swift UILabel的高度自适应

最新推荐文章于 2023-03-01 16:40:52 发布

转载最新推荐文章于 2023-03-01 16:40:52 发布 · 176 阅读

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原文链接：http://www.cnblogs.com/yaoyao0110/p/5525838.html

文章标签：

#swift

本文介绍如何使用Swift实现UILabel中的长字符串自动换行，并调整UILabel的高度以适应内容。通过设置字体大小、颜色及行间距等属性，确保UILabel能够正确显示长文本。

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        let label = UILabel.init()
        label.backgroundColor = UIColor.grayColor()
        label.text = "1234567890-edfdgddffgfgfggfggddfbyfru6y6r7iuymgnjnrtfugyu57t6injyunjokn89uilmghbjl,hknjlllllllllllllllllllllllllllllllllllllmimomomkjnijunbuygbtyfrtdrxcresxweaswa"

        label.font = UIFont.systemFontOfSize(14
        )
        label.textColor = UIColor.redColor()
        let string:NSString = label.text!
        let options:NSStringDrawingOptions = .UsesLineFragmentOrigin
        let boundingRect = string.boundingRectWithSize(CGSizeMake(200, 0), options: options, attributes:[NSFontAttributeName:label.font], context: nil)
        label.frame = CGRectMake(0, 20, 200, boundingRect.height)
        label.numberOfLines = 0;
        label.lineBreakMode = NSLineBreakMode.ByWordWrapping

        self.view.addSubview(label)

转载于:https://www.cnblogs.com/yaoyao0110/p/5525838.html