How to realise ArrayAdapter
<p>I have class:</p>

<pre><code>class Catalog {
String name;
Double price;
Integer art;
}
</code></pre>

<p>All object of this class I add to ArrayList.
How to make ArrayAdapter for GridView. GridView should have 2 columns name and price.
And then I need calculate sum of price for all ArrayAdapter object</p>
