一、效果预览

二、代码

cpp文件

//listView右键菜单
void MainWindow::Rightclicklistview()
{//初始化一级菜单TotalRightclick =new QMenu(this);AddDevice = new QMenu(this);upDevice = new QAction(this);DownDevice = new QAction(this);Delete = new QAction(this);EditDevice = new QAction(this);//初始化二级菜单DeviceIS6201A =new QMenu(this);DeviceIS6202A = new QMenu(this);DeviceIS6203A = new QMenu(this);//初始化三级菜单DeviceIS6201A_IIC = new QAction(this);DeviceIS6201A_PMBV1 = new QAction(this);DeviceIS6201A_PMBV2= new QAction(this);//各级图标//一级图标QIcon iconadd = QIcon(":/Res/tools/add.png");  //加载图片QIcon iconUp = QIcon(":/Res/tools/moveup.png");  //加载图片QIcon iconDown = QIcon(":/Res/tools/movedown.png");  //加载图片QIcon iconDelete = QIcon(":/Res/tools/delete.png");  //加载图片QIcon iconEdit = QIcon(":/Res/tools/paste.png");  //加载图片//二级图标QIcon iconUser = QIcon(":/Res/tools/user.png");  //加载图片//三级图标QIcon iconChip = QIcon(":/Res/tools/xinpian.png");  //加载图片//子对象在父对象里面从属关系匹配AddDevice  = TotalRightclick->addMenu(iconadd,"  Add Device");upDevice = TotalRightclick->addAction(iconUp,"  Move Up Device");DownDevice = TotalRightclick->addAction(iconDown,"  Move Down Device");Delete = TotalRightclick->addAction(iconDelete,"  Delete Device");EditDevice = TotalRightclick->addAction(iconEdit,"  Edit Device");DeviceIS6201A = AddDevice->addMenu(iconUser,"  IS6201A");DeviceIS6202A = AddDevice->addMenu(iconUser,"  IS6202A");DeviceIS6203A = AddDevice->addMenu(iconUser,"  IS6203A");DeviceIS6201A_IIC = DeviceIS6201A->addAction(iconChip,  "  IS6201A_IIC");DeviceIS6201A_PMBV1 = DeviceIS6201A->addAction(iconChip,"  IS6201A_PMBV1");DeviceIS6201A_PMBV2= DeviceIS6201A->addAction(iconChip, "  IS6201A_PMBV2");//给动作设置信号槽connect( upDevice, &QAction::triggered, [=](){qDebug()<<"I'm upDevice";});connect( DownDevice, &QAction::triggered, [=](){qDebug()<<"I'm DownDevice";});//给动作设置信号槽connect( Delete, &QAction::triggered, [=](){}qDebug()<<"I'm DeleteAction";});connect( EditDevice, &QAction::triggered, [=](){qDebug()<<"I'm btnSecondAction";});connect( DeviceIS6201A_PMBV1, &QAction::triggered, [=](){qDebug()<<"I'm DeviceIS6201A_PMBV1";});connect( DeviceIS6201A_PMBV2, &QAction::triggered, [=](){qDebug()<<"I'm DeviceIS6201A_PMBV2";});//绑定控件显示右键菜单给控件设置上下文菜单策略ui->listView->setContextMenuPolicy(Qt::CustomContextMenu);//鼠标右键点击控件时会发送一个void QWidget::customContextMenuRequested(const QPoint &pos)信号//给信号设置相应的槽函数connect(ui->listView,&QLabel::customContextMenuRequested,[=](const QPoint &pos){qDebug()<exec(QCursor::pos());});}

h文件

private:void Rightclicklistview();// 声明动作QAction * upDevice;QAction * DownDevice;QAction * Delete;QAction * EditDevice;QAction * DeviceIS6201A_IIC;QAction * DeviceIS6201A_PMBV1;QAction * DeviceIS6201A_PMBV2;//声明菜单QMenu * TotalRightclick;QMenu * AddDevice;QMenu * DeviceIS6201A;QMenu * DeviceIS6202A;QMenu * DeviceIS6203A;

文档解释参考一

参考二

参考三