如何在Android中设置摄像机的方向以获取要拍摄的图像

Question

我正在使用Camera2Api

1. 我可以用这个捕获前置摄像头图像但是Image是 90度导向。
2. 如何设置参数以便我得到一个合适的图像

private void openCamera() {
        CameraManager manager = (CameraManager) getActivity().getSystemService(Context.CAMERA_SERVICE);
        Log.e(TAG, "is camera open");
        try {
            cameraId = manager.getCameraIdList()[1];
            CameraCharacteristics characteristics = manager.getCameraCharacteristics(cameraId);
            StreamConfigurationMap map = characteristics.get(CameraCharacteristics.SCALER_STREAM_CONFIGURATION_MAP);
            assert map != null;
            imageDimension = map.getOutputSizes(SurfaceTexture.class)[0];
            // Add permission for camera and let user grant the permission
            if (ActivityCompat.checkSelfPermission(getActivity(), Manifest.permission.CAMERA) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(getActivity(), Manifest.permission.WRITE_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED) {
                ActivityCompat.requestPermissions(getActivity(), new String[]{Manifest.permission.CAMERA, Manifest.permission.WRITE_EXTERNAL_STORAGE}, REQUEST_CAMERA_PERMISSION);
                return;
            }
            manager.openCamera(cameraId, stateCallback, null);
        } catch (CameraAccessException e) {
            e.printStackTrace();
        }
        Log.e(TAG, "openCamera X");
    }

Answer 1

请设置SENSOR_ORIENTATION选项

@Bean
public ServletRegistrationBean messageDispatcherServlet(ApplicationContext applicationContext) {
      MessageDispatcherServlet servlet = new MessageDispatcherServlet();
      servlet.setApplicationContext(applicationContext);
      servlet.setTransformWsdlLocations(true);
      return new ServletRegistrationBean(servlet, "/ws/*");
}