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control the platform theme from react native





Control the native platform theme from React Native.

✅ Control theme of RN Views, as well as native UI controls (alerts, native menus, date pickers... on both Android and iOS)

✅ Control the color of the UIApplication Window (iOS) and the current Activity (Android) using AppBackground

✅ Recover the previously set theme upon app startup, and apply it before your app starts rendering

✅ Supports Expo via a config plugin

New Architecture supported

Additionally, provides functionality to control the appearance (background and border color, light / dark buttons) of the Android navbar.

The package is tested with RN >= 0.66.1 (last tested with RN 74, Expo 51). See RN version support.


Notice the color of scroll bar and keyboard in the screenshots below.

| light mode | dark mode | application background in modal | | ------------------------- | ----------------------- |------------------------------------| | light | dark | app background |


The use case for the package is explained in a youtube video.

In React Native, you can use the useColorScheme() hook, or other functions from the Appearance API to get information about the system theme.

Note: as of RN 72, the following paragraph isn't true anymore (there is setColorScheme now). However, RN does not maintain the selected color scheme across restarts and doesn't contain other goodies in this package.

Using that information, you can then render your Views in dark or light mode design. However, that information is read-only: you cannot influence what the useColorScheme() hook returns. What if you want to allow the user to choose the application theme? React Native core does not directly expose the APIs to do so.

You might follow one of the many blog posts for theming React Native apps such as here or here. The approach taken by the guides is to store the application theme in the JavaScript part of your app. However, this can easily leave your users with a broken experience because while the React Native views will be rendered correctly, the native views (Alert, Document picker, Date picker, Menu...) will not.

This package provides a solution to change the application theme so that both react native and native components use the same theme - see the relevant part of the video.


Installation and usage instructions can be found here.

The library api is documented in detail here.

More usage examples can be found in the example project.

This Package Was Sponsorware 💰💰💰

This package was only available to my GitHub Sponsors, but is now publicly available tweet.

Enjoy, and thanks for the support! ❤️

Sponsorware idea is not mine, learn more about Sponsorware at 💰.

I simply adopted it because making open source is a lot of fun but is not sustainable without compensation.


Some naming inspiration for the Android Navbar components was taken from react-native-bars.