Leave Group

Leave CometChat groups with the Android SDK to stop receiving group messages and update group membership state.

AI Integration Quick Reference

// Leave a group
CometChat.leaveGroup("GUID", object : CometChat.CallbackListener<String>() {
    override fun onSuccess(message: String) { }
    override fun onError(e: CometChatException) { }
})

// Listen for member left events
CometChat.addGroupListener("LISTENER_ID", object : GroupListener() {
    override fun onGroupMemberLeft(action: Action?, leftUser: User?, leftGroup: Group?) { }
})

Leave a Group

Use leaveGroup() to stop receiving updates and messages for a group.

Java

private String GUID = "GUID";

CometChat.leaveGroup(GUID, new CometChat.CallbackListener<String>() {
  @Override
  public void onSuccess(String successMessage) {
    Log.d(TAG, successMessage);
  }

  @Override
  public void onError(CometChatException e) {
    Log.d(TAG, "Group leaving failed with exception: " + e.getMessage());
  }
});

Kotlin

val GUID:String="GUID"

CometChat.leaveGroup(GUID,object :CometChat.CallbackListener<String>(){
  override fun onSuccess(p0: String?) {
    Log.d(TAG, "Group left successfully")
  }

  override fun onError(p0: CometChatException?) {
    Log.d(TAG, "Group leaving failed with exception: " + p0?.message)
  }
})

Parameter	Description
GUID	The GUID of the group you would like to leave

Once a group is left, the user will no longer receive any updates or messages pertaining to the group.

Real-Time Group Member Left Events

When a user leaves a group, members receive a real-time event in onGroupMemberLeft() of the GroupListener class. The callback provides an Action object, the left User, and the Group.

Java

CometChat.addGroupListener(UNIQUE_LISTENER_ID, new CometChat.GroupListener() {
  @Override
  public void onGroupMemberLeft(Action action, User leftUser, Group leftGroup) {
    Log.d(TAG, "User left");
  }
});

Kotlin

CometChat.addGroupListener(UNIQUE_LISTENER_ID, object : GroupListener() {
  override fun onGroupMemberLeft(action: Action?, leftUser: User?, leftGroup: Group?) {
    Log.d(TAG, "User left")
  }
})

Missed Group Member Left Events

When fetching message history, if a member left a group the logged-in user is part of, the list will contain an Action message with these fields:

1. action - left
2. actionBy - User object containing the details of the user who left the group
3. actionFor - Group object containing the details of the group the user has left

Always remove group listeners when they’re no longer needed (e.g., in onDestroy() or when navigating away). Failing to remove listeners can cause memory leaks and duplicate event handling.

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Next Steps

Join Group

Rejoin groups or join new ones

Delete Group

Permanently delete groups you own

Retrieve Groups

Fetch list of available groups

Group Listeners

Handle real-time group events