SettingManager.java

import android.content.Context;
import android.content.SharedPreferences;

//usage:
//  SettingsManager sm=new SettingsManager(getApplicationContext());
//  String firstName=sm.getFirstName();

public class SettingsManager {
    SharedPreferences pref;
    SharedPreferences.Editor editor;
    Context _context;
    int PRIVATE_MODE = 0;
    private static final String PREFER_NAME = "SettingData";
    private static final String FIRST_NAME = "firstname";
    private static final String LAST_NAME = "lastname";

    public SettingsManager(Context context){
        this._context = context;
        pref = _context.getSharedPreferences(PREFER_NAME, PRIVATE_MODE);
        editor = pref.edit();
    }

    public void setFirstName(String firstName){
        editor.putString(FIRST_NAME, firstName);
        editor.commit();
    }
    public String getFirstName(){
        return pref.getString(FIRST_NAME,"");
    }

    public void setLastName(String lastname){
        editor.putString(LAST_NAME, lastname);
        editor.commit();
    }
    public String getLastName(){
        return pref.getString(LAST_NAME,"");
    }
}