探索React Native的图像选择神器：react-native-image-picker ✨

import React from 'react';
import { View, Button, Image, StyleSheet } from 'react-native';
import ImagePicker from 'react-native-image-picker';
 
export default class ImagePickerExample extends React.Component {
  state = {
    avatarSource: null,
  };
 
  pickImage = () => {
    ImagePicker.launchImageLibrary(
      {
        mediaType: 'photo',
        quality: 0.5,
      },
      (response) => {
        if (!response.didCancel) {
          this.setState({ avatarSource: { uri: response.uri } });
        }
      }
    );
  };
 
  render() {
    let { avatarSource } = this.state;
 
    return (
      <View style={styles.container}>
        <Button title="Pick an image" onPress={this.pickImage} />
        {avatarSource && <Image source={avatarSource} style={styles.avatar} />}
      </View>
    );
  }
}
 
const styles = StyleSheet.create({
  container: {
    flex: 1,
    justifyContent: 'center',
    alignItems: 'center',
  },
  avatar: {
    width: 150,
    height: 150,
    borderRadius: 75,
  },
});

这段代码展示了如何使用react-native-image-picker库来选择和显示图片。当用户点击按钮时，会打开图片库，用户选择图片后会自动显示在界面上的图像组件中。