Hello guys, today we will be using a design system framework for iOS. Specifically, we will build the the screen like as image:

    This view is a ready-made library, your work is change the text on the screen. Completely simple and takes no time.

 FinniversKit framework

   FinniversKit framework is an open source built on top of their UI/UX design system. You can see the source code here:


   If you are a developer interested in user experience and design styles, then you have probably heard of the concept of design system. I would like to share easy-to-understand articles about design systems here by author An:

    So FinniversKit is transforming a design system on figma or other design tools into a framework that can be used on iOS.

 Let’s walk through this framework a bit:

 Color – Font – Spacing

 We have the following color range:

 These are all the colors that can be used in this framework, in other words, if you use a color other than this color range, you are not complying with its design system.

 If you’ve read about POP in my previous post, follow the code below and you’ll be familiar:

   You will see that they designed a protocol to define all the colors that can be used. The color code definition is as follows:

 With POP we will not need to inherit, but still ensure the encapsulation of the data, namely the colors above.

 If you want to apply them to our project, check out their demo:

 or simply UIColor.ice

   Second, let’s talk about Fonts. In other words, Typography – typeface.

   These are the typefaces that we can use. To apply the application method, simply go to the FontDemoView.swift file.

 About spacing – the distance can be used as shown:


     About the components in this framework, it is very important that we can reuse it in many places. The most common components like button, textfield, loading… will save us a lot of time. Instead of you having to redraw a button: in terms of contours, shadows, shadows, effects, etc., simply reuse the types of buttons they already support:

To understand how to use it, let’s simply go to their ButtonDemoView.swift demo screen. If you really don’t know which demo it belongs to, use the UI debug tool to see


   There are many other components that you can run their demo application to see. I really like this framework, because it also supports dark mode:

 Many other components, for example loading:

 Using FinniversKit in iOS projects

 To use this framework, in the readme there are many ways, among which is simply using pod.

     For this article alone, I will use Carthage. The reason is because I am obsessed that pod build is very slow when using too many pods in the Podfile. And this tutorial is also intended to give you a reference on how to implement Carthage.

 First you have to install Homebrew:

ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"

 Update Homebrew:

brew update

 Install carthage:

brew install carthage

   When you has finished installing. Let’s create a Cartfile in your project directory:

touch Cartfile

 Add this line to the file:

github "finn-no/FinniversKit" "master"

 Add file input.xcfilelist and add this line:


 Add output.xcfilelist and add this line:


Add file carthage.sh: 

 Add run permission to it by typing terminal:

 chmod +x ./carthage.sh

 Finally run the following command to build the above library:

 ./carthage.sh update --platform iOS  --new-resolver

The above command prevents it from rebuilding the already built Carthage frameworks and only builds for iOS. Wait for the first build, then Carthage generates the built framework folder for iOS:   


 The end is adding libraries.

 First Tab to the General of the project and click the “+” button of the Linked Frameworks and Library section:

 After adding the necessary Lib, we go to Build Phases, click the + button, select New Run Script Phase:

 /usr/local/bin/carthage copy-frameworks

 And fill in as screen:

 This lets Xcode copy the framework into the project and use it.

 After successfully adding FinniversKit, let’s create a demo login screen for example:

 The result is the same as the first image.

 The entire sample project you can download here:


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