I want to append an Attributed Text with another Attributed Text in Swift. Please provide any sample code for appending operation  of two attributed String in Swift.

how to append Attributed Text String with Attributed String in Swift

Multiple colours in an `NSString` or `NSMutableStrings` are not possible. So I&#39;ve heard a little about the [**`NSAttributedString`**][1] which was introduced with the **iPad SDK 3.2** (or around 3.2) and is available on the iPhone as of **iPhone SDK 4.0 beta**.

I would like to have a string that has three colours.

The reason I don&#39;t use 3 separate NSStrings, is because the length of each of the three `NSAttributedString` substrings changes often and so I would prefer, not to use any calculations to re-position 3 separate `NSString` objects.

If it&#39;s possible using `NSAttributedString` how do I make the following - (if not possible with NSAttributed string how would you do it):

![alt text][2]

**Edit:**
Remember, `@&quot;first&quot;`, `@&quot;second&quot;` and `@&quot;third&quot;` will be replaced by other strings at any time. So using hardcoded NSRange values won&#39;t work.

  [1]: http://developer.apple.com/mac/library/documentation/Cocoa/Reference/Foundation/Classes/NSAttributedString_Class/Reference/Reference.html
  [2]: http://imgur.com/eVpu7.png

How do you use NSAttributedString?

I want to do some drawing of NSAttributedStrings in fixed-width boxes, but am having trouble calculating the right height they&#39;ll take up when drawn. So far, I&#39;ve tried:

1. Calling &lt;code&gt;- (NSSize) size&lt;/code&gt;, but the results are useless (for this purpose), as they&#39;ll give whatever width the string desires.

2. Calling &lt;code&gt;- (void)drawWithRect:(NSRect)rect options:(NSStringDrawingOptions)options&lt;/code&gt; with a rect shaped to the width I want and &lt;code&gt;NSStringDrawingUsesLineFragmentOrigin&lt;/code&gt; in the options, exactly as I&#39;m using in my drawing. The results are ... difficult to understand; certainly not what I&#39;m looking for. (As is pointed out in a number of places, including &lt;A HREF=&quot;http://lists.apple.com/archives/cocoa-dev/2006/Apr/msg01540.html&quot;&gt;this&lt;/a&gt; Cocoa-Dev thread).

3. Creating a temporary NSTextView and doing:  
    &lt;code&gt;[[tmpView textStorage] setAttributedString:aString];  
    [tmpView setHorizontallyResizable:NO];  
    [tmpView sizeToFit]; &lt;/code&gt;  
When I query the frame of tmpView, the width is still as desired, and the height is often correct ... until I get to longer strings, when it&#39;s often half the size that&#39;s required. (There doesn&#39;t seem to be a max size being hit: one frame will be 273.0 high (about 300 too short), the other will be 478.0 (only 60-ish too short)).

I&#39;d appreciate any pointers, if anyone else has managed this.




How to get height for NSAttributedString at a fixed width

Say I have an `NSMutableAttributedString` .

The string has **a varied *mix*** of formatting throughout:

Here is an example:

&gt; This string is **hell to *change*** *in iOS*, it *really* **sucks**.

However, the font per se is not the font you want.

I want to:

**for each and every character, change that character to a specific *font* (say, Avenir)**

# BUT,

**for each and every character, *keep* the *mix* of *other* attributions (bold, italic, colors, etc etc) which was previously in place on that character.**

How the hell do you do this?

---


Note:

if you trivially add an attribute &quot;Avenir&quot; over the whole range: it simply **deletes all the other attribute ranges**, you lose all formatting. Unfortunately, attributes **are not**, in fact &quot;additive&quot;.


NSAttributedString, change the font overall BUT keep all other attributes?

I have been searching this for hours but I&#39;ve failed. I probably don&#39;t even know what I should be looking for.

Many applications have text and in this text are web hyperlinks in rounded rect. When I click them `UIWebView` opens. What puzzles me is that they often have custom links, for example if words starts with # it is also clickable and the application responds by opening another view. How can I do that? Is it possible with `UILabel` or do I need `UITextView` or something else?

Create tap-able &quot;links&quot; in the NSAttributedString of a UILabel?

How would it be possible to include both bold and non-bold text in a uiLabel?

I&#39;d rather not use a UIWebView.. I&#39;ve also read this may be possible using NSAttributedString but I have no idea how to use that. Any ideas?

Apple achieves this in several of their apps;
Examples Screenshot: ![link text][1] 

Thanks!
- Dom


  [1]: http://i.stack.imgur.com/cVsKG.jpg

Bold &amp; Non-Bold Text In A Single UILabel?

It&#39;s trivial to make hyperlinks clickable in a `UITextView`. You just set the &quot;detect links&quot; checkbox on the view in IB, and it detects HTTP links and turns them into hyperlinks. 

However, that still means that what the user sees is the &quot;raw&quot; link. RTF files and HTML both allow you to set up a user-readable string with a link &quot;behind&quot; it. 

It&#39;s easy to install attributed text into a text view (or a `UILabel` or `UITextField`, for that matter.) However, when that attributed text includes a link, it is not clickable.

Is there a way to make user-readable text clickable in a `UITextView`, `UILabel` or `UITextField`?

The markup is different on SO, but here is the general idea. What I want is text like this:

&gt; This morph was generated with [Face Dancer][1], Click to view in the app store.

The only thing I can get is this:

&gt; This morph was generated with Face Dancer, Click on http://example.com/facedancer to view in the app store.

  [1]: http://example.com/facedancer

How can I make a clickable link in an NSAttributedString?

I need to search some strings and set some attributes prior to merging the strings, so having NSStrings -&gt; Concatenate them -&gt; Make NSAttributedString is not an option, is there any way to concatenate attributedString to another attributedString?

How can I concatenate NSAttributedStrings?

I am using a instance of `UIWebView` to process some text and color it correctly, it gives the result as HTML but rather than displaying it in the `UIWebView` I want to display it using `Core Text` with a `NSAttributedString`. 

I am able to create and draw the `NSAttributedString` but I am unsure how I can convert and map the HTML into the attributed string.

I understand that under Mac OS X `NSAttributedString` has a `initWithHTML:` method but this was a Mac only addition and is not available for iOS.

I also know that there is a similar question to this but it had no answers, I though I would try again and see whether anyone has created a way to do this and if so, if they could share it.

Convert HTML to NSAttributedString in iOS

I am trying to get the rect for an attributed string, but the boundingRectWithSize call is not respecting the size I pass in and is returning a rect with a single line height as opposed to a large height (it is a long string). I have experimented by passing in a very large value for the height and also 0 as in the code below, but the rect returned is always the same.

    CGRect paragraphRect = [attributedText boundingRectWithSize:CGSizeMake(300,0.0)
      options:NSStringDrawingUsesDeviceMetrics
      context:nil];

Is this broken, or do I need to do something else to have it returned a rect for wrapped text?

boundingRectWithSize for NSAttributedString returning wrong size

I have a slider for a survey that display the following strings based on the value of the slider: &quot;Very Bad, Bad, Okay, Good, Very Good&quot;.  

Here is the code for the slider:

  

    - (IBAction) sliderValueChanged:(UISlider *)sender {
        scanLabel.text = [NSString stringWithFormat:@&quot; %.f&quot;, [sender value]];
        NSArray *texts=[NSArray arrayWithObjects:@&quot;Very Bad&quot;, @&quot;Bad&quot;, @&quot;Okay&quot;, @&quot;Good&quot;, @&quot;Very Good&quot;, @&quot;Very Good&quot;, nil];
        NSInteger sliderValue=[sender value]; //make the slider value in given range integer one.
        self.scanLabel.text=[texts objectAtIndex:sliderValue];
    }

I want &quot;Very Bad&quot; to be red, &quot;Bad&quot; to be orange, &quot;Okay&quot; to be yellow, &quot;Good&quot; and &quot;Very Good&quot; to be green.  

I don&#39;t understand how to use `NSAttributedString` to get this done.  


Change string color with NSAttributedString?

I am trying to get a snippet of text that is formatted in html to display nicely on an iPhone in a UITableViewCell.

So far I have this:

    NSError* error;
    NSString* source = @&quot;&lt;strong&gt;Nice&lt;/strong&gt; try, Phil&quot;;
    NSMutableAttributedString* str = [[NSMutableAttributedString alloc] initWithData:[source dataUsingEncoding:NSUTF8StringEncoding]
                                                               options:@{NSDocumentTypeDocumentAttribute: NSHTMLTextDocumentType,
                                                                         NSCharacterEncodingDocumentAttribute: [NSNumber numberWithInt:NSUTF8StringEncoding]}
                                                                  documentAttributes:nil error:&amp;error];

This kind of works. I get some text that has &#39;Nice&#39; in bold! But... it also sets the font to be Times Roman! This is not the font face I want.
I am thinking I need to set something in the documentAttributes, but, I can&#39;t find any examples anywhere.

Parsing HTML into NSAttributedText - how to set font?

How to underline a `UILabel` in Swift? I searched the Objective-C ones but couldn&#39;t quite get them to work in Swift.

How to underline a UILabel in swift?

How can I add text alignment attribute to an NSAttributedString to center the text?

Edit:
Am I doing anything wrong? It doesn&#39;t seem to change the alignment.

	CTParagraphStyleSetting setting;
	setting.spec = kCTParagraphStyleSpecifierAlignment;
	setting.valueSize = kCTCenterTextAlignment;
	
	CTParagraphStyleSetting settings[1] = {
		{kCTParagraphStyleSpecifierAlignment, sizeof(CGFloat), &amp;setting},			
	};
	
	CTParagraphStyleRef paragraph = CTParagraphStyleCreate(settings, sizeof(setting));
	
	NSMutableAttributedString *mutableAttributed = [[NSMutableAttributedString alloc] initWithAttributedString:self.attributedString];
	[mutableAttributed addAttributes:[NSDictionary dictionaryWithObjectsAndKeys:(NSObject*)paragraph ,(NSString*) kCTParagraphStyleAttributeName, nil] range:_selectedRange];

NSAttributedString add text alignment

I have some HTML data, which contains headings, paragraphs , images and lists tags.

Is there a way to display this data in one `UITextView` or `UILabel`?


Swift: Display HTML data in a label or textView

Yes, many people are saying about Rich Text in iPhone/iPad and many knows about `NSAttributedString`. 

But how to use `NSAttributedString`? I searched for much time, no extract clues for this.

I know how to set up a `NSAttributedString`, then what should I do to display a text on iPhone/iPad with rich text?

The official docs says it should be used with `CoreText.Framework`, what does that mean?

Is there any simple way like this?

    NSAttributedString *str;
    .....
    UILabel *label;
    label.attributedString = str;

iphone/ipad: How exactly use NSAttributedString?

I have tried everything but cannot seem to center this text. Can someone please tell me where the error is.

    NSMutableParagraphStyle *paragraphStyle = NSMutableParagraphStyle.new;
    paragraphStyle.alignment = NSTextAlignmentCenter;
    label.attributedText = [[NSAttributedString alloc] initWithString:cell.EventTitle.text attributes:@{NSForegroundColorAttributeName : [UIColor whiteColor],NSParagraphStyleAttributeName:paragraphStyle,NSBaselineOffsetAttributeName : @0,NSFontAttributeName : [UIFont fontWithName:@&quot;BrandonGrotesque-Black&quot; size:34]}];

Attributed Text Center Alignment

We are using custom fonts in our project. It works well in Xcode 5. In Xcode 6, it works in plain text, attributed string in code. But those attributed strings set in storyboard all revert to Helvetica when running on simulator or device, although they look all right in storyboard.

I&#39;m not sure if it&#39;s a bug of Xcode 6 or iOS 8 SDK, or the way to use custom fonts is changed in Xcode 6 / iOS 8?

Attributed string with custom fonts in storyboard does not load correctly

Is there a way to use two, or even three font colors in a single label in iOS? 

If the text &quot;hello, how are you&quot; were used as an example, the &quot;hello,&quot; would be blue, and the &quot;how are you&quot; would be green? 

Is this possible, it seems easier than creating multiple labels?

Use multiple font colors in a single label

I have the following code but my links are always blue. How do I cange the color of them?

    [_string addAttribute:NSLinkAttributeName value:tag range:NSMakeRange(position, length)];
    [_string addAttribute:NSFontAttributeName value:[UIFont fontWithName:@&quot;HelveticaNeue-Bold&quot; size:(12.0)] range:NSMakeRange(position, length)];
    [_string addAttribute:NSStrokeColorAttributeName value:[UIColor greenColor] range:NSMakeRange(position, length)];

_string is a NSMutableAttributedString and the position and length work fine.
            

    

Change the color of a link in an NSMutableAttributedString

`NSAttributedString` is just really impenetrable to me. 

I want to set a `UILabel` to have text of different sizes, and I gather `NSAttributedString` is the way to go, but I can&#39;t get anywhere with the documentation on this.

I would love it if someone could help me with a concrete example.

For instance, let&#39;s say the text I wanted was:

    (in small letters:) &quot;Presenting The Great...&quot;
    (in huge letters:) &quot;HULK HOGAN!&quot;

Can somebody show me how to do that? Or even, a reference that&#39;s plain and simple where I could learn for myself? I swear I&#39;ve tried to understand this through the documentation, and even through other examples on Stack Overflow, and I&#39;m just not getting it.

Example of NSAttributedString with two different font sizes?

I have a question regarding rounded corners and text background color for a custom `UIView`.

Basically, I need to achieve an effect like this (image attached - notice the rounded corners on one side) in a custom UIView:
![Background highlight][1]


  [1]: http://i.stack.imgur.com/BxJq5.png

I&#39;m thinking the approach to use is:

 - Use Core Text to get glyph runs.
 - Check highlight range.
 - If the current run is within the highlight range, draw a background rectangle with rounded corners and desired fill color before drawing the glyph run.
 - Draw the glyph run.

However, I&#39;m not sure whether this is the only solution (or for that matter, whether this is the most efficient solution).

Using a `UIWebView` is not an option, so I have to do it in a custom `UIView`.

My question being, is this the best approach to use, and am I on the right track? Or am I missing out something important or going about it the wrong way?

NSAttributedString background color and rounded corners

 1. From the storyboard I select the UILabel in question
 2. Then in Attribute Inspector &gt; Label &gt; [I choose] Attributed
 3. Also in Attribute Inspector &gt; Label &gt; Text&gt; [I select the content]
 4. Then I click on the font icon and choose underline

Basically, any change that I select from the Fonts window that pops up does not take effect. 

Has anyone ever successfully add underline from the storyboard?

Note: I already know how to do this in code. I want to avoid adding code.


Adding underline to UILabel attributed string from the storyboard fails

I am trying to make a simple Coffee Calculator. I need to display the amount of coffee in grams. The &quot;g&quot; symbol for grams needs to be attached to my UILabel that I am using to display the amount. The numbers in the UILabel are changing dynamically with user input just fine, but I need to add a lower case &quot;g&quot; on the end of the string that is formatted differently from the  updating numbers. The &quot;g&quot; needs to be attached to the numbers so that as the number size and position changes, the &quot;g&quot; &quot;moves&quot; with the numbers. I&#39;m sure this problem has been solved before so a link in the right direction would be helpful as I&#39;ve googled my little heart out.

I&#39;ve searched through the documentation for an attributed string and I even downloded an &quot;Attributed String Creator&quot; from the app store, but the resulting code is in Objective-C and I am using Swift. What would be awesome, and probably helpful to other developers learning this language, is a clear example of creating a custom font with custom attributes using an attributed string in Swift. The documentation for this is very confusing as there is not a very clear path on how to do so. My plan is to create the attributed string and add it to the end of my coffeeAmount string.

    var coffeeAmount: String = calculatedCoffee + attributedText

Where calculatedCoffee is an Int converted to a string and &quot;attributedText&quot; is the lowercase &quot;g&quot; with customized font that I am trying to create. Maybe I&#39;m going about this the wrong way. Any help is appreciated!



How do I make an attributed string using Swift?

I want to replace a substring (e.g. `@&quot;replace&quot;`) of an `NSAttributedString` with another `NSAttributedString`.

I am looking for an equivalent method to `NSString`&#39;s [`stringByReplacingOccurrencesOfString:withString:`](https://developer.apple.com/library/mac/documentation/Cocoa/Reference/Foundation/Classes/NSString_Class/Reference/NSString.html#//apple_ref/doc/uid/20000154-SW6) for `NSAttributedString`.

Replace substring of NSAttributedString with another NSAttributedString

I&#39;ve created a method that takes a NSAttributedString and I&#39;m looking to dynamically create a subview and label to put the string into. Because attributes like font and size need to be determined to correctly determine the size of the label, I need to determine if it is possible to iterate through values and ranges that have been applied to the attributed string?  

I understand that I could pass the attributes separately, but for sake of reusability, i&#39;d like to be able to pass as few parameters to the method as possible.



Is it possible to get a listing of attributes and ranges for an NSMutableAttributedString?

&gt; **Possible Duplicate:**  
&gt; [How to get height for NSAttributedString at a fixed width](https://stackoverflow.com/questions/2282629/how-to-get-height-for-nsattributedstring-at-a-fixed-width)  

&lt;!-- End of automatically inserted text --&gt;

Now NSAttributedString is available in iOS 6. For layout purposes, I want to know how to calculate the required height of an NSAttributedString under fixed width. I&#39;m looking for something that&#39;s equivalent to NSString&#39;s `- (CGSize)sizeWithFont:(UIFont *)font constrainedToSize:(CGSize)size` but for NSAttributedString.

To calculate the drawing size of NSAttributedStrings, there are two methods available:

 1. `- (CGSize)size` can&#39;t be used because it does not take any width into consideration.
 2. I tried `- (CGRect)boundingRectWithSize:(CGSize)size options:(NSStringDrawingOptions)options context:(NSStringDrawingContext *)context`, but somehow it doesn&#39;t give me the correct height. I think the method is buggy. If I run the following code, it gives me `bounding size: 572.324951, 19.000000` ignoring the given width of 200. It should give me something like 100 of height.

&lt;pre&gt;
    NSMutableAttributedString *attributedString = [[NSMutableAttributedString alloc] init];
    NSDictionary *attributes = @{NSFontAttributeName : [UIFont fontWithName:@&quot;HelveticaNeue&quot; size:15], NSForegroundColorAttributeName : [UIColor blueColor]};
    [attributedString appendAttributedString:[[NSAttributedString alloc] initWithString:@&quot;Attributed String\n&quot; attributes:attributes]];
    [attributedString appendAttributedString:[[NSAttributedString alloc] initWithString:@&quot;Attributed String\n&quot; attributes:attributes]];
    [attributedString appendAttributedString:[[NSAttributedString alloc] initWithString:@&quot;Attributed String\n&quot; attributes:attributes]];
    [attributedString appendAttributedString:[[NSAttributedString alloc] initWithString:@&quot;Attributed String\n&quot; attributes:attributes]];
    [attributedString appendAttributedString:[[NSAttributedString alloc] initWithString:@&quot;Attributed String\n&quot; attributes:attributes]];

    CGRect frame = [attributedString boundingRectWithSize:CGSizeMake(200, 1000) options:0 context:nil];
    NSLog(@&quot;bounding size: %f, %f&quot;, frame.size.width, frame.size.height);
&lt;/pre&gt;

There are other methods available for Mac OS X, but not for iOS.

How to calculate the height of an NSAttributedString with given width in iOS 6

I&#39;m using **iOS 6**, so attributed strings should be easy to use, right? Well... not so much.

What I want to do:

Using a custom subclass of `UIButton` (it doesn&#39;t do anything custom to `titleLabel`), I&#39;d like to have a multi-line, attributed title that is:

1. All caps (I realize that&#39;s not part of the attributes) on the first line
2. **Bolded** on the first line
3. **Underlined** on the first line
4. &quot;Normal&quot; weight on the second line
5. Non-underlined on the second line
6. Centered on both lines

I&#39;ve been able to get #&#39;s 1 through 5 so far (at least, I thought I did, but current testing is yielding errors with multi-line text), but when I tried to do something (anything!) to get the text to be centered, my app keeps crashing. When I try to get all 6 items working (through various methods), I get the following crash/error:

    Terminating app due to uncaught exception 
    &#39;NSInternalInconsistencyException&#39;, reason: 
    &#39;NSAttributedString invalid for autoresizing, 
    it must have a single spanning paragraph style
    (or none) with a non-wrapping lineBreakMode.&#39;

Based on what I&#39;ve tried, it appears that I can have one of the following options, but not both:

1. A multi-line, centered label
2. An attributed label

I can live with one or the other if I **must**, but I can&#39;t believe that I can&#39;t have what seems to be a fairly straightforward concept.

Can someone please tell me what I&#39;ve got wrong?

Here&#39;s the last iteration of the code I&#39;m trying:

    NSMutableParagraphStyle *style = [[NSParagraphStyle defaultParagraphStyle] mutableCopy];
    [style setAlignment:NSTextAlignmentCenter];
    [style setLineBreakMode:NSLineBreakByWordWrapping];
    
    UIFont *font1 = [UIFont fontWithName:@&quot;HelveticaNeue-Medium&quot; size:20.0f];
    UIFont *font2 = [UIFont fontWithName:@&quot;HelveticaNeue-Light&quot;  size:20.0f];
    NSDictionary *dict1 = @{NSUnderlineStyleAttributeName:@(NSUnderlineStyleSingle),  
                            NSFontAttributeName:font1};
    NSDictionary *dict2 = @{NSUnderlineStyleAttributeName:@(NSUnderlineStyleNone),    
                            NSFontAttributeName:font2};
    
    NSMutableAttributedString *attString = [[NSMutableAttributedString alloc] init];
    [attString appendAttributedString:[[NSAttributedString alloc] initWithString:@&quot;LINE 1\n&quot;    attributes:dict1]];
    [attString appendAttributedString:[[NSAttributedString alloc] initWithString:@&quot;line 2&quot;      attributes:dict2]];
    [[self buttonToStyle] setAttributedTitle:attString forState:UIControlStateNormal];
    [[[self buttonToStyle] titleLabel] setNumberOfLines:0];
    [[[self buttonToStyle] titleLabel] setLineBreakMode:NSLineBreakByWordWrapping];

iOS NSAttributedString on UIButton

I use `NSAttributedString` to generate a string with two different sizes. By default, its bottom alignment looks like this:

![baseline aligned sizes][1]

But I want to center it vertically, like this:
![vertically centered sizes][2]

To be clear, this is a single attributed string, not two or more. This is a simplified example to describe my question, what I&#39;d actually like to do is more complex.

  [1]: http://i.stack.imgur.com/CmMcd.png
  [2]: http://i.stack.imgur.com/jb9D6.png

Center two fonts with different different sizes vertically in an NSAttributedString

I&#39;m completely in the dark with Core Text&#39;s line spacing. I&#39;m using NSAttributedString and I specify the following attributes on it:
- kCTFontAttributeName
- kCTParagraphStyleAttributeName

From this the CTFrameSetter gets created and drawn to context.

In the paragraph style attribute I&#39;d like to specify the height of the lines. 

When I use kCTParagraphStyleSpecifierLineHeightMultiple each line receives padding at the top of the text, instead of the text being displayed in the middle of this height.

When I use kCTParagraphStyleSpecifierLineSpacing a padding is added to the bottom of the text. 

Please help me achieve a specified line height with the text(glyphs) in the middle of that height, instead of the text sitting either at the bottom or the top of the line.

**Is this not possible without going down the route of explicitly creating CTLine &#39;s and so forth?**

Core Text - NSAttributedString line height done right?

I have a [``UITextView``](https://developer.apple.com/library/ios/documentation/UIKit/Reference/UITextView_Class/index.html) which displays an ``NSAttributedString``. The textView&#39;s ``editable`` and ``selectable`` properties are both set to ``false``.

The attributedString contains a URL and I&#39;d like to allow tapping the URL to open a browser. But interaction with the URL is only possible if the ``selectable`` attribute is set to  ``true``.

**How can I allow user interaction only for tapping links, but not for selecting text?**

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