头文件:
#ifndef ALARMCLOCK_H
#define ALARMCLOCK_H
#include <QWidget>
#include <QTimerEvent>
#include <QTimer>
#include <QTime>
#include <QTextToSpeech>
QT_BEGIN_NAMESPACE
namespace Ui { class AlarmClock; }
QT_END_NAMESPACE
class AlarmClock : public QWidget
{
Q_OBJECT
public:
AlarmClock(QWidget *parent = nullptr);
~AlarmClock();
void timerEvent(QTimerEvent *e);
private slots:
void on_sbtn_clicked();
void on_cbtn_clicked();
private:
Ui::AlarmClock *ui;
int id;
QTextToSpeech *speech;
};
#endif // ALARMCLOCK_H
源文件:
#include "alarmclock.h"
#include "ui_alarmclock.h"
AlarmClock::AlarmClock(QWidget *parent)
: QWidget(parent)
, ui(new Ui::AlarmClock)
{
ui->setupUi(this);
speech = new QTextToSpeech(this);
}
AlarmClock::~AlarmClock()
{
delete ui;
}
void AlarmClock::timerEvent(QTimerEvent *e)
{
//获取系统时间
QTime systime = QTime::currentTime();
//将系统时间转换
QString s = systime.toString("hh:mm:ss");
//将转换后的系统时间放入Label中
ui->timelab->setText(s);
//居中显示
ui->timelab->setAlignment(Qt::AlignCenter);
//比对闹钟时间和系统时间,如果相等,则播报闹钟
if(ui->tedit->text() == s)
{
for(int i=0;i<3;i++)
{
speech->say(ui->speechlab->text());
}
}
}
//启动按钮点击信号对应的槽函数
void AlarmClock::on_sbtn_clicked()
{
//打开一个定时器
id = startTimer(1000);
}
//关闭按钮点击信号对应的槽函数
void AlarmClock::on_cbtn_clicked()
{
killTimer(id);
}
主函数:
#include "alarmclock.h"
#include <QApplication>
int main(int argc, char *argv[])
{
QApplication a(argc, argv);
AlarmClock w;
w.show();
return a.exec();
}