Android Question Library not working

package com.qrmusic.spotify;

import android.content.Context;
import com.spotify.android.appremote.api.ConnectionParams;
import com.spotify.android.appremote.api.Connector;
import com.spotify.android.appremote.api.SpotifyAppRemote;

/**
 * Wrapperklasse voor het verbinden met Spotify en afspelen van muziek.
 */
public class SpotifyWrapper {

    private SpotifyAppRemote mSpotifyAppRemote = null;

    /**
     * Verbindt met Spotify via Spotify App Remote SDK.
     * 
     * @param context Android context
     * @param clientId Spotify API client ID
     * @param redirectUri Redirect URI van Spotify ontwikkelaarsdashboard
     */
    public void Connect(Context context, String clientId, String redirectUri) {
        ConnectionParams connectionParams = new ConnectionParams.Builder(clientId)
                .setRedirectUri(redirectUri)
                .showAuthView(false)
                .build();

        SpotifyAppRemote.connect(context, connectionParams, new Connector.ConnectionListener() {
            @Override
            public void onConnected(SpotifyAppRemote remote) {
                mSpotifyAppRemote = remote;
            }

            @Override
            public void onFailure(Throwable throwable) {
                // Verbindingsfout afhandelen (optioneel)
            }
        });
    }

    /**
     * Speelt een track af op Spotify.
     * 
     * @param uri Spotify track URI (bijv. "spotify:track:...")
     */
    public void Play(String uri) {
        if (mSpotifyAppRemote != null) {
            mSpotifyAppRemote.getPlayerApi().play(uri);
        }
    }

    /**
     * Pauzeert de huidige track.
     */
    public void Pause() {
        if (mSpotifyAppRemote != null) {
            mSpotifyAppRemote.getPlayerApi().pause();
        }
    }

    /**
     * Stopt de muziekweergave (werkt als pauze, Spotify heeft geen echte stop).
     */
    public void Stop() {
        Pause(); // Spotify kent geen aparte 'stop'
    }

    /**
     * Verbreekt de Spotify-verbinding.
     */
    public void Disconnect() {
        if (mSpotifyAppRemote != null) {
            SpotifyAppRemote.disconnect(mSpotifyAppRemote);
            mSpotifyAppRemote = null;
        }
    }

    /**
     * Controleert of er verbinding is met Spotify.
     * 
     * @return true als verbonden, false als niet verbonden
     */
    public boolean IsConnected() {
        return mSpotifyAppRemote != null;
    }
}

<?xml version="1.0" encoding="UTF-8"?>
<root>
    <Class>
        <Name>com.qrmusic.spotify.SpotifyWrapper</Name>
        <ShortName>SpotifyWrapper</ShortName>
        <HasInit>true</HasInit>
        <IgnoreMaster>true</IgnoreMaster>

        <Method>
            <Name>Initialize</Name>
            <ReturnType>void</ReturnType>
            <Parameter>
                <Name>ba</Name>
                <Type>anywheresoftware.b4a.BA</Type>
            </Parameter>
            <Parameter>
                <Name>eventName</Name>
                <Type>String</Type>
            </Parameter>
        </Method>

        <Method>
            <Name>SearchTrack</Name>
            <ReturnType>String</ReturnType>
            <Parameter>
                <Name>query</Name>
                <Type>String</Type>
            </Parameter>
        </Method>

        <Method>
            <Name>PlayTrack</Name>
            <ReturnType>boolean</ReturnType>
            <Parameter>
                <Name>trackId</Name>
                <Type>String</Type>
            </Parameter>
        </Method>

    </Class>
</root>