CommonAPI的使用1

if (pSource->isUSB())
    {
        swapSongs(categoryType);

        bool isFolderUpDownAvailable{false};
        if (categoryType == CategoryType::FOLDER_AUDIO)
        {
            CommonAPI::CallStatus callStatus{ CommonAPI::CallStatus::UNKNOWN };
            m_mediaPlayerProxy->getIsFolderUpDownAvailableAttribute().getValue(callStatus, isFolderUpDownAvailable);
            if (callStatus != CommonAPI::CallStatus::SUCCESS)
            {
                isFolderUpDownAvailable = false;
            }
        }

        m_indications.SetIndication(IAudioPlayer::IND_FolderUpDownAvailable, isFolderUpDownAvailable);
        m_pAudioPlayerEvent->notifyIndicationsChanged(m_indications);
    }

package com.clarion.ivi.media

import com.clarion.ivi.media.* from "MediaCAPITypes.fidl"
import com.clarion.ivi.media.* from "PlayerTypes.fidl"

interface MediaPlayer
{
    version { major 1 minor 0 }
        
    attribute Boolean isFolderUpDownAvailable readonly

void MediaStubAttributeHandler::IsFolderDownUpAvailableAttributeHandler::acceptEvent(const MediaEvent& event)
{
    DLT_LOG_FCN_CXX(StubAdapterContext, DLT_LOG_DEBUG, "Process event:", static_cast(event.evID));

    switch (event.evID)
    {
        case eMediaEvents::MEDIAE_DM_DEVICE_DISCONNECTED:
        {
            const auto strongMediaEvent = getEvent<:mediae_dm_device_disconnected>(event);

            if (strongMediaEvent.device.type == MediaTypes::DeviceType::USB)
            {
                DLT_LOG_FCN_CXX(StubAdapterContext, DLT_LOG_DEBUG
                                , "FolderUpDown disabled for"
                                , "source id:", strongMediaEvent.device.id);

                m_mediaPlayerStub->setIsFolderUpDownAvailableAttribute(false);
            }

            break;
        }

        case eMediaEvents::MEDIAE_IS_FOLDER_UP_DOWN:
        {
            auto strongMediaEvent = getEvent<:mediae_is_folder_up_down>(event);

            DLT_LOG_FCN_CXX(StubAdapterContext, DLT_LOG_DEBUG
                            , "isFolderUpDown available:", strongMediaEvent.isFolderUpDown);

            m_mediaPlayerStub->setIsFolderUpDownAvailableAttribute(strongMediaEvent.isFolderUpDown);

            break;
        }
        default:
            break;
    }
}