Expo Config Plugin: Android Styles Modifier


An Expo Config Plugin to programmatically modify the native Android styles.xml file during the prebuild process.

Installation

``bash
npm install expo-config-plugin-android-styles


or


yarn add expo-config-plugin-android-styles
`

Problem

Sometimes you need to customize native Android theme attributes that aren't directly exposed via React Native component props or standard Expo config options. Manually editing files in the android directory is discouraged in Expo managed projects.

Common examples include:

- Changing the accent color of native dialogs like the DatePicker or TimePicker.
- Setting a default android:windowBackground.
- Overriding specific theme items for AppTheme or other styles.

Solution

This config plugin uses Expo's withAndroidStyles modifier to safely add or modify tags within specified