据我们所知,我们无法在UI线程中执行Web连接,并尝试在Thread或AsyncTask上执行此操作,并且我选择在可运行的Thread中运行Web连接。当我单击按钮时,log会显示正确的代码,connection.connect();
恰好是NetworkOnMainThreadException,但是你知道,从我下面的代码中,我已经在线程中编写了我的networkconnecton代码,所以,任何人都告诉我正确的处理这个问题的方法?
public class MainActivity extends Activity {
private Button btn_send;
private EditText et_content;
private Connection connection;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
btn_send = (Button) findViewById(R.id.bt_sendms);
et_content = (EditText) findViewById(R.id.et_inputcontent);
btn_send.setOnClickListener(onClicListener);
}
public OnClickListener onClicListener = new OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
handler.post(task);
}
};
private Handler handler = new Handler();
private Runnable task = new Runnable() {
@Override
public void run() {
// TODO Auto-generated method stub
XMPPConnection.DEBUG_ENABLED = true;
ConnectionConfiguration connectionConfig = new ConnectionConfiguration(
"192.168.1.108", Integer.parseInt("5222"), "dell-PC");
AccountManager accountManager;
connectionConfig.setReconnectionAllowed(true);
connectionConfig.setSendPresence(true);
connection = new XMPPConnection(connectionConfig);
try {
connection.connect();
accountManager = connection.getAccountManager(); //
connection.login("admin", "888889");
ChatManager chatManager = connection.getChatManager();
Chat newChat = chatManager.createChat("bryanwu@qq.com",
new MessageListener() {
@Override
public void processMessage(Chat chat,
Message message) {
}
});
try {
newChat.sendMessage(et_content.getText().toString());
} catch (XMPPException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
et_content.setText("");
} catch (XMPPException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} //
}
};
}
答案 0 :(得分:0)
您在ui线程上创建了一个处理程序。您可以在runnable run方法中运行与网络相关的操作。所以你在ui线程上运行网络相关的操作。
使用Thread
或Asynctask
http://developer.android.com/reference/android/os/AsyncTask.html
引自doscs
每个Handler实例都与一个线程和该线程的消息队列相关联。 当你创建一个新的Handler时,它被绑定到创建它的线程的线程/消息队列 - 从那时起,它将消息和runnables传递给该消息队列并在它们出现时执行它们消息队列。
如果您在ui post honey上运行网络相关操作,您将获得NetworkOnMainThreadException
http://developer.android.com/reference/android/os/NetworkOnMainThreadException.html