Qt5 托盘模仿qq闪烁，弹消息框实现

在别人代码基础上做的，课设刚好用上了，贴出来分享Qt5.5.1实现。

图片自己找。

#ifndef DIALOG_H
#define DIALOG_H

#include <QDialog>
#include <QTimer>
#include <QMenu>
#include <QCloseEvent>
#include <QMessageBox>
#include <QSystemTrayIcon>

namespace Ui {
class Dialog;
}

class Dialog : public QDialog {
    Q_OBJECT
public:
    Dialog(QWidget *parent = 0);
    ~Dialog();
    void InitUi();
    void InitTray();                                //初始化托盘
    void InitLayout();
    void closeEvent(QCloseEvent *);    //在关闭窗口时候要重写该函数，为了最小化到托盘，而不是退出程序
    void ShowMessageBox();        //像是托盘图表的messagebox();
protected:
    void changeEvent(QEvent *e);

private:
    Ui::Dialog *ui;
    QSystemTrayIcon *tray;
    QTimer *timer;         //用于闪烁ICON的定时器
    int TimerCount;      //用于计算定时器超时次数，单数显示图标，双数不显示  并且为0时候表示没有消息

private slots:
    void MenuExit();       //右键菜单  退出
    void ShowNormal();  //正常显示
    void iconIsActived(QSystemTrayIcon::ActivationReason); //托盘图表活动，无论是鼠标悬浮，或者双击，或者单击
    void ShowClickMsg();  //点击了消息框后的响应函数
    void qq_msg_com();
    void updateIcon();       //定时器刚

};


#endif // DIALOG_H

#include "dialog.h"
#include "ui_dialog.h"

Dialog::Dialog(QWidget *parent) :
    QDialog(parent),
    ui(new Ui::Dialog)
{
    ui->setupUi(this);
    InitUi();
    InitTray();
    InitLayout();
}

Dialog::~Dialog()
{
    delete ui;
}

void Dialog::changeEvent(QEvent *e)
{
    QDialog::changeEvent(e);
    switch (e->type()) {
    case QEvent::LanguageChange:
        ui->retranslateUi(this);
        break;
    default:
        break;
    }
}
//初始化部件
void Dialog::InitUi()
{
       timer=new QTimer(this);
       TimerCount=0;  //初始化为零

}
//初始化托盘
void Dialog::InitTray()
{
    QMenu *contexmenu=new QMenu(this);           //注意右键菜单的父对象，在窗口销毁后要把菜单也销毁掉
    QAction *shut=new QAction("quit",this);                  //菜单中两个动作
    QAction *openNomal=new QAction("show normal",this);
    QAction *qqmsg=new QAction("QQ Msg",this);
    contexmenu->addAction(shut);
    contexmenu->addSeparator();
    contexmenu->addAction(openNomal);
    contexmenu->addSeparator();
    contexmenu->addAction(qqmsg);
    connect(shut,SIGNAL(triggered()),this,SLOT(MenuExit()));          //点击了这两个菜单
    connect(openNomal,SIGNAL(triggered()),this,SLOT(ShowNormal()));
    connect(qqmsg,SIGNAL(triggered()),this,SLOT(qq_msg_com()));
    tray=new QSystemTrayIcon(this);
    tray->setToolTip("try to click");   //放在图表上时候显示
    tray->setContextMenu(contexmenu);
    tray->setIcon(QIcon("image/icon.png"));
    tray->show();
    connect(tray,SIGNAL(activated(QSystemTrayIcon::ActivationReason)),this,SLOT(iconIsActived(QSystemTrayIcon::ActivationReason)));
    connect(tray,SIGNAL(messageClicked()),this,SLOT(ShowClickMsg()));  //模拟QQ消息到来时候的闪烁图表
}
//初始化布局
void Dialog::InitLayout()
{}
//相应关闭窗口消息函数
void Dialog::closeEvent(QCloseEvent *event)
{
    if(tray->isVisible())
    {
        QMessageBox::about(this,tr("最小化"),tr("最小化到托盘"));
        this->hide();
        event->ignore();
    }

}
//响应右键菜单正常显示
void Dialog::ShowNormal()
{
    timer->stop();
    tray->setIcon(QIcon(":/new/prefix1/2"));   //正常显示时候恢复原有图标，防止定时器在无显示图表时候被终止
    this->show();
}
//响应右键菜单 关闭程序
void Dialog::MenuExit()
{
    exit(0);
}
//托盘图标活动l
void Dialog::iconIsActived(QSystemTrayIcon::ActivationReason reason)
{
    switch(reason)
    {
        case QSystemTrayIcon::DoubleClick:
            ShowNormal();
            break;
        case QSystemTrayIcon::Trigger:
           ShowMessageBox();
            break;
        case QSystemTrayIcon::Unknown:
                QMessageBox::about(this,"unkown","unkown activation");
                break;
    default:
                break;
    }
}
void Dialog::ShowMessageBox()
{
    QSystemTrayIcon::MessageIcon icon=QSystemTrayIcon::MessageIcon(1);  //设置图表是标准的系统托盘  信息
     tray->showMessage("you click","hello,tray",icon,10000);
}
//点击了消息框后的要响应的函数
void Dialog::ShowClickMsg()
{
    QMessageBox::about(0,"click","you click the messagebox");
    ShowNormal();
}
//模拟QQ消息到来时候，托盘图表闪动
void Dialog::qq_msg_com()
{
    timer->start(500);  //每500ms都刷新一次
    timer->setSingleShot(false);  //如果为真，表示只重复一次,为假表示无限次循环
    connect(timer,SIGNAL(timeout()),this,SLOT(updateIcon()));
}
//刷新托盘图标
void Dialog::updateIcon()
{
    TimerCount++;
    if(TimerCount%2)
    {
        tray->setIcon(QIcon(":/new/prefix1/0"));   //实际上没有这个图标，然后会显示没有图表
    }
    else
    {
        tray->setIcon(QIcon(":/new/prefix1/2"));
    }
}

#include "dialog.h"
#include <QApplication>

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

    return a.exec();
}