简单的 smack jabber 程序需要很长时间才能连接 android

Question

使用smack jabber library 4.3.1, my android program takes 84 seconds to connect, which is fairly long. I have seen a discussion in a forum解决类似问题，但它影响了早期版本的 SMACK。

我做错了什么？

下面是用于连接的代码。

                XMPPTCPConnectionConfiguration cc= XMPPTCPConnectionConfiguration.builder()
                        .setCompressionEnabled(true)
                        .setUsernameAndPassword("smackuser","ilovesmack")
                        .setXmppDomain("xmpp.jp")
                        .setSecurityMode(ConnectionConfiguration.SecurityMode.required)
                        .build();
                connection=new XMPPTCPConnection(cc);
                connection.addConnectionListener(MainActivity.this);
                connection.connect();
                connection.login();

Answer 1

只需调用一次。例如在应用程序 class

AndroidSmackInitializer.initialize(Context);

在任何 XMPP 连接之前

[旧答案。不要使用]
我发现了问题。 SMACK jabber 使用 minidns and minidns has a recently fixed bug on android 8。我使用下面的代码解决了这个问题。感谢@Flow

//////////////////////smack///////////////////////////////////////
implementation "org.igniterealtime.smack:smack-android-extensions:4.3.1"
implementation "org.igniterealtime.smack:smack-experimental:4.3.1"
implementation "org.igniterealtime.smack:smack-tcp:4.3.1"
implementation 'de.measite.minidns:minidns-hla:0.2.4'//added this

添加了 minidns 依赖项

import org.minidns.dnsserverlookup.android21.AndroidUsingLinkProperties;
AndroidUsingLinkProperties.setup(context);//add this
cc=XMPPTCPConnectionConfiguration.builder()
                        .setCompressionEnabled(true)
                        .setUsernameAndPassword(username,password)
                        .setXmppDomain(domain)
                        .build();
                xmpptcpConnection=new XMPPTCPConnection(cc);
                xmpptcpConnection.addConnectionListener(this);
                xmpptcpConnection.connect();
                xmpptcpConnection.login();

简单的 smack jabber 程序需要很长时间才能连接 android

simple smack jabber program taking very long to connect on android

java

android

smack