swift - 在特定持续时间后删除 subview

Question

我显示了一个 subview ，其中包含 subview 、图像和消息。我需要在特定的持续时间/时间(5秒)后快速删除此 subview 。 subview 的代码如下:

     var HideView = UIView (frame: CGRectMake(0 , 0, 320, 480));
    HideView.backgroundColor = UIColor(red:0.0, green:0.0, blue:0.0, alpha:0.6);
    var ErrorView = UIView (frame: CGRectMake(0, 40, 320, 70));
    ErrorView.backgroundColor = UIColor(red:0.8, green:0.376, blue:0.094, alpha:1.0);
    ErrorView.clipsToBounds = true;
    ErrorView.layer.shouldRasterize = true
    HideView.addSubview(ErrorView)

    var ErrorImageView = UIImageView(frame: CGRectMake(5, 5, 30, 30));
    var ErrorImage = UIImage(named: "error_icon_white.pdf");
    ErrorImageView.image = ErrorImage;
    ErrorView.addSubview(ErrorImageView)

    var ErrorLabel = UILabel (frame: CGRectMake(50, 0, 270, 70));
    ErrorLabel.backgroundColor = UIColor.clearColor();
    ErrorLabel.textColor = UIColor.whiteColor()
    ErrorLabel.font =  UIFont(name: "Gotham", size: 1)
    ErrorLabel.numberOfLines = 3
    var errmsg = "Hello world"
    ErrorLabel.text = errmsg;
    ErrorView.addSubview(ErrorLabel)
    self.view.addSubview(HideView);

我能达到这个要求吗？如果是的话怎么办？提前致谢。

Answer 1

添加 subview 后，添加一个计时器，以便在所需的时间段(5 秒)后触发

var timer = NSTimer.scheduledTimerWithTimeInterval(NSTimeInterval(5.0), target: self, selector: "timeExpired", userInfo: nil, repeats: false)

然后，您可以在“timeExpired”函数中执行您喜欢的任何操作:

func timeExpired() {
        println("time expired")
        // yoursubview.removeFromSuperview()
    }