResolution.y / screenResolution.x;
rect.right = rect.right * cameraResolution.y / screenResolution.x;
rect.top = rect.top * cameraResolution.x / screenResolution.y;
rect.bottom = rect.bottom * cameraResolution.x / screenResolution.y;
3.在CameraConfigurationManager.java中，在setDesiredCameraParameters方法中添加一句
camera.setDisplayOrientation(90);
4.在AndroidManifest.xml中，把Activity的属性android:screenOrientation="landscape"
改为
android:screenOrientation="portrait"
编译运行即可！
参考：
http://code.google.com/p/zxing/issues/detail?id=178#c46
代码：
https://github.com/pplante/zxing-android
