I have search bar and table view. I can filter table view items based on search bar text. But I have to change found letter's color. For example if I write HE to search bar, I want to show HELLO in table view but the color of HE should different than LLO.
Thanks for ideas.
use NSMutableAttributedString for your concept, Here I tell the logic customize yourself where you need (must call in inside the cellForRow)
lblcheck.text = "hello" // is the original text
lblcheck.textColor = UIColor.red // initally set the whole color for your text
//Create mutable string from original one
let attString = NSMutableAttributedString(string: lblcheck.text!)
//Fing range of the string you want to change colour
//If you need to change colour in more that one place just repeat it
let range: NSRange = (lblcheck.text! as NSString).range(of: "he", options: .caseInsensitive) //he in here use searchBar.text
attString.addAttribute(NSForegroundColorAttributeName, value: UIColor.white, range: range) // here set selection color what ever you typed
//Add it to the label - notice its not text property but it's attributeText
lblcheck.attributedText = attString
Text color change can be done by using NSAttributedString. When you show your search results, in your cellForRow delegate method, get search string and replace the word in your textView with NSAttributedString version. You can change color for the specific string in your NSAttributedString.
This is the general idea without seeing any code.
I have a convenience extension like this:
extension NSMutableAttributedString {
func append(string: String, attributes: [String: Any]) {
let attributed = NSMutableAttributedString(string: string)
let range = NSRange(location: 0, length: string.utf16.count)
for (attribute, value) in attributes {
attributed.addAttribute(attribute, value: value, range: range)
}
append(attributed)
}
}
I'm styling text in my UILabel thusly:
let normalAttributes = [NSForegroundColorAttributeName: darkGray]
let lightAttributes = [NSForegroundColorAttributeName: lightGray]
let text = NSMutableAttributableString()
text.append("Part 1", attributes: normalAttributes)
text.append("Part 2", attributes: lightAttributes)
All of this within a custom UITableViewCell class. What's happening is that the text is rendering with the base color in the NIB file, rather than the custom foreground color as per my attributed string - until I do something (like scroll around) that causes cell reuse, after which suddenly the colors render correctly.
I can't seem to find anything wrong with the lifecycle of the object, and there's no other place that's messing with this label. The label, fwiw, is an IBOutlet, so I'm not creating a new one each time or anything strange.
Turns out it's the same problem as:
Attributed string in tableviewcell not showing bold text until the cell is dequeued and reloaded
So it's solved by setting the font & color to nil on the label before setting the attributeText. Annoying, but easy enough to do that work-around.
As #Kiril Savino suggested. Setting up Font & Color of UILabel to nil is do easy work-around to get it done.
But one more thing I noticed today is Default Font used from Storyboard or XIB.
It should be System Font from Storyboard or XIB to make this work.
If you have used other Custom Font, then it won't work.
So, make sure Default Font of UILabel should System Font.
Thank you.
I have a UILabel that should display text on multiple lines in case that it's too long to stay on a single line. This how I set its parameters in interface builder:
But even by doing so, the text still gets truncated:
This is how I set the text at runtime:
let text = "left button pressed 5 seconds ago, you may want to press another button now"
let attributedText = NSMutableAttributedString(string: text)
attributedText.addAttribute(NSFontAttributeName, value: UIFont.boldSystemFontOfSize(statusLabel.font.pointSize), range: (text as NSString).rangeOfString("left"))
let paragraphStyle = NSMutableParagraphStyle()
paragraphStyle.lineBreakMode = .ByWordWrapping
attributedText.addAttribute(NSParagraphStyleAttributeName, value: paragraphStyle, range: NSMakeRange(0, attributedText.length))
statusLabel.attributedText = attributedText
Like you see I even tried to add a paragraph style attribute to force the text to stay on multiple lines, but it doesn't work.
Check that you're setting the auto layout constraints so you have the top, leading and trailing spaces defined, but don't hookup a vertical height, the label will adjust itself based on the content.
Edit:
How can I underline partial text of UILabel using only storyboard? I am able to do this in code and I'm able to underline the entire text of a label, but not just one or two words in the string.
select the UILabel and go to Attribute Inspector section.
Change the text value from plain to Attributed .
Select the particular part of text which you want to Underline .
Note: If u want full text to be Underline select full text.
Now right click and change the font to Underline.
It will Underline the text
Steps:-
Go to TextEdit and create your UILabel text with underline.
Change UILabel text to Attributed (Attributed Selector).
Copy Underlined text and assign to UILabel.
Through code:
func underLineText(text: String)-> NSMutableAttributedString
let attributedText = NSMutableAttributedString(string: text)
attributedText.addAttribute(NSMutableAttributedString.Key.underlineStyle, value: NSUnderlineStyle.single.rawValue, range: NSRange(location: 0, length: attributedText.length))
return attributedText
}
//calling of func
yourLbl.attributedText = underLineText(text:yourLbl.text!)
List of other underline Types
NSMutableAttributedString.Key.underlineStyle = NSUnderlineStyle.single.rawValue
NSMutableAttributedString.Key.underlineStyle = NSUnderlineStyle.thick.rawValue
NSMutableAttributedString.Key.underlineStyle = NSUnderlineStyle.double.rawValue
NSMutableAttributedString.Key.underlineStyle = NSUnderlineStyle.patternDot.rawValue
NSMutableAttributedString.Key.underlineStyle = NSUnderlineStyle.patternDash.rawValue
NSMutableAttributedString.Key.underlineStyle = NSUnderlineStyle.patternDashDot.rawValue
NSMutableAttributedString.Key.underlineStyle = NSUnderlineStyle.patternDashDotDot.rawValue
NSMutableAttributedString.Key.underlineStyle = NSUnderlineStyle.byWord.rawValue
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'm not sure if it's a bug of Xcode 6 or iOS 8 SDK, or the way to use custom fonts is changed in Xcode 6 / iOS 8?
The simplest answer that worked for is to drag the fonts into FontBook. If the fonts are in your project but not in your computer's FontBook, IB sometimes has trouble finding it. Weird, but has worked for me on several occasions.
The fix for me was to use an IBDesignable class:
import UIKit
#IBDesignable class TIFAttributedLabel: UILabel {
#IBInspectable var fontSize: CGFloat = 13.0
#IBInspectable var fontFamily: String = "DIN Light"
override func awakeFromNib() {
var attrString = NSMutableAttributedString(attributedString: self.attributedText)
attrString.addAttribute(NSFontAttributeName, value: UIFont(name: self.fontFamily, size: self.fontSize)!, range: NSMakeRange(0, attrString.length))
self.attributedText = attrString
}
}
Giving you this in the Interface Builder:
You can set up your attributedstring just as you normal do, but you'll have to set your fontsize and fontfamily once again in the new available properties.
As the Interface Builder is working with the custom font by default, this results in a what you see is what you get, which I prefer when building apps.
Note
The reason I'm using this instead of just the plain version is that I'm setting properties on the attributed label like the linespacing, which are not available when using the plain style.
You can add custom fonts to font book.
Step1: Click on manage fonts. It opens the font book.
Step2: Click on plus and add your fonts.
Next time when you click on font with attributed text newly added font also will show in the list. But make sure your custom font added in info.plist and bundle resources.
My solution is a bit of a work around. The real solution is for apple to fix Interface Builder.
With it you can mark all the bold and italic text in interface builder using a system font, then at runtime render your custom font. May not be optimal in all cases.
NSMutableAttributedString* ApplyCustomFont(NSAttributedString *attributedText,
UIFont* boldFont,
UIFont* italicFont,
UIFont* boldItalicFont,
UIFont* regularFont)
{
NSMutableAttributedString *attrib = [[NSMutableAttributedString alloc] initWithAttributedString:attributedText];
[attrib beginEditing];
[attrib enumerateAttribute:NSFontAttributeName inRange:NSMakeRange(0, attrib.length) options:0
usingBlock:^(id value, NSRange range, BOOL *stop)
{
if (value)
{
UIFont *oldFont = (UIFont *)value;
NSLog(#"%#",oldFont.fontName);
[attrib removeAttribute:NSFontAttributeName range:range];
if([oldFont.fontName rangeOfString:#"BoldItalic"].location != NSNotFound && boldItalicFont != nil)
[attrib addAttribute:NSFontAttributeName value:boldItalicFont range:range];
else if([oldFont.fontName rangeOfString:#"Italic"].location != NSNotFound && italicFont != nil)
[attrib addAttribute:NSFontAttributeName value:italicFont range:range];
else if([oldFont.fontName rangeOfString:#"Bold"].location != NSNotFound && boldFont != nil)
[attrib addAttribute:NSFontAttributeName value:boldFont range:range];
else if(regularFont != nil)
[attrib addAttribute:NSFontAttributeName value:regularFont range:range];
}
}];
[attrib endEditing];
return attrib;
}
Inspired by this post
Thanks to this thread, I've come to this solution:
private let fontMapping = [
"HelveticaNeue-Medium": "ITCAvantGardePro-Md",
"HelveticaNeue": "ITCAvantGardePro-Bk",
"HelveticaNeue-Bold": "ITCAvantGardePro-Demi",
]
func switchFontFamily(string: NSAttributedString) -> NSAttributedString {
var result = NSMutableAttributedString(attributedString: string)
string.enumerateAttribute(NSFontAttributeName, inRange: NSRange(location: 0, length: string.length), options: nil) { (font, range, _) in
if let font = font as? UIFont {
result.removeAttribute(NSFontAttributeName, range: range)
result.addAttribute(NSFontAttributeName, value: UIFont(name: fontMapping[font.fontName]!, size: font.pointSize)!, range: range)
}
}
return result
}
I have struggled with this bug: UILabel displays correctly in IB with custom font but does not display correctly on device or simulator (font is included in the project and is used in plain UILabels).
Finally found Attributed String Creator on (Mac) App Store. Generates code to be placed in your app in the appropriate place. Fantastic.
I am not the creator, just a happy user.
Met the same problem: the attribute font set for TextView in storyboard didn't work in run time with XCode 6.1 & iOS 8 SDK.
This is how I solved this issue, might be a workaround for you:
open the attribute inspector of your textview, change text to
"Plain"
click on the cross to delete the "wC hR"(red below)
change text to "Attributed", and then you can set the font and size
for your text.
run to check if it works
Try this it will work
In my case when i try to set "Silversky Technology" as Attributed text for label from interface builder its not show when i run in simulator but its show in interface builder. So i used one trick i made Silversky font with 1 pixel bigger then Technology text.
Attribute text have issue with same size of font so change size of 1 word this thing work with me.
May be this is xcode bug but this trick work for me.
Met the same problem: the attribute font for UILabel in storyboard didn't work in run time. Using this UIFont+IBCustomFonts.m works for me
https://github.com/deni2s/IBCustomFonts
The same problem.
Solved: Just check Selectable in TextView. Without this i have standard System font.
Double click and install the font to the system. It will work (Xcode 8.2)
#Hamidptb solution works, make sure to get the correct name of the font (once you've added it to Font Book)
Open the Font Book application, navigate to your font then press Command+I. The PostScript name is the font name you want to use here:
UILabel.appearance().font = UIFont(name: "PostScriptName", size: 17)
I was trying to get tableView cells with text having multiple paragraphs. The attributed strings seemed to be a way to get extra space between the paragraphs (something a bit nicer looking than doing two line-feeds in the string). Came across this and other posts when I discovered that the IB settings didn't apply at run time when you wanted to put different text in the cell.
The main thing I came up with was adding an extension to String (using Swift) to
create an attributed string with certain characteristics. Example here uses the Marker Felt font, as it is easily distinguishable from Helvetica. The example also shows a little extra bit of spacing between paragraphs to make them more distinct from each other.
extension String {
func toMarkerFelt() -> NSAttributedString {
var style = NSMutableParagraphStyle()
style.paragraphSpacing = 5.0
let markerFontAttributes : [NSObject : AnyObject]? = [
NSFontAttributeName : UIFont(name: "Marker Felt", size: 14.0)!,
NSParagraphStyleAttributeName: style,
NSForegroundColorAttributeName : UIColor.blackColor()
]
let s = NSAttributedString(string: self, attributes: markerFontAttributes)
return s
}
}
Then, in my custom tableViewCell, you send it the text you want and it converts it to an attributed string on the UILabel.
// MarkerFeltCell.swift
class MarkerFeltCell: UITableViewCell {
#IBOutlet weak var myLabel: UILabel!
func configureCellWithString(inputString : String) {
myLabel.attributedText = inputString.toMarkerFelt()
}}
In the view controller with the tableView, you should register your cell in viewDidLoad() -- I used a nib, so something like:
let cellName = "MarkerFeltCell"
tableView.registerNib(UINib(nibName: cellName, bundle: nil), forCellReuseIdentifier: cellName)
To get the cell to figure out how tall it should be, make a prototype cell that is used to get size info, and is never added into the tableView. So, in your
view controller's variables:
var prototypeSummaryCell : MarkerFeltCell? = nil
Then in (probably override - depending on your view controller) heightForRowAtIndexPath:
override func tableView(tableView: UITableView, heightForRowAtIndexPath indexPath: NSIndexPath) -> CGFloat {
// ...
if xib == "MarkerFeltCell" {
if prototypeCell == nil {
prototypeCell = tableView.dequeueReusableCellWithIdentifier(xib) as? MarkerFeltCell
}
let width : CGFloat = tableView.bounds.width
let height : CGFloat = prototypeCell!.bounds.height
prototypeCell?.bounds = CGRect(x: 0, y: 0, width: width, height: height)
configureCell(prototypeCell!, atIndexPath: indexPath)
prototypeSummaryCell?.layoutIfNeeded()
let size = prototypeSummaryCell!.contentView.systemLayoutSizeFittingSize(UILayoutFittingCompressedSize)
let nextHeight : CGFloat = ceil(size.height + 1.0)
return nextHeight
} else { // ...
In the above code, the prototypeCell will be filled in the first time it is needed. The prototypeCell is then used to figure out the height for the cell after going through the autosizing process. You will need to round up the height with the ceil() function. I also added in some extra fudge factor.
The final code bit is how you configure the text for the cell. For this example, simply:
func configureCell(cell :UITableViewCell, atIndexPath indexPath: NSIndexPath) {
if let realCell = cell as? MarkerFeltCell {
realCell.configureCellWithString("Multi-line string.\nLine 2.\nLine 3.") // Use \n to separate lines
}
}
Also, here is a shot of the nib. Pinned the label to the edges of the cell (with margin desired), but used a "Greater Than or Equal" constraint, with a less than "Required" priority for the bottom constraint.
Set the label's font to Attributed. Actual IB font didn't matter.
The result in this case:
In case of attributed string you can add custom font in font list as -
Click on font icon this will display following dialog .In the following dialog you can add your own category or existing one for custom font.attributed font dialog
After it click on Manage Fonts it open the following dialog select category in you created or existing one . Click on + sign to add font in the category.
Manage font dialog
that's have a simple and quick solition and that's work in my case .
that solution is add a code line in didFinishLaunchingWithOptions func in AppDelegate.swift file :
for textViews :
UITextView.appearance().font = UIFont(name: "IranSans", size: 17)
for labels :
UILabel.appearance().font = UIFont(name: "IranSans", size: 17)
and for rest of UiView like this two ☝️
For anyone applying custom fonts to attributed string in code: Try setting it in viewDidLayoutSubviews. My mistake was doing it in viewDidLoad, it won't be applied there.