你好,有没有一种方法可以创建一个 Android XMPP 客户端,使其能够接收消息确认(XEP-0184)?我了解到 Smack 中有 XEP-0184,但是普通的 Smack 在 Android 上无法使用(或者我不知道如何使用它),总是会出现 SASL 认证异常。
Smack已经支持XEP-0184,具体信息可以查看SMACK-331。在Android平台上,你不能直接使用Smack低于4.1的版本,需要使用Smack 4.1或更高版本。
关于Smack的XEP-0184 API,可以在DeliveryReceiptManager的javadoc文档中阅读更多信息。
是的,这适用于普通的Smack。
Gradle依赖项
compile "org.igniterealtime.smack:smack-android:4.1.0"
compile "org.igniterealtime.smack:smack-tcp:4.1.0"
compile "org.igniterealtime.smack:smack-extensions:4.1.0" // <-- XEP-0184 classes
在连接之前先准备XMPPTCPConnection,即wire up a handler for when you get a delivery receipt
DeliveryReceiptManager.getInstanceFor(mConnection).addReceiptReceivedListener(new ReceiptReceivedListener() {
@Override
public void onReceiptReceived(String fromJid, String toJid, String deliveryReceiptId, Stanza stanza) {
Log.d(TAG, "onReceiptReceived: from: " + fromJid + " to: " + toJid + " deliveryReceiptId: " + deliveryReceiptId + " stanza: " + stanza);
}
});
发送消息时,请确保包含MessageReceiptRequest
Chat chat;
if (StringUtils.isNullOrEmpty(threadId)) {
chat = getChatManager().createChat(to);
Log.d(TAG, "sendMessage: no thread id so created Chat with id: " + chat.getThreadID());
} else {
chat = getChatManager().getThreadChat(threadId);
Log.d(TAG, "sendMessage: thread id was used to continue this chat");
}
Message message = new Message(to);
message.addBody("EN", messageText);
String deliveryReceiptId = DeliveryReceiptRequest.addTo(message);
chat.sendMessage(message);
Log.d(TAG, "sendMessage: deliveryReceiptId for this message is: " + deliveryReceiptId);
全部完成
现在,您可以通过上面的 Chat.sendMessage(Message) 代码中获得的 deliveryReceiptId 在之前设置的 onReceiptReceived 回调中记录,从而知道对方已经收到了发送的消息。
autoAddDeliveryReceiptRequest()
正是这样做的:它会自动将递送回执请求添加到每个发送的消息数据包中。然后您可以使用 DeliveryReceiptManager.addReceiptReceivedListener(ReceiptReceivedListener)
来获取已接收回执的回调。 - Flow
DeliveryReceiptManager.getInstanceFor(mXMPPConnection).enableAutoReceipts();
- 这也将确保已创建并绑定到连接的管理器。 - ge0rgDeliveryReceiptManager.getInstanceFor(connection).autoAddDeliveryReceiptRequests();
- Ivan Morgillo