objective-c - 如何将 sizeWithFont 转换为 sizeWithAttributes(iOS 7)

Question

如何在 iOS 7 SDK 中获取CGSize价值NSString，只需将以下代码行转换为sizeWithAttributes.

CGSize size = [text sizeWithFont:[UIFont systemFontOfSize:FONT_SIZE] constrainedToSize:constraint lineBreakMode:NSLineBreakByWordWrapping];

Answer 1

你可以试试这个...

 NSDictionary *attributes = @{NSFontAttributeName: [UIFont fontWithName:@"HelveticaNeue" size:14]};

[text sizeWithAttributes:attributes]

或者

CGRect rect = [text boundingRectWithSize:CGSizeMake(width, MAXFLOAT) options:NSStringDrawingUsesLineFragmentOrigin attributes:attributes context:nil];