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https://github.com/hectahertz/react-native-typography

Pixel–perfect, native–looking typographic styles for React Native ✒️
https://github.com/hectahertz/react-native-typography

android ios react react-native typography typography-themes

Last synced: about 2 months ago
JSON representation

Pixel–perfect, native–looking typographic styles for React Native ✒️

Host: GitHub
URL: https://github.com/hectahertz/react-native-typography
Owner: hectahertz
License: mit
Created: 2017-12-04T16:12:46.000Z (over 6 years ago)
Default Branch: master
Last Pushed: 2022-12-06T19:46:37.000Z (over 1 year ago)
Last Synced: 2024-04-24T15:09:57.046Z (2 months ago)
Topics: android, ios, react, react-native, typography, typography-themes
Language: JavaScript
Homepage:
Size: 4.14 MB
Stars: 3,383
Watchers: 31
Forks: 105
Open Issues: 22
Metadata Files:
- Readme: README.md
- License: LICENSE

Lists

awesome-react-native - react-native-typography ★2260
awesome-list - react-native-typography
awesome-react-native - react-native-typography
awesome-react-native - react-native-typography ★2260
awesome-reactnative-ui - react-native-typography - native-typography/HEAD/images/logo.png)| (Others)
awesome - react-native-typography ★2260
react-native-awesome-text - react-native-typography
awesome-reactnative-ui - react-native-typography - native-typography/HEAD/images/logo.png)| (Others)
awesome-react-native - react-native-typography ★69
awesome-stars - react-native-typography
awesome-react-native - react-native-typography ★2260
awesome-stars - react-native-typography
awesome-react-native - react-native-typography ★2260
awesome-react-native - react-native-typography ★2260
awesome-stars - hectahertz/react-native-typography - Pixel–perfect, native–looking typographic styles for React Native ✒️ (JavaScript)
awesome-react-native - react-native-typography ★69

README

        # 

Pixel–perfect, native–looking typographic styles for React Native.

[![npm version](https://img.shields.io/npm/v/react-native-typography.svg)](https://www.npmjs.com/package/react-native-typography)

[![License: MIT](https://img.shields.io/badge/License-MIT-green.svg)](https://opensource.org/licenses/MIT)

[![npm downloads](https://img.shields.io/npm/dm/react-native-typography.svg)](https://www.npmjs.com/package/react-native-typography)









## Why

Creating great Text Styles in React Native

[is not a simple task](https://medium.com/@martin_adamko/react-native-quirks-2fb1ae0bbf80),

it requires a lot of fiddling and handling edge cases.

This library provides a good set of defaults and helpers that cover the majority

of the cases you'll need, make your code much simpler and ✨*bonus*✨ render

great [on iOS, Android and the web](#cross-platform) 😄

## Quick start

Add the dependency:

```sh

yarn add react-native-typography

```

Set a style in your component:

```JSX

import { material } from 'react-native-typography'

Hello Typography!

```

And it will look like this:







### Example app

* You can run the example app

  [via Expo](https://expo.io/@hectahertz/react-native-typography-example) or

  [check the code](example/App.js), all of the screenshots are taken directly

  from there!

## Typography collections

We provide a series of predefined collections for you to start with that match

the native design systems for iOS and Android.

You can **use them directly** wherever you would supply a

[textStyle](https://facebook.github.io/react-native/docs/text#style).

There's also the option of [extending them](#customization--helpers) to create

your own styles.

### Material Design

Includes all the styles defined in the

[Material Design Guidelines](https://material.io/guidelines/style/typography.html#typography-styles).

Defines size, weight and color.

```JSX

import { material } from 'react-native-typography'

Hello Material!

```



### Human Interface Guidelines

Defined in the

[Human Interface Guidelines](https://developer.apple.com/ios/human-interface-guidelines/visual-design/typography/).

Defines size, weight and color.

```JSX

import { human } from 'react-native-typography'

Hello Human!

```



### iOSUIKit

Extracted from

[the official Apple sketch file](https://developer.apple.com/design/resources/)

These are the text styles that fall under the category of iOS UIKit, and are

used to build the UI components of iOS Apps.

They build on top of the Human Interface styles, customizing some properties

such as weight or letter spacing.

```JSX

import { iOSUIKit } from 'react-native-typography'

Hello iOS UI Kit!

```



## Customization & Helpers

The collections provide every style in 2 different ways:

* As a StyleSheet, e.g.: `material.title`

* As a plain object, e.g.: `material.titleObject`

The basic way to use them is to set the StyleSheet directly where you would

supply a

[textStyle](https://facebook.github.io/react-native/docs/text#style):

```JSX

Title

```

To extend the styles, you can **spread the object** inside your own StyleSheet

and override some of its attributes:

```JSX

const styles = StyleSheet.create({

  yellowTitle: {

    ...material.titleObject,

    color: iOSColors.yellow,

  },

});

Title

```

Another option would be to **combine the provided StyleSheet** with your own

StyleSheet.

```JSX

const styles = StyleSheet.create({

  yellow: {

    color: iOSColors.yellow,

  },

});

Title

```

### Weights

A font weight in React Native is sometimes formed by a pair of a fontFamily and

a fontWeight, but not always! It depends on the typeface, sometimes it's just

defined by the fontFamily.

With these helpers, you don't have to worry about those inconsistencies.

To combine them with a collection style (or your own styles) just spread them,

as they are plain objects.

```JSX

const styles = StyleSheet.create({

  lightTitle: {

    ...material.titleObject,

    ...systemWeights.light,

  },

});

Title

```

#### System Weights

```JSX

import { systemWeights } from 'react-native-typography'

```

The System weights render visually similar weights of the **Native

typefaces** on each platform.

[Read more about cross-platform here.](#cross-platform)

This is the recommended way of customizing your weights unless you really need

different visual styles for each platform.

They follow the San Francisco naming convention, as it has more steps, which

makes it more future–proof.







#### San Francisco Weights

```JSX

import { sanFranciscoWeights } from 'react-native-typography'

```

These weights are **only intended for iOS**, as they directly reference the

native San Francisco typeface.



#### Roboto Weights

```JSX

import { robotoWeights } from 'react-native-typography'

```

These weights are **only intended for Android**, as they directly reference the

native Roboto typeface.



#### Web Weights

```JSX

import { webWeights } from 'react-native-typography'

```

These weights are **only intended for the web**, and render [react-native-web](https://github.com/necolas/react-native-web)'s system font stack.



### Colors

We also include the default text color hex values for each platform.

#### iOS

```JSX

import { iOSColors } from 'react-native-typography'

```



```JSX

const styles = StyleSheet.create({

  yellowTitle: {

    ...human.title3Object,

    color: iOSColors.yellow,

  },

});

Title

```

#### Material

```JSX

import { materialColors } from 'react-native-typography'

```



```JSX

const styles = StyleSheet.create({

  tertiaryTitle: {

    ...material.titleObject,

    color: materialColors.blackTertiary,

  },

});

Title

```

### Spacing/Kerning

#### San Francisco

The San Francisco typeface defines its letter spacing via Kerning. This

is not compatible with the React Native text style properties, as they take

letter-spacing instead.

To perform this conversion on iOS you can use the `sanFranciscoSpacing` function, which

receives the font size and returns the appropriate letter spacing.

This is not needed for the web as the browsers already take care of this.

```JSX

import { sanFranciscoSpacing } from 'react-native-typography'

const styles = StyleSheet.create({

  customSize: {

    ..., // some other props

    fontSize: 34,

    letterSpacing: sanFranciscoSpacing(34),

  },

});

```

This is already taken care of on the collections, but if you want to define your

own sizes you can adjust the spacing on iOS with this helper.

## Dense and tall scripts

Dense and tall scripts are fully supported, check [the full documentation here!](DENSE_TALL.md)

```JSX

import { materialDense } from 'react-native-typography'

你好排版！

```







## Cross-platform

Quoting

[the Material Design Platform recommendations](https://material.io/guidelines/platforms/platform-adaptation.html#platform-adaptation-platform-recommendations)

> The default typeface on iOS is San Francisco. Using this typeface is the

> easiest way to implement accessibility features like Dynamic Type. Using other

> typefaces may require making adjustments to get the same accessibility

> features.

This is the approach that we like to follow, and all the collections exported

from this library render nicely on all the supported platforms with their respective native

typefaces, for that we use the [System](#system-weights) weight helper.

You can [check the code of the example app](example/App.js) where we included a

couple of screens that follow this philosophy, this is how they render on iOS and Android:

















## F.A.Q.

#### But I don't wanna use the Material Design or Human Interface Guidelines! Is there any reason why I should use this library?

Absolutely! The helpers are very convenient to build your own text styles as

they work around

[the quirks of working with text styles on React Native](https://medium.com/@martin_adamko/react-native-quirks-2fb1ae0bbf80),

even if you want to specify your own sizes and weights,

[check them out!](#customization--helpers)

#### Kerning is not 100% accurate on the Display sizes for the Material styles on Android

There's no support for letter spacing on React Native Android yet. ☹️

#### Where is Roboto Black?

It's not available by default on React Native Android yet. 😐

#### Why are there less weights available for CJK(Chinese, Japanese, Korean) languages on Android than iOS?

Android uses Noto Sans CJK (also known as Source Han Sans) to render those

languages, and

[even though it has seven weights](https://material.io/guidelines/style/typography.html#typography-typeface),

they're not shipped with Android. 😕

There are some issues tracking this already, hopefully they will be included in

the future.

* https://issuetracker.google.com/issues/37064674

* https://issuetracker.google.com/issues/37106325

#### I use styled-components/glamorous/etc. Can I use react-native-typography?

Of course! There are some examples in the provided app,

[check the code!](example/screens/type/IntegrationsScreen.js)

#### Why is this library exporting StyleSheets and objects instead of components?

The idea behind it is that textStyles are the universally accepted way of

styling text and this makes integration

[with many libraries](https://reactnavigation.org/docs/navigators/stack#headerTitleStyle)

easier.

The StyleSheet/Object pattern is

[already being used](https://facebook.github.io/react-native/docs/stylesheet.html#absolutefill)

in the React Native codebase to provide an easy way to extend exported

StyleSheets.

If you enjoy using pre-styled components for your text, you can easily

define them and just supply the desired styles from this library! 🙂

## Versioning

We use [SemVer](http://semver.org/) for versioning. For the versions available,

see the

[tags in this repository](https://github.com/hectahertz/react-native-typography/tags).

## Authors

* **[Hector Garcia](https://github.com/hectahertz)**

See also the list of

[contributors](https://github.com/hectahertz/react-native-typography/contributors)

who participated in this project.

## License

This project is licensed under the MIT License.

## Acknowledgments

* [Kyle Hickinson](https://github.com/kylehickinson) - thanks for

  [the work on the kerning values for San Francisco](https://github.com/kylehickinson/Sketch-SF-UI-Font-Fixer)

  and for being so nice!

* [Bartol Karuza](https://github.com/bartolkaruza) &

  [Chris Lewis](https://github.com/cdlewis) - thanks for the work on fixing the

  line heights inconsistencies in React Native.

* [Alina Cvetkova](https://twitter.com/nuacco) - thanks for your help with the

  UX and visual fine–tuning.

### Pictures for the demo app by:

* [Sasha Freemind](https://unsplash.com/@sashafreemind)

* [Seth Doyle](https://unsplash.com/@sethdoylee)

* [Angel Jimenez](https://unsplash.com/@particularangelvision)

* [Efe Kurnaz](https://unsplash.com/@efekurnaz)

* [Mário Silva](https://unsplash.com/@mariosilva)

* [Paul Morris](https://unsplash.com/@oldskool2016)

* [Joel Filipe](https://unsplash.com/@joelfilip)

* [Wild Vibez](https://unsplash.com/@wldvbz)

## References

* https://developer.apple.com/ios/human-interface-guidelines/visual-design/typography/

* https://material.io/guidelines/style/typography.html

* https://developer.apple.com/design/resources/

* https://facebook.github.io/react-native/docs/text.html#style

* https://medium.com/@knoland/typography-in-react-native-f09c43b5b435

* https://developer.apple.com/videos/play/wwdc2015/804/

* https://developer.apple.com/videos/play/wwdc2016/801/

* https://medium.com/react-native-training/list-of-available-react-native-fonts-ed78b48bd45e

* https://developer.apple.com/documentation/uikit/uifontdescriptor/font_weights

* https://v1.designcode.io/iosdesign-guidelines

* http://devsign.co/notes/tracking-and-character-spacing

* https://www.raizlabs.com/dev/2015/08/advanced-ios-typography/

* https://medium.com/@sauvik_dolui/handling-fonts-in-ios-development-a-simpler-way-32d360cdc1b6

* https://readymag.com/arzamas/132908/6/

* https://github.com/facebook/react-native/pull/14609

* https://github.com/react-native-training/react-native-fonts