在 smack 中获取最近消息的传递状态

问题描述

我是 smack 4.2.4 和 xmpp 的新手.我已经发送了一堆消息，但 Recipent 无法获取它们，我已经关闭了应用程序，下次打开应用程序时想要检查消息的状态，无论是否发送.

I'm newby in smack 4.2.4 and xmpp. I've sent bunch of messages but the recipent is not available to get them,I've close the application and next time when I'll open the application want to check the status of messages, which is delivered or not.

推荐答案

您可以使用 XEP-0184: Message Delivery Receipts 用于检查消息到目的地的传递.首先你必须添加 smack-extensions 的 gradle 依赖:

You can use XEP-0184: Message Delivery Receipts for check delivery of messages to destination. First you must add the gradle dependency of smack-extensions:

implementation 'org.igniterealtime.smack:smack-extensions:4.2.2;

然后使用此代码，当您要发送消息时，将接收请求添加到节:

Then use this code, when you want to send a message, to add receipt request to stanza:

DeliveryReceiptRequest.addTo(message);

然后你可以像这样在一个监听器中接收传递状态:

Then you can receive the delivery status in a listener like this:

DeliveryReceiptManager d = DeliveryReceiptManager.getInstanceFor(connection);
d.addReceiptReceivedListener(new ReceiptReceivedListener() {
    @Override
    public void onReceiptReceived(Jid fromJid, Jid toJid, String receiptId, Stanza receipt) {
        Log.i("delivery", "for: " + receiptId + " received");
        //here you can use sid or receiptId to identify which message is delivered
    }
});

考虑在您发送消息时，随机的唯一节 ID (sid)将设置为您的节.您必须将其保存在数据库中的消息行中，然后您可以在收到回执时使用此sid进行识别.

Consider that when you are sending message, a random unique stanza-id (sid) will be setted to your stanza. you must save it in your message row in database, then you can identify that with this sid when receipt received.

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