如何使用React native显示搜索栏的边框线

npx react-native init YourProjectName

cd YourProjectName

import React from 'react';
import { View, TextInput } from 'react-native';

render() {
  return (
    <View style={styles.container}>
      <TextInput
        style={styles.searchBar}
        placeholder="Search"
      />
    </View>
  );
}

const styles = StyleSheet.create({
  container: {
    flex: 1,
    justifyContent: 'center',
    alignItems: 'center',
  },
  searchBar: {
    width: '80%',
    height: 40,
    borderWidth: 1,
    borderColor: 'gray',
    borderRadius: 5,
    paddingLeft: 10,
  },
});

npx react-native run-android

npx react-native run-ios