Android Contact Multi Select

I want something like this:

How to deal the result?

I want to diplay contact name + contact image and be able to multi select them.

What i have got so far: the arrayclass

public class ContactList extends ArrayAdapter {
private final Activity activity;
private final List stocks;

public ContactList(Activity activity, List objects) {
    super(activity, R.layout.contact_row, objects);
    this.activity = activity;
    this.stocks = objects;
}

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

    View rowView = convertView;
    ContactStockView sv = null;
    if (rowView == null) {
        // Get a new instance of the row layout view
        LayoutInflater inflater = activity.getLayoutInflater();
        rowView = inflater.inflate(
                R.layout.contact_row, null);

        // Hold the view objects in an object,
        // so they don't need to be re-fetched
        sv = new ContactStockView();
        sv.name = (TextView) rowView.findViewById(R.id.contact_name);
        sv.Image = (ImageView) rowView.findViewById(R.id.imageView1);
        sv.number = (TextView) rowView.findViewById(R.id.contact_number);

        // Cache the view objects in the tag,
        // so they can be re-accessed later
        rowView.setTag(sv);
    } else {
        sv = (ContactStockView) rowView.getTag();
    }
    // Transfer the stock data from the data object
    // to the view objects
    contact currentStock = (contact) stocks.get(position);
    sv.name.setText(currentStock.getName());
    sv.number.setText(currentStock.getNumber());
    sv.Image.setImageBitmap(currentStock.getPicture());
    // TODO Auto-generated method stub
    return rowView;
}

protected static class ContactStockView {
    protected TextView name;
    protected TextView number;
    protected ImageView Image;  }}

The Contact Class:

public class contact {

private String name;
private String number;
private Bitmap picture;

// your current code goes here

public void setPicture(Bitmap picture) {
    this.picture = picture;
}

public Bitmap getPicture() {
    return picture;
}

public contact(String name, String number,Bitmap photo) {
    this.name = name;
    this.number = number;
    this.picture = photo;
}

public void setName(String name) {
    this.name = name;
}

public void setNumber(String number) {
    this.number = number;
}

public String getName() {
    return this.name;
}

public String getNumber() {
    return this.number;
}}