| Interface | Description | 
|---|---|
| ApplicationListener | The listener that is notified when an application instance is
 terminated. | 
| DownloadListener | The listener that is notified of the state of resources being
 downloaded by a ResourceTracker. | 
| Class | Description | 
|---|---|
| ApplicationEvent | This event is sent when an application is terminated. | 
| DownloadEvent | This event is sent during the launch of an
 application. |