QtQuick核⼼编程（1）1.1 两种启动模式
// 第1种: QQmlApplicationEngine + Item
#include<QGuiApplication>
#include<QQuickView>
int main(int argc,char*argv[])
{
QCoreApplication::tAttribute(Qt::AA_EnableHighDpiScaling);
QGuiApplication app(argc, argv);
QQuickView view;
view.tSource(QUrl("qrc:/main.qml"));
view.show();
胰腺炎不能吃什么食物
();
}
电脑发热// -------- main.qml ------------------
import QtQuick 2.14物业管理委员会
Item {
width:640让我们荡起双桨教案
米字旁一个山
height:480
优秀个人简历Text {
font.pixelSize:50
color:"blue"
text:"Hello World"
}
}
// 第2种: QQmlApplicationEngine + Window
#include<QGuiApplication>
#include<QQmlApplicationEngine>
int main(int argc,char*argv[])
{
QCoreApplication::tAttribute(Qt::AA_EnableHighDpiScaling);
QGuiApplication app(argc, argv);
QQmlApplicationEngine engine;
const QUrl url(QStringLiteral("qrc:/main.qml"));
QObject::connect(&engine,&QQmlApplicationEngine::objectCreated,
&app,[url](QObject *obj,const QUrl &objUrl){
if(!obj && url == objUrl)
QCoreApplication::exit(-1);
}, Qt::QueuedConnection);
engine.load(url);
();
}
// -------- main.qml ------------------
import QtQuick 2.14
import QtQuick.Window 2.14//必须导⼊Window模块
直接成本
Window {
visible:true
width:640
height:480
title:qsTr("Hello World")
}
// 第2"种: QQmlApplicationEngine + ApplicationWindow
#include<QGuiApplication>
#include<QQmlApplicationEngine>
int main(int argc,char*argv[])
{
QCoreApplication::tAttribute(Qt::AA_EnableHighDpiScaling);
QGuiApplication app(argc, argv);
QQmlApplicationEngine engine;
const QUrl url(QStringLiteral("qrc:/main.qml"));
QObject::connect(&engine,&QQmlApplicationEngine::objectCreated, &app,[url](QObject *obj,const QUrl &objUrl){ if(!obj && url == objUrl)
QCoreApplication::exit(-1);
}, Qt::QueuedConnection);
engine.load(url);
();
}
// -------- main.qml ------------------
import QtQuick 2.14
import QtQuick.Controls 2.14//必须导⼊QtQuick.Controls模块ApplicationWindow {// Window ⼦类
visible: true
width:640
height:480
menuBar: MenuBar{//菜单栏
宿舍规章制度
}
header: ToolBar{//⼯具栏
}
footer: TabBar{//状态栏
}
}
1.2 案例：QML 实现登录
