FeatureService (wear-services 3.0.0 API)

```
public interface FeatureService
```
This service allows Features to control the lifecycle of other Features.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`void`	`addUpdateListener(UpdateListener listener)`	Adds the given `UpdateListener` to the list of listeners that are notified when an app has been updated on the device.
`byte[]`	`install(java.io.File featureFile)`	Installs the feature of the given feature file.
`void`	`removeUpdateListener(UpdateListener listener)`	Removes the given `UpdateListener` from the list of listeners that are notified when an app has been updated on the device.
`void`	`uninstall(byte[] featureUID)`	Uninstalls the feature identified by the given UUID.

- Method Detail
  - install
```
byte[] install(java.io.File featureFile)
```
    Installs the feature of the given feature file.
    
    Parameters:
    
    featureFile - a feature file
    
    Returns:
    
    the UUID of the installed feature
  - uninstall
```
void uninstall(byte[] featureUID)
```
    Uninstalls the feature identified by the given UUID.
    
    Parameters:
    
    featureUID - the UUID of an installed feature
  - addUpdateListener
```
void addUpdateListener(UpdateListener listener)
```
    Adds the given UpdateListener to the list of listeners that are notified when an app has been updated on the device.
    
    Parameters:
    
    listener - the new listener to add
  - removeUpdateListener
```
void removeUpdateListener(UpdateListener listener)
```
    Removes the given UpdateListener from the list of listeners that are notified when an app has been updated on the device.
    Does nothing if the listener is not registered.
    
    Parameters:
    
    listener - the listener to be removed