In-App purchasing demo | Qt 6.2

- Qt 6.2
- In-App purchasing demo
- Qt 6.2.3 Reference Documentation

# In-App purchasing demo

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     #include <QtCore/qdatetime.h>
     #include <jni.h>
     #include <QJniObject>

     #include "androidinapppurchasebackend.h"

     QT_USE_NAMESPACE

     static void purchasedProductsQueried(JNIEnv *, jclass, jlong nativePointer)
     {
         AndroidInAppPurchaseBackend *backend = reinterpret_cast<AndroidInAppPurchaseBackend *>(nativePointer);
         QMetaObject::invokeMethod(backend,
                                   "registerReady",
                                   Qt::AutoConnection);
     }

     static void registerProduct(JNIEnv *, jclass, jlong nativePointer, jstring productId, jstring price, jstring title, jstring description)
     {
         AndroidInAppPurchaseBackend *backend = reinterpret_cast<AndroidInAppPurchaseBackend *>(nativePointer);
         QMetaObject::invokeMethod(backend,
                                   "registerProduct",
                                   Qt::AutoConnection,
                                   Q_ARG(QString, QJniObject(productId).toString()),
                                   Q_ARG(QString, QJniObject(price).toString()),
                                   Q_ARG(QString, QJniObject(title).toString()),
                                   Q_ARG(QString, QJniObject(description).toString()));
     }

     static void registerPurchased(JNIEnv *, jclass, jlong nativePointer, jstring identifier,
                                   jstring signature, jstring data, jstring purchaseToken, jstring orderId, jlong timestamp)
     {
         QDateTime dateTime = QDateTime::fromMSecsSinceEpoch(qint64(timestamp));
         dateTime.setTimeSpec(Qt::LocalTime);

         AndroidInAppPurchaseBackend *backend = reinterpret_cast<AndroidInAppPurchaseBackend *>(nativePointer);
         QMetaObject::invokeMethod(backend,
                                   "registerPurchased",
                                   Qt::AutoConnection,
                                   Q_ARG(QString, QJniObject(identifier).toString()),
                                   Q_ARG(QString, QJniObject(signature).toString()),
                                   Q_ARG(QString, QJniObject(data).toString()),
                                   Q_ARG(QString, QJniObject(purchaseToken).toString()),
                                   Q_ARG(QString, QJniObject(orderId).toString()),
                                   Q_ARG(QDateTime, dateTime));
     }

     static void purchaseSucceeded(JNIEnv *, jclass, jlong nativePointer, jint requestCode,
                                   jstring signature, jstring data, jstring purchaseToken, jstring orderId, jlong timestamp)
     {
         QDateTime dateTime = QDateTime::fromMSecsSinceEpoch(qint64(timestamp));
         dateTime.setTimeSpec(Qt::LocalTime);

         AndroidInAppPurchaseBackend *backend = reinterpret_cast<AndroidInAppPurchaseBackend *>(nativePointer);
         QMetaObject::invokeMethod(backend,
                                   "purchaseSucceeded",
                                   Qt::AutoConnection,
                                   Q_ARG(int, int(requestCode)),
                                   Q_ARG(QString, QJniObject(signature).toString()),
                                   Q_ARG(QString, QJniObject(data).toString()),
                                   Q_ARG(QString, QJniObject(purchaseToken).toString()),
                                   Q_ARG(QString, QJniObject(orderId).toString()),
                                   Q_ARG(QDateTime, dateTime));
     }

     static void purchaseFailed(JNIEnv *, jclass, jlong nativePointer, jint requestCode, jint failureReason, jstring errorString)
     {
         AndroidInAppPurchaseBackend *backend = reinterpret_cast<AndroidInAppPurchaseBackend *>(nativePointer);
         QMetaObject::invokeMethod(backend,
                                   "purchaseFailed",
                                   Qt::AutoConnection,
                                   Q_ARG(int, int(requestCode)),
                                   Q_ARG(int, int(failureReason)),
                                   Q_ARG(QString, QJniObject(errorString).toString()));
     }

     static JNINativeMethod methods[] = {
         {"purchasedProductsQueried", "(J)V", (void *)purchasedProductsQueried},
         {"registerProduct", "(JLjava/lang/String;Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;)V", (void *)registerProduct},
         {"registerPurchased", "(JLjava/lang/String;Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;J)V", (void *)registerPurchased},
         {"purchaseSucceeded", "(JILjava/lang/String;Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;J)V", (void *)purchaseSucceeded},
         {"purchaseFailed", "(JIILjava/lang/String;)V", (void *)purchaseFailed}
     };

     JNIEXPORT jint JNICALL JNI_OnLoad(JavaVM *vm, void *)
     {
         static bool initialized = false;
         if (initialized){
             return JNI_VERSION_1_6;}
         initialized = true;

         JNIEnv *env;
         if (vm->GetEnv((void **)&env, JNI_VERSION_1_6) != JNI_OK){
             return JNI_ERR;}

         jclass clazz = env->FindClass("org/qtproject/qt/android/purchasing/InAppPurchase");
         if (!clazz){
             return JNI_ERR;}

         if (env->RegisterNatives(clazz, methods, sizeof(methods) / sizeof(methods[0])) < 0){
             return JNI_ERR;}

         return JNI_VERSION_1_6;
     }