VisionEventsListener

```
public VisionEventsListener
```
Interface that user’s custom object should conform to in order to receive events from class VisionManager.
Callbacks will not be called until Camera.calibrationProgress value reaches 1.0f due to highly imprecise results.
Interface methods are called one by one followed by VisionEventsListener.onUpdateCompleted call which denotes the end of the iteration.
NOTE: all delegate methods are called on a background thread.

See Also:

class VisionManager, VisionEventsListener.onUpdateCompleted

Nested Class Summary

Nested Classes
Modifier and Type	Interface and Description
`static class`	`VisionEventsListener.DefaultImpls` Interface that user’s custom object should conform to in order to receive events from `class VisionManager`.

Method Summary

All Methods Instance Methods Default Methods
Modifier and Type	Method and Description
`void`	`onAuthorizationStatusUpdated(AuthorizationStatus authorizationStatus)` Authorization status was updated. `class VisionManager` may not emit events unless it has successfully authorized.
`void`	`onCameraUpdated(Camera camera)` Camera state was updated. Use this method to obtain current values of calibration progress, frame size, and other camera parameters from `class Camera` instance.
`void`	`onCountryUpdated(Country country)` Country was updated.
`void`	`onFrameDetectionsUpdated(FrameDetections frameDetections)` Detections were updated.
`void`	`onFrameSegmentationUpdated(FrameSegmentation frameSegmentation)` Segmentation mask was updated.
`void`	`onFrameSignClassificationsUpdated(FrameSignClassifications frameSignClassifications)` Classified signs were updated.
`void`	`onRoadDescriptionUpdated(RoadDescription roadDescription)` Road description was updated. Road description parameters reach maximum accuracy when `class Camera` is calibrated and may not be produced until then.
`void`	`onUpdateCompleted()` This method is called after the whole update iteration is completed. This means that all the data that came from delegate methods is in sync. This method is an appropriate place to work with different values emitted from `class VisionManager` during current iteration.
`void`	`onVehicleStateUpdated(VehicleState vehicleState)` Vehicle state was updated.
`void`	`onWorldDescriptionUpdated(WorldDescription worldDescription)` World description was updated. World description parameters reach maximum accuracy when `class Camera` is calibrated and may not be produced until then.

- Method Detail
  - onAuthorizationStatusUpdated
```
void onAuthorizationStatusUpdated(AuthorizationStatus authorizationStatus)
```
    Authorization status was updated. class VisionManager may not emit events unless it has successfully authorized.
    
    See Also:
    
    class VisionManager
  - onFrameSegmentationUpdated
```
void onFrameSegmentationUpdated(FrameSegmentation frameSegmentation)
```
    Segmentation mask was updated.
  - onFrameDetectionsUpdated
```
void onFrameDetectionsUpdated(FrameDetections frameDetections)
```
    Detections were updated.
  - onFrameSignClassificationsUpdated
```
void onFrameSignClassificationsUpdated(FrameSignClassifications frameSignClassifications)
```
    Classified signs were updated.
  - onRoadDescriptionUpdated
```
void onRoadDescriptionUpdated(RoadDescription roadDescription)
```
    Road description was updated. Road description parameters reach maximum accuracy when class Camera is calibrated and may not be produced until then.
    
    See Also:
    
    class Camera
  - onWorldDescriptionUpdated
```
void onWorldDescriptionUpdated(WorldDescription worldDescription)
```
    World description was updated. World description parameters reach maximum accuracy when class Camera is calibrated and may not be produced until then.
    
    See Also:
    
    class Camera
  - onVehicleStateUpdated
```
void onVehicleStateUpdated(VehicleState vehicleState)
```
    Vehicle state was updated.
  - onCameraUpdated
```
void onCameraUpdated(Camera camera)
```
    Camera state was updated. Use this method to obtain current values of calibration progress, frame size, and other camera parameters from class Camera instance.
    
    See Also:
    
    class Camera
  - onCountryUpdated
```
void onCountryUpdated(Country country)
```
    Country was updated.
  - onUpdateCompleted
```
void onUpdateCompleted()
```
    This method is called after the whole update iteration is completed. This means that all the data that came from delegate methods is in sync. This method is an appropriate place to work with different values emitted from class VisionManager during current iteration.
    Note: Performance of this function is critical since class VisionManager blocks until the method execution is finished.
    
    See Also:
    
    class VisionManager, class VisionManager

Interface VisionEventsListener

Nested Class Summary

Method Summary

Method Detail

onAuthorizationStatusUpdated

onFrameSegmentationUpdated

onFrameDetectionsUpdated

onFrameSignClassificationsUpdated

onRoadDescriptionUpdated

onWorldDescriptionUpdated

onVehicleStateUpdated

onCameraUpdated

onCountryUpdated

onUpdateCompleted