How do I make an attributed string using Swift?

How to Make an Attributed String Using Swift 😎📝

So, you want to make an attributed string in Swift, huh? 🤔 Not to worry, I've got your back! In this blog post, I'll guide you through the process step-by-step, so you can create an attributed string like a pro. Let's jump right in! 💪

Understanding the Problem 😕

To give you a little context, we have a Coffee Calculator app and we need to display the amount of coffee in grams. The catch is, we want to add a lower case "g" symbol at the end of the UILabel, which should be attached to the dynamically changing numbers. We've already searched the documentation and even tried an "Attributed String Creator" app, but didn't find a suitable solution. 😩

Finding the Solution 🕵️‍♂️

To solve this problem, we'll create a custom attributed string that includes the desired "g" symbol with a custom font. Here's a straightforward example of how you can achieve this in Swift:

let coffeeAmount: Int = 123
let formattedCoffeeAmount = "\(coffeeAmount)g"

let attributedString = NSMutableAttributedString(string: formattedCoffeeAmount, attributes: [
    .font: UIFont.systemFont(ofSize: 20),
    .foregroundColor: UIColor.black
])

attributedString.addAttributes([
    .font: UIFont.boldSystemFont(ofSize: 24),
    .foregroundColor: UIColor.red
], range: NSRange(location: formattedCoffeeAmount.count - 1, length: 1))

yourLabel.attributedText = attributedString

Breaking Down the Code 🔍

Let's go through the code snippet step-by-step:

1. We define the initial coffee amount as an integer and format it with the "g" symbol.

2. Next, we create a NSMutableAttributedString using the string initializer and provide a dictionary of attributes for the initial string. In this case, we set the font size to 20 and the foreground color to black.

3. We then add additional attributes using the addAttributes(_:range:) method. Here, we set the font size to 24 and the foreground color to red for the "g" symbol. The range ensures that only the last character (the "g") is affected.

4. Finally, we set the attributedText property of your UILabel(yourLabel) to the newly created attributed string.

And that's it! With just a few lines of code, you can create a dynamic attributed string with a customized "g" symbol attached to your coffee amount. ☕️✨🎉

The Call to Action 📣

I hope this guide has helped you solve the problem you were facing with creating an attributed string in Swift. If you found this blog post useful, don't forget to share it with your fellow developers who might be struggling with the same issue! Let's spread the knowledge and make coding easier for everyone. 🌟✨

If you have any other questions or need further clarification, feel free to leave a comment below. I'm here to help! Happy coding! 💻🚀