In-App purchasing demo

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 #include "../inapp/inappproduct.h"
 #include "androidinapptransaction.h"
 #include "androidinapppurchasebackend.h"

 AndroidInAppTransaction::AndroidInAppTransaction(const QString &signature,
                                                    const QString &data,
                                                    const QString &purchaseToken,
                                                    const QString &orderId,
                                                    TransactionStatus status,
                                                    InAppProduct *product,
                                                    const QDateTime &timestamp,
                                                    FailureReason failureReason,
                                                    const QString &errorString,
                                                    QObject *parent)
     : InAppTransaction(status, product, parent)
     , m_signature(signature)
     , m_data(data)
     , m_purchaseToken(purchaseToken)
     , m_orderId(orderId)
     , m_timestamp(timestamp)
     , m_errorString(errorString)
     , m_failureReason(failureReason)
 {
     Q_ASSERT(qobject_cast<AndroidInAppPurchaseBackend *>(parent) != 0);
 }

 QString AndroidInAppTransaction::orderId() const
 {
     return m_orderId;
 }

 QDateTime AndroidInAppTransaction::timestamp() const
 {
     return m_timestamp;
 }

 QString AndroidInAppTransaction::errorString() const
 {
     return m_errorString;
 }

 InAppTransaction::FailureReason AndroidInAppTransaction::failureReason() const
 {
     return m_failureReason;
 }

 QString AndroidInAppTransaction::platformProperty(const QString &propertyName) const
 {
     if (propertyName.compare(QStringLiteral("AndroidSignature"), Qt::CaseInsensitive) == 0)
         return m_signature;
     else if (propertyName.compare(QStringLiteral("AndroidPurchaseData"), Qt::CaseInsensitive) == 0)
         return m_data;
     else
         return InAppTransaction::platformProperty(propertyName);
 }

 void AndroidInAppTransaction::finalize()
 {
     AndroidInAppPurchaseBackend *backend = qobject_cast<AndroidInAppPurchaseBackend *>(parent());
     if (status() == PurchaseApproved || status() == PurchaseRestored) {
         if (product()->productType() == InAppProduct::Consumable){
             backend->consumeTransaction(m_purchaseToken);}
         else if (product()->productType() == InAppProduct::Unlockable){
             backend->registerFinalizedUnlockable(m_purchaseToken);}
         else {
             qWarning("Product type not implemented.");
         }
     }

     deleteLater();
 }