Android TNB 13. Create an Interface w/ Java

//Android TNB 13. Create an Interface w/ Java
MainActivity.Java of the Allison project taught by The New Boston

package com.thenewboston.allison;

import android.support.v7.app.ActionBarActivity;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.widget.RelativeLayout;
import android.widget.Button;

public class MainActivity extends ActionBarActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        RelativeLayout buckysLayout = new RelativeLayout(this); //Create Layout
        Button redButton = new Button(this);  //Create Button

        buckysLayout.addView(redButton); //add Button to Layout (Button is now Child of Layout)
        setContentView(buckysLayout);  //Set this activities content/display to this view
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.menu_main, menu);
        return true;
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        // Handle action bar item clicks here. The action bar will
        // automatically handle clicks on the Home/Up button, so long
        // as you specify a parent activity in AndroidManifest.xml.
        int id = item.getItemId();

        //noinspection SimplifiableIfStatement
        if (id == R.id.action_settings) {
            return true;
        }

        return super.onOptionsItemSelected(item);
    }
}