How to center vertically attributed text (custom placeholder font) in UITextField? - ios

I am using attributed text property to set custom placeholder font in UITExtfield. But my placeholder text is not vertically centered.Here is preview
let font = UIFont(name: Font.myFont.name, size: 15)!
let attributes = [
NSForegroundColorAttributeName: UIColor.cadetGrey,
NSFontAttributeName: font
]
exampleTextField.attributedPlaceholder = NSAttributedString(string: "Example Placeholder",
attributes: attributes)
I tried to add
let centeredParagraphStyle = NSMutableParagraphStyle()
centeredParagraphStyle.alignment = .center
to attribute still no luck. I also tried to use SizeToFit() on my UITextBox but no luck at all

This worked for me in Swift 5:
let unitText = NSAttributedString(string: "\(unit)", attributes: [NSAttributedString.Key.foregroundColor: MyColors.doveGray, NSAttributedString.Key.baselineOffset:2])

Try like this :
let centeredParagraphStyle = NSMutableParagraphStyle()
centeredParagraphStyle.alignment = .center
let attributes: [String : Any] = [NSParagraphStyleAttributeName: centeredParagraphStyle]

This is will set both placeholder and text input by user in center.
exampleTextField.textAlignment = .center
To center both vertically and horizontally.
exampleTextField.contentVerticalAlignment = UIControlContentVerticalAlignment.center
exampleTextField.textAlignment = .center
OR
This is will only set placeholder in center whereas the text input by user will remain at it's default position i.e left align
let font = UIFont(name: Font.myFont.name, size: 15)!
let centeredParagraphStyle = NSMutableParagraphStyle()
centeredParagraphStyle.alignment = .center
// add attribute of NSMutableParagraphStyle
let attributes = [
NSForegroundColorAttributeName: UIColor.gray,
NSFontAttributeName: font,
NSParagraphStyleAttributeName: centeredParagraphStyle
]
exampleTextField.attributedPlaceholder = NSAttributedString(string: "Example Placeholder",
attributes: attributes)

Related

Make half of the TextView's text color Different than other 50% of the text SWIFT

I've got a large text in my UITextView and I want to make the 50% of the text's color red and the other 50% green . I've added NSMutableAttributedString in the TextView but it works's for the full range of the text . How to divide the textView's text into two sections and color them into red and green ?
let strNumber: NSString = self.text as NSString // TextView Text
let range = (strNumber).range(of: strNumber as String)
let attribute = NSMutableAttributedString.init(string: strNumber as String)
attribute.addAttributes([NSAttributedString.Key.font : UIFont.systemFont(ofSize: 14) , NSAttributedString.Key.foregroundColor : UIColor.red], range: range)
self.attributedText = attribute
It seems you have an extension to UITextView. The following extension function will make the existing attributed text of a text view be half red and half green. All other existing attributes, if any, will remain.
extension UITextView {
func makeHalfRedGreen() {
if let text = self.text {
let half = text.count / 2
let halfIndex = text.index(text.startIndex, offsetBy: half)
let firstRange = NSRange(..<halfIndex, in: text)
let secondRange = NSRange(halfIndex..., in: text)
let attrTxt = NSMutableAttributedString(attributedString: attributedText)
attrTxt.addAttribute(.foregroundColor, value: UIColor.red, range: firstRange)
attrTxt.addAttribute(.foregroundColor, value: UIColor.green, range: secondRange)
attributedText = attrTxt
}
}
}
Try to use function like below
text_lbl.attributedText = self.decorateText(txt1: "Red Color", txt2: “Blue Color”)
func decorateText(txt1:String, txt2:String)->NSAttributedString{
let textAttributesOne = [NSAttributedStringKey.foregroundColor: UIColor.red, NSAttributedStringKey.font: UIFont(name: "Poppins-Regular", size: 12.0)!] as [NSAttributedStringKey : Any]
let textAttributesTwo = [NSAttributedStringKey.foregroundColor: UIColor.blue, NSAttributedStringKey.font: UIFont(name: "Poppins-SemiBold", size: 14.0)!] as [NSAttributedStringKey : Any]
let textPartOne = NSMutableAttributedString(string: txt1, attributes: textAttributesOne)
let textPartTwo = NSMutableAttributedString(string: txt2, attributes: textAttributesTwo)
let textCombination = NSMutableAttributedString()
textCombination.append(textPartOne)
textCombination.append(textPartTwo)
return textCombination
}

How to color potion of an UILabel in swift 3

I want to achieve something like this without using 2 labels.
How can I create an UILabel like this.Please help me.
You can use the NSBackgroundColorAttributeName property of the NSMutableAttributedString to achieve the above result
var attributedString = NSMutableAttributedString(string:yourString)attributedString.addAttribute(NSBackgroundColorAttributeName, value: .redColor() , range: range)
yourLabel.attributedText = attributedString
For achieving this output we use NSAttribute class
Try below code
//This is for setting border of UILabel
let labelColor = UIColor(colorLiteralRed: 255.0/255.0, green: 115.0/255.0, blue: 116.0/255.0, alpha: 1.0)
lblNoOfDays.layer.masksToBounds = true
lblNoOfDays.layer.borderWidth = 1.0
lblNoOfDays.layer.borderColor = labelColor.cgColor
//This is value we display
let strValueTitle = "No of Days"
let strValue = "04"
//Attribute dictionary we use
//NSFontAttributeName:- sets font and it's size
//NSForegroundColorAttributeName:- sets text colour
//NSBackgroundColorAttributeName:- sets background color
let attributeTitle = [NSFontAttributeName: UIFont.systemFont(ofSize: 11.0), NSForegroundColorAttributeName: labelColor, NSBackgroundColorAttributeName: UIColor.clear]
let attributeVal = [NSFontAttributeName: UIFont.systemFont(ofSize: 12.0), NSForegroundColorAttributeName: UIColor.white, NSBackgroundColorAttributeName: labelColor]
//Implement attributes to string
let attributTitleString = NSMutableAttributedString(string: strValueTitle, attributes: attributeTitle)
let attributeValue = NSAttributedString(string: strValue, attributes: attributeVal)
//Append attributed string
attributTitleString.append(attributeValue)
//Assign attributed string to label
lblNoOfDays.attributedText = attributTitleString
lblNoOfDays.sizeToFit()
You need to set padding in UILabel for getting desired output.

How to change UITextfield placeholder color and fontsize using swift 2.0?

How to change UITextfield placeholder & fontsize in SWIFT 2.0?
#1. set Placeholder textfield color Programmatically
var myMutableStringTitle = NSMutableAttributedString()
let Name = "Enter Title" // PlaceHolderText
myMutableStringTitle = NSMutableAttributedString(string:Name, attributes: [NSFontAttributeName:UIFont(name: "Georgia", size: 20.0)!]) // Font
myMutableStringTitle.addAttribute(NSForegroundColorAttributeName, value: UIColor.redColor(), range:NSRange(location:0,length:Name.characters.count)) // Color
txtTitle.attributedPlaceholder = myMutableStringTitle
OR
txtTitle.attributedPlaceholder = NSAttributedString(string:"Enter Title", attributes: [NSForegroundColorAttributeName: yellowColor])
Note : Name is your placeholder of textField.
PlaceHolder TextFiled :
-------------------------------- OR -------------------------------------
#2. set Placeholder textfield color at runtime attribute
Set textfield placeHolder text Enter Title
Click on identity inspector of textfield property.
User Define Runtime Attributes, add color attributes
Key Path : _placeholderLabel.textColor
Type : Color
value : Your Color or RGB value
PlaceHolder TextFiled :
Updated for Swift 3
If you want to change the UITextField Placeholder color for Swift 3, use the following lines of code:
let yourTextFieldName = UITextField(frame: CGRect(x: 0, y: 0, width: 180, height: 21))
yourTextFieldName.attributedPlaceholder = NSAttributedString(string: "placeholder text", attributes: [NSForegroundColorAttributeName: UIColor.white])
Updated for Swift 5
For swift 5.0 use NSAttributedString.Key.foregroundColor instead of NSForegroundColorAttributeName
So, do it like so
textField.attributedPlaceholder = NSAttributedString(string: "placeholder text", attributes: [NSAttributedString.Key.foregroundColor: UIColor.white])
For swift 4 instead of
NSForegroundColorAttributeName
use
NSAttributedStringKey.foregroundColor
You can try with this sample code
let textFld = UITextField();
textFld.frame = CGRectMake(0,0, 200, 30)
textFld.center = self.view.center;
textFld.attributedPlaceholder = NSAttributedString(string:"Test Data for place holder", attributes:[NSForegroundColorAttributeName: UIColor.blueColor(),NSFontAttributeName :UIFont(name: "Arial", size: 10)!])
self.view.addSubview(textFld)
Placeholder for textfield Objective C
NSString* str = #"Placeholder text...";
NSRange range1 = [str rangeOfString:#"Placeholder text..."];
NSMutableAttributedString *attributedText = [[NSMutableAttributedString alloc] initWithString:str];
[attributedText setAttributes:#{
NSFontAttributeName:[UIFont fontWithName:customFont_NotoSans_Regular size:13.0]
}
range:range1];
[attributedText addAttribute:NSForegroundColorAttributeName value:[UIColor whiteColor] range:range1];
txtFld.font = [UIFont fontWithName:customFont_NotoSans_Regular size:13.0];
txtFld.keyboardType = UIKeyboardTypeDefault;
txtFld.attributedPlaceholder = attributedText;
It's easy to do with a subclass of UITextField.
Add placeholderColor property to easily set the color, and then observer changing of .placeholder to apply the color to it (with use of .attributedPlaceholder property)
var placeholderColor: UIColor = .lightGray
override var placeholder: String? {
didSet {
let attributes = [ NSAttributedString.Key.foregroundColor: placeholderColor ]
attributedPlaceholder = NSAttributedString(string: placeholder ?? "", attributes: attributes)
}
}
You do need to set the placeholder text programatically for the color to apply.
set Textfield placeholder
let leftBarButtonItem = UIBarButtonItem.init(image: UIImage(named:"ic_nav-bar_back.png"), landscapeImagePhone: nil, style: .plain, target: viewController, action: #selector(viewController.buttonClick(_:)))
leftBarButtonItem.imageInsets = UIEdgeInsets(top: 0, left: -15, bottom: 0, right: 0)
leftBarButtonItem.tintColor = UIColor(hex: 0xED6E19)
viewController.navigationItem.setLeftBarButton(leftBarButtonItem, animated: true)
A simple solution is override placeholder property in an UITextField extension. It will update color of placeholder whole project. You don't need to update your code in many places.
extension UITextField {
var placeholder: String? {
get {
attributedPlaceholder?.string
}
set {
guard let newValue = newValue else {
attributedPlaceholder = nil
return
}
let attributes: [NSAttributedString.Key: Any] = [.foregroundColor: Color.textFieldPlaceholder.color]
let attributedText = NSAttributedString(string: newValue, attributes: attributes)
attributedPlaceholder = attributedText
}
}
}
open your identity inspector by selecting text field and then put " placeholderLabel.textColor " in key path by pressing + button .
Give the type " Color " and in value select desired RGB color.
Swift 5
textfiled.attributedPlaceholder = NSAttributedString(string:NSLocalizedString("Input Group Name", comment: "Input Group Name"), attributes: [NSAttributedString.Key.foregroundColor: yourColor.withAlphaComponent(0.5)])

hyperlink not highlighted in UILabel with NSAttributedText in iOS

I am displaying a label with an attributed text. The label contains some hyper links.
I understand that these are only clickable in a textView however I thought that they would appear blue and underlined in a UILabel which has NSAttributedText.
In my case the link is not any different than the other text (not blue or underlined). Is there any property of the UILabel I need to change to make the link appear blue inside a UILabel?
let style = NSMutableParagraphStyle()
style.lineBreakMode = NSLineBreakMode.ByWordWrapping
let attributes = [NSFontAttributeName: self.defaultFont(), NSParagraphStyleAttributeName: style]
let attributedString = NSAttributedString(string: "www.somelink.com", attributes: attributes)
label.attributedText = attributedString
You need to add NSLinkAttributeName attribute to your NSAttributedString like this:
attributedString.addAttribute(NSLinkAttributeName, value: "www.somelink.com", range: attributedString.string.rangeOfString("www.somelink.com"))
Please check the range for your needs.
You need NSLinkAttributeName. Above answer should work.
let style = NSMutableParagraphStyle()
style.lineBreakMode = NSLineBreakMode.ByWordWrapping
let attributes = [NSFontAttributeName: self.defaultFont(), NSParagraphStyleAttributeName: style]
let attributedString.addAttribute(NSLinkAttributeName, value: "www.somelink.com", range: attributedString.string.rangeOfString("www.somelink.com"))
label.attributedText = attributedString

How can I set the attributed text while having no placeholder text?

Code that worked in Xcode 6.2 no longer works and I'm having trouble figuring out how to fix it. String attributes are now ignored unless I set default text. Here's what I've got right now:
let font = UIFont(name: "Arial-BoldMT", size: 42.0)!
let textStyle = NSMutableParagraphStyle.defaultParagraphStyle().mutableCopy() as! NSMutableParagraphStyle
textStyle.alignment = NSTextAlignment.Center
let textColor = UIColor.whiteColor()
var shadow = NSShadow()
shadow.shadowColor = UIColor.blackColor()
shadow.shadowOffset = CGSizeMake(2.0,2.0)
var attr = [String:NSObject]()
attr = [
NSFontAttributeName: font,
NSForegroundColorAttributeName: textColor,
NSParagraphStyleAttributeName: textStyle,
NSShadowAttributeName: shadow
]
let placeholderText = NSAttributedString(string: "", attributes: attr)
textView.attributedText = placeholderText
If you change the placeHolderText to NSAttributedString(string: " ", attributes: attr) you can then change the UITextView's text by changing its text property and the new text will have all the same attributes.
I hope that answers your question.

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