从 ScrollView Swift 中删除子视图

Remove subviews from ScrollView Swift(从 ScrollView Swift 中删除子视图)

本文介绍了从 ScrollView Swift 中删除子视图的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!

问题描述

我使用 for 循环在我的滚动视图中创建标签和按钮.是否可以删除我的滚动视图内的所有对象?(我想用新内容更新它)

I use a for-loop to create labels and buttons inside my scrollView. Is it possible to remove all objects indside my scrollView? (I would like to update it with new content)

for peop in personArray{

        scrollView.clearContent ??????


        // Name label
        var label: UILabel = UILabel()
        label.frame = CGRectMake(8, CGFloat(nameHeight), 183, 21)
        label.backgroundColor = UIColor.whiteColor()
        label.textColor =  UIColor(red: 90/255.0, green: 187/255.0, blue: 206/255.0, alpha: 1.0)
        label.textAlignment = NSTextAlignment.Left
        label.font = UIFont (name: "HelveticaNeue-Light", size: 14)
        label.text = " (peop.getName()) - (sex)"
        self.scrollView.addSubview(label)


        //Delete button
        var button = UIButton.buttonWithType(UIButtonType.System) as UIButton
        button.tag = playerId
        button.frame = CGRectMake(199, CGFloat(nameHeight), 37, 21)
        button.backgroundColor = colorWheel.colorsArray[7]
        button.setTitle("Slet", forState: UIControlState.Normal)
        button.addTarget(self, action: "delAction:", forControlEvents: UIControlEvents.TouchUpInside)
        button.setTitleColor(UIColor.whiteColor(), forState: UIControlState.Normal)
        self.scrollView.addSubview(button)
        button.titleLabel!.font = UIFont(name: "HelveticaNeue-Light", size: 14)


        scrollHeight = scrollHeight + 29
        nameHeight = nameHeight + 29
        playerId++
    }
    scrollView.contentSize = CGSize(width: 20.0, height: CGFloat(nameHeight))
}

func delAction(sender: UIButton!){
    personArray.removeAtIndex(sender.tag)
    updatePeople()
}

推荐答案

你试过了吗?

let subViews = self.scrollView.subviews
for subview in subViews{
    subview.removeFromSuperview()
}

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本文标题为:从 ScrollView Swift 中删除子视图

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