importReact,{Component}from'react';import{AppRegistry,StyleSheet,Text,View,PixelRatio,TouchableOpacity,Picker,}from'react-native';classhelloextendsComponent{constructor(props){super(props);this.state={language:null};}render(){return(<View style={{flex:1,marginTop:40}}><Picker selectedValue={this.stat...
npm install react-native-picker react-native link react-native-picker 然后就可以使用了,具体看文档 例如 import Picker from 'react-native-picker'; let data = []; for(var i=0;i<100;i++){ data.push(i); } Picker.init({ pickerData: data, selectedValue: [59], onPickerConfirm: data => ...
简述 在本章中,我们将创建具有两个可用选项的简单 Picker。 第 1 步:创建文件 在这里,App.js文件夹将用作展示组件。 app.js import React from 'react' import PickerExample from './PickerExample.js' ...
第一步: 装依赖,把react-native-picker的依赖放在src/node_modules里面 在 package.json里面引入 "react-native-picker": "file:./src/node_modules/react-native-picker", 说明:src/node_modules是自己在src 里面创建的node_m... React Native - 使用图片选择器react-native-image-picker拍照、选照片 ...
This package is built around and depends on @react-native-picker/picker. Please make sure you install it correctly (as seen below in installation steps).npm install react-native-picker-select # React Native users npm install @react-native-picker/picker npx pod-install # Expo expo install @...
在rn 中使用react-native-picker选择器,总结如下。 一、下载 npm install react-native-picker --save react-native link 二、安卓端配置 1.文件./android/settings.gradle中末尾添加 include ':react-native-picker' project(':react-native-picker').projectDir = new File(rootProject.projectDir, '../node_...
Picker实例 来看看实例演示的效果图,如下: 实例代码 代码语言:javascript 代码运行次数:0 运行 AI代码解释 importReact,{Component}from'react';import{AppRegistry,StyleSheet,Picker,Text,View}from'react-native';exportdefaultclassPickerDemoextendsComponent{state={selected:' ',dropdown:' ',}render(){return(<Vi...
一、依赖安装 依赖react-native-camera yarnaddreact-native-image-pickerreact-nativelinkreact-native-image-picker 二、调用相机 import { launchCamera } from 'react-native-image-picker'; launchCamera({ mediaType: 'photo', maxWidth: 1000,// 设置选择照片的大小,设置小的话会相应的进行压缩 ...
npm install react-native-picker--save Step 2 - link react-native link Step 3 - import and use in project importPickerfrom'react-native-picker'; letdata=[]; for(vari=0;i<100;i++){ data.push(i); } Picker.init({ pickerData:data, ...
React Native 图片选择器 react-native-image-picker 问题：在个人界面，头像选择弹出一个 alerView，并且实现跳转相机或相册然后选择图片回调等，如果自己实现会很麻烦而且耗时，这里我们使用第三方 react-native-image-picker 是一个不错的选择。解决：首先安装 npm install react-native-image-picker@latest --save ...