setSingleChoiceItems AlertDialog -
final CharSequence[] items = {"Red", "Green", "Blue"};
AlertDialog dialog = new AlertDialog.Builder(this).setMessage("Hello world").show();
TextView textView = (TextView) dialog.findViewById(android.R.id.message);
textView.setTextSize(10);
dialog.setTitle("Colors");
dialog.setSingleChoiceItems(items, -1, new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int item) {
Toast.makeText(getApplicationContext(),
items[item], Toast.LENGTH_SHORT).show();
}
});