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Expo BlurView iconExpo BlurView

GitHub

npm

A React component that blurs everything underneath the view.

Android
iOS
tvOS
Web

A React component that blurs everything underneath the view. Common usage of this is for navigation bars, tab bars, and modals.

BlurView on Android is an experimental feature. To enable it use the experimentalBlurMethod prop.

Known issues

The blur effect does not update when BlurView is rendered before dynamic content is rendered using, for example, FlatList. To fix this, make sure that BlurView is rendered after the dynamic content component. For example:

<View>
  <FlatList />
  <BlurView />
</View>

Installation

Terminal
- npx expo install expo-blur

If you are installing this in an existing React Native app, start by installing expo in your project. Then, follow the additional instructions as mentioned by the library's README under "Installation in bare React Native projects" section.

Usage

Basic BlurView usage
import { Text, StyleSheet, View, SafeAreaView } from 'react-native';
import { BlurView } from 'expo-blur';

export default function App() {
  const text = 'Hello, my container is blurring contents underneath!';
  return (
    <SafeAreaView style={styles.container}>
      <View style={styles.background}>
        {[...Array(20).keys()].map(i => (
          <View
            key={`box-${i}`}
            style={[styles.box, i % 2 === 1 ? styles.boxOdd : styles.boxEven]}
          />
        ))}
      </View>
      <BlurView intensity={100} style={styles.blurContainer}>
        <Text style={styles.text}>{text}</Text>
      </BlurView>
      <BlurView intensity={80} tint="light" style={styles.blurContainer}>
        <Text style={styles.text}>{text}</Text>
      </BlurView>
      <BlurView intensity={90} tint="dark" style={styles.blurContainer}>
        <Text style={[styles.text, { color: '#fff' }]}>{text}</Text>
      </BlurView>
    </SafeAreaView>
  );
}

const styles = StyleSheet.create({
  container: {
    flex: 1,
  },
  blurContainer: {
    flex: 1,
    padding: 20,
    margin: 16,
    textAlign: 'center',
    justifyContent: 'center',
    overflow: 'hidden',
    borderRadius: 20,
  },
  background: {
    flex: 1,
    flexWrap: 'wrap',
    ...StyleSheet.absoluteFill,
  },
  box: {
    width: '25%',
    height: '20%',
  },
  boxEven: {
    backgroundColor: 'orangered',
  },
  boxOdd: {
    backgroundColor: 'gold',
  },
  text: {
    fontSize: 24,
    fontWeight: '600',
  },
});

API

import { BlurView } from 'expo-blur';

Component

BlurView

Android
iOS
tvOS
Web

Type: React.Component<BlurViewProps>

BlurViewProps

blurReductionFactor

Android
Optional • Type: number • Default: 4

A number by which the blur intensity will be divided on Android.

When using experimental blur methods on Android, the perceived blur intensity might differ from iOS at different intensity levels. This property can be used to fine tune it on Android to match it more closely with iOS.

experimentalBlurMethod

Android
Optional • Type: ExperimentalBlurMethod • Default: 'none'

Blur method to use on Android.

Currently, BlurView support is experimental on Android and may cause performance and graphical issues. It can be enabled by setting this property.

intensity

Android
iOS
tvOS
Web
Optional • Type: number • Default: 50

A number from 1 to 100 to control the intensity of the blur effect.

You can animate this property using react-native-reanimated.

tint

Android
iOS
tvOS
Web
Optional • Type: BlurTint • Default: 'default'

A tint mode which will be applied to the view.

Inherited Props

Types

BlurTint

Android
iOS
tvOS
Web

Literal Type: string

Acceptable values are: 'light' | 'dark' | 'default' | 'extraLight' | 'regular' | 'prominent' | 'systemUltraThinMaterial' | 'systemThinMaterial' | 'systemMaterial' | 'systemThickMaterial' | 'systemChromeMaterial' | 'systemUltraThinMaterialLight' | 'systemThinMaterialLight' | 'systemMaterialLight' | 'systemThickMaterialLight' | 'systemChromeMaterialLight' | 'systemUltraThinMaterialDark' | 'systemThinMaterialDark' | 'systemMaterialDark' | 'systemThickMaterialDark' | 'systemChromeMaterialDark'

ExperimentalBlurMethod

Android

Literal Type: string

Blur method to use on Android.

  • 'none' - Falls back to a semi-transparent view instead of rendering a blur effect.

  • 'dimezisBlurView' - Uses a native blur view implementation based on BlurView library. This method may lead to decreased performance and rendering issues during transitions made by react-native-screens.

Acceptable values are: 'none' | 'dimezisBlurView'

Using borderRadius with BlurView

When using BlurView on Android and iOS, the borderRadius property is not applied when provided explicitly. To fix this, you can use the overflow: 'hidden' style since BlurView inherits props from <View>. See Usage for an example.