How to change chart colors in Graphs?

The README doesn't provide explicit examples for color customization; you may need to modify the GraphView directly or explore the Playgrounds for limited styling options, as it's a basic library focused on simplicity.

Is Graphs compatible with SwiftUI?

No, Graphs is designed for UIKit and doesn't mention SwiftUI support. It requires iOS 8.0+ and is built with traditional iOS frameworks, so it won't integrate directly with SwiftUI views.

How to update a chart dynamically with new data?

Graphs generates static views from data structures, so you need to recreate the GraphView with updated data; there's no built-in mechanism for dynamic updates or animations, which can be inefficient for real-time applications.

Graphs vs Charts library for iOS – which one is better?

Graphs is lighter and simpler for basic bar, line, and pie charts with minimal code, while Charts (by Daniel Gindi) offers more chart types and customization. Choose Graphs for quick prototypes, Charts for feature-rich visualizations.

What iOS versions does Graphs support?

Graphs supports iOS 8.0 and above, as stated in the README, making it compatible with older devices but potentially lacking optimizations for newer iOS versions and APIs.

Can I use Graphs in an Objective-C project?

Likely not, as it's written in Swift and relies on generics, which don't bridge well to Objective-C. The README doesn't mention Objective-C compatibility, so it's best suited for Swift-only projects.

How to handle large datasets in Graphs?

Graphs is lightweight and may not be optimized for performance with very large datasets; for efficiency, consider preprocessing data or using a more robust library designed for heavy data visualization.

Open-Awesome

Graphs

MITSwift

A lightweight Swift library for generating bar, line, and pie charts from data structures like arrays and dictionaries on iOS.

GitHub

967 stars61 forks0 contributors

What is Graphs?

Graphs is a lightweight charting library for iOS that generates bar, line, and pie charts directly from Swift data structures like arrays, ranges, and dictionaries. It solves the problem of quickly adding simple, customizable graphs to iOS apps without complex setup or external dependencies.

Target Audience

iOS developers using Swift who need to integrate basic charts (bar, line, pie) into their applications with minimal code and overhead.

Value Proposition

Developers choose Graphs for its Swift-native design, simplicity, and lightweight approach, offering a straightforward alternative to heavier charting frameworks while maintaining type safety and ease of use.

Overview

Light weight charts view generater for iOS. Written in Swift.

Use Cases

Best For

Adding simple bar charts to display numeric ranges in iOS apps
Creating line graphs from array data for trend visualization
Building pie charts to show proportional data from dictionaries
Swift projects needing lightweight, no-fuss charting components
iOS prototypes or demos requiring quick chart integration
Educational apps or tools that visualize data with basic graphs

Not Ideal For

Apps requiring advanced chart types like scatter plots, area charts, or candlestick charts
Projects that rely heavily on Interface Builder for UI design and layout
Teams needing highly interactive or animated charts with real-time data updates
Data-intensive applications where performance with large datasets is critical

Pros & Cons

Pros

Swift Native Integration

Uses Swift generics and protocols for type-safe chart creation directly from native data structures, as shown in the GraphData protocol example, ensuring compile-time safety and idiomatic code.

Minimal Code Overhead

Charts can be generated with a single line of code from ranges, arrays, or dictionaries, as demonstrated in the README examples, making integration quick and straightforward.

Lightweight and Dependency-Free

The library has minimal dependencies and a simple API focused on core charting functionality, reducing app bloat and complexity, as emphasized in the philosophy section.

Easy Installation

Supports both CocoaPods and Carthage with clear setup instructions in the README, allowing seamless integration into iOS projects without complex configuration.

Cons

Limited Chart Variety

Only supports bar, line, and pie charts, lacking common types like scatter or area charts, which restricts its use for complex data visualizations beyond basic needs.

No Interface Builder Support

The README explicitly states that GraphView doesn't work on Interface Builder due to generics, forcing developers to code UI entirely programmatically, which can hinder design workflows.

Basic Customization Options

While customizable for simple cases via GraphRange or closures, it lacks advanced styling, animations, and interactivity features found in more comprehensive charting libraries.

Potentially Outdated

Targets iOS 8.0+ and XCode 7.3+, which are old versions, suggesting it might not be actively maintained or compatible with modern Swift conventions and iOS features.

Frequently Asked Questions

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