闹钟

#ifndef WIDGET_H
#define WIDGET_H

#include <QWidget>
#include <QDebug>
#include <QIcon>
#include <QLabel>
#include <QTextEdit>
#include <QPushButton>
#include <QLineEdit>
#include <QPainter>
#include <QKeyEvent>
#include <QMessageBox>
#include <QFont>
#include <QFontDialog>
#include <QTimerEvent>
#include <QMediaPlayer>
#include <QAudioOutput>
#include <QVideoWidget>

namespace Ui {
class Widget;
}

class Widget : public QWidget
{
    Q_OBJECT

public:
    QVideoWidget *vw;
    QAudioOutput *audioOutput;
    QMediaPlayer *player;
    explicit Widget(QWidget *parent = nullptr);
    ~Widget();

    void timerEvent(QTimerEvent *e) override;

private:
    Ui::Widget *ui;
    bool flag=false;
};

#endif // WIDGET_H

#include "widget.h"
#include "ui_widget.h"
#include "QFile"
Widget::Widget(QWidget *parent) :
    QWidget(parent),
    ui(new Ui::Widget)
{
    ui->setupUi(this);

    audioOutput = new QAudioOutput(this);
    player = new QMediaPlayer(this);
    vw = new QVideoWidget(this);
    vw->resize(160,240);
    vw->move(180,40);
    player->setAudioOutput(audioOutput);
    player->setVideoOutput(vw);
    player->setSource(QUrl("https://v2rf4u4qumepw2enhu6m5ploy41qnho6k.free-lbv3.idouyinvod.com/v3-web.douyinvod.com/b834889b01459b5303a7d0871ca9cb73/64ac298a/video/tos/cn/tos-cn-ve-15c001-alinc2/aedc7f073a904b4abb89df52b4e2df85/?a=6383&ch=26&cr=0&dr=0&lr=all&cd=0%7C0%7C0%7C0&br=1127&bt=1127&cs=0&ds=3&ft=GN7rKGVVywf-RFm8Zmo~xj7ScoAp6c1-6vrKq3iZH2o0g3&mime_type=video_mp4&qs=0&rc=aTtnODw0ZmU0OzppPDVpM0BpajZmeDQ6ZnZqPDMzNGkzM0AuLjEuNjE0NjYxMy5gYDYwYSNmXjNycjRvcWxgLS1kLS9zcw%3D%3D&l=20230710225246BBB4D7031D20A71DF5F9&btag=e00028000&ali_redirect_ex_hot=66666800&ali_redirect_ex_beacon=1"));
    audioOutput->setVolume(50);

    startTimer(1000);

    this->setWindowTitle("闹钟");
    this->setWindowIcon(QIcon(":/icon/pineapple.png"));

    ui->timeEdit->setDisplayFormat("HH:mm:ss");
    ui->timeEdit->setTime(QTime::currentTime());

    ui->timeEdit->setAlignment(Qt::AlignCenter);
    ui->lineEdit->setAlignment(Qt::AlignCenter);
    ui->lineEdit->setFont(QFont("Arial", 18));
    ui->lineEdit->setStyleSheet("QLineEdit {"
                                "border: none;"
                                "background: transparent;"
                                "}");
    connect(ui->pushButton,&QPushButton::clicked,[=](){this->flag=true;});
    connect(ui->pushButton_2,&QPushButton::clicked,[=](){this->flag=false;});



}

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

void Widget::timerEvent(QTimerEvent *e)
{
    e->timerId();
        QDateTime sys_dt = QDateTime::currentDateTime();
        ui->lineEdit->setText(sys_dt.toString("hh:mm:ss"));
        QTime timeEditTime = ui->timeEdit->time();
        QTime lineEditTime = sys_dt.time();
        if(this->flag&&timeEditTime.second() == lineEditTime.second() &&timeEditTime.minute() == lineEditTime.minute() &&timeEditTime.hour() == lineEditTime.hour()){
            player->play();
            QMessageBox::information(this,"闹钟","快起来，你个懒猪!");
        }

}