Question

我有一个像“这是一个好苹果”的字符串。在我的UIlabel上显示。我想用不同的字体设置“好”这个词。看起来像“这是好苹果。”

Answer 1

看看NSAttributedString ...使用OHAttributedLabel绘制NSAttributedString，因为UILabel，UITextView不支持NSAttributedString ......

PS：如果您计划分发iOS6或更新的应用程序，因为UILabel现在支持NSAttributedString，您应该直接使用UILabel而不是OHAttributedLabel，因为它现在可以由OS本机支持。

Answer 2

有一种方法可以设置不同/多种字体＆amp; Label上的其他属性使用NSMutableAttributedString。 Foll是我的代码：

 UIFont *ArialFont = [UIFont fontWithName:@"arial" size:18.0];
 NSDictionary *arialdict = [NSDictionary dictionaryWithObject: ArialFont forKey:NSFontAttributeName];    
 NSMutableAttributedString *AattrString = [[NSMutableAttributedString alloc] initWithString:title attributes: arialdict];

 UIFont *VerdanaFont = [UIFont fontWithName:@"verdana" size:12.0];
 NSDictionary *veradnadict = [NSDictionary dictionaryWithObject:VerdanaFont forKey:NSFontAttributeName];
 NSMutableAttributedString *VattrString = [[NSMutableAttributedString alloc]initWithString: newsDate attributes:veradnadict];    
 [VattrString addAttribute:NSForegroundColorAttributeName value:[UIColor blackColor] range:(NSMakeRange(0, 15))];

 [AattrString appendAttributedString:VattrString];


 lblText.attributedText = AattrString;

请注意，lblText是UILabel，outlet作为文件所有者人们可以继续追加他想要的NSMutableAttributedString ..

另请注意，我添加了verdana＆amp;我项目中的arial字体＆amp;为此添加了一个plist。

Answer 3

UILabel无法做到这一点。但你可以使用Core Text。

另一种更简单的方法可能是使用非常小的UIWebView。在这里你可以使用html命令设置字体。

Answer 4

很抱歉，但是UILabel实现无法实现，您有两个选择：

您可以创建UIWebView并将文本HTML格式化
您可以使用该功能制作自己的UILabel实现，例如Core Text

Answer 5

您可以使用多个文本字体样式和颜色的标签，而不是使用两个UILabel。这是一个例子：

UILabel *customLbl = [[UILabel alloc] initWithFrame:CGRectMake(50, 100, 200, 25)];
customLbl.backgroundColor = [UIColor yellowColor];
[self createTwoTextStyleInSingleUILabel:customLbl];// custom method calling
[self.view addSubview:customLbl];

自定义方法如下：在应用此方法之前，在项目中添加QuartzCore框架（CALayers所需）和CoreText框架（属性字符串所需）。

  #import <QuartzCore/QuartzCore.h>
  #import <CoreText/CoreText.h>  

- (void)createTwoTextStyleInSingleUILabel: (UILabel *) myLabel{
NSString *firstText = NSLocalizedString(@"First text:", nil);
NSString *secondText = [NSString stringWithFormat:@"%@ %@",firstText,@"Second text"];
CATextLayer *myLabelTextLayer;
/* Create the text layer on demand */
if (!myLabelTextLayer) {
    myLabelTextLayer = [[CATextLayer alloc] init];
    myLabelTextLayer.backgroundColor = [UIColor clearColor].CGColor;
    myLabelTextLayer.wrapped = NO;
    CALayer *layer = myLabel.layer; //assign layer to your UILabel
    myLabelTextLayer.frame = CGRectMake((layer.bounds.size.width-180)/2 + 10, (layer.bounds.size.height-30)/2 + 10, 180, 30);
    myLabelTextLayer.contentsScale = [[UIScreen mainScreen] scale];
    myLabelTextLayer.alignmentMode = kCAAlignmentCenter;
    [layer addSublayer:myLabelTextLayer];
}
/* Create the attributes (for the attributed string) */
// customizing first string
CGFloat fontSize = 16;
UIFont *boldFont = [UIFont boldSystemFontOfSize:fontSize];
CTFontRef ctBoldFont = CTFontCreateWithName((__bridge CFStringRef)boldFont.fontName, boldFont.pointSize, NULL);
CGColorRef cgColor = [UIColor redColor].CGColor;
NSDictionary *attributes = [NSDictionary dictionaryWithObjectsAndKeys:
                            (__bridge id)ctBoldFont, (id)kCTFontAttributeName,
                            cgColor, (id)kCTForegroundColorAttributeName, nil];
CFRelease(ctBoldFont);
 // customizing second string
UIFont *font = [UIFont systemFontOfSize:16];
CTFontRef ctFont = CTFontCreateWithName((__bridge CFStringRef)font.fontName, font.pointSize, NULL);
CGColorRef cgSubColor = [UIColor blackColor].CGColor;
NSDictionary *subAttributes = [NSDictionary dictionaryWithObjectsAndKeys:(__bridge id)ctFont, (id)kCTFontAttributeName,cgSubColor, (id)kCTForegroundColorAttributeName, nil];
CFRelease(ctFont);
/* Create the attributed string (text + attributes) */
NSMutableAttributedString *attrStr = [[NSMutableAttributedString alloc] initWithString:secondText attributes:attributes];
float lengthOfSecondString = 12.0; // length of second string including blank space inbetween text, space in front , space after text.. Be careful, your  app may crash here if length is beyond the second text length (lengthOfSecondString = text length + blank spaces)
[attrStr addAttributes:subAttributes range:NSMakeRange(firstText.length, lengthOfSecondString)];
// you can add another subattribute in the similar way as above , if you want change the third textstring style
/* Set the attributes string in the text layer :) */
myLabelTextLayer.string = attrStr;
myLabelTextLayer.opacity = 1.0; //to remove blurr effect

}

Answer 6

修改了Akshay的回答并用Swift实现了它：

// First part with font size 10
let firstPartInfo = [NSFontAttributeName: UIFont.systemFontOfSize(10.0)]
var attributedString = NSMutableAttributedString(string: "First Part", attributes: firstPartInfo)

// Second part with font size 20
let secondPartInfo = [NSFontAttributeName: UIFont.systemFontOfSize(20.0)]
attributedString.appendAttributedString(
    NSAttributedString(string: "Second Part", attributes: secondPartInfo))

// Lastly set the attributed text
label.attributedText = attributedString

没有理由使用第三方解决方案或子类。

是否可以在One UIlabel中设置不同的字体？

6 个答案: