我正在尝试设置对齐方式WKInterfaceLabel using setAttributedText功能。这是我的代码：
var paragraphStyle = NSParagraphStyle.defaultParagraphStyle()
paragraphStyle.alignment = NSTextAlignment.Center
var attributedDictonary = [NSForegroundColorAttributeName:UIColor.greenColor(), NSParagraphStyleAttributeName:paragraphStyle]
var attributeString = NSAttributedString(string: "TextAttributed", attributes: attributedDictonary)
self.titleLabel.setAttributedText(attributeString)
但我在这条线上遇到了问题：
paragraphStyle.alignment = NSTextAlignment.Center
我收到错误：Cannot assign to 'alignment' in 'paragraphStyle'
如何设置对齐方式WKInterfaceLabel using setAttributedText?
你需要使用NSMutableParagraphStyle:
var paragraphStyle = NSMutableParagraphStyle()
paragraphStyle.alignment = NSTextAlignment.CenterTextAlignment
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