Android(安卓)ZXing改横屏识别为竖屏识别[转]
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"
更多相关文章
- Android(安卓)NestedScrollView嵌套RecyclerView的问题
- 我的Android进阶之旅------>Android中android:visibility 属性VI
- Android多方案实现定时器功能
- android:scrollbars属性和弹出键盘的问题
- Android(安卓)动态代理以及利用动态代理实现 ServiceHook
- Android(安卓)Looper和Handler分析
- android:duplicateParentState属性解释
- android消息机制(handler运行机制)解析
- android studio 快捷键修改