ReceiveThread

.java

package me.flawn.memecopyz;

import android.app.Activity;
import android.widget.TextView;

import java.io.IOException;
import java.net.Socket;
import java.net.UnknownHostException;
import java.util.Scanner;

// Thread wird in der Main nur einmal gestartet, nicht gestoppt
public class Receive implements Runnable
{
    public Activity activity;
    public Receive(Activity _activity) {
        this.activity = _activity;
}
    @Override
    public void run() {
        Socket server = null;
        try {
            server = new Socket("localhost", 3141);
            Scanner in = new Scanner(server.getInputStream());
            String text = in.nextLine();
            //soll eigentlich in der App einen Text ersetzen
            TextView myAwesomeTextView = (TextView)this.activity.findViewById(R.id.textView3);
            myAwesomeTextView.setText(text);

        } catch (UnknownHostException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        } finally {
            if (server != null)
                try {
                    server.close();

                } catch (IOException e) {
                }
        }
    }
}