com.sendbird.android.handlers

Interface MessageCollectionHandler

public interface MessageCollectionHandler

An interface used in MessageCollection.

Since:

3.1.0

See Also:

., .

Method Summary

Modifier and Type	Method and Description
void	onChannelDeleted(GroupChannelContext context, java.lang.String channelUrl) Called when the GroupChannel this MessageCollection holds is deleted.
void	onChannelUpdated(GroupChannelContext context, GroupChannel channel) Called when there's a change in the GroupChannel this MessageCollection holds.
void	onHugeGapDetected() Called when the MessageCollection has detected a huge gap between current message list.
void	onMessagesAdded(MessageContext context, GroupChannel channel, java.util.List<BaseMessage> messages) Called when one or more BaseMessage is added to this MessageCollection.
void	onMessagesDeleted(MessageContext context, GroupChannel channel, java.util.List<BaseMessage> messages) Called when one or more BaseMessage is deleted from this MessageCollection.
void	onMessagesUpdated(MessageContext context, GroupChannel channel, java.util.List<BaseMessage> messages) Called when one or more BaseMessage is update in this MessageCollection.

Method Detail

onMessagesAdded

void onMessagesAdded(MessageContext context,
                     GroupChannel channel,
                     java.util.List<BaseMessage> messages)

Called when one or more BaseMessage is added to this MessageCollection.

Parameters:

context - a MessageContext of where this addition happened.

channel - a GroupChannel this collection holds.

messages - list of BaseMessage that have been added. All messages will have the same BaseMessage.getSendingStatus().

Since:

3.1.0

See Also:

BaseMessage.SendingStatus

onMessagesUpdated

void onMessagesUpdated(MessageContext context,
                       GroupChannel channel,
                       java.util.List<BaseMessage> messages)

Called when one or more BaseMessage is update in this MessageCollection.

Parameters:

context - a MessageContext of where this update happened.

channel - a GroupChannel this collection holds.

messages - list of BaseMessage that have been updated. All messages will have the same BaseMessage.getSendingStatus().

Since:

3.1.0

See Also:

BaseMessage.SendingStatus

onMessagesDeleted

void onMessagesDeleted(MessageContext context,
                       GroupChannel channel,
                       java.util.List<BaseMessage> messages)

Called when one or more BaseMessage is deleted from this MessageCollection.

Parameters:

context - a MessageContext of where this deletion happened.

channel - a GroupChannel this collection holds.

messages - list of BaseMessage that have been deleted. All messages will have the same BaseMessage.getSendingStatus().

Since:

3.1.0

See Also:

BaseMessage.SendingStatus

onChannelUpdated

void onChannelUpdated(GroupChannelContext context,
                      GroupChannel channel)

Called when there's a change in the GroupChannel this MessageCollection holds.

Parameters:

context - a GroupChannelContext of where the change in channel happened.

channel - a GroupChannel this collection holds.

Since:

3.1.0

onChannelDeleted

void onChannelDeleted(GroupChannelContext context,
                      java.lang.String channelUrl)

Called when the GroupChannel this MessageCollection holds is deleted.

Parameters:

context - a GroupChannelContext of where the change in channel happened.

channelUrl - a channel URL of this channel which has been deleted.

Since:

3.1.0

onHugeGapDetected

void onHugeGapDetected()

Called when the MessageCollection has detected a huge gap between current message list. This can happen SDK checks for missing messages, which occurs in two cases. 1. when a reconnection occurs (changed from disconnected state to connected state) 2. when the androidx.lifecycle.Lifecycle.Event#ON_RESUME is called. Normally, switching between Activity. When this called, you should call MessageCollection.dispose() to remove current collection and create a new collection.

Since:

3.1.0