定时器以及定时器事件

来源：互联网发布：软件前端开发是什么编辑：程序博客网时间：2024/05/23 07:24

widget.h

#include <QWidget>#include<QTimer>class Widget : public QWidget{    Q_OBJECTpublic:    Widget(QWidget *parent = 0);    ~Widget();protected:    void timerEvent(QTimerEvent *);private:    QTimer *timer;    int timeId_1000;    int timeId_3000;};

widget.cpp

#include "widget.h"#include<QTimerEvent>#include<QDebug>Widget::Widget(QWidget *parent)    : QWidget(parent){    timer=new QTimer(this);    timer->setInterval(1000);    timer->start();    //    connect(timer, SIGNAL(timeout()), this, SLOT(close()));    timeId_1000 = startTimer(1000);    timeId_3000 = startTimer(3000);}Widget::~Widget(){}void Widget::timerEvent(QTimerEvent *event){    static int counter = 0;    if( event->timerId() ==  timeId_1000 )    {        qDebug()<<"1000 timeout";        counter++;        if(counter == 5)        {            killTimer(timeId_1000);        }    }//    if(event->timerId() ==  timeId_3000)//    {//        qDebug()<<"3000 timeout";//        counter++;//        if(counter == 5)//        {//            killTimer(timeId_3000);//        }//    }}

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