How do you set the line-spacing for a multi-line NSTextField programmatically with Swift or within the Interface Builder?
You can use NSAttributedString to modify this (Swift 4 example):
let paragraphStyle = NSMutableParagraphStyle()
paragraphStyle.lineSpacing = 10.0 // sets the space BETWEEN lines to 10 points
paragraphStyle.maximumLineHeight = 12.0 // sets the MAXIMUM height of the lines to 12 points
let text = "Your text"
let attributes = [.paragraphStyle: paragraphStyle]
textField.attributedStringValue = NSAttributedString(string: text, attributes: attributes)
Related
I'm trying to draw text using CoreText and CoreGraphics. The text draws and positions fine, however I can't seem to be able to change font size. Or font for that matter. I tried setting attributed text with CFAttributedString directly and I tried changing the CGContext font size setting. Here's my code
//... (create CGContext)
let textAttrs = [
kCTFontSizeAttribute as String : 18 as NSNumber
] as CFDictionary
let attrString = CFAttributedStringCreate(kCFAllocatorDefault,
NSString(string: "Hello, world!"),
textAttrs)
let textLine = CTLineCreateWithAttributedString(attrString!)
context.textPosition = CGPoint.zero
CTLineDraw(textLine, context.textPosition)
The problem is with the definition of attributes. First I had to define font and then apply font as attribute for string.
let fontAttributes = [
kCTFontFamilyNameAttribute : "Courier",
kCTFontStyleNameAttribute : "Bold",
kCTFontSizeAttribute : 18.0
] as NSDictionary
let descriptor = CTFontDescriptorCreateWithAttributes(fontAttributes)
let font = CTFontCreateWithFontDescriptor(descriptor, 0.0, nil)
let attributes = [kCTFontAttributeName : font] as CFDictionary
let attrString = CFAttributedStringCreate(kCFAllocatorDefault,
"Hello, world!" as NSString,
attributes)
How can I build something like this using attributed text? I tried adding line feed (\n), it didn't work, just displayed first line and cropped next two, removing \n will display two parts in single line:
let mutableAttributedString = NSMutableAttributedString()
let regularAttribute = [NSAttributedStringKey.font: UIFont(name: "Avenir-Light", size: 45.0), NSAttributedStringKey.foregroundColor: UIColor.yellow]
let boldAttribute = [NSAttributedStringKey.font: UIFont(name: "Avenir-Light", size: 25.0), NSAttributedStringKey.foregroundColor: UIColor.white]
let mutableAttributedString2 = NSMutableAttributedString()
let boldAttributedString = NSAttributedString(string: "person", attributes: boldAttribute)
let regularAttributedString = NSAttributedString(string: "\(self.requestCount)", attributes: regularAttribute)
mutableAttributedString2.append(boldAttributedString)
mutableAttributedString2.append(NSAttributedString(string: "\n"))
mutableAttributedString2.append(regularAttributedString)
self.btnStatsPeople.setAttributedTitle(mutableAttributedString2, for: .normal)
UILabel has one line by default.
This property controls the maximum number of lines to use in order to
fit the label’s text into its bounding rectangle. The default value
for this property is 1. To remove any maximum limit, and use as many
lines as needed, set the value of this property to 0.
UIButton creates default UILabel. So using 0 lines is a solution for your problem:
self.btnStatsPeople.titleLabel?.numberOfLines = 0
I'm creating attributed text using following attributes,
func attributedString(font: UIFont, contentColor: UIColor, alignment: NSTextAlignment) -> NSAttributedString {
let paragraphStyle = NSMutableParagraphStyle()
paragraphStyle.lineSpacing = 0.6
paragraphStyle.lineHeightMultiple = 0.8
paragraphStyle.alignment = alignment
paragraphStyle.lineBreakMode = .byWordWrapping
let lineSpacingAttribute: [NSAttributedStringKey: Any] = [NSAttributedStringKey.paragraphStyle: paragraphStyle, NSAttributedStringKey.font: font, NSAttributedStringKey.foregroundColor: contentColor]
let attributedString = NSAttributedString(string: self, attributes: lineSpacingAttribute)
return attributedString
}
I'm displaying this text on UILabel inside a custom tableViewCell. But, it is cutting a single word into two (cutting last letter of a word and displaying it on next line). I've set the numberOfLines to zero, and preferredMaxLayoutWidth for label. And I'm using a custom font.
This problem is happening on small screens only, iPhone SE and iPhone 5S simulators. But, on other simulators it is displaying correctly. Could you please help me to figure out what is wrong in this?
Thanks!
From Apple doc:
var preferredMaxLayoutWidth: CGFloat
This property affects the size of the label when layout constraints are applied to it. During layout, if the text extends beyond the width specified by this property, the additional text flows to one or more new lines, increasing the height of the label.
Depending on your text you can use the adjustsFontSizeToFitWidth property with the minimumScaleFactor property
I would like to change the Center Text Font and Font Size of a PieChart. I would like to make it as big as it's possible inside the center circle. Is there any on-board feature that helps me to change the font and font size or do i have to overwrite some Framework classes?
Didn't find any useful information in the documentation :(
That's my basic Chart Formating method:
func setAttributes(view: PieChartView){
view.legend.enabled = true
view.descriptionText = ""
view.userInteractionEnabled = false
view.drawSliceTextEnabled = false
view.animate(xAxisDuration: 2.0, yAxisDuration: 2.0, easingOption: ChartEasingOption.EaseInOutBack)
}
Regards!
Swift 3
You can use this code to change font in swift 3.
let myAttribute = [ NSFontAttributeName: UIFont(name: "IranSansMobile", size: 15.0)! ]
let myAttrString = NSAttributedString(string: "My String", attributes: myAttribute)
chart.centerAttributedText = myAttrString
The centered text in pie chart is called centerAttributedText, in PieChartView. It's NSAttributedText, so you can define many custom attributes.
You can simply change its font and size like below:
centerText = #"Whatever you like";
[centerText setAttributes:#{
NSFontAttributeName: [UIFont fontWithName:#"HelveticaNeue-Light" size:12.f],
NSParagraphStyleAttributeName: paragraphStyle
} range:NSMakeRange(0, centerText.length)];
pieChartView.centerAttributedText = centerText;
It's in Objective-C, but should be easy for you to translate into swift, since you only need to care about the attributes
swift 5
var pieChartView = PieChartView()
...
let myAttrString = NSAttributedString(string: "My String", attributes: nil)
pieChartView.centerAttributedText = myAttrString
Sorry for a basic question, but I'm not sure where to start. Is the following possible in Swift?
In a UITextView (Not a label, as in the possible duplicate), different bits of text having different formatting: for instance, a line of large text in the same UITextView as a line of small text. Here is a mockup of what I mean:
Is this possible in one UITextView?
You should have a look at NSAttributedString. Here's an example of how you could use it:
let largeTextString = "Here is some large, bold text"
let smallTextString = "Here is some smaller text"
let textString = "\n\(largeTextString)\n\n\(smallTextString)"
let attrText = NSMutableAttributedString(string: textString)
let largeFont = UIFont(name: "Arial-BoldMT", size: 50.0)!
let smallFont = UIFont(name: "Arial", size: 30.0)!
// Convert textString to NSString because attrText.addAttribute takes an NSRange.
let largeTextRange = (textString as NSString).range(of: largeTextString)
let smallTextRange = (textString as NSString).range(of: smallTextString)
attrText.addAttribute(NSFontAttributeName, value: largeFont, range: largeTextRange)
attrText.addAttribute(NSFontAttributeName, value: smallFont, range: smallTextRange)
textView.attributedText = attrText
The result: