Set a conversation draft

Save the draft when a chat is left, the conversation changes, or editor content changes. Maintain editor state locally and debounce intermediate saves; submit the newest value before leaving the page.

OpenIMClient.getInstance().conversationManager.setConversationDraft(
    new OnBase<String>() {
        @Override
        public void onSuccess(String data) {
            markDraftSubmitted(conversationID);
        }

        @Override
        public void onError(int code, String error) {
            recordDraftSaveFailure(code, error);
        }
    },
    conversationID,
    editorValue
);

Pass an empty string to clear the draft. Request completion and the later onConversationChanged update are separate; merge draftText and draftTextTime by conversationID, and clear in-memory editor state after logout or an account switch.