Expo 玻璃效果

使用 iOS 原生 UIVisualEffectView 渲染液态玻璃效果的 React 组件。

iOS

tvOS

Included in Expo Go

GitHub

npm

更新日志

Recommended version:

~57.0.0

重要 GlassView 仅适用于 iOS 26 及以上版本。在不受支持的平台上，它会回退为普通 View。

使用 UIVisualEffectView 渲染原生 iOS 液态玻璃效果的 React 组件。支持可自定义的玻璃样式和色调颜色。

已知问题

将 GlassView 或其任何父视图的 opacity 设置为 0 会导致玻璃效果完全无法渲染。若要让玻璃效果淡入/淡出，请在 glassEffectStyle 中使用内置的 animate 和 animationDuration 属性，而不是更改 opacity。若你仍然想使用 opacity，请参见 opacity 动画变通方案示例。更多详情请参阅 Apple 的文档和 GitHub issue #41024。

安装

Terminal

- npx expo install expo-glass-effect

If you are installing this in an existing React Native app, make sure to install expo in your project.

用法

`GlassView`

GlassView 组件用于渲染原生 iOS 玻璃效果。它支持不同的玻璃效果样式，并可通过色调颜色进行自定义，以满足各种美学需求。

GlassView 基础用法

import { StyleSheet, View, Image } from 'react-native';
import { GlassView } from 'expo-glass-effect';

export default function App() {
  return (
    <View style={styles.container}>
      <Image
        style={styles.backgroundImage}
        source={{
          uri: 'https://images.unsplash.com/photo-1506905925346-21bda4d32df4?w=400&h=400&fit=crop',
        }}
      />

      {/* 基础玻璃视图 */}
      <GlassView style={styles.glassView} />

      {/* 带透明样式的玻璃视图 */}
      <GlassView style={styles.tintedGlassView} glassEffectStyle="clear" />
    </View>
  );
}

const styles = StyleSheet.create({
  container: {
    flex: 1,
  },
  backgroundImage: {
    ...StyleSheet.absoluteFill,
    width: '100%',
    height: '100%',
  },
  glassView: {
    position: 'absolute',
    top: 100,
    left: 50,
    width: 200,
    height: 100,
    borderRadius: 12,
    justifyContent: 'center',
    alignItems: 'center',
    padding: 20,
  },
  tintedGlassView: {
    position: 'absolute',
    top: 250,
    left: 50,
    width: 200,
    height: 100,
    borderRadius: 12,
    justifyContent: 'center',
    alignItems: 'center',
    padding: 20,
  },
  text: {
    fontSize: 16,
    fontWeight: '600',
    color: '#000',
    textAlign: 'center',
  },
});

`GlassContainer`

GlassContainer 组件允许你将多个玻璃视图组合成一个整体效果。

GlassContainer 示例

import { StyleSheet, View, Image } from 'react-native';
import { GlassView, GlassContainer } from 'expo-glass-effect';

export default function GlassContainerDemo() {
  return (
    <View style={styles.container}>
      <Image
        style={styles.backgroundImage}
        source={{
          uri: 'https://images.unsplash.com/photo-1547036967-23d11aacaee0?w=400&h=600&fit=crop',
        }}
      />
      <GlassContainer spacing={10} style={styles.containerStyle}>
        <GlassView style={styles.glass1} isInteractive />
        <GlassView style={styles.glass2} />
        <GlassView style={styles.glass3} />
      </GlassContainer>
    </View>
  );
}

const styles = StyleSheet.create({
  container: {
    flex: 1,
  },
  backgroundImage: {
    ...StyleSheet.absoluteFill,
    width: '100%',
    height: '100%',
  },
  containerStyle: {
    position: 'absolute',
    top: 200,
    left: 50,
    width: 250,
    height: 100,
    flexDirection: 'row',
    alignItems: 'center',
    gap: 5,
  },
  glass1: {
    width: 60,
    height: 60,
    borderRadius: 30,
  },
  glass2: {
    width: 50,
    height: 50,
    borderRadius: 25,
  },
  glass3: {
    width: 40,
    height: 40,
    borderRadius: 20,
  },
});

动画玻璃效果样式

glassEffectStyle 属性接受一个包含 animate 和 animationDuration 属性的配置对象，可在不同玻璃样式之间原生地为过渡添加动画。这是实现玻璃效果淡入/淡出的推荐方式，无需修改 opacity。

动画玻璃效果样式

import { useState } from 'react';
import { StyleSheet, Text, View, Image, Pressable } from 'react-native';
import { GlassView } from 'expo-glass-effect';

export default function AnimatedGlassStyleExample() {
  const [visible, setVisible] = useState(true);

  return (
    <View style={styles.container}>
      <View style={styles.backgroundImage}>
        <Image
          style={{
            width: 300,
            height: 200,
          }}
          source={{
            uri: 'https://images.unsplash.com/photo-1506905925346-21bda4d32df4?w=400&h=400&fit=crop',
          }}
        />
        <GlassView
          style={styles.glassView}
          glassEffectStyle={{
            style: visible ? 'clear' : 'none',
            animate: true,
            animationDuration: 0.5,
          }}
        />
      </View>
      <Pressable style={styles.toggleButton} onPress={() => setVisible(prev => !prev)}>
        <Text style={styles.toggleButtonText}>{visible ? '隐藏' : '显示'}玻璃效果</Text>
      </Pressable>
    </View>
  );
}

const styles = StyleSheet.create({
  container: {
    height: 300,
    width: 300,
  },
  backgroundImage: {
    position: 'absolute',
  },
  glassView: {
    position: 'absolute',
    width: 200,
    height: 120,
    borderRadius: 12,
  },
  toggleButton: {
    position: 'absolute',
    bottom: 100,
    alignSelf: 'center',
    backgroundColor: '#007AFF',
    paddingVertical: 14,
    paddingHorizontal: 24,
    borderRadius: 12,
  },
  toggleButtonText: {
    color: '#fff',
    fontSize: 16,
    fontWeight: '600',
  },
});

透明度动画替代方案

由于将 GlassView 或其父视图的 opacity 设为 0 会导致玻璃效果完全不渲染，你可以使用 Reanimated 来动画化包装视图的透明度，同时在所需样式与 'none' 之间切换 glassEffectStyle。

玻璃效果透明度动画替代方案

import { GlassView } from 'expo-glass-effect';
import { StyleSheet, Text, View, Image, Pressable } from 'react-native';
import Animated, {
  useAnimatedProps,
  useAnimatedStyle,
  useSharedValue,
  withTiming,
} from 'react-native-reanimated';

const AnimatedGlassView = Animated.createAnimatedComponent(GlassView);

export default function GlassOpacityAnimationExample() {
  const fadeOpacity = useSharedValue(0);

  const glassViewProps = useAnimatedProps(() => {
    const glassEffectStyle = fadeOpacity.value > 0.01 ? 'regular' : 'none';
    return {
      glassEffectStyle,
      style: {
        width: 150,
        height: 100,
        borderRadius: 12,
        position: 'absolute',
      },
    };
  });

  const fadeOpacityStyle = useAnimatedStyle(() => ({
    position: 'absolute',
    opacity: fadeOpacity.value,
    width: 150,
    height: 100,
    borderRadius: 12,
  }));

  return (
    <>
      <Text style={styles.title}>透明度动画替代方案（iOS 26.1+）</Text>
      <View style={styles.backgroundContainer}>
        <Image
          style={styles.backgroundImage}
          source={{
            uri: 'https://images.unsplash.com/photo-1506905925346-21bda4d32df4?w=400&h=400&fit=crop',
          }}
        />
        <Animated.View style={fadeOpacityStyle}>
          <AnimatedGlassView animatedProps={glassViewProps} />
        </Animated.View>
      </View>

      <Pressable
        style={styles.toggleButton}
        onPress={() => {
          fadeOpacity.value = withTiming(fadeOpacity.value > 0.5 ? 0 : 1, { duration: 500 });
        }}>
        <Text style={styles.toggleButtonText}>Toggle glass visibility</Text>
      </Pressable>
    </>
  );
}

const styles = StyleSheet.create({
  title: {
    fontSize: 20,
    fontWeight: 'bold',
  },
  backgroundContainer: {
    height: 300,
    borderRadius: 12,
    overflow: 'hidden',
    position: 'relative',
  },
  backgroundImage: {
    width: '100%',
    height: '100%',
  },
  toggleButton: {
    backgroundColor: '#007AFF',
    paddingVertical: 14,
    paddingHorizontal: 24,
    borderRadius: 12,
    alignItems: 'center',
  },
  toggleButtonText: {
    color: '#fff',
    fontSize: 16,
    fontWeight: '600',
  },
});

`isLiquidGlassAvailable`

isLiquidGlassAvailable 函数可用于检查编译后的应用中是否可用 Liquid Glass 效果。它会验证系统和编译器版本，以及 Info.plist 设置。

import { isLiquidGlassAvailable } from 'expo-glass-effect';

export default function CheckLiquidGlass() {
  return (
    <Text>
      {isLiquidGlassAvailable()
        ? 'Liquid Glass 效果可用'
        : 'Liquid Glass 效果不可用'}
    </Text>
  );
}

`isGlassEffectAPIAvailable`

isGlassEffectAPIAvailable 函数用于检查设备运行时是否可用 Liquid Glass API。

警告添加此 API 的原因是某些 iOS 26 测试版中没有可用的 Liquid Glass API，这可能导致崩溃。在应用中使用 GlassView 之前，你应该先进行检查，以确保兼容性。更多信息请参见 GitHub issue #40911。

import { isGlassEffectAPIAvailable } from 'expo-glass-effect';

export default function CheckGlassEffectAPI() {
  return (
    <Text>
      {isGlassEffectAPIAvailable()
        ? 'Glass Effect API 可用'
        : 'Glass Effect API 不可用'}
    </Text>
  );
}

API

import {
  GlassView,
  GlassContainer,
  isLiquidGlassAvailable,
  isGlassEffectAPIAvailable,
} from 'expo-glass-effect';

Components

`GlassContainer`

Type: React.Element<GlassContainerProps>

GlassContainerProps

`ref`

Optional • Type: Ref<View>

`spacing`

Optional • Type: number • Default: undefined

The distance at which glass elements start affecting each other. Controls when glass elements begin to merge together.

Inherited props

ViewProps

`GlassView`

Type: React.Element<GlassViewProps>

GlassViewProps

`colorScheme`

Optional • Type: GlassColorScheme • Default: 'auto'

The color scheme for the glass effect appearance. Use this to override the system appearance when your app has its own theme toggle.

`glassEffectStyle`

Optional • Literal type: union • Default: 'regular'

Glass effect style to apply to the view. Can be a simple string ('clear', 'regular', 'none') or a config object for controlling animation behavior.

Acceptable values are: GlassStyle | GlassEffectStyleConfig

`isInteractive`

Optional • Type: boolean • Default: false

Whether the glass effect should be interactive.

`ref`

Optional • Type: Ref<View>

`tintColor`

Optional • Type: string

Tint color to apply to the glass effect.

Inherited props

ViewProps

Methods

`isGlassEffectAPIAvailable()`

Only for:

iOS

Checks whether the Liquid Glass API is available at runtime on the device.

This method was added because some iOS 26 beta versions do not have this API available, which can lead to crashes. You should check this before using GlassView and GlassContainer in your app to ensure compatibility.

Returns:

boolean

See: https://github.com/expo/expo/issues/40911

`isLiquidGlassAvailable()`

Indicates whether the app is using the Liquid Glass design. The value will be true when the Liquid Glass components are available in the app.

This only checks for component availability. The value may also be true if the user has enabled accessibility settings that limit the Liquid Glass effect. To check if the user has disabled the Liquid Glass effect via accessibility settings, use AccessibilityInfo.isReduceTransparencyEnabled().

Returns:

boolean

Types

`GlassColorScheme`

Literal type: string

Acceptable values are: 'auto' | 'light' | 'dark'

`GlassEffectStyleConfig`

Property	Type	Description
animate(optional)	`boolean`	Whether to animate the style change. Default:`false`
animationDuration(optional)	`number`	Duration of the animation in seconds. Uses system default if not specified.
style	`GlassStyle`	The glass effect style to apply.

`GlassStyle`

Literal type: string

Acceptable values are: 'clear' | 'regular' | 'none'