MainActivity.java

package com.robotoworks.example.prefs;

import android.os.Bundle;
import android.app.Activity;
import android.content.SharedPreferences;
import android.view.Menu;

public class MainActivity extends Activity {

	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_main);
		
		UserPreferences prefs = UserPreferences.getInstance();
		
		prefs
			.edit()
			.putName("Joe Bloggs")
			.putAge(25)
			.commit();
		
		String name = prefs.getName();
		int age = prefs.getAge();
	}

	@Override
	public boolean onCreateOptionsMenu(Menu menu) {
		getMenuInflater().inflate(R.menu.main, menu);
		return true;
	}

}