HMSPreviewListener

All Implemented Interfaces:

live.hms.video.sdk.IErrorListener , live.hms.video.sdk.RequestPermissionInterface
```
public interface HMSPreviewListener
 implements IErrorListener, RequestPermissionInterface
                    
```
Information about the preview request. May contain success or failure.

Nested Class Summary

Nested Classes
Modifier and Type	Class	Description

Field Summary

Fields
Modifier and Type	Field	Description

Constructor Summary

Constructors
Constructor	Description

Enum Constant Summary

Enum Constants
Enum Constant	Description

Method Summary

Modifier and Type	Method	Description
`abstract Unit`	`onPreview(HMSRoom room, Array<HMSTrack> localTracks)`	If the generation of a preview was successful, information about the room joined and the tracks will be sent.
`abstract Unit`	`onRoomUpdate(HMSRoomUpdate type, HMSRoom hmsRoom)`	Called if there is any update related to the HMSRoom
`abstract Unit`	`onPeerUpdate(HMSPeerUpdate type, HMSPeer peer)`	Called if there is any update related to the HMSPeer
`Unit`	`peerListUpdated(ArrayList<HMSPeer> addedPeers, ArrayList<HMSPeer> removedPeers)`	Called when new peers are added to peerlist.

Methods inherited from class live.hms.video.sdk.IErrorListener
onError
Methods inherited from class live.hms.video.sdk.RequestPermissionInterface
onPermissionsRequested
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
- Method Detail
  - onPreview
```
 abstract Unit onPreview(HMSRoom room, Array<HMSTrack> localTracks)
```
    If the generation of a preview was successful, information about the room joined and the tracks will be sent.
    
    Parameters:
    
    room - details of the room the peer requested to join.
    
    localTracks - all local video and audio tracks that the peer might want to review before joining.
  - onRoomUpdate
```
 abstract Unit onRoomUpdate(HMSRoomUpdate type, HMSRoom hmsRoom)
```
    Called if there is any update related to the HMSRoom
    
    Parameters:
    
    type - specifies the type of update
    
    hmsRoom - The updated HMSRoom object
  - onPeerUpdate
```
 abstract Unit onPeerUpdate(HMSPeerUpdate type, HMSPeer peer)
```
    Called if there is any update related to the HMSPeer
    
    Parameters:
    
    type - specifies the type of update of the peer
    
    peer - is the newly updated HMSPeer object
  - peerListUpdated
```
 Unit peerListUpdated(ArrayList<HMSPeer> addedPeers, ArrayList<HMSPeer> removedPeers)
```
    Called when new peers are added to peerlist. Use this to show the list of peers on UI This is called with the intial set of peer on joining a room as well as with update list of peers if some peer joins or leaves the room
    
    Parameters:
    
    addedPeers - List of HMSPeer to be added to the list
    
    removedPeers - List of HMSPeer to be removed from the list