blocks|key|182987|text|使用类似这样的代码(不检查编译器)|type|unstyled|depth|inlineStyleRanges|entityRanges|data|182988|NSMutableAttributedString+*string+=+[[NSMutableAttributedString+alloc]initWithString:self.text.text];
NSRange+range=[self.myLabel.text+rangeOfString:texts[sliderValue]];+//myLabel+is+the+outlet+from+where+you+will+get+the+text,+it+can+be+same+or+different

NSArray+*colors=@[[UIColor+redColor],
++++++++++++++++++[UIColor+redColor],
++++++++++++++++++[UIColor+yellowColor],
++++++++++++++++++[UIColor+greenColor]
+++++++++++++++++];

[string+addAttribute:NSForegroundColorAttributeName+
+++++++++++++++value:colors[sliderValue]+
+++++++++++++++range:range];+++++++++++

[self.scanLabel+setAttributedText:texts[sliderValue]];|code-block|syntax|javascript|182989|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

Use something like this (Not compiler checked)

<pre><code>NSMutableAttributedString *string = [[NSMutableAttributedString alloc]initWithString:self.text.text];
NSRange range=[self.myLabel.text rangeOfString:texts[sliderValue]]; //myLabel is the outlet from where you will get the text, it can be same or different

NSArray *colors=@[[UIColor redColor],
 [UIColor redColor],
 [UIColor yellowColor],
 [UIColor greenColor]
 ];

[string addAttribute:NSForegroundColorAttributeName 
 value:colors[sliderValue] 
 range:range]; 

[self.scanLabel setAttributedText:texts[sliderValue]];
</code></pre>

blocks|key|183013|text|不需要使用NSAttributedString。您所需要的只是一个带有适当textColor的简单标签。此外，这个简单的解决方案适用于所有版本的iOS，而不仅仅是iOS+6。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|183014|但是，如果您不必要地希望使用NSAttributedString，您可以这样做：|183015|UIColor+*color+=+[UIColor+redColor];+//+select+needed+color
NSString+*string+=+...+//+the+string+to+colorize
NSDictionary+*attrs+=+@{+NSForegroundColorAttributeName+:+color+};
NSAttributedString+*attrStr+=+[[NSAttributedString+alloc]+initWithString:string+attributes:attrs];
self.scanLabel.attributedText+=+attrStr;|code-block|syntax|javascript|183016|entityMap^0|5|I|11|9|0|E|I|0|0^^$0|@$1|2|3|4|5|6|7|O|8|@$9|P|A|Q|B|C]|$9|R|A|S|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|T|8|@$9|U|A|V|B|C]]|D|@]|E|$]]|$1|H|3|I|5|J|7|W|8|@]|D|@]|E|$K|L]]|$1|M|3|-4|5|6|7|X|8|@]|D|@]|E|$]]]|N|$]]

There is no need for using <code>NSAttributedString</code>. All you need is a simple label with the proper <code>textColor</code>. Plus this simple solution will work with all versions of iOS, not just iOS 6. 

But if you needlessly wish to use <code>NSAttributedString</code>, you can do something like this:

<pre><code>UIColor *color = [UIColor redColor]; // select needed color
NSString *string = ... // the string to colorize
NSDictionary *attrs = @{ NSForegroundColorAttributeName : color };
NSAttributedString *attrStr = [[NSAttributedString alloc] initWithString:string attributes:attrs];
self.scanLabel.attributedText = attrStr;
</code></pre>

blocks|key|401011|text|您可以创建NSAttributedString|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|401012|NSDictionary+*attributes+=+@{+NSForegroundColorAttributeName+:+[UIColor+redColor]+};
NSAttributedString+*attrStr+=+[[NSAttributedString+alloc]+initWithString:@"My+Color+String"+attributes:attrs];|code-block|syntax|javascript|401013|或NSMutableAttributedString，将自定义属性应用于范围。|401014|NSMutableAttributedString+*attributedString+=+[[NSMutableAttributedString+alloc]+initWithString:[NSString+stringWithFormat:@"%25@%25@",+methodPrefix,+method]+attributes:+@{+NSFontAttributeName+:+FONT_MYRIADPRO(48)+}];
[attributedString+addAttribute:NSFontAttributeName+value:FONT_MYRIADPRO_SEMIBOLD(48)+range:NSMakeRange(methodPrefix.length,+method.length)];|401015|可用属性：NSAttributedStringKey|401016|401017|更新：|401018|Swift+5.1|401019|let+message:+String+=+greeting+%2B+someMessage
let+paragraphStyle+=+NSMutableParagraphStyle()
paragraphStyle.lineSpacing+=+2.0
++++
//+Note:+UIFont(appFontFamily:ofSize:)+is+extended+init.
let+regularAttributes:+[NSAttributedString.Key+:+Any]+=+[.font+:+UIFont(appFontFamily:+.regular,+ofSize:+15)!,+.paragraphStyle+:+paragraphStyle]
let+boldAttributes+=+[NSAttributedString.Key.font+:+UIFont(appFontFamily:+.semiBold,+ofSize:+15)!]

let+mutableString+=+NSMutableAttributedString(string:+message,+attributes:+regularAttributes)
mutableString.addAttributes(boldAttributes,+range:+NSMakeRange(0,+greeting.count))|401020|entityMap|0|LINK|mutability|MUTABLE|url|https://developer.apple.com/documentation/foundation/nsattributedstring|1|https://developer.apple.com/documentation/foundation/nsmutableattributedstring|2|https://developer.apple.com/documentation/foundation/nsattributedstringkey?language=objc^0|5|I|5|I|0|0|0|1|P|1|P|1|0|0|5|L|2|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|19|8|@$9|1A|A|1B|B|C]]|D|@$9|1C|A|1D|1|1E]]|E|$]]|$1|F|3|G|5|H|7|1F|8|@]|D|@]|E|$I|J]]|$1|K|3|L|5|6|7|1G|8|@$9|1H|A|1I|B|C]]|D|@$9|1J|A|1K|1|1L]]|E|$]]|$1|M|3|N|5|H|7|1M|8|@]|D|@]|E|$I|J]]|$1|O|3|P|5|6|7|1N|8|@]|D|@$9|1O|A|1P|1|1Q]]|E|$]]|$1|Q|3|-4|5|6|7|1R|8|@]|D|@]|E|$]]|$1|R|3|S|5|6|7|1S|8|@]|D|@]|E|$]]|$1|T|3|U|5|6|7|1T|8|@]|D|@]|E|$]]|$1|V|3|W|5|H|7|1U|8|@]|D|@]|E|$I|J]]|$1|X|3|-4|5|6|7|1V|8|@]|D|@]|E|$]]]|Y|$Z|$5|10|11|12|E|$13|14]]|15|$5|10|11|12|E|$13|16]]|17|$5|10|11|12|E|$13|18]]]]

You can create <a href="https://developer.apple.com/documentation/foundation/nsattributedstring" rel="noreferrer"><code>NSAttributedString</code></a>
<pre><code>NSDictionary *attributes = @{ NSForegroundColorAttributeName : [UIColor redColor] };
NSAttributedString *attrStr = [[NSAttributedString alloc] initWithString:@&quot;My Color String&quot; attributes:attrs];
</code></pre>
OR <a href="https://developer.apple.com/documentation/foundation/nsmutableattributedstring" rel="noreferrer"><code>NSMutableAttributedString</code></a> to apply custom attributes with Ranges.
<pre><code>NSMutableAttributedString *attributedString = [[NSMutableAttributedString alloc] initWithString:[NSString stringWithFormat:@&quot;%@%@&quot;, methodPrefix, method] attributes: @{ NSFontAttributeName : FONT_MYRIADPRO(48) }];
[attributedString addAttribute:NSFontAttributeName value:FONT_MYRIADPRO_SEMIBOLD(48) range:NSMakeRange(methodPrefix.length, method.length)];
</code></pre>
Available Attributes: <a href="https://developer.apple.com/documentation/foundation/nsattributedstringkey?language=objc" rel="noreferrer">NSAttributedStringKey</a>
<hr />
UPDATE:
<h2>Swift 5.1</h2>
<pre><code>let message: String = greeting + someMessage
let paragraphStyle = NSMutableParagraphStyle()
paragraphStyle.lineSpacing = 2.0
 
// Note: UIFont(appFontFamily:ofSize:) is extended init.
let regularAttributes: [NSAttributedString.Key : Any] = [.font : UIFont(appFontFamily: .regular, ofSize: 15)!, .paragraphStyle : paragraphStyle]
let boldAttributes = [NSAttributedString.Key.font : UIFont(appFontFamily: .semiBold, ofSize: 15)!]

let mutableString = NSMutableAttributedString(string: message, attributes: regularAttributes)
mutableString.addAttributes(boldAttributes, range: NSMakeRange(0, greeting.count))
</code></pre>

blocks|key|183086|text|Swift+5.2更新|type|unstyled|depth|inlineStyleRanges|entityRanges|data|183087|var+attributes+=+[NSAttributedString.Key:+AnyObject]()

attributes[.foregroundColor]+=+UIColor.blue

let+attributedString+=+NSAttributedString(string:+"Very+Bad",
attributes:+attributes)

label.attributedText+=+attributedString|code-block|syntax|javascript|183088|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

Update for Swift 5.2
<pre><code>var attributes = [NSAttributedString.Key: AnyObject]()

attributes[.foregroundColor] = UIColor.blue

let attributedString = NSAttributedString(string: &quot;Very Bad&quot;,
attributes: attributes)

label.attributedText = attributedString
</code></pre>

blocks|key|183112|text|斯威夫特的一个班轮：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|183113|NSAttributedString(string:+"Red+Text",+attributes:+[.foregroundColor:+UIColor.red])|code-block|syntax|javascript|183114|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

One liner for Swift:

<pre><code>NSAttributedString(string: "Red Text", attributes: [.foregroundColor: UIColor.red])
</code></pre>

blocks|key|183138|text|我喜欢让事情变得更简单，试试这个|type|unstyled|depth|inlineStyleRanges|entityRanges|data|183139|-(NSArray+*)+reArrangeArrays:(NSArray+*)iObjects+{
++++
++++NSMutableArray+*Words+=+[[NSMutableArray+alloc]+init];
++++NSMutableArray+*Colors+=+[[NSMutableArray+alloc]+init];
++++
++++CFIndex+OneThree+=+0;
++++CFIndex+TwoFour+=+1;
++++for+(CFIndex+iCounter+=+0;+iCounter+<+iObjects.count;+iCounter+%2B%2B)+{
++++++++
++++++++[Words+addObject:[iObjects+objectAtIndex:OneThree]];
++++++++[Colors+addObject:[iObjects+objectAtIndex:TwoFour]];
++++++++
++++++++OneThree+=+OneThree+%2B+2;
++++++++TwoFour+=+TwoFour+%2B+2;
++++++++
++++++++if+(OneThree+>+iObjects.count+%7C%7C+TwoFour+>+iObjects.count)
++++++++++++break;
++++}
++++
++++return+@[[NSArray+arrayWithArray:Words],[NSArray+arrayWithArray:Colors]];
}

%2B(NSMutableAttributedString+*)+OriginalText:(NSString+*)OriginalText+WordsAndColors:(NSArray+*)WordsAndColors+TheRestOfTheTextColor:(UIColor+*)TheRestColor+{
++++
++++NSArray+*Text+=+[[self.alloc+reArrangeArrays:WordsAndColors]+objectAtIndex:0];
++++NSArray+*Color+=+[[self.alloc+reArrangeArrays:WordsAndColors]+objectAtIndex:1];

++++NSMutableAttributedString+*MutableAttString+=+[[NSMutableAttributedString+alloc]+initWithString:OriginalText+attributes:@{NSForegroundColorAttributeName+:+TheRestColor}];

++++NSString+*text+=+OriginalText;

++++if+(OriginalText+!=+nil)+{

++++for+(NSUInteger+Counter+=+0;+Counter+<+Color.count;+Counter+%2B%2B)+{

++++NSRegularExpression+*regex+=+[NSRegularExpression+regularExpressionWithPattern:[NSString+stringWithFormat:@"(%25@)",[Text+objectAtIndex:Counter]]+options:kNilOptions+error:nil];

++++NSRange+range+=+NSMakeRange(0+,text.length);

++++[regex+enumerateMatchesInString:text+options:kNilOptions+range:range+usingBlock:%5E(NSTextCheckingResult+*result,+NSMatchingFlags+flags,+BOOL+*stop)+{

++++++++NSRange+subStringRange+=+[result+rangeAtIndex:0];

++++++++[MutableAttString+addAttribute:NSForegroundColorAttributeName+value:[Color+objectAtIndex:Counter]+range:subStringRange];

++++}];


++++}
}
++++return+MutableAttString;
}|code-block|syntax|javascript|183140|下面是如何使用|183141|+NSString+*Text+=+@"Made+by+@CrazyMind90";
++++++++
+NSMutableAttributedString+*AttriString+=+[ViewController+OriginalText:Text
++++++++++++WordsAndColors:@[
++++++++++++++++
++++++++++++@"Made",UIColor.redColor,
++++++++++++@"by",UIColor.yellowColor,
++++++++++++@"@CrazyMind90",UIColor.blueColor,
++++++++++++
++++++++++++]
++++++++++++
+++++++++++TheRestOfTheTextColor:UIColor.whiteColor];
++++++++
++++
+++++++++++//Not+TextView.text+BUT+TextView.attributedText
+++++++++++TextView.attributedText+=+AttriString;|183142|The+result|offset|length|183143|。。|183144|entityMap|0|LINK|mutability|MUTABLE|url|https://i.stack.imgur.com/H8lYh.png^0|0|0|0|0|0|A|0|0|0^^$0|@$1|2|3|4|5|6|7|Y|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|Z|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|10|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|11|8|@]|9|@]|A|$E|F]]|$1|K|3|L|5|6|7|12|8|@]|9|@$M|13|N|14|1|15]]|A|$]]|$1|O|3|P|5|6|7|16|8|@]|9|@]|A|$]]|$1|Q|3|-4|5|6|7|17|8|@]|9|@]|A|$]]]|R|$S|$5|T|U|V|A|$W|X]]]]

I love making things easier , try this one
<pre><code>-(NSArray *) reArrangeArrays:(NSArray *)iObjects {
 
 NSMutableArray *Words = [[NSMutableArray alloc] init];
 NSMutableArray *Colors = [[NSMutableArray alloc] init];
 
 CFIndex OneThree = 0;
 CFIndex TwoFour = 1;
 for (CFIndex iCounter = 0; iCounter &lt; iObjects.count; iCounter ++) {
 
 [Words addObject:[iObjects objectAtIndex:OneThree]];
 [Colors addObject:[iObjects objectAtIndex:TwoFour]];
 
 OneThree = OneThree + 2;
 TwoFour = TwoFour + 2;
 
 if (OneThree &gt; iObjects.count || TwoFour &gt; iObjects.count)
 break;
 }
 
 return @[[NSArray arrayWithArray:Words],[NSArray arrayWithArray:Colors]];
}

+(NSMutableAttributedString *) OriginalText:(NSString *)OriginalText WordsAndColors:(NSArray *)WordsAndColors TheRestOfTheTextColor:(UIColor *)TheRestColor {
 
 NSArray *Text = [[self.alloc reArrangeArrays:WordsAndColors] objectAtIndex:0];
 NSArray *Color = [[self.alloc reArrangeArrays:WordsAndColors] objectAtIndex:1];

 NSMutableAttributedString *MutableAttString = [[NSMutableAttributedString alloc] initWithString:OriginalText attributes:@{NSForegroundColorAttributeName : TheRestColor}];

 NSString *text = OriginalText;

 if (OriginalText != nil) {

 for (NSUInteger Counter = 0; Counter &lt; Color.count; Counter ++) {

 NSRegularExpression *regex = [NSRegularExpression regularExpressionWithPattern:[NSString stringWithFormat:@&quot;(%@)&quot;,[Text objectAtIndex:Counter]] options:kNilOptions error:nil];

 NSRange range = NSMakeRange(0 ,text.length);

 [regex enumerateMatchesInString:text options:kNilOptions range:range usingBlock:^(NSTextCheckingResult *result, NSMatchingFlags flags, BOOL *stop) {

 NSRange subStringRange = [result rangeAtIndex:0];

 [MutableAttString addAttribute:NSForegroundColorAttributeName value:[Color objectAtIndex:Counter] range:subStringRange];

 }];


 }
}
 return MutableAttString;
}

</code></pre>
And this is how to use
<pre><code>
 NSString *Text = @&quot;Made by @CrazyMind90&quot;;
 
 NSMutableAttributedString *AttriString = [ViewController OriginalText:Text
 WordsAndColors:@[
 
 @&quot;Made&quot;,UIColor.redColor,
 @&quot;by&quot;,UIColor.yellowColor,
 @&quot;@CrazyMind90&quot;,UIColor.blueColor,
 
 ]
 
 TheRestOfTheTextColor:UIColor.whiteColor];
 
 
 //Not TextView.text BUT TextView.attributedText
 TextView.attributedText = AttriString;

</code></pre>
<a href="https://i.stack.imgur.com/H8lYh.png" rel="nofollow noreferrer">The result</a>
..

I have a slider for a survey that display the following strings based on the value of the slider: "Very Bad, Bad, Okay, Good, Very Good". 

Here is the code for the slider:

<pre><code>- (IBAction) sliderValueChanged:(UISlider *)sender {
 scanLabel.text = [NSString stringWithFormat:@" %.f", [sender value]];
 NSArray *texts=[NSArray arrayWithObjects:@"Very Bad", @"Bad", @"Okay", @"Good", @"Very Good", @"Very Good", nil];
 NSInteger sliderValue=[sender value]; //make the slider value in given range integer one.
 self.scanLabel.text=[texts objectAtIndex:sliderValue];
}
</code></pre>

I want "Very Bad" to be red, "Bad" to be orange, "Okay" to be yellow, "Good" and "Very Good" to be green. 

I don't understand how to use <code>NSAttributedString</code> to get this done.

Change string color with NSAttributedString?

编译器

Swift

我有一个用于调查的滑块，它根据滑块的值显示以下字符串："Very Bad，Bad，of，Good，Very Good“。以下是滑块的代码：- (IBAction) sliderValueChanged:(UISlider *)sender {    scanLabel.text = [NSString stringWi...

问是否使用NSAttributedString更改字符串颜色？
EN

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问是否使用NSAttributedString更改字符串颜色？
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