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How to create multiple styles inside a TextView on iOS App?
To create multiple styles inside a textview we need to use attributed string. The text view in ios has a property attributedText which can be used to style the text inside a text view. We’ll see this with help of an example.
First, we’ll create an attribute
let attributeOne : [NSAttributedString.Key : Any] = [NSAttributedString.Key(rawValue: NSAttributedString.Key.font.rawValue) : UIFont.systemFont(ofSize: 16.0), NSAttributedString.Key(rawValue: NSAttributedString.Key.foregroundColor.rawValue) : UIColor.blue]
Then we’ll create an attributed string with the attribute we created
let string = NSAttributedString(string: "Text for first Attribute", attributes: attributeOne)
Similarly, we’ll create another string with different attribute. Then we’ll initialize the text of textView with the attributed string.
Now the whole code should look like as shown below.
let tx = UITextView() tx.isScrollEnabled = true tx.isUserInteractionEnabled = true tx.frame = CGRect(x: 10, y: 25, width: self.view.frame.width, height: 100) let attributeOne : [NSAttributedString.Key : Any] = [NSAttributedString.Key(rawValue: NSAttributedString.Key.font.rawValue) : UIFont.systemFont(ofSize: 16.0), NSAttributedString.Key(rawValue: NSAttributedString.Key.foregroundColor.rawValue) : UIColor.blue] let attributeTwo : [NSAttributedString.Key : Any] = [NSAttributedString.Key(rawValue: NSAttributedString.Key.font.rawValue) : UIFont.systemFont(ofSize: 20.0), NSAttributedString.Key(rawValue: NSAttributedString.Key.foregroundColor.rawValue) : UIColor.red] let string = NSAttributedString(string: "Text for first Attribute", attributes: attributeOne) let string2 = NSAttributedString(string: "Text for first Attribute", attributes: attributeTwo) let finalAttributedString = NSMutableAttributedString() finalAttributedString.append(string) finalAttributedString.append(string2) tx.attributedText = finalAttributedString self.view.addSubview(tx)
When we’ll write up this code within our application, in viewDidLoad or viewWillAppear, this will create the textView as shown below.
Updated on: 30-Jul-2019
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