title: Android ListView remember previous selected item
body: <p>I have a <code>ListView</code> populated by a <code>String array</code>. The user select one item  and it background color changes. Now, the user clicks <code>back button</code> in mobile and goes back to <code>mainActivity</code> and again return to <code>listviewActivity</code>. The selected item is not shown anymore in the <code>listView</code>.</p>