Brightlayer UI themes for React Native applications

This package provides theming support for Eaton applications using the Brightlayer UI design system. It includes resources for developers using React Native with react-native-paper. This package comes with two theme options: a Blue theme (standard) and a Dark theme.

For other frameworks, check out our related packages:

• @brightlayer-ui/angular-themes
• @brightlayer-ui/react-themes

Installation

Install with npm

npm install --save @brightlayer-ui/react-native-themes

or yarn

yarn add @brightlayer-ui/react-native-themes

Usage

NOTE: Using the Brightlayer UI React Native theme requires that you add the Open Sans font to your application. You can learn how to do this by reading the instructions for Vanilla React Native or Expo. This will be added automatically if you start your project with the @brightlayer-ui/cli.

When using Expo, you will need to specify the name for each font weight you load using the format OpenSans-<Weight>, e.g., OpenSans-SemiBold. Refer to one of our React Native demos for reference.

To use our themes in your application, simply wrap the app in a Provider and pass in your desired theme (e.g., blue, blueDark).

Light Theme

import { Provider as ThemeProvider} from 'react-native-paper';
import * as BLUIThemes from '@brightlayer-ui/react-native-themes';
...
// Default Theme
<ThemeProvider theme={BLUIThemes.blue}>
    <App />
</ThemeProvider>

Dark Theme

import { Provider as ThemeProvider} from 'react-native-paper';
import * as BLUIThemes from '@brightlayer-ui/react-native-themes';
...
<ThemeProvider theme={BLUIThemes.blueDark}>
    <App />
</ThemeProvider>

React Native Paper Components Style Override

This Document contains a set of style overrides in components around various React Native Paper components.

By default, the theming mechanism provided by RNP is very minimal and does not allow us to style components precisely the way we want for Brightlayer UI applications. The theme does not cover all cases to circumvent this issue, for some components, you may need to add extra styles or theme overrides inline that can be used to bring them in alignment with Brightlayer UI applications

To style components listed in the document to look correct in the application, you should use the Brightlayer UI Components Style Override in place of the respective components from React Native Paper.

TypeScript

Our Brightlayer UI themes extend the themes provided by React Native Paper. If you are using these themes in a TypeScript project and want to access any of the properties that were added to the defaults, you need to use useExtendedTheme hook in your project:

import { useExtendedTheme } from '@brightlayer-ui/react-native-themes';
...
const theme = useExtendedTheme();
<Button mode="contained" style={{ backgroundColor: theme.colors.onOrangeFilledContainer }}>
    Label
</Button>

Usage of useFontWeight hook in your project

When the fontFamily of a Text element in your application needs to be modified, you can use the useFontWeight hook.For instance, to set the fontWeight to "bold", you can utilize the useFontWeight() hook as demonstrated below:

import { useFontWeight } from '@brightlayer-ui/react-native-themes';
...
const fontStyleBold = useFontWeight('700');
<Text variant={'headlineLarge'} style={{ ...fontStyleBold }}>
    headlineLarge
</Text>

Upgrading from version 6 -> 7

In the version 7, the library has been updated to use React Native Paper v5, which is adopting Material Design 3. The themes have now been updated to use Material Design 3 Themes.