Membuat Spinner dengan data dinamis berupa String Array

package com.example.spinnerkedua;

import android.os.Bundle;
import android.app.Activity;
import android.view.Menu;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.Spinner;
import android.widget.Toast;

public class MainActivity extends Activity {
    private Spinner splistmakanan;
    private String[] daftarmakanan={"Nasi Goreng","Mie Goreng", "Mie Rebus",
            "Sate Padang", "Nasi Goreng Spesial"};
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        splistmakanan=(Spinner)findViewById(R.id.spmakanan);
        final ArrayAdapter<String> Adaptor=new ArrayAdapter<String>(this,
                android.R.layout.simple_spinner_item,daftarmakanan);
        splistmakanan.setAdapter(Adaptor);

        splistmakanan.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {

            @Override
            public void onItemSelected(AdapterView<?> adapterView, View view,
                    int i, long l) {
                // TODO Auto-generated method stub
                Toast.makeText(MainActivity.this,
                        "Saya memesan "+ Adaptor.getItem(i),
                        Toast.LENGTH_SHORT).show();

            }

            @Override
            public void onNothingSelected(AdapterView<?> arg0) {
                // TODO Auto-generated method stub

            }
        });
    }


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

}