1.修改manifest文件,将CaptureActivity设为portrait
android:screenOrientation="portrait"
2.在DecodeHandler.java文件中,找到decode(byte[],int,int)方法,在buildLuminanceSource调用前,加上如下:
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;
width = height;
height = tmp;
data = rotatedData;
3.在CameraManager.java中找到getFramingRectInPreview()方法, 替换相应代码
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;
4.在CameraConfigurationManager.java里找到setDesiredCameraParameters()方法,在
camera.setParameters(parameters)之前加入
camera.setDisplayOrientation(90);
5.这一步最关键了,之前有人说是去掉一部分代码,这样会导致扫描的东西变扁。正确的方法应该为:在CameraConfigurationManager.java里找到initFromCameraParameters(Camera camera)方法,改为
Camera.Parameters parameters = camera.getParameters();
WindowManager manager = (WindowManager) context .getSystemService(Context.WINDOW_SERVICE);
Display display = manager.getDefaultDisplay();
int width = display.getWidth();
int height = display.getHeight();
if (width < height) {
int temp = width;
width = height;
height = temp;
}
screenResolution = new Point(height, width);
cameraResolution = findBestPreviewSizeValue(parameters, new Point(width, height));
把这个方法内容全部替换成以上代码就OK啦,大功告成!
转自 http://blog.csdn.net/bxs412/article/details/8616054