68MainActivity的消息回执

消息回执就是“已发送”，“已读”等等状态：

/** * 消息回执BroadcastReceiver *  *  */private BroadcastReceiver ackMessageReceiver = new BroadcastReceiver() {@Overridepublic void onReceive(Context context, Intent intent) {String msgid = intent.getStringExtra("msgid");String from = intent.getStringExtra("from");EMConversation conversation = EMChatManager.getInstance().getConversation(from);if (conversation != null) {EMMessage message = conversation.getMessage(msgid);if (message != null) {if (ChatActivity.activityInstance != null) {if (message.getChatType() == ChatType.Chat) {if (from.equals(ChatActivity.activityInstance.getToChatUsername())) {return;}}}}message.isAcked = true;}}};

代码注册：

 // 注册一个ack回执消息的BroadcastReceiver        IntentFilter ackMessageIntentFilter = new IntentFilter(EMChatManager                .getInstance().getAckMessageBroadcastAction());        ackMessageIntentFilter.setPriority(3);        registerReceiver(ackMessageReceiver, ackMessageIntentFilter);

onDestory需要取消注册。