qt-everywhere-src-5.15.1/qtconnectivity/src/nfc/android/androidjninfc.cpp

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** This file is part of the QtNfc module of the Qt Toolkit.
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#include "androidjninfc_p.h"

#include <android/log.h>

#include "androidmainnewintentlistener_p.h"

#include "qglobal.h"
#include "qbytearray.h"
#include "qdebug.h"

static const char *nfcClassName = "org/qtproject/qt5/android/nfc/QtNfc";

static AndroidNfc::MainNfcNewIntentListener mainListener;

QT_BEGIN_ANDROIDNFC_NAMESPACE

bool startDiscovery()
{
    return QAndroidJniObject::callStaticMethod<jboolean>(nfcClassName,"start");
}

bool isAvailable()
{
    return QAndroidJniObject::callStaticMethod<jboolean>(nfcClassName,"isAvailable");
}

bool isSupported()
{
    return QAndroidJniObject::callStaticMethod<jboolean>(nfcClassName,"isSupported");
}

bool stopDiscovery()
{
    return QAndroidJniObject::callStaticMethod<jboolean>(nfcClassName,"stop");
}

QAndroidJniObject getStartIntent()
{
    QAndroidJniObject ret = QAndroidJniObject::callStaticObjectMethod(nfcClassName, "getStartIntent", "()Landroid/content/Intent;");
    return ret;
}

bool registerListener(AndroidNfcListenerInterface *listener)
{
    return mainListener.registerListener(listener);
}

bool unregisterListener(AndroidNfcListenerInterface *listener)
{
    return mainListener.unregisterListener(listener);
}

QAndroidJniObject getTag(const QAndroidJniObject &intent)
{
    QAndroidJniObject extraTag = QAndroidJniObject::getStaticObjectField("android/nfc/NfcAdapter", "EXTRA_TAG", "Ljava/lang/String;");
    QAndroidJniObject tag = intent.callObjectMethod("getParcelableExtra", "(Ljava/lang/String;)Landroid/os/Parcelable;", extraTag.object<jstring>());
    return tag;
}

QT_END_ANDROIDNFC_NAMESPACE

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

    JNIEnv* env;
    if (vm->GetEnv(reinterpret_cast<void**>(&env), JNI_VERSION_1_6) != JNI_OK) {
        return -1;
    }

    return JNI_VERSION_1_6;
}