This file contain a thread as class that run a log every 3 seconds

ThreadSleepyheadIndependentClass.java

// [ES] Hilo dormilón
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;

public class ThreadSleepyheadIndependentClass extends AppCompatActivity {

    TextView texto;
    Button boton;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        texto = (TextView) findViewById(R.id.texto);
        boton = (Button) findViewById(R.id.boton);

        boton.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {

                Hilo hilo = new Hilo();
                hilo.start();
            }
        });
    }

    public class Hilo extends Thread {

        public void run(){
            for(int i =1; i<= 10; i++){
                try {
                    Thread.sleep(3000);
                } catch (InterruptedException e) {
                    e.printStackTrace();
                }
                Log.d("DEBUG", String.valueOf(i)); //This runs every 3 seconds
            }
        }

    }


}