Dont use AsyncTask

MobileApp/app/src/main/java/com/example/lfrmobileapp/ui/notifications/NotificationsFragment.java

 package com.example.lfrmobileapp.ui.notifications;
 
-import android.app.Activity;
 import android.content.Context;
 import android.content.SharedPreferences;
 import android.os.Bundle;
 import android.view.View;
 import android.view.ViewGroup;
 import android.widget.Button;
-import android.widget.TextView;
 import android.widget.Toast;
 
 import androidx.annotation.NonNull;
 
 import com.example.lfrmobileapp.Communication;
 import com.example.lfrmobileapp.DataTransferAsyncTask;
-import com.example.lfrmobileapp.R;
 import com.example.lfrmobileapp.databinding.FragmentEinstellungenBinding;
 
+import java.io.DataOutputStream;
+import java.net.Socket;
+
+
+/*class NetworkThread extends Thread {
+    String ip;
+    int port;
+    boolean connected;
+
+    NetworkThread(String ip,  int port) {
+        this.ip = ip;
+        this.port = port;
+        this.connected = false;
+    }
+
+    public void run() {
+        try {
+            Socket socket = new Socket(ip, port);
+            DataOutputStream outputStream = new DataOutputStream(socket.getOutputStream());
+            outputStream.writeBytes("Verbindung aufbauen");
+            outputStream.flush();
+            socket.close();
+            connected = true;
+
+        } catch (Exception e) {
+            e.printStackTrace();
+            connected = false;
+        }
+    }
+}*/
 
 public class NotificationsFragment extends Fragment {
 
                 ipAddress = String.valueOf(binding.ipAdress.getText());
                 port = Integer.parseInt(String.valueOf(binding.port.getText()));
 
-                dataTransferAsyncTask = new DataTransferAsyncTask(ipAddress, port);
-                dataTransferAsyncTask.writeTelegram("Verbindung aufbauen");
-                dataTransferAsyncTask.execute();
-
-                if(dataTransferAsyncTask.getConnectionState()){
+                new Thread(new Runnable(){
+                    public void run(){
+                        try {
+                            Socket socket = new Socket(ipAddress, port);
+                            DataOutputStream outputStream = new DataOutputStream(socket.getOutputStream());
+                            outputStream.writeBytes("Verbindung aufbauen");
+                            outputStream.flush();
+                            socket.close();
+                            connected = true;
+
+                        } catch (Exception e) {
+                            e.printStackTrace();
+                            connected = false;
+                        }
+                    }
+                }).start();
+
+                if(connected){
                     editor.putString(ipKey, ipAddress);
                     editor.putInt(portKey, port);
                     editor.apply();