代码 qtimer_thread.cpp

    1. #include "qtimer_thread.h"
    2. #include "ui_qtimer_thread.h"
    4. Qtimer_thread::Qtimer_thread(QWidget *parent)
    5.     : QWidget(parent)
    6.     , ui(new Ui::Qtimer_thread)
    7. {
    8.     ui->setupUi(this);
    9.     btn = new QPushButton(this);
    10.     connect(btn, SIGNAL(clicked()),
    11.                       this,  SLOT(creat_thread()));
    13. }
    15. void Qtimer_thread::thread()
    16. {
    17.     std::cout << "sleep" << std::endl;
    18. }
    20. void Qtimer_thread::creat_thread()
    21. {
    22.     tim = new QTimer(this);
    23.     connect(tim, SIGNAL(timeout()), this, SLOT(thread()));
    24.     tim->start(1000);
    25. }
    27. Qtimer_thread::~Qtimer_thread()
    28. {
    29.     std::cout << "Qtimer_thread::~Qtimer_thread()" << std::endl;
    30.     thread_exit = 0;
    31.     delete btn;
    32.     delete tim;
    33.     delete ui;
    34. }
    36. void Qtimer_thread::closeEvent(QCloseEvent *event)
    37. {
    38.     std::cout << "closeEvent execed" << std::endl;
    39.     thread_exit = 0;
    40. }

    代码 qtimer_thread.h

    1. #ifndef QTIMER_THREAD_H
    2. #define QTIMER_THREAD_H
    4. #include <QWidget>
    5. #include <QPushButton>
    6. #include <iostream>
    7. #include <QTimer>
    8. #include <QCloseEvent>
    10. extern "C"
    11. {
    12. #include <unistd.h>
    13. }
    15. QT_BEGIN_NAMESPACE
    16. namespace Ui { class Qtimer_thread; }
    17. QT_END_NAMESPACE
    19. class Qtimer_thread : public QWidget
    20. {
    21.     Q_OBJECT
    23. public:
    24.     Qtimer_thread(QWidget *parent = nullptr);
    25.     ~Qtimer_thread();
    27. protected slots:
    28.     void thread();
    29.     void creat_thread();
    31. protected:
    32.     void closeEvent(QCloseEvent *event);
    34. private:
    35.     QPushButton *btn = nullptr;
    36.     QTimer *tim = nullptr;
    37.     Ui::Qtimer_thread *ui;
    38.     int thread_exit;
    39. };
    40. #endif // QTIMER_THREAD_H