expo-glow

An Expo module that brings HDR glow effects to React Native components. This module is a wrapper around the GlowGetter Swift package by @Aeastr.

🎯 Features

• Apply HDR glow effects to any React Native component
• Simple <Glow> wrapper component with adjustable intensity
• Works on HDR-capable displays (iPhone 14 Pro+, recent iPads with ProMotion)
• Web fallback using CSS filters

⚠️ Important Notice

This module uses private Apple APIs (specifically CAFilter) to achieve the HDR glow effect. While the API strings are obfuscated using Base64 encoding, there is still a risk of App Store rejection. Use at your own discretion.

📦 Installation

npm install expo-glow
# or
yarn add expo-glow

🚀 Usage

import { Glow } from "expo-glow";

export default function App() {
  return (
    <Glow intensity={2.0}>
      <View style={styles.content}>
        <Text>This content will glow! ✨</Text>
      </View>
    </Glow>
  );
}

Props

• intensity (number, default: 0): The glow intensity multiplier. Values typically range from 0-10, with higher values creating stronger HDR effects.
• style: Standard React Native view styles
• children: React components to apply the glow effect to

🖥️ Platform Support

• iOS: Full HDR glow effect on compatible devices
• Web: Fallback using CSS brightness filter
• Android: Not currently supported

🙏 Credits

This module wouldn't exist without:

• GlowGetter by @Aeastr - The original Swift implementation that made this possible
• @sebjvidal - For the CAFilter implementation approach

👥 Contributors

• @Aeastr - Original GlowGetter implementation
• Claude (Anthropic) - Expo module adaptation

📄 License

MIT License - see LICENSE file for details