qt-everywhere-src-5.14.1/qtconnectivity/src/bluetooth/android/servicediscoverybroadcastreceiver.cpp

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#include "android/servicediscoverybroadcastreceiver_p.h"
#include <QtCore/QLoggingCategory>
#include <QtCore/private/qjnihelpers_p.h>
#include <QtAndroidExtras/QAndroidJniEnvironment>
#include <QtBluetooth/QBluetoothAddress>
#include <QtBluetooth/QBluetoothDeviceInfo>
#include "android/jni_android_p.h"

QT_BEGIN_NAMESPACE

Q_DECLARE_LOGGING_CATEGORY(QT_BT_ANDROID)

ServiceDiscoveryBroadcastReceiver::ServiceDiscoveryBroadcastReceiver(QObject* parent): AndroidBroadcastReceiver(parent)
{
    if (QtAndroidPrivate::androidSdkVersion() >= 15)
        addAction(valueForStaticField(JavaNames::BluetoothDevice, JavaNames::ActionUuid)); //API 15+
}

void ServiceDiscoveryBroadcastReceiver::onReceive(JNIEnv *env, jobject context, jobject intent)
{
    Q_UNUSED(context);
    Q_UNUSED(env);

    QAndroidJniObject intentObject(intent);
    const QString action = intentObject.callObjectMethod("getAction", "()Ljava/lang/String;").toString();

    qCDebug(QT_BT_ANDROID) << "ServiceDiscoveryBroadcastReceiver::onReceive() - event:" << action;

    if (action == valueForStaticField(JavaNames::BluetoothDevice,
                                      JavaNames::ActionUuid).toString()) {

        QAndroidJniObject keyExtra = valueForStaticField(JavaNames::BluetoothDevice,
                                                         JavaNames::ExtraUuid);
        QAndroidJniObject parcelableUuids = intentObject.callObjectMethod(
                                                "getParcelableArrayExtra",
                                                "(Ljava/lang/String;)[Landroid/os/Parcelable;",
                                                keyExtra.object<jstring>());
        if (!parcelableUuids.isValid()) {
            emit uuidFetchFinished(QBluetoothAddress(), QList<QBluetoothUuid>());
            return;
        }
        const QList<QBluetoothUuid> result = ServiceDiscoveryBroadcastReceiver::convertParcelableArray(parcelableUuids);

        keyExtra = valueForStaticField(JavaNames::BluetoothDevice, JavaNames::ExtraDevice);
        QAndroidJniObject bluetoothDevice =
        intentObject.callObjectMethod("getParcelableExtra",
                                  "(Ljava/lang/String;)Landroid/os/Parcelable;",
                                  keyExtra.object<jstring>());
        QBluetoothAddress address;
        if (bluetoothDevice.isValid()) {
            address = QBluetoothAddress(bluetoothDevice.callObjectMethod<jstring>("getAddress").toString());
            emit uuidFetchFinished(address, result);
        } else {
            emit uuidFetchFinished(QBluetoothAddress(), QList<QBluetoothUuid>());
        }
    }
}

QList<QBluetoothUuid> ServiceDiscoveryBroadcastReceiver::convertParcelableArray(const QAndroidJniObject &parcelUuidArray)
{
    QList<QBluetoothUuid> result;
    QAndroidJniEnvironment env;

    jobjectArray parcels = parcelUuidArray.object<jobjectArray>();
    if (!parcels)
        return result;

    jint size = env->GetArrayLength(parcels);
    for (int i = 0; i < size; i++) {
        auto p = QAndroidJniObject::fromLocalRef(env->GetObjectArrayElement(parcels, i));

        QBluetoothUuid uuid(p.callObjectMethod<jstring>("toString").toString());
        //qCDebug(QT_BT_ANDROID) << uuid.toString();
        result.append(uuid);
    }

    return result;
}

QT_END_NAMESPACE