I am encountering a small problem that is that my label text is expanded as you can see on the picture below:
I would like to know how to get normal text please.
If you know how to do that, please let me know.
Here is the code :
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view.
let appDelegate: AppDelegate = UIApplication.shared.delegate as! AppDelegate
appDelegate.updateUserActivityOnApp(isFirstConnection: false)
//print(self.view.frame.size.height - (self.extraPhoto1.frame.size.height + self.extraPhoto1.frame.origin.y))
if self.view.frame.size.height - (self.extraPhoto1.frame.size.height + self.extraPhoto1.frame.origin.y) >= 140 {
descriptionTopSpaceConstraint.constant = 20
self.view.layoutIfNeeded()
}
profilePicture.image = nil
descriptionTxtView.isEditable = false
descriptionTxtView.text! = ""
extraPhoto1.image = nil
extraPhoto2.image = nil
extraPhoto3.image = nil
usernameCountryLbl.text! = "Loading..."
self.navigationItem.setHidesBackButton(true, animated:true)
var attrStr = NSMutableAttributedString(string: "this is some very long test string for justification. this is some very long test string for justification. this is some very long test string for justification. this is some very long test string for justification")
var paragraphStyle = NSMutableParagraphStyle()
paragraphStyle.alignment = NSTextAlignment.justified
paragraphStyle.hyphenationFactor = 1
attrStr.addAttribute(NSAttributedString.Key.paragraphStyle, value: paragraphStyle, range: NSMakeRange(0, attrStr.length))
attrStr.addAttribute(NSAttributedString.Key.kern, value: -0.1, range: NSMakeRange(0, attrStr.length))
self.descriptionTxtView.attributedText = attrStr // label is the UILabel where you want the text to be displayed
self.descriptionTxtView.sizeToFit()
}
Thank you very much
textAligment.natural as #Rob mentioned is one of the options in case you don't care about your text being justified. Otherwise the only way is to use NSMutableAttributedString and hyphenationFactor. In case you need it to be justified you can do something like this:
var attrStr = NSMutableAttributedString(string: "this is some very long test string for justification. this is some very long test string for justification. this is some very long test string for justification. this is some very long test string for justification")
var paragraphStyle = NSMutableParagraphStyle()
paragraphStyle.alignment = NSTextAlignment.justified
paragraphStyle.hyphenationFactor = 1
attrStr.addAttribute(NSAttributedString.Key.paragraphStyle, value: paragraphStyle, range: NSMakeRange(0, attrStr.length))
attrStr.addAttribute(NSAttributedString.Key.kern, value: -0.1, range: NSMakeRange(0, attrStr.length))
label.attributedText = attrStr // label is the UILabel where you want the text to be displayed
label.sizeToFit()
label.numberOfLines = 0
Set your text view's textAlignment to .natural instead of .justified.
I am trying to create a bullet list using NSAttributedString and UITextView. And, here is what I was able to achieve so far:
As one can see, there is a small "shift" between two lines. Here is a fragment of code which I use to build attributed string:
func add(bulletList strings: [String],
indentation: CGFloat = 15,
lineSpacing: CGFloat = 3,
paragraphSpacing: CGFloat = 10) {
func createParagraphAttirbute() -> NSParagraphStyle {
var paragraphStyle: NSMutableParagraphStyle
let nonOptions = NSDictionary() as! [NSTextTab.OptionKey: Any]
paragraphStyle = NSParagraphStyle.default.mutableCopy() as! NSMutableParagraphStyle
paragraphStyle.tabStops = [
NSTextTab(textAlignment: .left, location: indentation, options: nonOptions)]
paragraphStyle.defaultTabInterval = indentation
paragraphStyle.firstLineHeadIndent = 0
paragraphStyle.lineSpacing = lineSpacing
paragraphStyle.paragraphSpacing = paragraphSpacing
paragraphStyle.headIndent = indentation
return paragraphStyle
}
var buffer = NSMutableAttributedString.init()
for string in strings {
let formattedString = "\u{2022} \(string)\n"
let attributedString = NSMutableAttributedString(string: formattedString)
let paragraphStyle = createParagraphAttirbute()
attributedString.addAttributes(
[NSAttributedStringKey.paragraphStyle : paragraphStyle],
range: NSMakeRange(0, attributedString.length))
attributedString.addAttributes(
textAttributes,
range: NSMakeRange(0, attributedString.length))
let string:NSString = NSString(string: formattedString)
let rangeForBullet:NSRange = string.range(of: bulletPoint)
attributedString.addAttributes(bulletAttirbutes, range: rangeForBullet)
buffer.append(attributedString)
}
}
Do you think something is wrong with selected paragraph parameters? Because the code does almost what is expected, excluding this gap.
Update 1
Following #the4kman advice, I've changed provided code like this:
paragraphStyle.firstLineHeadIndent = indentation
But now I have all lines aligned with each other, including the bullet point:
Update 2
Ok, the solution was quite simple - replace space with tab. See updated code below.
#the4kman, #Krunal, Thank you for your responses! The solution was even more simple. Replacing space symbol with \t in let formattedString = "\u{2022} \(string)\n gives you valid indentation.
For completeness, the full solution code is (just replacing one char):
func add(bulletList strings: [String],
font: UIFont,
indentation: CGFloat = 15,
lineSpacing: CGFloat = 3,
paragraphSpacing: CGFloat = 10,
textColor: UIColor = .black,
bulletColor: UIColor = .red) -> NSAttributedString {
func createParagraphAttirbute() -> NSParagraphStyle {
var paragraphStyle: NSMutableParagraphStyle
let nonOptions = NSDictionary() as! [NSTextTab.OptionKey: Any]
paragraphStyle = NSParagraphStyle.default.mutableCopy() as! NSMutableParagraphStyle
paragraphStyle.tabStops = [
NSTextTab(textAlignment: .left, location: indentation, options: nonOptions)]
paragraphStyle.defaultTabInterval = indentation
paragraphStyle.firstLineHeadIndent = 0
paragraphStyle.lineSpacing = lineSpacing
paragraphStyle.paragraphSpacing = paragraphSpacing
paragraphStyle.headIndent = indentation
return paragraphStyle
}
let bulletPoint = "\u{2022}"
let textAttributes: [NSAttributedStringKey: Any] = [.font: font, .foregroundColor: textColor]
let bulletAttributes: [NSAttributedStringKey: Any] = [.font: font, .foregroundColor: bulletColor]
let buffer = NSMutableAttributedString.init()
for string in strings {
let formattedString = "\(bulletPoint)\t\(string)\n"
let attributedString = NSMutableAttributedString(string: formattedString)
let paragraphStyle = createParagraphAttirbute()
attributedString.addAttributes(
[NSAttributedStringKey.paragraphStyle : paragraphStyle],
range: NSMakeRange(0, attributedString.length))
attributedString.addAttributes(
textAttributes,
range: NSMakeRange(0, attributedString.length))
let string:NSString = NSString(string: formattedString)
let rangeForBullet:NSRange = string.range(of: bulletPoint)
attributedString.addAttributes(bulletAttributes, range: rangeForBullet)
buffer.append(attributedString)
}
return buffer
}
Here's a simple Objective-C snippet, based mostly on the accepted answer:
NSString* text =
"•\tSome text for bullet 1.\n"
"•\tSome text for bullet 2.\n"
"•\tSome text for bullet 3."
UIFont* bodyFont = [UIFont preferredFontForTextStyle: UIFontTextStyleBody];
CGFloat indentSize = bodyFont.pointSize;
NSMutableParagraphStyle *paraStyle = [[[NSMutableParagraphStyle alloc] init];
paraStyle.alignment = NSTextAlignmentLeft;
paraStyle.tabStops = #[ [[[NSTextTab alloc] initWithTextAlignment:NSTextAlignmentLeft location:indentSize options:#{}] ];
paraStyle.defaultTabInterval = indentSize;
paraStyle.headIndent = indentSize;
paraStyle.firstLineHeadIndent = 0;
paraStyle.lineHeightMultiple = 0.85;
paraStyle.lineSpacing = 0;
paraStyle.paragraphSpacing = bodyFont.lineHeight * 0.25;
paraStyle.paragraphSpacingBefore = 0;
[atrStr appendAttributedString:
[[[NSMutableAttributedString alloc] initWithString:avc.message attributes:#{
NSParagraphStyleAttributeName:paraStyle,
NSFontAttributeName: bodyFont,
}]];
I have a label with:
label.numberOfLines = 0
And I'm trying to make text of this label strikethrough with:
let index: NSMutableAttributedString = NSMutableAttributedString(string: label.text!)
index.addAttributes([NSStrikethroughStyleAttributeName: NSUnderlineStyle.styleSingle.rawValue, NSStrikethroughColorAttributeName: UIColor.red], range: NSMakeRange(0, index.length))
label.textColor = UIColor.red
label.attributedText = index
Is it true that attributed string is not working with multilines or with labels with numberOfLines set to 0? And if so, how to make multiline text strikethrough?
Works fine with multiline if you add NSBaselineOffsetAttributeName before:
let attributeString: NSMutableAttributedString = NSMutableAttributedString(string: (object?.title)!)
attributeString.addAttribute(NSBaselineOffsetAttributeName, value: 0, range: NSMakeRange(0, attributeString.length))
attributeString.addAttribute(NSStrikethroughStyleAttributeName, value: 2, range: NSMakeRange(0, attributeString.length))
Your code should be like,
let index: NSMutableAttributedString = NSMutableAttributedString(string: lbl.text!)
index.addAttributes([NSStrikethroughStyleAttributeName: NSUnderlineStyle.styleSingle.rawValue, NSStrikethroughColorAttributeName: UIColor.red], range: NSMakeRange(0, index.length))
lbl.textColor = UIColor.red
lbl.attributedText = index
because index is your mutable string! not title!
And you can not use strike through with multi line label.
If you want strike through effect in multiple lines then you can use UITextView instead of label!
Write it like,
self.label.numberOfLines = 0
let attributeString: NSMutableAttributedString = NSMutableAttributedString(string: self.label.text!)
attributeString.addAttribute(NSStrikethroughStyleAttributeName, value: 1, range: NSMakeRange(0, attributeString.length))
self.label.attributedText = attributeString
Working at my end.
I came up with two solutions. They are based on #SivajeeBattina answer.
First one is to strike out text with help of http://adamvarga.com/strike/.
private func returnStrikedOutTextFromString(_ str: String) -> String {
var newString = ""
let normal = "АБВГДЕЁЖЗИЙКЛМНОПРСТУФХЦЧШЩЪЫЬЭЮЯабвгдеёжзийклмнопрстуфхцчшщъыьэюя "
let strikethrough = "А̶Б̶В̶Г̶Д̶Е̶Ё̶Ж̶З̶И̶Й̶К̶Л̶М̶Н̶О̶П̶Р̶С̶Т̶У̶Ф̶Х̶Ц̶Ч̶Ш̶Щ̶Ъ̶Ы̶Ь̶Э̶Ю̶Я̶а̶б̶в̶г̶д̶е̶ё̶ж̶з̶и̶й̶к̶л̶м̶н̶о̶п̶р̶с̶т̶у̶ф̶х̶ц̶ч̶ш̶щ̶ъ̶ы̶ь̶э̶ю̶я̶ ̶̶"
for i in 0..<str.characters.count {
let range: Range<String.Index> =
normal.range(of: str
.substring(to: str.index(str.startIndex, offsetBy: i + 1))
.substring(from: str.index(str.startIndex, offsetBy: i)))!
let index: Int = normal.distance(from: normal.startIndex, to: range.lowerBound)
newString = String(format: "%#%#", newString,
NSLocalizedString(strikethrough
.substring(to: strikethrough.index(strikethrough.startIndex, offsetBy: index + 1))
.substring(from: strikethrough.index(strikethrough.startIndex, offsetBy: index)),
comment: ""))
}
return newString
}
And second one is: https://github.com/GuntisTreulands/UnderLineLabel
The issue I am having is that I want to be able to change the textColor of certain text in a TextView. I am using a concatenated string, and just want the strings I am appending into the TextView's text. It appears that what I want to use is NSMutableAttributedString, but I am not finding any resources of how to use this in Swift. What I have so far is something like this:
let string = "A \(stringOne) with \(stringTwo)"
var attributedString = NSMutableAttributedString(string: string)
textView.attributedText = attributedString
From here I know I need to find the range of words that need to have their textColor changed and then add them to the attributed string. What I need to know is how to find the correct strings from the attributedString, and then change their textColor.
Since I have too low of a rating I can't answer my own question, but here is the answer I found
I found my own answer by translating from translating some code from
Change attributes of substrings in a NSAttributedString
Here is the example of implementation in Swift:
let string = "A \(stringOne) and \(stringTwo)"
var attributedString = NSMutableAttributedString(string:string)
let stringOneRegex = NSRegularExpression(pattern: nameString, options: nil, error: nil)
let stringOneMatches = stringOneRegex.matchesInString(longString, options: nil, range: NSMakeRange(0, attributedString.length))
for stringOneMatch in stringOneMatches {
let wordRange = stringOneMatch.rangeAtIndex(0)
attributedString.addAttribute(NSForegroundColorAttributeName, value: UIColor.nameColor(), range: wordRange)
}
textView.attributedText = attributedString
Since I am wanting to change the textColor of multiple Strings I will make a helper function to handle this, but this works for changing the textColor.
let mainString = "Hello World"
let stringToColor = "World"
SWIFT 5
let range = (mainString as NSString).range(of: stringToColor)
let mutableAttributedString = NSMutableAttributedString.init(string: mainString)
mutableAttributedString.addAttribute(NSAttributedString.Key.foregroundColor, value: UIColor.red, range: range)
textField = UITextField.init(frame: CGRect(x:10, y:20, width:100, height: 100))
textField.attributedText = mutableAttributedString
SWIFT 4.2
let range = (mainString as NSString).range(of: stringToColor)
let mutableAttributedString = NSMutableAttributedString.init(string: mainString)
mutableAttributedString.addAttribute(NSAttributedStringKey.foregroundColor, value: UIColor.red, range: range)
textField = UITextField.init(frame: CGRect(x:10, y:20, width:100, height: 100))
textField.attributedText = mutableAttributedString
I see you have answered the question somewhat, but to provide a slightly more concise way without using regex to answer to the title question:
To change the colour of a length of text you need to know the start and end index of the coloured-to-be characters in the string e.g.
var main_string = "Hello World"
var string_to_color = "World"
var range = (main_string as NSString).rangeOfString(string_to_color)
Then you convert to attributed string and use 'add attribute' with NSForegroundColorAttributeName:
var attributedString = NSMutableAttributedString(string:main_string)
attributedString.addAttribute(NSForegroundColorAttributeName, value: UIColor.redColor() , range: range)
A list of further standard attributes you can set can be found in Apple's documentation
Swift 2.1 Update:
let text = "We tried to make this app as most intuitive as possible for you. If you have any questions don't hesitate to ask us. For a detailed manual just click here."
let linkTextWithColor = "click here"
let range = (text as NSString).rangeOfString(linkTextWithColor)
let attributedString = NSMutableAttributedString(string:text)
attributedString.addAttribute(NSForegroundColorAttributeName, value: UIColor.redColor() , range: range)
self.helpText.attributedText = attributedString
self.helpText is a UILabel outlet.
Swift 4.2 and Swift 5 colorise parts of the string.
A very easy way to use NSMutableAttributedString while extending the String. This also can be used to colourize more than one word in the whole string.
import UIKit
extension String {
func attributedStringWithColor(_ strings: [String], color: UIColor, characterSpacing: UInt? = nil) -> NSAttributedString {
let attributedString = NSMutableAttributedString(string: self)
for string in strings {
let range = (self as NSString).range(of: string)
attributedString.addAttribute(NSAttributedString.Key.foregroundColor, value: color, range: range)
}
guard let characterSpacing = characterSpacing else {return attributedString}
attributedString.addAttribute(NSAttributedString.Key.kern, value: characterSpacing, range: NSRange(location: 0, length: attributedString.length))
return attributedString
}
}
Now you can use globally at any viewcontroller you want:
let attributedWithTextColor: NSAttributedString = "Doc, welcome back :)".attributedStringWithColor(["Doc", "back"], color: UIColor.black)
myLabel.attributedText = attributedWithTextColor
Answer is already given in previous posts but i have a different way of doing this
Swift 3x :
var myMutableString = NSMutableAttributedString()
myMutableString = NSMutableAttributedString(string: "Your full label textString")
myMutableString.setAttributes([NSFontAttributeName : UIFont(name: "HelveticaNeue-Light", size: CGFloat(17.0))!
, NSForegroundColorAttributeName : UIColor(red: 232 / 255.0, green: 117 / 255.0, blue: 40 / 255.0, alpha: 1.0)], range: NSRange(location:12,length:8)) // What ever range you want to give
yourLabel.attributedText = myMutableString
Hope this helps anybody!
Chris' answer was a great help to me, so I used his approach and turned into a func that I can reuse. This let's me assign a color to a substring while giving the rest of the string another color.
static func createAttributedString(fullString: String, fullStringColor: UIColor, subString: String, subStringColor: UIColor) -> NSMutableAttributedString
{
let range = (fullString as NSString).rangeOfString(subString)
let attributedString = NSMutableAttributedString(string:fullString)
attributedString.addAttribute(NSForegroundColorAttributeName, value: fullStringColor, range: NSRange(location: 0, length: fullString.characters.count))
attributedString.addAttribute(NSForegroundColorAttributeName, value: subStringColor, range: range)
return attributedString
}
Swift 4.1
NSAttributedStringKey.foregroundColor
for example if you want to change font in NavBar:
self.navigationController?.navigationBar.titleTextAttributes = [ NSAttributedStringKey.font: UIFont.systemFont(ofSize: 22), NSAttributedStringKey.foregroundColor: UIColor.white]
You can use this extension
I test it over
swift 4.2
import Foundation
import UIKit
extension NSMutableAttributedString {
convenience init (fullString: String, fullStringColor: UIColor, subString: String, subStringColor: UIColor) {
let rangeOfSubString = (fullString as NSString).range(of: subString)
let rangeOfFullString = NSRange(location: 0, length: fullString.count)//fullString.range(of: fullString)
let attributedString = NSMutableAttributedString(string:fullString)
attributedString.addAttribute(NSAttributedStringKey.foregroundColor, value: fullStringColor, range: rangeOfFullString)
attributedString.addAttribute(NSAttributedStringKey.foregroundColor, value: subStringColor, range: rangeOfSubString)
self.init(attributedString: attributedString)
}
}
Swift 2.2
var myMutableString = NSMutableAttributedString()
myMutableString = NSMutableAttributedString(string: "1234567890", attributes: [NSFontAttributeName:UIFont(name: kDefaultFontName, size: 14.0)!])
myMutableString.addAttribute(NSForegroundColorAttributeName, value: UIColor(red: 0.0/255.0, green: 125.0/255.0, blue: 179.0/255.0, alpha: 1.0), range: NSRange(location:0,length:5))
self.lblPhone.attributedText = myMutableString
Easiest way to do label with different style such as color, font etc. is use property "Attributed" in Attributes Inspector. Just choose part of text and change it like you want
Based on the answers before I created a string extension
extension String {
func highlightWordsIn(highlightedWords: String, attributes: [[NSAttributedStringKey: Any]]) -> NSMutableAttributedString {
let range = (self as NSString).range(of: highlightedWords)
let result = NSMutableAttributedString(string: self)
for attribute in attributes {
result.addAttributes(attribute, range: range)
}
return result
}
}
You can pass the attributes for the text to the method
Call like this
let attributes = [[NSAttributedStringKey.foregroundColor:UIColor.red], [NSAttributedStringKey.font: UIFont.boldSystemFont(ofSize: 17)]]
myLabel.attributedText = "This is a text".highlightWordsIn(highlightedWords: "is a text", attributes: attributes)
Swift 4.1
I have changed from this
In Swift 3
let str = "Welcome "
let welcomeAttribute = [ NSForegroundColorAttributeName: UIColor.blue()]
let welcomeAttrString = NSMutableAttributedString(string: str, attributes: welcomeAttribute)
And this in Swift 4.0
let str = "Welcome "
let welcomeAttribute = [ NSAttributedStringKey.foregroundColor: UIColor.blue()]
let welcomeAttrString = NSMutableAttributedString(string: str, attributes: welcomeAttribute)
to Swift 4.1
let str = "Welcome "
let welcomeAttribute = [ NSAttributedStringKey(rawValue: NSForegroundColorAttributeName): UIColor.blue()]
let welcomeAttrString = NSMutableAttributedString(string: str, attributes: welcomeAttribute)
Works fine
swift 4.2
let textString = "Hello world"
let range = (textString as NSString).range(of: "world")
let attributedString = NSMutableAttributedString(string: textString)
attributedString.addAttribute(NSAttributedStringKey.foregroundColor, value: UIColor.red, range: range)
self.textUIlable.attributedText = attributedString
This might be work for you
let main_string = " User not found,Want to review ? Click here"
let string_to_color = "Click here"
let range = (main_string as NSString).range(of: string_to_color)
let attribute = NSMutableAttributedString.init(string: main_string)
attribute.addAttribute(NSAttributedStringKey.foregroundColor, value: UIColor.blue , range: range)
lblClickHere.attributedText = attribute
With this simple function you can assign the text and highlight the chosen word.
You can also change the UITextView to UILabel, etc.
func highlightBoldWordAtLabel(textViewTotransform: UITextView, completeText: String, wordToBold: String){
textViewToTransform.text = completeText
let range = (completeText as NSString).range(of: wordToBold)
let attribute = NSMutableAttributedString.init(string: completeText)
attribute.addAttribute(NSAttributedString.Key.font, value: UIFont.boldSystemFont(ofSize: 16), range: range)
attribute.addAttribute(NSAttributedString.Key.foregroundColor, value: UIColor.black , range: range)
textViewToTransform.attributedText = attribute
}
For everyone who are looking for "Applying specific color to multiple words in text", we can do it using NSRegularExpression
func highlight(matchingText: String, in text: String) {
let attributedString = NSMutableAttributedString(string: text)
if let regularExpression = try? NSRegularExpression(pattern: "\(matchingText)", options: .caseInsensitive) {
let matchedResults = regularExpression.matches(in: text, options: [], range: NSRange(location: 0, length: attributedString.length))
for matched in matchedResults {
attributedString.addAttributes([NSAttributedStringKey.backgroundColor : UIColor.yellow], range: matched.range)
}
yourLabel.attributedText = attributedString
}
}
Reference link : https://gist.github.com/aquajach/4d9398b95a748fd37e88
You can use as simple extension
extension String{
func attributedString(subStr: String) -> NSMutableAttributedString{
let range = (self as NSString).range(of: subStr)
let attributedString = NSMutableAttributedString(string:self)
attributedString.addAttribute(NSAttributedString.Key.foregroundColor, value: UIColor.red , range: range)
return attributedString
}
}
myLable.attributedText = fullStr.attributedString(subStr: strToChange)
This extension works well when configuring the text of a label with an already set default color.
public extension String {
func setColor(_ color: UIColor, ofSubstring substring: String) -> NSMutableAttributedString {
let range = (self as NSString).range(of: substring)
let attributedString = NSMutableAttributedString(string: self)
attributedString.addAttribute(NSAttributedString.Key.foregroundColor, value: color, range: range)
return attributedString
}
}
For example
let text = "Hello World!"
let attributedText = text.setColor(.blue, ofSubstring: "World")
let myLabel = UILabel()
myLabel.textColor = .white
myLabel.attributedText = attributedText
Super easy way to do this.
let text = "This is a colorful attributed string"
let attributedText =
NSMutableAttributedString.getAttributedString(fromString: text)
attributedText.apply(color: .red, subString: "This")
//Apply yellow color on range
attributedText.apply(color: .yellow, onRange: NSMakeRange(5, 4))
For more detail click here:
https://github.com/iOSTechHub/AttributedString
To change color of the font colour, first select attributed instead of plain like in the image below
You then need to select the text in the attributed field and then select the color button on the right-hand side of the alignments. This will change the color.
You can use this method. I implemented this method in my common utility class to access globally.
func attributedString(with highlightString: String, normalString: String, highlightColor: UIColor) -> NSMutableAttributedString {
let attributes = [NSAttributedString.Key.foregroundColor: highlightColor]
let attributedString = NSMutableAttributedString(string: highlightString, attributes: attributes)
attributedString.append(NSAttributedString(string: normalString))
return attributedString
}
If you are using Swift 3x and UITextView, maybe the NSForegroundColorAttributeName won't work (it didn't work for me no matter what approach I tried).
So, after some digging around I found a solution.
//Get the textView somehow
let textView = UITextView()
//Set the attributed string with links to it
textView.attributedString = attributedString
//Set the tint color. It will apply to the link only
textView.tintColor = UIColor.red
You need to change textview parameters, not parameters of attributed string
textView.linkTextAttributes = [
NSAttributedString.Key.foregroundColor: UIColor.red,
NSAttributedString.Key.underlineColor: UIColor.red,
NSAttributedString.Key.underlineStyle: NSUnderlineStyle.single.rawValue
]
Please check cocoapod Prestyler:
Prestyler.defineRule("$", UIColor.orange)
label.attributedText = "This $text$ is orange".prestyled()
extension String{
// to make text field mandatory * looks
mutating func markAsMandatoryField()-> NSAttributedString{
let main_string = self
let string_to_color = "*"
let range = (main_string as NSString).range(of: string_to_color)
print("The rang = \(range)")
let attribute = NSMutableAttributedString.init(string: main_string)
attribute.addAttribute(NSAttributedString.Key.foregroundColor, value: UIColor.rgbColor(red: 255.0, green: 0.0, blue: 23.0) , range: range)
return attribute
}
}
use
EmailLbl.attributedText = EmailLbl.text!.markAsMandatoryField()
I have a UITableView and i would like to display the text of each row using different colors within the same line.
I've tried this code, trying to translate from Obj-C but i cannot have it working
let object = self.fetchedResultsController.objectAtIndexPath(indexPath) as NSManagedObject
var attrString: NSMutableAttributedString = NSMutableAttributedString(string: object.valueForKey("example1")!.description)
attrString.addAttribute(NSForegroundColorAttributeName, value: UIColor.redColor(), range: NSMakeRange(0, attrString.length))
var stringToCell:String = String(format: "%# %#", attrString, object.valueForKey("example2")!.description)
cell.textLabel?.text = stringToCell
The output of all this is
where the number 34 correspond to object.valueForKey("example1")!.description, so the problem is that the number is not red, and the second part (object.valueForKey("example2")!.description) is replaced by {.
If I leave this piece of code regarding NSAttributedString the row text is displayed correctly.
I think the problem might lie in assigning to cell.textLabel?.text instead of cell.textLabel?.attributedText. Perhaps something like this:
let object = self.fetchedResultsController.objectAtIndexPath(indexPath) as NSManagedObject
var attrString: NSMutableAttributedString = NSMutableAttributedString(string: object.valueForKey("example1")!.description)
attrString.addAttribute(NSForegroundColorAttributeName, value: UIColor.redColor(), range: NSMakeRange(0, attrString.length))
var descString: NSMutableAttributedString = NSMutableAttributedString(string: String(format: " %#", object.valueForKey("example2")!.description))
descString.addAttribute(NSForegroundColorAttributeName, value: UIColor.blackColor(), range: NSMakeRange(0, descString.length))
attrString.appendAttributedString(descString);
cell.textLabel?.attributedText = attrString
Wasn't sure if you wanted the second part of the string to be red or another color so I made it black.
If you can, avoid using NSMutableAttributedString and just pass in the attributes with the constructor:
private func PullToRefreshAttributedStringWithColor(color:UIColor) -> NSAttributedString {
return NSAttributedString(string: "Pull to Refresh", attributes: [
NSForegroundColorAttributeName:color
])
}
Here is a example of attribute text Swift 3
let mainText = "Here is a example of attributedString"
let attributeText = "attributedString"
let range = (mainText as NSString).range(of: attributeText)
let attributedString = NSMutableAttributedString(string:mainText)
attributedString.addAttribute(NSAttributedStringKey.foregroundColor, value: UIColor.red, range: range)
attribute.addAttribute(NSFontAttributeName, value: UIFont.systemFont(ofSize: 14) , range: range)
lblTitle.attributedText = attributedString