Objects in alertdialog always null

Question

I want an info popup window for a google maps marker. The marker is already clickable. But when i init the instance of the MarkerInfo with the AlertDialog, my objects (TextView, Button) are always null.. Do you have any solutions?

Screen of exception: https://i.ibb.co/zXqBFX4/Bildschirmfoto-2021-12-04-um-10-25-02.png

public class MarkerInfo {
    private Activity activity;
    private AlertDialog dialog;
    private Button button;
    private ChargingStation station;

    /**
     * Constructor of info window
     * @param activity of MainActivity
     * @param station as object
     */
    public MarkerInfo(Activity activity, ChargingStation station) {
        this.activity = activity;
        this.station = station;
    }

    /**
     * Start popping up the window
     */
    public void startLoading() {
        AlertDialog.Builder builder = new AlertDialog.Builder(activity);
        LayoutInflater inflater = activity.getLayoutInflater();
        View view = inflater.inflate(R.layout.download_info_window, null);

        builder.setView(view);
        builder.setCancelable(false);
        dialog = builder.create();

        TextView op = view.findViewById(R.id.operator_no);
        TextView street = view.findViewById(R.id.street_no);
        TextView postal_code = view.findViewById(R.id.postal_code_no);
        TextView area = view.findViewById(R.id.area_no);

        op.setText(station.getOperator());
        street.setText(station.getStreet());
        postal_code.setText(station.getPostal_code());
        area.setText(station.getArea());

        button = view.findViewById(R.id.closeBtn);
        button.setOnClickListener(view1 -> dialog.dismiss());

        dialog.show();
    }


  [1]: https://i.ibb.co/zXqBFX4/Bildschirmfoto-2021-12-04-um-10-25-02.png

Objects in alertdialog always null

0 Answers0