Radio button selection dialog

Building on the previous list-selection example, we will add a radio-button icon to the list.

Open MyActivity from the previous example and change this line:

builder.setItems(items, new DialogInterface.OnClickListener(){

to:

builder.setSingleChoiceItems(items, -1, new DialogInterface.OnClickListener(){

The '-1' specifies which item to select by default. 0 would have been Red, -1 is none.

By default, the window will not close when they make a selection.  Replace this line:

                return;

with this line:

                dialogInterface.dismiss();

Redeploy (mvn clean install) and test.