使用 QTimer 的 Qt 登录超时

Question

当用户名/密码输入错误太多次时，我正在尝试实现登录超时。但我做不到。我的代码如下

ui->label->setText("Password entered wrong too many times, entered 10 minute cooldown period");
    QTimer *timer = new QTimer(this);
    connect(timer, SIGNAL(timeout()), this, SLOT(update())); 
    timer->start(6000);
    ui->pushButton->setVisible(false);
    if(!timer->isActive())
        ui->pushButton->setVisible(true);

Answer 1

试试这个

ui->pushButton->hide();
QTimer::singleShot(5000, ui->pushButton, SLOT(show()));