ios - 增加 UILabel.text 中第一个字母的字体大小

Question

我希望 UILabel 的第一个字母与其他字母的字体大小不同，字体大小大一些。需要一些关于如何做的指导。标签有很多字。

这是我试过的:

NSArray * words = [Label.text componentsSeparatedByCharactersInSet:[NSCharacterSet whitespaceCharacterSet]];
NSString *firstLetter = [[words objectAtIndex:0] substringToIndex:1];

但是在增加 NSString 的大小时遇到​​了困难。有没有更好的办法？欢迎给我建议和指导..谢谢..

编辑:

[Label setFont:[UIFont fontWithName:@"Arial" size:12.f]];
NSArray * words = [Label.text componentsSeparatedByCharactersInSet:[NSCharacterSet whitespaceCharacterSet]];
UIFont *fontFirst=[UIFont fontWithName:@"Arial" size:15.f];
NSDictionary *attrsDictFirst=[NSDictionary dictionaryWithObject:font forKey:NSFontAttributeName];
NSAttributedString *finalString=[[NSAttributedString alloc] initWithString:[[words objectAtIndex:0] substringToIndex:1]  attributes:attrsDictFirst];

Answer 1

例如，要得到这个:

这样说:

NSString* s2 = @"Fourscore and seven years ago, our fathers brought forth "
    @"upon this continent a new nation, conceived in liberty and dedicated "
    @"to the proposition that all men are created equal.";
NSMutableAttributedString* content2 =
    [[NSMutableAttributedString alloc]
     initWithString:s2
     attributes:
         @{
           NSFontAttributeName:
               [UIFont fontWithName:@"HoeflerText-Black" size:16]
         }];
[content2 setAttributes:
    @{
      NSFontAttributeName:[UIFont fontWithName:@"HoeflerText-Black" size:24]
     } range:NSMakeRange(0,1)];
[content2 addAttributes:
    @{
      NSKernAttributeName:@-4
     } range:NSMakeRange(0,1)];

NSMutableParagraphStyle* para2 = [NSMutableParagraphStyle new];
para2.headIndent = 10;
para2.firstLineHeadIndent = 10;
para2.tailIndent = -10;
para2.lineBreakMode = NSLineBreakByWordWrapping;
para2.alignment = NSTextAlignmentJustified;
para2.lineHeightMultiple = 1.2;
para2.hyphenationFactor = 1.0;
[content2 addAttribute:NSParagraphStyleAttributeName
                 value:para2 range:NSMakeRange(0,1)];

然后将 content2 分配给标签的 attributedText。