react-native-masked-view

import React from 'react';
import { Text, View } from 'react-native';
import MaskedView from '@amazon-devices/react-native-masked-view__masked-view';

const App = () => {
  return (
    <MaskedView
      style={{ flex: 1, flexDirection: 'row', height: '100%' }}
      maskElement={
        <View
          style={{
            // 透明背景，因为蒙版基于alpha通道。
            backgroundColor: 'transparent',
            flex: 1,
            justifyContent: 'center',
            alignItems: 'center',
          }}
        >
          <Text
            style={{
              fontSize: 60,
              color: 'black',
              fontWeight: 'bold',
            }}
          >
            Basic Mask
          </Text>
        </View>
      }
    >
      {/* 显示在蒙版后面，您可以在此处放置任何内容，比如图像 */}
      <View style={{ flex: 1, height: '100%', backgroundColor: '#324376' }} />
      <View style={{ flex: 1, height: '100%', backgroundColor: '#F5DD90' }} />
      <View style={{ flex: 1, height: '100%', backgroundColor: '#F76C5E' }} />
      <View style={{ flex: 1, height: '100%', backgroundColor: '#e1e1e1' }} />
    </MaskedView>
  );
}

export default App