1.自定義開關控件；

2.點擊有動畫效果；

3.在動畫效果中，不再響應信號；

運行截圖如下：

輸出響應信號：

源碼如下：

myonoff.h

#ifndef MYONOFF_H #define MYONOFF_H#include <QLabel>QT_BEGIN_NAMESPACE class QPropertyAnimation; QT_END_NAMESPACEclass MyOnOff : public QLabel {Q_OBJECTQ_PROPERTY(int onoffStatus READ onoffStatus WRITE setOnoffStatus NOTIFY onoffStatusChanged)public:enum status{ON,OFF};MyOnOff(QWidget *parent = 0);int onoffStatus()const;void setOnoffStatus(const int status);signals:void onoffStatusChanged(int status);protected:void paintEvent(QPaintEvent *event)Q_DECL_OVERRIDE;void mouseReleaseEvent(QMouseEvent *event)Q_DECL_OVERRIDE;void controlWidgetChanged();private:int m_onoffStatus;bool m_animationIsRun;QPropertyAnimation *m_propertyAnimation; };#endif // MYONOFF_H

widget.h

#ifndef WIDGET_H #define WIDGET_H#include <QWidget>namespace Ui { class Widget; }class Widget : public QWidget {Q_OBJECTpublic:explicit Widget(QWidget *parent = 0);~Widget();public slots:void onOffStatus(int status);private:Ui::Widget *ui; };#endif // WIDGET_H

main.cpp

#include "widget.h" #include <QApplication>int main(int argc, char *argv[]) {QApplication a(argc, argv);Widget w;w.show();return a.exec(); }

myonoff.cpp

#include "myonoff.h" #include <QPropertyAnimation> #include <QPainter> #include <QMouseEvent> #include <QDebug> #include <QTimer> #include <QEventLoop>MyOnOff::MyOnOff(QWidget *parent): QLabel(parent), m_onoffStatus(ON), m_animationIsRun(false) {m_propertyAnimation=new QPropertyAnimation(this,"minimumSize"); }int MyOnOff::onoffStatus() const {return m_onoffStatus; }void MyOnOff::setOnoffStatus(const int status) {m_onoffStatus=status;emit onoffStatusChanged(m_onoffStatus); }void MyOnOff::paintEvent(QPaintEvent *event) {Q_UNUSED(event)QPainter painter(this);painter.save();if(m_onoffStatus){painter.drawPixmap(0,0,QPixmap(":/img/off.png").scaled(minimumSize()));}else{painter.drawPixmap(0,0,QPixmap(":/img/on.png").scaled(minimumSize()));}painter.restore(); }void MyOnOff::mouseReleaseEvent(QMouseEvent *event) {if(event->button()==Qt::LeftButton&&!m_animationIsRun){m_animationIsRun=true;bool onoffStatus=m_onoffStatus;setOnoffStatus(!onoffStatus);update();//Began to changecontrolWidgetChanged();m_animationIsRun=false;}event->accept(); }void MyOnOff::controlWidgetChanged() {m_propertyAnimation->setDuration(500);m_propertyAnimation->setStartValue(QSize(64,64));m_propertyAnimation->setEndValue(QSize(74,74));m_propertyAnimation->start();QEventLoop loop;QTimer::singleShot(1*600,&loop,&QEventLoop::quit);loop.exec();m_propertyAnimation->setDuration(500);m_propertyAnimation->setStartValue(QSize(74,74));m_propertyAnimation->setEndValue(QSize(64,64));m_propertyAnimation->start();QTimer::singleShot(1*500,&loop,&QEventLoop::quit);loop.exec(); }

widget.cpp

#include "widget.h" #include "ui_widget.h" #include "myonoff.h"#include <QDebug>#ifndef OFF #define OFF 1 #define ON 0 #endifWidget::Widget(QWidget *parent) :QWidget(parent),ui(new Ui::Widget) {ui->setupUi(this);connect(ui->label,static_cast<void(MyOnOff::*)(int)>(&MyOnOff::onoffStatusChanged),this,&Widget::onOffStatus);setWindowTitle("CSDN IT1995"); }Widget::~Widget() {delete ui; }void Widget::onOffStatus(int status) {if(status==OFF){qDebug()<<"The switch is off";}else{qDebug()<<"The switch is on";} }

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