react-native-svg

What is react-native-svg?

The react-native-svg package allows React Native developers to render SVG images within their mobile applications. It provides a set of SVG primitives that work in a similar way to the standard React Native components. With react-native-svg, you can create complex shapes, paths, and graphics that are scalable without losing quality, which is essential for responsive design.

What are react-native-svg's main functionalities?

Drawing basic shapes

This code sample demonstrates how to draw a basic circle shape with a green fill and a blue stroke.

{"<Svg height=\"100\" width=\"100\"><Circle cx=\"50\" cy=\"50\" r=\"45\" stroke=\"blue\" strokeWidth=\"2.5\" fill=\"green\"/></Svg>"}

Creating paths

This code sample shows how to create a path using the 'Path' component, which allows for more complex shapes and lines.

{"<Svg height=\"100\" width=\"100\"><Path d=\"M40 60 A 10 10 0 0 0 60 60\" fill=\"none\" stroke=\"black\"/></Svg>"}

Applying gradients

This code sample illustrates how to apply a linear gradient to an ellipse shape.

{"<Svg height=\"100\" width=\"100\"><Defs><LinearGradient id=\"grad\" x1=\"0%\" y1=\"0%\" x2=\"100%\" y2=\"0%\"><Stop offset=\"0%\" stopColor=\"rgb(255,255,0)\" stopOpacity=\"0\" /><Stop offset=\"100%\" stopColor=\"rgb(255,0,0)\" stopOpacity=\"1\" /></LinearGradient></Defs><Ellipse cx=\"50\" cy=\"50\" rx=\"50\" ry=\"20\" fill=\"url(#grad)\"/></Svg>"}

Text rendering

This code sample shows how to render text within an SVG using the 'Text' component.

{"<Svg height=\"100\" width=\"100\"><Text x=\"50\" y=\"50\" textAnchor=\"middle\" fill=\"purple\">SVG Text</Text></Svg>"}

Other packages similar to react-native-svg

victory-native

Victory-native is a collection of components for building interactive data visualizations in React Native applications. It is built on top of react-native-svg and provides a higher-level abstraction for creating charts and graphs. While react-native-svg is more about drawing SVG elements, victory-native focuses on data representation and charting.

react-native-canvas

React-native-canvas provides a 2D drawing context similar to HTML canvas. It is not SVG-based but allows for dynamic graphics and animations. It can be more performant for complex animations but lacks the scalability of SVG.

react-native-art-svg

React-native-art-svg is another library for rendering SVG images in React Native. It is based on the ART library, which is a retained mode vector drawing system. It offers similar functionalities to react-native-svg but has a different API and is less commonly used.

README

react-native-svg

react-native-svg provides SVG support to React Native on iOS, Android, macOS, Windows, and a compatibility layer for the web.

Check out the Example app

• Features
• Installation
• Troubleshooting
• Opening issues
• Usage
• TODO
• Known issues

Features

1. Supports most SVG elements and properties (Rect, Circle, Line, Polyline, Polygon, G ...).
2. Easy to convert SVG code to react-native-svg.

Installation

With expo-cli

✅ The Expo client app comes with the native code installed!

Install the JavaScript with:

expo install react-native-svg

📚 See the Expo docs for more info or jump ahead to Usage.

With react-native-cli

1. Install library

   from npm

   npm install react-native-svg
   

   from yarn

   yarn add react-native-svg
   

2. Link native code

   cd ios && pod install
   

Supported react-native versions

react-native-svg	react-native
3.2.0	0.29
4.2.0	0.32
4.3.0	0.33
4.4.0	0.38
4.5.0	0.40
5.1.8	0.44
5.2.0	0.45
5.3.0	0.46
5.4.1	0.47
5.5.1	>=0.50
>=6	>=0.50
>=7	>=0.57.4
>=8	>=0.57.4
>=9	>=0.57.4
>=12.3.0	>=0.63.0

Support for Fabric

Fabric is React Native's new rendering system. As of version 13.0.0 of this project, Fabric is supported only for react-native 0.69.0+. Support for earlier versions is not possible due to breaking changes in configuration.

react-native-svg	react-native
13.0.0+	0.69.0+

Troubleshooting

Problems with Proguard

When Proguard is enabled (which it is by default for Android release builds), it causes runtime error. To avoid this, add an exception to android/app/proguard-rules.pro:

-keep public class com.horcrux.svg.** {*;}

If you have build errors, then it might be caused by caching issues, please try:

watchman watch-del-all
rm -fr $TMPDIR/react-*
react-native start --reset-cache

Or,

rm -rf node_modules
yarn
react-native start --reset-cache

Unexpected behavior

If you have unexpected behavior, please create a clean project with the latest versions of react-native and react-native-svg

react-native init CleanProject
cd CleanProject/
yarn add react-native-svg
cd ios && pod install && cd ..

Make a reproduction of the problem in App.js

react-native run-ios
react-native run-android

Opening issues

Verify that it is still an issue with the latest version as specified in the previous step. If so, open a new issue, include the entire App.js file, specify what platforms you've tested, and the results of running this command:

react-native info

If you suspect that you've found a spec conformance bug, then you can test using your component in a react-native-web project by forking this codesandbox, to see how different browsers render the same content: https://codesandbox.io/s/pypn6mn3y7 If any evergreen browser with significant userbase or other svg user agent renders some svg content better, or supports more of the svg and related specs, please open an issue asap.

Usage

To check how to use the library, see USAGE.md

TODO:

1. Filters (connected PR)

Known issues:

1. Unable to apply focus point of RadialGradient on Android.