Question

QT怎么实现左右滑动的按钮

Answer 1

其实就是2张图片，加2个字符串。

你也可以从QWidget派生自己处理，那样比上面的简单多了。
我帖段代码：

　　#ifndef SWITCHMENU_H
#define SWITCHMENU_H

#include <QWidget>

class SwitchMenu : public QWidget
{
Q_OBJECT
public:
explicit SwitchMenu(QWidget *parent = 0);

protected:
virtual void paintEvent(QPaintEvent *);
virtual void mousePressEvent(QMouseEvent *);
virtual void mouseReleaseEvent(QMouseEvent *);

signals:

public slots:

public:
void initialize(const QString&, const QString&);

private:
QPixmap m_pixmapBk;
QPixmap m_pixmapFore;
bool m_bOn;

bool m_bLBtnDown;
};

#endif // SWITCHMENU_H

　　#include "switchmenu.h"

#include <QPainter>
#include <QMouseEvent>

SwitchMenu::SwitchMenu(QWidget *parent) :
QWidget(parent)
{
setWindowFlags(Qt::FramelessWindowHint);

m_bOn = false;

m_bLBtnDown = false;
}

void SwitchMenu::paintEvent(QPaintEvent *)
{
QPainter painter(this);

painter.drawPixmap(QPoint(0,0), m_pixmapBk);

QPoint ptFore;
if (m_bOn) {
ptFore = rect().topLeft();
} else {
ptFore = QPoint(this->width() - m_pixmapFore.width(),
this->rect().top());
}
painter.drawPixmap(ptFore, m_pixmapFore);

QRect rcOn;
rcOn.setTopLeft(rect().topLeft());
rcOn.setBottomRight(QPoint(m_pixmapFore.width(), m_pixmapFore.height()));

Answer 2

好像没有这种功能吧 你要发现了 请转告我 谢谢