Question

我提前为格式化道歉。我是Android开发的新手，我正在开发一个XMPP客户端，与家里的服务器交谈，通过Google Talk机器人做命令....

我确实看了一下stackoverflow的一些答案并用Google搜索了一些答案
我通过github
我确实添加了使用权限
我让ASMACK在我的android上运行测试应用程序。

我将工作代码复制到我正在尝试制作的应用程序并给我错误...就像我说我是新的并且在10年内没有完成java编程...我不知道怎么听到错误堆栈

我有一个名为“设置对话框”的设置对话框。当我点击按钮时，我运行了这个：



    protected void onStart() {
    super.onStart();
    setContentView(R.layout.settings);
    getWindow().setFlags(4, 4);
    setTitle("XMPP Settings");
    Button ok = (Button) findViewById(R.id.ok);
    ok.setOnClickListener( new View.OnClickListener()
    {
            @Override
            public void onClick(View v)
            {
                String host = HOST_ADDRESS;
                int port = HOST_PORT_NUM;
                String service = HOST_SERVICE;
                String username = "me@gmail.com";//getText(R.id.userid);
                String password = "abc123";//getText(R.id.password);

                // Create a connection
                ConnectionConfiguration connConfig = new ConnectionConfiguration("talk.google.com", 5222, "gmail.com");
                XMPPConnection XMPPCon = new XMPPConnection(connConfig);
                try 
                {
                    XMPPCon.connect();
                    XMPPCon.login(username,password);

                } 
                catch (XMPPException ex) 
                {
                    ex.printStackTrace();
                    HomeBotClient.setConnection(null);
                }
                HomeBotClient.setConnection(XMPPCon);
                dismiss();
            }

    }
    );
}

protected void onStart() { super.onStart(); setContentView(R.layout.settings); getWindow().setFlags(4, 4); setTitle("XMPP Settings"); Button ok = (Button) findViewById(R.id.ok); ok.setOnClickListener( new View.OnClickListener() { @Override public void onClick(View v) { String host = HOST_ADDRESS; int port = HOST_PORT_NUM; String service = HOST_SERVICE; String username = "me@gmail.com";//getText(R.id.userid); String password = "abc123";//getText(R.id.password); // Create a connection ConnectionConfiguration connConfig = new ConnectionConfiguration("talk.google.com", 5222, "gmail.com"); XMPPConnection XMPPCon = new XMPPConnection(connConfig); try { XMPPCon.connect(); XMPPCon.login(username,password); } catch (XMPPException ex) { ex.printStackTrace(); HomeBotClient.setConnection(null); } HomeBotClient.setConnection(XMPPCon); dismiss(); } } ); }

在主活动中将其称为“setConnection”函数


    
    public void setConnection (XMPPConnection XMPPCon) 
    {

    this.XMPPCon = XMPPCon;
    if (XMPPCon != null) 
    {
        ChatManager chatmanager = XMPPCon.getChatManager();
        Chat newChat = chatmanager.createChat("psun03@gmail.com",new MessageListener()
        {
            public void processMessage(Chat chat, Message message) {
                try 
                {
                  Log.v(TAG, "Got:" + message.getBody());
                  chat.sendMessage(message.getBody());
                } 
                catch (XMPPException e) 
                {
                    e.printStackTrace();
                    Log.v(TAG, "Couldn't respond:" + e);
                }
                Log.v(TAG, message.toString());
              }
        });
        try 
        {
            newChat.sendMessage("OMNOMNOM");
        } 
        catch (XMPPException e) 
        {
            e.printStackTrace();
            Log.v(TAG, "couldn't send:" + e.toString());
        }

          // Accept only messages from friend@gmail.com
          PacketFilter filter 
              = new AndFilter(new PacketTypeFilter(Message.class), 
                              new FromContainsFilter("psun03@gmail.com"));

          // Collect these messages
          PacketCollector collector = XMPPCon.createPacketCollector(filter);

          while(true) {
            Packet packet = collector.nextResult();

            if (packet instanceof Message) 
            {
              Message msg = (Message) packet;
              // Process message
              Log.v(TAG, "Got message:" + msg.getBody());
            }
          }
    }
}

按下按钮时出现此错误

this.XMPPCon = XMPPCon; if (XMPPCon != null) { ChatManager chatmanager = XMPPCon.getChatManager(); Chat newChat = chatmanager.createChat("psun03@gmail.com",new MessageListener() { public void processMessage(Chat chat, Message message) { try { Log.v(TAG, "Got:" + message.getBody()); chat.sendMessage(message.getBody()); } catch (XMPPException e) { e.printStackTrace(); Log.v(TAG, "Couldn't respond:" + e); } Log.v(TAG, message.toString()); } }); try { newChat.sendMessage("OMNOMNOM"); } catch (XMPPException e) { e.printStackTrace(); Log.v(TAG, "couldn't send:" + e.toString()); } // Accept only messages from friend@gmail.com PacketFilter filter = new AndFilter(new PacketTypeFilter(Message.class), new FromContainsFilter("psun03@gmail.com")); // Collect these messages PacketCollector collector = XMPPCon.createPacketCollector(filter); while(true) { Packet packet = collector.nextResult(); if (packet instanceof Message) { Message msg = (Message) packet; // Process message Log.v(TAG, "Got message:" + msg.getBody()); } } } }

04-07 17:21:15.011: E/AndroidRuntime(1099): FATAL EXCEPTION: main 04-07 17:21:15.011: E/AndroidRuntime(1099): android.os.NetworkOnMainThreadException 04-07 17:21:15.011: E/AndroidRuntime(1099): at android.os.StrictMode$AndroidBlockGuardPolicy.onNetwork(StrictMode.java:1117) 04-07 17:21:15.011: E/AndroidRuntime(1099): at java.net.InetAddress.lookupHostByName(InetAddress.java:385) 04-07 17:21:15.011: E/AndroidRuntime(1099): at java.net.InetAddress.getAllByNameImpl(InetAddress.java:236) 04-07 17:21:15.011: E/AndroidRuntime(1099): at java.net.InetAddress.getAllByName(InetAddress.java:214) 04-07 17:21:15.011: E/AndroidRuntime(1099): at org.jivesoftware.smack.proxy.DirectSocketFactory.createSocket(DirectSocketFactory.java:49) 04-07 17:21:15.011: E/AndroidRuntime(1099): at org.jivesoftware.smack.XMPPConnection.connectUsingConfiguration(XMPPConnection.java:576) 04-07 17:21:15.011: E/AndroidRuntime(1099): at org.jivesoftware.smack.XMPPConnection.connect(XMPPConnection.java:1034) 04-07 17:21:15.011: E/AndroidRuntime(1099): at com.ps.homebotclient.SettingsDialog$1.onClick(SettingsDialog.java:53) 04-07 17:21:15.011: E/AndroidRuntime(1099): at android.view.View.performClick(View.java:4204) 04-07 17:21:15.011: E/AndroidRuntime(1099): at android.view.View$PerformClick.run(View.java:17355) 04-07 17:21:15.011: E/AndroidRuntime(1099): at android.os.Handler.handleCallback(Handler.java:725) 04-07 17:21:15.011: E/AndroidRuntime(1099): at android.os.Handler.dispatchMessage(Handler.java:92) 04-07 17:21:15.011: E/AndroidRuntime(1099): at android.os.Looper.loop(Looper.java:137) 04-07 17:21:15.011: E/AndroidRuntime(1099): at android.app.ActivityThread.main(ActivityThread.java:5041) 04-07 17:21:15.011: E/AndroidRuntime(1099): at java.lang.reflect.Method.invokeNative(Native Method) 04-07 17:21:15.011: E/AndroidRuntime(1099): at java.lang.reflect.Method.invoke(Method.java:511) 04-07 17:21:15.011: E/AndroidRuntime(1099): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:793) 04-07 17:21:15.011: E/AndroidRuntime(1099): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:560) 04-07 17:21:15.011: E/AndroidRuntime(1099): at dalvik.system.NativeStart.main(Native Method)

Answer 1

Android 4.0或更高版本不允许在GUI线程中进行网络I / O操作，如果这样做，它将抛出NetworkOnMainThread例外。为了防止这种情况，aSmack附带了AndroidConnectionConfiguration，它提供了

AndroidConnectionConfiguration(String serviceName)
AndroidConnectionConfiguration(String serviceName, int timeout)
AndroidConnectionConfiguration(String host, int port, String name)

，在使用时，将生成一个新线程，因此可以防止异常。

Answer 2

仅当您尝试在主UI线程上调用长时间运行的进程（如Web服务调用）时，才会出现FYI android.os.NetworkOnMainThreadException。它在＆lt; 2.3设备中效果最好，但是如果你还没有将它包含在线程中并尝试在＆gt; 3.0设备上运行它，它将为你提供NetworkOnMainThreadException。

要解决它，您可以实现AsyncTask（标准方式）或包含以下代码（懒惰方式）：

StrictMode.ThreadPolicy policy = new StrictMode.ThreadPolicy.Builder().permitAll().build();
StrictMode.setThreadPolicy(policy);

在Android StrictMode – NetworkOnMainThreadException

检查并阅读有关NetworkOnMainThreadException的更多信息

aSmack与NetworkOnMainThreadException崩溃

2 个答案: