关于java：Android处理程序，不在ui线程中执行post()

Android handler, perform post() not in the ui thread

从一开始，我虽然Handler的方法post()和postDelayed()在与UI线程不同的线程中执行操作，所以我决定在该线程上创建一个TCP套接字，但是它不起作用。

我正在接收NetworkOnMainThreadException被抛出。

有没有办法在UI线程中执行post()和postDelayed()任务？

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public class ServerHandler extends Handler {

private Socket serverSocket;

public ServerHandler(){
super(new MyHandlerThread("MyHandlerThread").getLooper());
}

@Override
public void handleMessage(Message msg) {
super.handleMessage(msg);
}

public void connectServer()
{
post(serverConnection);
}

public void writeMessage(String msg){
try {
serverSocket.getOutputStream().write(msg.getBytes());
Log.d("MyLog","Message sent!");
}
catch (IOException io){
Log.d("MyLog","SendMessage error");
}
}

private Runnable serverConnection = new Runnable() {
@Override
public void run() {

try {
serverSocket = new Socket("152.168.21.24", 5001);

Log.d("MyLog","Server connected!");

while(true){
Log.d("MyLog","Listening server");
byte[] buffer = new byte[256];
int bytesReceived = serverSocket.getInputStream().read(buffer);
if(bytesReceived==-1) {
throw new IOException("Server disconnected");
}
else {
String msg = new String(buffer,0,bytesReceived);
Log.d("MyLog","Message received:" + msg);

}
}
}

catch (IOException io){
Log.d("MyLog","Server connection error" + io.getMessage());
connectServer();
}
}
};

}