ChatManager.Instance().sendMessage(msg, new SendMessageCallback() { @Override public void onSuccess(long messageUid, long timestamp) { msg.direction = MessageDirection.Send; msg.serverTime = timestamp; msg.messageUid = messageUid; UiMessage uiMessage = new UiMessage(msg); mMsgList.add(uiMessage); mAdapter.notifyDataSetChanged(); }

            @Override
            public void onFail(int errorCode) {

                showToast("发送失败！");
            }

            @Override
            public void onPrepare(long messageId, long savedTime) {
                msg.messageId = messageId;
                msg.serverTime = savedTime;
            }
        });