private void showGetRoomUI()
{
EditText roomInput = new EditText(this);
roomInput.Text = "https://apprtc.appspot.com/?r=";
roomInput.SetSelection(roomInput.Text.Length);
IDialogInterfaceOnClickListener listener = new OnClickListenerAnonymousInnerClassHelper(this, roomInput);
AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.SetMessage("Enter room URL").SetView(roomInput).SetPositiveButton("Go!", listener).Show();
}