Qt：QThread中直接使用QTimer，不封装QThread

//工作类test moveToThread
class Worker : public QObject
{
    Q_OBJECT
public:
    explicit Worker(QObject *parent = 0) : QObject(parent) {}

signals:
    void doSomething();

public slots:
    void trigger()
    {
        qDebug() << "moveToThread Worker::trigger()";
        emit doSomething();
    }
};

//主线程
void MainWindow::test_moveToThread()
{//需要使用指针变量，否则退出该函数就析构了
    QThread *thread = new QThread;
    Worker *work = new Worker;
    QTimer *timer = new QTimer;
    timer->setInterval(2000);
    timer->moveToThread(thread);
    work->moveToThread(thread);
    QObject::connect(thread, SIGNAL(started()), timer, SLOT(start()));
    QObject::connect(work, SIGNAL(doSomething()), this, SLOT(slot_timer_movetothread()));
    QObject::connect(timer, SIGNAL(timeout()), work, SLOT(trigger()));
    thread->start();
    //QMetaObject::invokeMethod(&timer, "start", Qt::QueuedConnection); //timer->start()
    //QMetaObject::invokeMethod(&timer, "start", Qt::QueuedConnection , Q_ARG(int, 1000 )); //timer->start(200)
}
//Try
//QMetaObject::invokeMethod(&timer, "start", Qt::QueuedConnection); //timer->start()
//if you want to start timer immediately
//Or
//QMetaObject::invokeMethod(&timer, "start", Qt::QueuedConnection , Q_ARG(int, 1000 )); //timer->start(200)
//if you want to start timer after 1000s
//In the Non-GUI thread (QThread or Pthread Callback)

void MainWindow::slot_timer_movetothread()
{
    qDebug() << "moveToThread MainWindow::slot_timer_movetothread()";
}

//来源：https://stackoverflow.com/questions/15835267/qthread-and-qtimer
//参考：https://blog.csdn.net/weixin_30415113/article/details/99479435