网站的折线图怎么做目录型搜索引擎有哪些

选择头像使用react-native-image-crop-picker
保存本地用@react-native-community/async-storage
下载使用跟正常插件一样，0.6以上版本不需要手动link

选择头像并将头像信息传给存储方法：

import ImagePicker from 'react-native-image-crop-picker';ImagePicker.openPicker({width: 150,height: 200,cropping: true,cropperCircleOverlay: true,}).then(img => { //changeUserHeaderIcon 方法是父级组件传递的更改用户头像图片的方法//img.path就是图片的地址，不过asyncStorage只能存储字符串形式数据还是要转换成字符串this.props.changeUserHeaderIcon(JSON.stringify({uri: img.path}));});

本地存储

import AsyncStorage from '@react-native-community/async-storage';state = { // 默认的用户头像和默认的用户名userHeadIcon:require('../../assets/images/other/6.jpg'),userName:'Hello'}componentDidMount = () => {this._retrieveData('userName')this._retrieveData('userHeadIcon')}//更改用户名
changeUserName=(userName)=>{this._storeData('userName',userName)this._retrieveData('userName')}//更改用户头像 
changeUserHeaderIcon = (image) => {this._storeData('userHeadIcon',image)this._retrieveData('userHeadIcon')}
//存储AsyncStorage
_storeData = async (key,value) => {try {console.log(key)console.log(value)await AsyncStorage.setItem(key, value);}catch (error) {console.log(error)}}
//获取AsyncStorage中信息并更改用户信息_retrieveData = async (key) => { try {const value = await AsyncStorage.getItem(key);if (value !== null) {if(key == 'userName'){this.setState({userName:value})}else if(key== 'userHeadIcon'){this.setState({userHeadIcon:JSON.parse(value)})}}else{if(key == 'userName'){this.setState({userName:'Hello'})}else if(key== 'userHeadIcon'){this.setState({userHeadIcon:require('../../assets/images/other/6.jpg')})}}} catch (error) {console.log(error)}}
``