I have Tcp Servrer written in C ++, Qt, and I need my Android application to connect to the server to send and read the received data, but I can't figure out how to implement it. I tried to use Qt Jambi , but it turned out that this library does not support the development of Android applications, I also tried to use my Android Qt library application, which had methods to connect to the server, read and send, but the socket did not connect to the server.

Server.h

class Server : public QTcpServer { Q_OBJECT public: Server(QObject *parent = 0); ~Server(); void startServer(); protected: void incomingConnection( qintptr handle ); private: QThreadPool *pool; };

Server.cpp

 Server::Server(QObject *parent) : QTcpServer(parent) { pool = new QThreadPool(this); pool->setMaxThreadCount(5); } Server::~Server() { delete pool; } void Server::startServer() { if(listen(QHostAddress::Any, 8080)){ qDebug() << "Server started"; }else{ qDebug() << "Server did not start!"; } } void Server::incomingConnection(qintptr handle) { Runnable *runnable = new Runnable(); runnable->setAutoDelete(true); connect(runnable->dataBase, SIGNAL(sendMessageToEmail(QStringList)), this, SLOT(sendMail(QStringList))); runnable->socketDescriptor = handle; pool->start(runnable); }

Runnable.cpp

  ... void Runnable::run() { if(!socketDescriptor){ return; } socket = new QTcpSocket; socket->setSocketDescriptor(socketDescriptor); QObject::connect(&(*socket), SIGNAL(disconnected()), this, SLOT(disconected())); outStream << quint16(0); while(socket->isOpen()) { socket->waitForReadyRead(); if(socket->bytesAvailable() == 0){ continue; } onReadyRead(); } } void Runnable::sendToUser() { outStream.device()->seek(0); outStream << quint16(arrByteOut.size() - sizeof(quint16)); socket->write(arrByteOut); socket->waitForBytesWritten(); } void Runnable::onReadyRead() { QDataStream in(socket); in.setVersion(QDataStream::Qt_5_5); if(socket->isOpen()) { if(nextBlockSize == 0){ in >> nextBlockSize; } if(socket->bytesAvailable() < nextBlockSize){ return; } if(socket->isOpen()){ queryDefinition(in); nextBlockSize = 0; } } } ...

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