DialogRadio

public void DialogRadio() {
final CharSequence[] _arr = { "자바", "안드로이드", "이클립스","구글" };
AlertDialog.Builder _alert = new AlertDialog.Builder(this);
_alert.setIcon(R.drawable.ic_launcher);
_alert.setTitle("타이틀");
_alert.setSingleChoiceItems(_arr, -1,
new DialogInterface.OnClickListener() {            
public void onClick(DialogInterface dialog, int item) {
Toast.makeText(getApplicationContext(), _arr[item], Toast.LENGTH_SHORT).show();
dialog.cancel();
}
});
AlertDialog alert = _alert.create();
alert.show();
}


출처
https://m.blog.naver.com/sfchamster/220386952814