qml_dup demo
本帖最后由 Hp_2018 于 2019-12-7 09:42 编辑来源于网络，亲试可用。
//--------------------MYUDP_H ------------------------------
#ifndef MYUDP_H
#define MYUDP_H
#include <QObject>
#include <QUdpSocket>
class MyUDP : public QObject
{
Q_OBJECT
Q_PROPERTY(QByteArray type READ type WRITE setType NOTIFY typeChanged)
public:
explicit MyUDP(QObject *parent = 0);
void SayHello();
QByteArray type();
void setType(const QByteArray &t);
signals:
void typeChanged();
public slots:
void readyRead();
private:
QUdpSocket *socket;
QByteArray _type;
};
#endif
//------------------MyUDP.cpp------------------------------------
#include "myudp.h"
MyUDP::MyUDP(QObject *parent) : QObject(parent)
{
socket = new QUdpSocket(this);
socket->bind(QHostAddress::LocalHost, 5824);
connect(socket,SIGNAL(readyRead()),this, SLOT(readyRead()));
}
// send message in client mode
void MyUDP::SayHello()
{
QByteArray Data;
Data.append("--Test Message UDP");
socket->writeDatagram(Data,QHostAddress::LocalHost,5824);
// 192.168.0.100
}
// ---------------------main.c-----------------------------------
#include <QGuiApplication>
#include <QQmlApplicationEngine>
#include <QCoreApplication>
#include "myudp.h"
int main(int argc, char *argv[])
{
#if defined(Q_OS_WIN)
QCoreApplication::setAttribute(Qt::AA_EnableHighDpiScaling);
#endif
QGuiApplication app(argc, argv);
QQmlApplicationEngine engine;
qmlRegisterType<MyUDP>("MyUDP", 1,0, "MyUDP");
engine.load(QUrl(QStringLiteral("qrc:/main.qml")));
if (engine.rootObjects().isEmpty())
return -1;
// MyUDP client; //去掉注释 就是 client
// client.SayHello(); //去掉注释 就是 client
return app.exec();
}
//-------------------main.qml-------------------------------
import QtQuick 2.9
import QtQuick.Window 2.2
import MyUDP 1.0
Window {
visible: true
//color: "black"
width: 320
height: 240
title: qsTr("DUP_Server")
Text {
id: txt
text: qsTr("Hello DUP_Server")
anchors.centerIn: parent
}
MyUDP{
id: myUdp
onTypeChanged: {
txt.text = "Recived Msg:" + type;
console.log("recived massage is " + type)
}
}
}void MyUDP::readyRead()
{
QByteArray Buffer;
Buffer.resize(socket->pendingDatagramSize());;
QHostAddress sender;
quint16 senderPort;
socket->readDatagram(Buffer.data(),Buffer.size(), &sender, &senderPort);
qDebug()<< "Message:" << Buffer;
setType(Buffer);
}
QByteArray MyUDP::type()
{
return _type;
}
void MyUDP::setType(const QByteArray &t)
{
_type = t;
emit typeChanged();
}
//---------------------------Qml_Dup_server.pro----------------------------------------
QT += quick networkcore
CONFIG += c++11
# The following define makes your compiler emit warnings if you use
# any feature of Qt which as been marked deprecated (the exact warnings
# depend on your compiler). Please consult the documentation of the
# deprecated API in order to know how to port your code away from it.
DEFINES += QT_DEPRECATED_WARNINGS
# You can also make your code fail to compile if you use deprecated APIs.
# In order to do so, uncomment the following line.
# You can also select to disable deprecated APIs only up to a certain version of Qt.
#DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0x060000 # disables all the APIs deprecated before Qt 6.0.0
SOURCES += main.cpp \
myudp.cpp
RESOURCES += qml.qrc
# Additional import path used to resolve QML modules in Qt Creator's code model
QML_IMPORT_PATH =
# Additional import path used to resolve QML modules just for Qt Quick Designer
QML_DESIGNER_IMPORT_PATH =
# Default rules for deployment.
qnx: target.path = /tmp/$${TARGET}/bin
else: unix:!android: target.path = /opt/$${TARGET}/bin
!isEmpty(target.path): INSTALLS += target
HEADERS += \
myudp.h
DISTFILES += \
android/AndroidManifest.xml \
android/gradle/wrapper/gradle-wrapper.jar \
android/gradlew \
android/res/values/libs.xml \
android/build.gradle \
android/gradle/wrapper/gradle-wrapper.properties \
android/gradlew.bat
ANDROID_PACKAGE_SOURCE_DIR = $$PWD/android
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