explaingit

leichunfeng/mvvmreactivecocoa

Analysis updated 2026-07-03

★ 3,696Objective-CAudience · developerComplexity · 3/5LicenseSetup · moderate

TLDR

Complete source code for an iOS GitHub client app in Objective-C, built as a reference for the MVVM pattern using ReactiveCocoa, Mantle, and octokit.objc.

Mindmap

mindmap
  root((repo))
    What it does
      iOS GitHub client
      Browse and star repos
      Follow users
    Tech stack
      Objective-C
      iOS 8 plus
      ReactiveCocoa
    Use cases
      Learn MVVM on iOS
      Study ReactiveCocoa
      Fork GitHub client
    Audience
      iOS developers
      Mobile learners
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Code map

Detail Auto

An interactive map of this repo's files and how they connect — its source is parsed live in your browser. Click Visualize to build it.

filefunction / class

What do people build with it?

USE CASE 1

Study a complete real-world iOS MVVM app in Objective-C to learn how to separate data logic from UI code.

USE CASE 2

See how ReactiveCocoa handles events and data binding between the Model, View, and ViewModel layers in a full app.

USE CASE 3

Fork the project as a starting point for your own iOS GitHub client or mobile API browser.

USE CASE 4

Learn how octokit.objc and Mantle are used together to fetch GitHub API data and map it into typed model objects.

What is it built with?

Objective-CiOSReactiveCocoaMantleoctokit.objcXcode

How does it compare?

leichunfeng/mvvmreactivecocoatelly/tlyshynavbarcoderzhuxh/xhlaunchad
Stars3,6963,7053,684
LanguageObjective-CObjective-CObjective-C
Setup difficultymoderateeasyeasy
Complexity3/52/52/5
Audiencedeveloperdeveloperdeveloper

Figures from each repo's GitHub metadata at analysis time.

How do you get it running?

Difficulty · moderate Time to first run · 30min

Clone with --recursive to pull in submodule dependencies, then open the .xcworkspace file in Xcode on a Mac.

MIT licensed, use, copy, or modify freely for any purpose including commercial, as long as you keep the copyright notice.

In plain English

MVVMReactiveCocoa is the source code for GitBucket, an iOS app that acts as a mobile client for GitHub. It is written in Objective-C and requires iOS 8.0 or later. The app lets you browse repositories you own or have starred, read a repository's README and source files, view your followers and following list, follow and unfollow other users, and search for repositories to star or unstar. The author built this project primarily as a reference for iOS developers who want to see a complete application using the MVVM architectural pattern alongside the ReactiveCocoa framework. MVVM stands for Model-View-ViewModel, a way of organizing app code that separates the data logic from the visual layer. Other libraries used include Mantle for working with API response data and octokit.objc for talking to the GitHub API. To build the project yourself, you clone the repository with the --recursive flag (to pull in the dependencies) and open the workspace file in Xcode. The README includes a class diagram showing the structure of the code. The project is available under the MIT license, and pull requests are welcome.

Copy-paste prompts

Prompt 1
In MVVMReactiveCocoa, show me how a ViewModel exposes data to a ViewController using ReactiveCocoa signals. Give me the pattern I can copy into my own MVVM iOS app.
Prompt 2
How does MVVMReactiveCocoa use Mantle to map GitHub API JSON into model objects? Show me one example model class with its JSON mapping.
Prompt 3
Explain how the repository list screen is structured in MVVMReactiveCocoa: which Objective-C classes are the Model, View, and ViewModel, and how do they communicate?
Prompt 4
I want to add a notifications screen to MVVMReactiveCocoa. Which octokit.objc endpoint should I call and how should I structure the new ViewModel to follow the existing pattern?

Frequently asked questions

What is mvvmreactivecocoa?

Complete source code for an iOS GitHub client app in Objective-C, built as a reference for the MVVM pattern using ReactiveCocoa, Mantle, and octokit.objc.

What language is mvvmreactivecocoa written in?

Mainly Objective-C. The stack also includes Objective-C, iOS, ReactiveCocoa.

What license does mvvmreactivecocoa use?

MIT licensed, use, copy, or modify freely for any purpose including commercial, as long as you keep the copyright notice.

How hard is mvvmreactivecocoa to set up?

Setup difficulty is rated moderate, with roughly 30min to a first successful run.

Who is mvvmreactivecocoa for?

Mainly developer.

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