ListView con Imagenes

MyActivity.java

import android.app.Activity;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.widget.ListView;


public class MyActivity extends Activity {

    ListViewAdapter adapter;

    String[] titulo = new String[]{
            "titulo1",
            "titulo2",
            "titulo3",
            "titulo4",
    };

    int[] imagenes = {
            R.drawable.icon01,
            R.drawable.icon02,
            R.drawable.icon01,
            R.drawable.icon02
    };

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_my);

        final ListView lista = (ListView) findViewById(R.id.listView1);
        adapter = new ListViewAdapter(this, titulo, imagenes);
        lista.setAdapter(adapter);

        lista.setOnItemClickListener(new AdapterView.OnItemClickListener() {
            @Override
            public void onItemClick(AdapterView adapterView, View view, int i, long l) {
                Toast.makeText(getApplicationContext(), "presiono " + i, Toast.LENGTH_SHORT).show();
            }
        });

        lista.setOnItemLongClickListener(new AdapterView.OnItemLongClickListener() {
            @Override
            public boolean onItemLongClick(AdapterView adapterView, View view, int i, long l) {
                Toast.makeText(getApplicationContext(), "presiono LARGO " + i, Toast.LENGTH_SHORT).show();
                return false;
            }
        });

    }
}

ListViewAdapter.java

import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.ImageView;
import android.widget.TextView;

public class ListViewAdapter extends BaseAdapter {
    // Declare Variables
    Context context;
    String[] titulos;
    int[] imagenes;
    LayoutInflater inflater;

    public ListViewAdapter(Context context, String[] titulos, int[] imagenes) {
        this.context = context;
        this.titulos = titulos;
        this.imagenes = imagenes;
    }

    @Override
    public int getCount() {
        return titulos.length;
    }

    @Override
    public Object getItem(int position) {
        return null;
    }

    @Override
    public long getItemId(int position) {
        return 0;
    }

    public View getView(int position, View convertView, ViewGroup parent) {

        // Declare Variables
        TextView txtTitle;
        ImageView imgImg;

        //http://developer.android.com/intl/es/reference/android/view/LayoutInflater.html
        inflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);

        View itemView = inflater.inflate(R.layout.list_row, parent, false);

        // Locate the TextViews in listview_item.xml
        txtTitle = (TextView) itemView.findViewById(R.id.list_row_title);
        imgImg = (ImageView) itemView.findViewById(R.id.list_row_image);

        // Capture position and set to the TextViews
        txtTitle.setText(titulos[position]);
        imgImg.setImageResource(imagenes[position]);

        return itemView;
    }
}

activity_my.xml

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    android:paddingBottom="@dimen/activity_vertical_margin"
    tools:context=".MyActivity">

    <ListView
        android:layout_width="fill_parent"
        android:layout_height="fill_parent"
        android:id="@+id/listView1"
        android:layout_alignParentRight="true"
        android:layout_alignParentEnd="true"
        android:layout_alignParentTop="true" />

</RelativeLayout>

list_row.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"

    android:orientation="horizontal"
    android:padding="5dip" >

    <!--  listrow  -->
    <LinearLayout android:id="@+id/thumbnail"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:padding="3dip"
        android:layout_alignParentLeft="true"

        android:layout_marginRight="5dip">

        <ImageView
            android:id="@+id/list_row_image"
            android:layout_width="30dip"
            android:layout_height="30dip"
            android:src="@drawable/ic_launcher"/>

    </LinearLayout>

    <!-- titulo de la categoria -->
    <TextView
        android:id="@+id/list_row_title"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:text="title"
        android:textColor="#040404"
        android:typeface="sans"
        android:textSize="18dp"
        android:layout_centerVertical="true"
        android:layout_toRightOf="@+id/thumbnail" />

</RelativeLayout>