延迟动作/功能

Question

我打算做的是，我有一个触发两个标签的按钮。最初隐藏了两个标签。我想让一个人立刻出现，而另一个秒后再点击按钮。

我可以添加什么来实现这一目标？

@IBOutlet var noDelayLabel: UILabel!
@IBOutlet var delayLabel: UILabel!
@IBAction func delayButton(_ sender: Any) {
    noDelayLabel.isHidden = false
    delayLabel.isHidden = false
}

Answer 1

BOOST_LOG_GLOBAL_LOGGER_INIT(logger, src::severity_logger_mt) {
    src::severity_logger_mt<boost::log::trivial::severity_level> logger;

    // add attributes
    logger.add_attribute("LineID", attrs::counter<unsigned int>(1));    // lines are sequentially numbered
    logger.add_attribute("TimeStamp", attrs::local_clock());             // each log line gets a timestamp

    return logger;
}