Android Conversations

WKUIConversationMsg is one row in the chat list. It contains a channel, last message, time, and unread count.

Read the chat list asynchronously

WKIM.getInstance().getConversationManager().getAll(conversations -> {
    adapter.submitList(conversations);
});

getWkMsg() returns the last message, getWkChannel() returns the local channel profile, and lastMsgTimestamp plus unreadCount can drive the list directly.

Observe changes

ConversationManager manager = WKIM.getInstance().getConversationManager();

manager.addOnRefreshMsgListListener("conversation-list", changedItems -> {
    mergeByChannel(changedItems);
});

manager.addOnDeleteMsgListener("conversation-list", (channelID, channelType) -> {
    removeRow(channelID, channelType);
});

The change callback can update only affected channels. For simpler code, asynchronously read getAll again after each callback.

Unread counts and deletion

After the user opens a chat and sees its messages, set that channel's unread count to zero:

manager.updateRedDot("bob", WKChannelType.PERSONAL, 0);

Delete one conversation row with:

manager.deleteWitchChannel("bob", WKChannelType.PERSONAL);

The method is named deleteWitchChannel in this version. It removes the conversation row; it does not mean every local message for that channel is cleared.

Multi-device conversation sync

manager.addOnSyncConversationListener((lastMsgSeqs, msgCount, version, callback) -> {
    conversationApi.sync(lastMsgSeqs, msgCount, version, callback::onBack);
});

The application API returns WKSyncChat, and the SDK notifies the conversation list after storing it. Keep Activity and Fragment work out of this provider.

Remove list and deletion observers when the screen is destroyed:

manager.removeOnRefreshMsgListListener("conversation-list");
manager.removeOnDeleteMsgListener("conversation-list");