QToolBox类实现抽屉效果

drawer.h

#ifndef DRAWER_H
#define DRAWER_H

#include <QToolBox>
#include <QToolButton>
#include <QGroupBox>
#include <QVBoxLayout>

class Drawer : public QToolBox
{
    
    
    Q_OBJECT
public:
    Drawer(QWidget *parent=nullptr, Qt::WindowFlags f=nullptr);
    ~Drawer();
private:
    QToolButton *toolBtn1_1;
    QToolButton *toolBtn1_2;
    QToolButton *toolBtn1_3;
    QToolButton *toolBtn1_4;
    QToolButton *toolBtn1_5;
    QToolButton *toolBtn2_1;
    QToolButton *toolBtn2_2;
    QToolButton *toolBtn3_1;
    QToolButton *toolBtn3_2;
};

#endif // DRAWER_H

drawer.cpp

#include "drawer.h"

Drawer::Drawer(QWidget *parent, Qt::WindowFlags f):QToolBox(parent, f)
{
    
    
    setWindowTitle("My QQ");

    toolBtn1_1 = new QToolButton();
    toolBtn1_1->setText("小明");
    toolBtn1_1->setIcon(QPixmap("11.png"));
    toolBtn1_1->setIconSize(QPixmap("11.png").size());
    toolBtn1_1->setAutoRaise(true);
    toolBtn1_1->setToolButtonStyle(Qt::ToolButtonTextBesideIcon);

    toolBtn1_2 = new QToolButton();
    toolBtn1_2->setText("小红");
    toolBtn1_2->setIcon(QPixmap("12.png"));
    toolBtn1_2->setIconSize(QPixmap("12.png").size());
    toolBtn1_2->setAutoRaise(true);
    toolBtn1_2->setToolButtonStyle(Qt::ToolButtonTextBesideIcon);

    toolBtn1_3 = new QToolButton();
    toolBtn1_3->setText("小军");
    toolBtn1_3->setIcon(QPixmap("13.png"));
    toolBtn1_3->setIconSize(QPixmap("13.png").size());
    toolBtn1_3->setAutoRaise(true);
    toolBtn1_3->setToolButtonStyle(Qt::ToolButtonTextBesideIcon);

    toolBtn1_4 = new QToolButton();
    toolBtn1_4->setText("小王");
    toolBtn1_4->setIcon(QPixmap("14.png"));
    toolBtn1_4->setIconSize(QPixmap("14.png").size());
    toolBtn1_4->setAutoRaise(true);
    toolBtn1_4->setToolButtonStyle(Qt::ToolButtonTextBesideIcon);

    toolBtn1_5 = new QToolButton();
    toolBtn1_5->setText("小李");
    toolBtn1_5->setIcon(QPixmap("15.png"));
    toolBtn1_5->setIconSize(QPixmap("15.png").size());
    toolBtn1_5->setAutoRaise(true);
    toolBtn1_5->setToolButtonStyle(Qt::ToolButtonTextBesideIcon);

    QGroupBox *groupBox1 = new QGroupBox();
    QVBoxLayout *layout1 = new QVBoxLayout(groupBox1);
    layout1->setMargin(10);
    layout1->setAlignment(Qt::AlignHCenter);
    layout1->addWidget(toolBtn1_1);
    layout1->addWidget(toolBtn1_2);
    layout1->addWidget(toolBtn1_3);
    layout1->addWidget(toolBtn1_4);
    layout1->addWidget(toolBtn1_5);
    layout1->addStretch();

    toolBtn2_1 = new QToolButton();
    toolBtn2_1->setText("笑笑");
    toolBtn2_1->setIcon(QPixmap("21.png"));
    toolBtn2_1->setIconSize(QPixmap("21.png").size());
    toolBtn2_1->setAutoRaise(true);
    toolBtn2_1->setToolButtonStyle(Qt::ToolButtonTextBesideIcon);

    toolBtn2_2 = new QToolButton();
    toolBtn2_2->setText("西西");
    toolBtn2_2->setIcon(QPixmap("22.png"));
    toolBtn2_2->setIconSize(QPixmap("22.png").size());
    toolBtn2_2->setAutoRaise(true);
    toolBtn2_2->setToolButtonStyle(Qt::ToolButtonTextBesideIcon);

    QGroupBox *groupBox2 = new QGroupBox();
    QVBoxLayout *layout2 = new QVBoxLayout(groupBox2);
    layout2->setMargin(10);
    layout2->setAlignment(Qt::AlignHCenter);
    layout2->addWidget(toolBtn2_1);
    layout2->addWidget(toolBtn2_2);

    toolBtn3_1 = new QToolButton();
    toolBtn3_1->setText("小岑");
    toolBtn3_1->setIcon(QPixmap("31.png"));
    toolBtn3_1->setIconSize(QPixmap("31.png").size());
    toolBtn3_1->setAutoRaise(true);
    toolBtn3_1->setToolButtonStyle(Qt::ToolButtonTextBesideIcon);

    toolBtn3_2 = new QToolButton();
    toolBtn3_2->setText("小顾");
    toolBtn3_2->setIcon(QPixmap("32.png"));
    toolBtn3_2->setIconSize(QPixmap("32.png").size());
    toolBtn3_2->setAutoRaise(true);
    toolBtn3_2->setToolButtonStyle(Qt::ToolButtonTextBesideIcon);

    QGroupBox *groupBox3 = new QGroupBox();
    QVBoxLayout *layout3 = new QVBoxLayout(groupBox3);
    layout3->setMargin(10);
    layout3->setAlignment(Qt::AlignHCenter);
    layout3->addWidget(toolBtn3_1);
    layout3->addWidget(toolBtn3_2);

    this->addItem(groupBox1, "我的好友");
    this->addItem(groupBox2, "陌生人");
    this->addItem(groupBox3, "黑名单");


}

Drawer::~Drawer()
{
    
    

}

main.cpp

#include "drawer.h"

#include <QApplication>

int main(int argc, char *argv[])
{
    
    
    QApplication a(argc, argv);
    Drawer drawer;
    drawer.show();

    return a.exec();
}