的UILabel使用不同的字体

Question

我有这个字符串，我想在标签中显示：

NSString *criticsScore=[NSString stringWithFormat:@"%@\%%",[dict objectForKey:@"critics_score"]]; 

_criticRating.text=criticsScore; 

我要为\%%小字体和[dict objectForKey:@"critics_score"]];
大字体这可能吗？

Answer 1

阅读本文post。它大约是NSAttributedString s。我认为那是你需要的。

Answer 2

你将不得不做两个UILabels。您可以将第一个标签设置为全部文本，并使用sizeWithFont：标签中的文本获取该标签的大小。然后将第二个标签设置为在该标签框架的末尾处开始。

所以，它会是这个样子，改变根据您想要的标签坐标：

NSString *criticsScore = [NSString stringWithFormat:@"%@",[dict objectForKey:@"critics_score"]]; 
NSString *str2 = @"\%%"; 

UIFont *criticsFont = [UIFont systemFontOfSize:[UIFont systemFontSize]]; 
UIFont *font2 = [UIFont systemFontOfSize:12.0]; 

//Get the sizes of each text string based on their font sizes. 
CGSize criticsSize = [criticsScore sizeWithFont:criticsFont]; 
CGSize size2 = [str2 sizeWithFont:font2]; 


int x = 0; 
int y = 0; 
//The first label will start at whatever x and y are. 
UILabel *label1 = [[UILabel alloc] initWithFrame:CGRectMake(x,y,criticsSize.width,criticsSize.height)]; 
[label1 setFont:criticsFont]; 
//Create a second label with the x starting at x+criticsSize.width; 
//The y will start at y+criticsSize.height-size2.height, so that it will be aligned with the bottom. 
//Change these to align it differently. 
UILabel *label2 = [[UILabel alloc] initWithFrame:CGRectMake(x+criticsSize.width,y+criticsSize.height-size2.height,size2.width,size2.height)]; 
[label2 setFont:font2]; 
[self.view addSubview:label1]; 
[self.view addSubview:label2]; 

Answer 3

你需要使用自己的控制绘制NSAttributedString，像TTTAttributedLabel。

NSMutableAttributedString *str = [[NSMutableAttributedString alloc] initWithString:[NSString stringWithFormat:@"Blah1:blah-blah%d. Blah2:-%d%%", [currentCoupon.couponPrice intValue],[currentCoupon.couponDiscountPercent intValue]]; 
[str addAttribute:NSBackgroundColorAttributeName value:[UIColor clearColor] range:NSMakeRange(0,30)];/// Define Range here and also BackGround color which you want 
[str addAttribute:NSForegroundColorAttributeName value:[UIColor blackColor] range:NSMakeRange(0,30)];/// Define Range here and also TextColor color which you want 
[str addAttribute:NSFontAttributeName value:[UIFont fontWithName:@"HelveticaNeue-Bold" size:20.0] range:NSMakeRange(20, 10)]; 
lblWithText.attributedText = str; 

上面的代码中，我从How to use multiple font stylings on a single string inside a label?