我正在使用NSMutableAttributedString
和NSAttributedString
来显示两种不同字体大小的标签文字。我的方法是:
NSMutableAttributedString *muAtrStr = [[NSMutableAttributedString alloc]initWithString:@"2"];
NSAttributedString *atrStr = [[NSAttributedString alloc]initWithString:@"days" attributes:@{NSFontAttributeName : [UIFont fontWithName:@"HelveticaNeue-Bold" size:8]}];
[muAtrStr appendAttributedString:atrStr];
它返回一个归因字符串,字体大小为12,字符大小为“2”,字体大小为8,为“days”。
但是,另一种情况是在2之后添加换行符。我使用以下代码:
NSMutableAttributedString *muAtrStr = [[NSMutableAttributedString alloc]initWithString:@"2"];
NSAttributedString *atrStr = [[NSAttributedString alloc]initWithString:@"\ndays" attributes:@{NSFontAttributeName : [UIFont fontWithName:@"HelveticaNeue-Bold" size:8]}];
[muAtrStr appendAttributedString:atrStr];
此时属性字符串在全文中应用属性。我得到一个字体大小为8的“2 \ ndays”的属性字符串。
答案 0 :(得分:39)
尝试以下代码,它可以正常工作: -
NSMutableAttributedString *muAtrStr = [[NSMutableAttributedString alloc]initWithString:@"2"];
NSAttributedString *atrStr = [[NSAttributedString alloc]initWithString:@"\ndays" attributes:@{NSFontAttributeName : [UIFont fontWithName:@"HelveticaNeue-Bold" size:8]}];
[muAtrStr appendAttributedString:atrStr];
self.lbl.numberOfLines = 0;
[self.lbl setAttributedText:muAtrStr];
注意: - 也允许numberOfLines为0以允许任意数量的行
答案 1 :(得分:8)
这适用于Swift:
let attributedText = NSAttributedString(string: "Happy \nDays")
label.numberOfLines = 0
label.lineBreakMode = .byWordWrapping
label.attributedText = attributedText