Dark Mode

Dark Mode

Dark mode has become a standard feature expected in modern mobile applications. This tutorial explains how to detect and implement dark mode support in React Native.

Detecting the System Color Scheme

React Native provides the useColorScheme hook, which returns the current system-level color scheme preference, either "light" or "dark".

Creating a Theme Object

A common pattern is defining separate light and dark theme objects containing color values, then selecting the appropriate theme based on the current color scheme.

Applying Theme Colors Dynamically

Using Context for App-Wide Theming

For larger applications, a Theme Context is commonly created to provide theme values throughout the component tree without passing props manually at every level.

Allowing Manual Theme Override

Many apps also allow users to manually select light or dark mode within settings, overriding the system default, which requires storing the preference using AsyncStorage.

Conclusion

Implementing dark mode using useColorScheme and a centralized theme object allows your React Native application to automatically adapt to user preferences, providing a modern and comfortable viewing experience.