NSMutableAttributedString的自动换行 [英] Word wrap for NSMutableAttributedString

问题描述

我有NSMutableAttributedString，字符串非常长。我想在UIlabel上显示它时进行自动换行。如果它是NSString，我会继续这样做，
动态UILabel截断文本
但我怎么能用NSAttributedString呢？
一旦完成，我需要根据标签大小调整视图大小。

I have NSMutableAttributedString and the string is pretty long. I would like to do word wrap while displaying it on the UIlabel. If it was NSString, i will go ahead and do something like this, Dynamic UILabel truncating the text But how can i do it with NSAttributedString ? And once it is done, i need to resize the view depending on the label size.

推荐答案

lineBreakMode属性在iOS 6中不推荐使用。它只是更改了常量的名称。旧常量已弃用，但仍可用。即使您要部署到较旧的iOS，也可以使用新常量，因为常量只是枚举值。旧名称和新名称具有相同的值。所以，只需设置yourlabelname.lineBreakMode = NSLineBreakByTruncatingTail。

The lineBreakMode property isn't deprecated in iOS 6. It has simply changed the names of the constants. The old constants are deprecated, but still available. You can use the new constants even if you are deploying to an older iOS, because the constants are just enum values. The old names and the new names have the same values. So, just set yourlabelname.lineBreakMode = NSLineBreakByTruncatingTail.

NSMutableParagraphStyle *paragraphStyle = [[NSMutableParagraphStyle alloc] init];
[paragraphStyle setLineBreakMode:NSLineBreakByTruncatingTail];
[attributedStr addAttribute:NSParagraphStyleAttributeName
                     value:paragraphStyle
                     range:NSMakeRange(0,[attributedStr length])];

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