Android SQLite búsqueda por nombre

Tomé un ejemplo para trabajar con SQLite en Android desde aquí: http://www.cnblogs.com/pangblog/p/3327696.html

Y yo strugle con la obtención de contacto por su nombre. ¿Cómo puedo cambiar GetContact función de búsqueda por nombre?

DatabaseHandler:

public class DatabaseHandler extends SQLiteOpenHelper {
//Database Version 
private static final int DATABASE_VERSION = 1;
//Database Name
private static final String DATABASE_NAME = "contactsManager";
//Contacts table name 
private static final String TABLE_CONTACTS = "contacts";
//Contacts Table Columns names 
private static final String KEY_ID = "id";
private static final String KEY_NAME = "name";
private static final String KEY_PH_NUM = "phone_number";
public DatabaseHandler(Context context) {
super(context, DATABASE_NAME, null, DATABASE_VERSION);
}
// Creating Tables : CREATE TABLE table_name (column_name column_type);
@Override
public void onCreate(SQLiteDatabase db) {
String CREATE_CONTACTS_TABLE = "CREATE TABLE " + TABLE_CONTACTS + "("
+ KEY_ID + " INTEGER PRIMARY KEY," + KEY_NAME + " TEXT,"
+ KEY_PH_NUM + " TEXT" + ")";       
db.execSQL(CREATE_CONTACTS_TABLE);
}
// Upgrading database
@Override
public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
// Drop older table if existed 
db.execSQL("DROP TABLE IF EXISTS " + TABLE_CONTACTS);
// Create tables again
onCreate(db);
}   
//Adding new contact 
void addContact(Contact contact) {
SQLiteDatabase db = this.getWritableDatabase();
ContentValues values = new ContentValues();
values.put(KEY_NAME, contact.getName()); // Contact Name
values.put(KEY_PH_NUM, contact.getPhoneNumber()); // Contact Phone
// Inserting Row
db.insert(TABLE_CONTACTS, null, values);
db.close(); // Closing database connection
}
// Getting single contact 
Contact getContact(int id) {
SQLiteDatabase db = this.getReadableDatabase();
Cursor cursor = db.query(TABLE_CONTACTS, new String[] { KEY_ID,
KEY_NAME, KEY_PH_NUM }, KEY_ID + "=?",
new String[] { String.valueOf(id) }, null, null, null, null);
if (cursor != null)
cursor.moveToFirst();
Contact contact = new Contact(Integer.parseInt(cursor.getString(0)),
cursor.getString(1), cursor.getString(2));
return contact;
}
// Getting All Contacts
public List<Contact> getAllContacts() {
List<Contact> contactList = new ArrayList<Contact>();
// Select All Query ：SELECT * FROM tableName WHERE criteria
String selectQuery = "SELECT  * FROM " + TABLE_CONTACTS;
SQLiteDatabase db = this.getWritableDatabase();
Cursor cursor = db.rawQuery(selectQuery, null);
// looping through all rows and adding to list
if (cursor.moveToFirst()) {
do {
Contact contact = new Contact();
contact.setID(Integer.parseInt(cursor.getString(0)));
contact.setName(cursor.getString(1));
contact.setPhoneNumber(cursor.getString(2));
// Adding contact to list
contactList.add(contact);
} while (cursor.moveToNext());
}
return contactList;
}
}

Contacto:

public class Contact {
int _id;
String _name;
String _phone_number;
public Contact() {
}
public Contact(int id, String name, String phone_number) {
this._id = id;
this._name = name;
this._phone_number = phone_number;
}
public Contact(String name, String phone_number) {
this._name = name;
this._phone_number = phone_number;
}
public int getID() {
return this._id;
}
public void setID(int id) {
this._id = id;
}
public String getName() {
return this._name;
}
public void setName(String name) {
this._name = name;
}
public String getPhoneNumber() {
return this._phone_number;
}
public void setPhoneNumber(String phone_number) {
this._phone_number = phone_number;
}
}