android main class

package com.bootje.stijn.bootje;

import android.content.Context;
import android.content.pm.ActivityInfo;
import android.net.wifi.WifiConfiguration;
import android.net.wifi.WifiManager;
import android.os.Looper;
import android.os.Message;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.view.View.*;
import android.view.*;
import android.widget.Toast;

public class Bootje extends AppCompatActivity {

    public static Bootje main;
    boolean disconnected = false;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_bootje);
        setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_SENSOR_LANDSCAPE);
        registerListeners();
        main = this;
    }

    void registerListeners() {
        Button button = (Button) findViewById(R.id.links);
        Button button2 = (Button) findViewById(R.id.rechts);
        Button status = (Button) findViewById(R.id.check);
        //check
        status.setOnClickListener(new OnClickListener() {
            @Override
            public void onClick(View v) {
                 setStatus("Verbinding testen...");
                 new sendTCP().execute("check");
            }
        });
        //links
        button.setOnTouchListener(new OnTouchListener() {
            @Override
            public boolean onTouch(View v, MotionEvent event) {
                if (event.getAction() == MotionEvent.ACTION_UP ||
                        event.getAction() == MotionEvent.ACTION_CANCEL) {
                    new sendTCP().execute("leftoff");
                } else if (event.getAction() == MotionEvent.ACTION_DOWN) {
                    new sendTCP().execute("lefton");
                }
                return false;
            }
        });
        //rechts
        button2.setOnTouchListener(new OnTouchListener() {
            @Override
            public boolean onTouch(View v, MotionEvent event) {
                if (event.getAction() == MotionEvent.ACTION_UP ||
                        event.getAction() == MotionEvent.ACTION_CANCEL) {
                    new sendTCP().execute("rightoff");
                } else if (event.getAction() == MotionEvent.ACTION_DOWN) {
                    new sendTCP().execute("righton");
                }
                return false;
            }
        });
    }

    public void setStatus(final String message) {
        Context context = Bootje.main.getApplicationContext();
        Toast.makeText(context, message, Toast.LENGTH_SHORT).show();
    }
}