<h2>问题</h2>    <p>之前的代码是：</p>    <pre>  <code class="language-swift">//2. file name label          self.nameLabel.text = resMsg.fileItem.name          self.nameLabel.font = UIFont.systemFontOfSize(13)          self.nameLabel.textColor = ColorConversationText          self.nameLabel.textAlignment = NSTextAlignment.Left          self.nameLabel.lineBreakMode = NSLineBreakMode.ByCharWrapping          self.nameLabel.numberOfLines = 0          //self.fileView.addSubview(self.nameLabel)          self.addSubview(self.nameLabel)          constrain(nameLabel, iconImageView) { nameLabel, iconImageView in              nameLabel.top == nameLabel.superview!.top + 6              nameLabel.left == iconImageView.right + 10              nameLabel.right <= nameLabel.superview!.right - 8              nameLabel.bottom <= nameLabel.superview!.bottom - 20          }</code></pre>    <p>效果是：</p>    <p><img src="https://simg.open-open.com/show/d1bfa6c30660a578ae0e5303febad400.png"></p>    <p>希望达到的效果是：</p>    <p>文件名太长时，保持文件名的开始后最后的后缀显示，中间部分可以变成…</p>    <p>无意间发现，直接修改参数即可：</p>    <p>现在改为：</p>    <pre>  <code class="language-swift">//self.nameLabel.lineBreakMode = NSLineBreakMode.ByCharWrapping          self.nameLabel.lineBreakMode = NSLineBreakMode.ByTruncatingMiddle</code></pre>    <p>效果是：</p>    <p><img src="https://simg.open-open.com/show/b062507b703aca9a5e018d6f7ef1368e.png"></p>    <h2>总结</h2>    <p>对于UILabel的的话，设置lineBreakMode为NSLineBreakMode.ByTruncatingMiddle，即可使得当文字太长，优先显示前面和最后面的内容，而让中间内容显示省略号三个点</p>    <p>-》对于文件名来说，就是保证文件名后缀显示了。</p>    <p> </p>    <p>来自： <a href="/misc/goto?guid=4959673502498300259" rel="nofollow">http://www.crifan.com/swift_uilabel_filename_too_long_show_suffix/</a></p>    <p> </p>