1.解释说明
1- qt中一般是使用信号槽来绑定对应的事件
2- 可以在初始化中调用connect来调用
3- 这里分别用头文件、源文件、界面文件去写示例
2.头文件.h
cpp
#ifndef MAINWINDOW_H
#define MAINWINDOW_H
#include <QMainWindow>
QT_BEGIN_NAMESPACE
namespace Ui {
class MainWindow;
}
QT_END_NAMESPACE
class MainWindow : public QMainWindow
{
Q_OBJECT
public:
MainWindow(QWidget *parent = nullptr);
~MainWindow();
private slots:
void on_pushButton_2_clicked();
void on_pushButton_clicked();
void on_radioButton_clicked();
private:
Ui::MainWindow *ui;
};
#endif // MAINWINDOW_H
3.源文件.cpp
cpp
#include "mainwindow.h"
#include "ui_mainwindow.h"
MainWindow::MainWindow(QWidget *parent)
: QMainWindow(parent)
, ui(new Ui::MainWindow)
{
ui->setupUi(this);
//此处就为信号槽,连接一个对象和另一个对象的槽;当pushButton按钮进行点击时,则触发MainWindow::on_pushButton_2_clicked()的方法。
QObject::connect(ui->pushButton, &QPushButton::clicked, this, & MainWindow::on_pushButton_2_clicked);
}
MainWindow::~MainWindow()
{
delete ui;
}
void MainWindow::on_pushButton_2_clicked()
{
}
void MainWindow::on_pushButton_clicked()
{
}
void MainWindow::on_radioButton_clicked()
{
}
4.界面文件.ui
cpp
<?xml version="1.0" encoding="UTF-8"?>
<ui version="4.0">
<class>MainWindow</class>
<widget class="QMainWindow" name="MainWindow">
<property name="geometry">
<rect>
<x>0</x>
<y>0</y>
<width>300</width>
<height>300</height>
</rect>
</property>
<property name="windowTitle">
<string>MainWindow</string>
</property>
<widget class="QWidget" name="centralwidget">
<widget class="QRadioButton" name="radioButton">
<property name="geometry">
<rect>
<x>80</x>
<y>250</y>
<width>72</width>
<height>16</height>
</rect>
</property>
<property name="text">
<string>RadioButton</string>
</property>
</widget>
<widget class="QWidget" name="verticalLayoutWidget">
<property name="geometry">
<rect>
<x>20</x>
<y>60</y>
<width>160</width>
<height>80</height>
</rect>
</property>
<layout class="QVBoxLayout" name="verticalLayout">
<item>
<widget class="QPushButton" name="pushButton_2">
<property name="text">
<string>PushButton</string>
</property>
</widget>
</item>
<item>
<widget class="QPushButton" name="pushButton">
<property name="text">
<string>PushButton</string>
</property>
</widget>
</item>
</layout>
</widget>
</widget>
<widget class="QStatusBar" name="statusbar"/>
</widget>
<resources/>
<connections/>
</ui>