ios - 如何以编程方式在 iOS Objective C 中使文本标签的某些部分加粗？

Question

我试过这样

#define KPrivacyText @"Your privacy is very important to us. We are committed \nto earn  your trust by safeguarding your personal \ninformation. All the information you provide to us is \nsecurely maintained and is kept strictly confidential. We \ndo not, and will not provide any personal information to \nyour organisation without your consent.\n\nThe governing principles: \n\n\n\u2022\tInformation is kept strictly confidential and secure. \n\n\n\u2022\tInformation is only used for the purposes stated.\n\n\n\u2022\tInformation is only shared with your consent."

_privacyText.text = KPrivacyText;

我希望“管理原则:”以粗体显示。是否有类似 \n 但用于粗体的东西？

Answer 1

你必须使用 NSAttributedText 来实现它。

NSString *boldFontName = [[UIFont boldSystemFontOfSize:12] fontName];
NSString *yourString = ...;
NSRange boldedRange = NSMakeRange(22, 4);

NSMutableAttributedString *attrString = [[NSMutableAttributedString alloc] initWithString:yourString];

[attrString beginEditing];
[attrString addAttribute:kCTFontAttributeName 
                   value:boldFontName
                   range:boldedRange];

[attrString endEditing];
//draw attrString here...