[Android] CustomAdapter para ListView

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

<ImageView
    android:id="@+id/contact_image"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_gravity="center_vertical"
    android:contentDescription="Hardcoded"
    android:longClickable="true"
    android:src="@drawable/leona" />

<LinearLayout
    android:id="@+id/row"
    android:layout_width="0dp"
    android:layout_height="wrap_content"
    android:layout_weight="1"
    android:orientation="vertical"
    android:padding="8dp" >

    <TextView
        android:id="@+id/contact_name"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginTop="2dp"
        android:text="Guillermo Rodriguez"
        android:textSize="18sp"
        android:textStyle="bold" />

    <HorizontalScrollView
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:layout_marginBottom="2dp" >

        <TextView
            android:id="@+id/contact_profesion"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_below="@+id/contact_name"
            android:layout_marginTop="8dp"
            android:text="Ingeniero Informatico en Sihogar"
            android:textSize="15sp"
            android:textStyle="italic" />
    </HorizontalScrollView>
</LinearLayout>

<LinearLayout
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:orientation="vertical" >

    <ImageButton
        android:id="@+id/b_call"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:src="@drawable/ic_action_call" />

    <ImageButton
        android:id="@+id/b_delete"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:src="@drawable/ic_action_remove" />
</LinearLayout>

</LinearLayout>

<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:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    tools:context=".MainActivity" >

<ListView
    android:id="@+id/leagueoflegendsList"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
>    
</ListView>

</RelativeLayout>

package com.driverlandia.listview;

import java.util.List;
import android.app.Activity;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import android.widget.ImageView;
import android.widget.TextView;

public class AdapterContactos extends ArrayAdapter<Persona> {

private Activity context;
private List<Persona> contactos;

public AdapterContactos(Activity context, List<Persona> contactos) {
	super(context, R.layout.activity_main, contactos);
	this.contactos = contactos;
	this.context = context;
}

@Override
public View getView(int pos, View vista, ViewGroup parent) {

	View row = vista;

	if (row == null) {

		LayoutInflater inflater = context.getLayoutInflater();
		row = inflater.inflate(R.layout.activity_contact, null);
		
	}

	row.setTag(pos);
	TextView nombre = (TextView) row.findViewById(R.id.contact_name);
	TextView profesion = (TextView) row
			.findViewById(R.id.contact_profesion);
	ImageView foto = (ImageView) row.findViewById(R.id.contact_image);

	if (contactos.get(pos) != null) {
		nombre.setText(contactos.get(pos).getNombre());
		profesion.setText(contactos.get(pos).getProfession());
		foto.setImageResource(contactos.get(pos).getImg());
	}
	return row;
}

public int getCount() {
	return this.contactos.size();
}


}

package com.driverlandia.listview;

import java.util.List;

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

public class MainActivity extends Activity {

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    
    Persona[] lista = new Persona[] {
    	new Persona("Leona","Stuns Everywhere",18,R.drawable.leona),
    	new Persona("Jinx","See what PowPow thinks",18,R.drawable.jinx),
    	new Persona("Teemo","Lord of Terror and Destruction",14,R.drawable.teemo)
    };
    
    ListView listview = (ListView) findViewById(R.id.leagueoflegendsList);
    ArrayAdapter<Persona> adapter = ArrayAdapter.createFromResource(getApplicationContext(), lista , R.id.leagueoflegendsList);
    
    
    listview.setAdapter(adapter);
    
}


@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;
}

}