Lesson 5: Theming and Customizing Your App

Theming and Customizing Your App

Theming allows you to define a consistent look and feel for your application. This can include colors, fonts, spacing, and other design elements.

1. Creating a Theme:

   • Define a theme object with your design tokens.
   const theme = {
colors: {
primary: '#FF5733',
secondary: '#3333FF',
},
fonts: {
regular: 'Roboto',
bold: 'Roboto-Bold',
},
};


2. Using a Theme with Styled Components:

   • Pass the theme to your styled components.
   import { ThemeProvider } from 'styled-components/native';

   <ThemeProvider theme={theme}>
<Container>
<StyledText>Custom Theming</StyledText>
</Container>
</ThemeProvider>


3. Customizing Components:

   • Create reusable components that adhere to your theme.
   const Button = styled.TouchableOpacity`
   background-color: ${({ theme }) => theme.colors.primary};
   padding: 10px;
   border-radius: 5px;
   `;

   const ButtonText = styled.Text`
color: white;
font-family: ${({ theme }) => theme.fonts.bold};
`;


4. Benefits:

   • Consistent design language across the app.
   • Easier to maintain and update styles.
   • Enhances the user experience by providing a cohesive look.

Conclusion: Theming and customization allow you to create a unique and consistent visual identity for your Expo application. By defining design tokens and using them throughout your components, you can ensure a professional and cohesive look.