GroupChannelCollection instance allows you to swiftly create a channel list view that remains up to date on all channel-related events. This page explains how to draw a view using the collection.
You can create a
GroupChannelCollection instance through the
First, create a
GroupChannelListQuery instance through the
SendbirdChat.createMyGroupChannelListQuery() method and its setters. This determines which channel to include in the channel list and how to list channels in order.
Once the collection is created, you should call
GroupChannelCollection instance retrieves more channels to display in the view through the
Whenever a scroll reaches the bottom of the channel list view, the
loadMore() method should be called and the
hasMore method first checks if there are more channels to load. If so,
loadMore(completionHandler:) fetches them.
loadMore(completionHandler:) method should also be called after you've created a
GroupChannelCollectionDelegate methods to determine how the client app reacts to channel-related events.
This is called whenever a new channel is created as a real-time event or changelog sync is prompted when the client app is back online.
The following table shows possible cases where each event handler can be called.
- A new group channel is created as a real-time event.
- The channel information that is included in the user's current chat view is updated as a real-time event.
- A group channel is deleted as a real-time event.
dispose() method should be called when you need to clear the current channel list view.