与 NSAttributedString 真的很接近吗?

问题描述

我想让按钮的两行文本非常靠近(小行间距).我有以下代码:

I want to have two lines of text appear really close together (small line spacing) for a button. I have the following code:

NSMutableAttributedString *string = [[NSMutableAttributedString alloc] initWithString:@"50 WPM"];

NSMutableParagraphStyle *paragrapStyle = [[NSMutableParagraphStyle alloc] init];
paragrapStyle.alignment = NSTextAlignmentCenter;
paragrapStyle.lineSpacing = -10;

[string addAttribute:NSParagraphStyleAttributeName value:paragrapStyle range:NSMakeRange(0, string.length)];

UIFont *font1 = [UIFont systemFontOfSize:22.0];
[string addAttribute:NSFontAttributeName value:font1 range:NSMakeRange(0, string.length - 4)];

UIFont *font = [UIFont systemFontOfSize:15.0];
[string addAttribute:NSFontAttributeName value:font range:NSMakeRange(string.length - 3, 3)];

[string addAttribute:NSForegroundColorAttributeName value:[UIColor greenColor] range:NSMakeRange(0, string.length)];

[self.button setAttributedTitle:string forState:UIControlStateNormal];

但由于行间距不能为负数，因此它不会像我希望的那样接近.它看起来像这样:

But as linespacing can't be negative, it doesn't get nearly as close as I'd like it to be. It looks like this:

有什么办法可以拉近他们的距离?

Is there any way to get them closer?

推荐答案

好吧，如果你有一个属性字符串，那么一切都应该是可能的.:) 你只需要看更多.

Well if you have an attribute string then everything should be possible. :) You just have to look more.

- (void)setMinimumLineHeight:(CGFloat)aFloat
- (void)setMaximumLineHeight:(CGFloat)aFloat

试试

[paragraphStyle setLineSpacing:0.0f];
[paragraphStyle setMaximumLineHeight:7.0f];

你会意识到maximumLineHeight 不是maximumLineSpacing.^^

You will realise that maximumLineHeight is not maximumLineSpacing. ^^

例如 setMaximumLineHeight:12];

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