二维码摄像横竖屏切换
来源:互联网 发布:车载电子狗软件 编辑:程序博客网 时间:2024/05/21 19:41
转载:http://blog.csdn.net/zhouli_csdn/article/details/49930323
1.修改manifest文件,将CaptureActivity的screenOrentatino设为portrait。
2.摄像头调整为竖向在CameraConfigurationManager类中添加如下方法:
- protected void setDisplayOrientation(Camera camera, int angle) {//mycode
-
- Method downPolymorphic;
-
- try {
-
- downPolymorphic = camera.getClass().getMethod("setDisplayOrientation", new Class[] { int.class });
-
- if (downPolymorphic != null)
-
- downPolymorphic.invoke(camera, new Object[] { angle });
-
- } catch (Exception e1) {
- e1.printStackTrace();
- }
- }
在CameraConfigurationManager的setDesiredCameraParameters方法中调用此方法。setDisplayOrientation(camera, 90);//mycode
3.CameraConfigurationManager类的initFromCameraParameters方法中注释一下代码:
- //这段代码用于横屏的时候+
- /*if (width < height) {
- Log.i(TAG, "Display reports portrait orientation; assuming this is incorrect");
- int temp = width;
- width = height;
- height = temp;
- }*/
4.CameraManager类的getFramingRectInPreview修改如下代码;
- //横屏模式
- /*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;*/
-
- //竖屏模式mycode
- 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;
5.CameraManager类的getFramingRect方法修改:- //用于横屏时候的扫描mycode
- //int width = findDesiredDimensionInRange(screenResolution.x, MIN_FRAME_WIDTH, MAX_FRAME_WIDTH);
- //int height = findDesiredDimensionInRange(screenResolution.y, MIN_FRAME_HEIGHT, MAX_FRAME_HEIGHT);
-
- //用于竖屏的扫描
- int height = findDesiredDimensionInRange(screenResolution.x, MIN_FRAME_WIDTH, MAX_FRAME_WIDTH);
- int width = findDesiredDimensionInRange(screenResolution.y, MIN_FRAME_HEIGHT, MAX_FRAME_HEIGHT);
6.DecodeHandler修改decode方法在
- PlanarYUVLuminanceSource source = activity.getCameraManager().buildLuminanceSource(data, width, height);之前加入一下代码
- //mycode
- 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;
- data = rotatedData;
-
- PlanarYUVLuminanceSource source = activity.getCameraManager().buildLuminanceSource(data, width, height);
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