Method init

tests/cpp-tests/Source/AudioEngineTest/AudioEngineTest.cpp:229–386

AudioControlTest

// AudioControlTest
bool AudioControlTest::init()
{
    auto ret          = AudioEngineTestDemo::init();
    _audioID          = AudioEngine::INVALID_AUDIO_ID;
    _loopEnabled      = false;
    _volume           = 1.0f;
    _duration         = AudioEngine::TIME_UNKNOWN;
    _timeRatio        = 0.0f;
    _updateTimeSlider = true;
    _isStopped        = false;

    std::string fontFilePath = "fonts/arial.ttf";

    auto& layerSize = this->getContentSize();

    _playOverLabel = Label::createWithSystemFont("Play Over", "", 30);
    _playOverLabel->setPosition(Vec2(layerSize / 2) + Vec2(0, 30));
    _playOverLabel->setVisible(false);
    addChild(_playOverLabel, 99999);

    auto playItem = TextButton::create("play", [&](TextButton* button) {
        if (_audioID == AudioEngine::INVALID_AUDIO_ID)
        {
            _audioID = AudioEngine::play2d("background.mp3", _loopEnabled, _volume);

            if (_audioID != AudioEngine::INVALID_AUDIO_ID)
            {
                _isStopped = false;

                button->setEnabled(false);
                AudioEngine::setFinishCallback(_audioID, [&](int id, std::string_view filePath) {
                    AXLOGD("_audioID({}), _isStopped:({}), played over!!!", _audioID, _isStopped);

                    _playOverLabel->setVisible(true);

                    scheduleOnce([&](float dt) { _playOverLabel->setVisible(false); }, 2.0f, "hide_play_over_label");

                    assert(!_isStopped);  // Stop audio should not trigger finished callback
                    _audioID = AudioEngine::INVALID_AUDIO_ID;
                    ((TextButton*)_playItem)->setEnabled(true);

                    _timeRatio = 0.0f;
                    ((SliderEx*)_timeSlider)->setRatio(_timeRatio);
                });
            }
        }
    });
    _playItem     = playItem;
    playItem->setPosition(layerSize.width * 0.3f, layerSize.height * 0.8f);
    addChild(playItem);

    auto stopItem = TextButton::create("stop", [&](TextButton* button) {
        if (_audioID != AudioEngine::INVALID_AUDIO_ID)
        {
            _isStopped = true;
            AudioEngine::stop(_audioID);

            _audioID = AudioEngine::INVALID_AUDIO_ID;