React Native Styled System

Bring styled-system to React Native

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• Documentation

React Native Styled System is a React Native implementation of the styled-system package commonly used on the web.

Highlights

• ⚡️ All styles are allowed to be cached. So it doesn't cause any rerender if result is consistent.
• ⭐️ Allows arguments such as m, px, py, bg, flex, flexDirection, position to be passed directly to Props according to the grammar of styled-system.
• 🎨 Users can define the design system by directly defining and delivering themes.
• ❤️ TypeScript can be fully used through the Type Generation process using CLI.
• 🚀 Logical or responsive values such as safeAreaTop and sidePadding can be injected into the theme and used as token values.
• 💬 Text Typography
• 🎉 Integrate Dark Theme easily.

Why we need styled-system

Let me show this code.

const Sample = () => {
  const theme = useTheme();

  return (
    <View style={{
      backgroundColor: theme.colors.red500,
      borderRadius: theme.radii.lg
    }}>
      <Text style={[theme.typography.h1, { marginTop: theme.spaces[4] }]}>
        React Native
      </Text>
    </View>
  );
};

This is quite verbose.

With Styled System! 👇

const Sample = () => {
  return (
    <Box bg={'red500'} radius={'lg'}>
      <Txt t={'h1'} mt={4}>
        React Native
      </Txt>
    </Box>
  );
};

styled-system is useful for rapid UI development by providing a consistent approach to styling in React applications.

It offers a design system with predefined style props that streamline component styling, ensuring scalability, consistency, and responsive design.

But original styled-system is for CSS not in React Native.

We introduce React Native Styled System 🎉

 

Note

It does not fully support the grammar of styled-system and there are some grammars that are not currently supported, but this is not a technical limitation and will be added as needed.

Styles such as justifySelf that are not yet supported in React Native obviously cannot be added in the future.

Contributing

Feel like contributing? That's awesome! We have a contributing guide to help guide you.

Lincese

MIT