HeadsetStateCallback

```
public interface HeadsetStateCallback
```
This interface is used to receive notifications of headset system state changes.

Since:

1.1.0

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`void`	`onHeadsetAttached()`	Called when a headset connection is detected.
`void`	`onHeadsetDetached()`	Called when a headset disconnect is detected.
`void`	`onHeadsetDisplaying()`	Called when the video input signal is detected.
`void`	`onHeadsetTemperatureError()`	Called when the headset temperature error state is detected.

- Method Detail
  - onHeadsetAttached
```
void onHeadsetAttached()
```
    Called when a headset connection is detected.
    
    Since:
    
    1.1.0
  - onHeadsetDetached
```
void onHeadsetDetached()
```
    Called when a headset disconnect is detected.
    
    Since:
    
    1.1.0
  - onHeadsetDisplaying
```
void onHeadsetDisplaying()
```
    Called when the video input signal is detected. If isHeadsetStateAcquisitionSupported of DeviceManager returns false, not called.
    
    Since:
    
    1.1.0
  - onHeadsetTemperatureError
```
void onHeadsetTemperatureError()
```
    Called when the headset temperature error state is detected. If isHeadsetStateAcquisitionSupported of DeviceManager returns false, not called.
    
    Since:
    
    1.1.0