转载链接:http://www.ncloud.hk/%E6%8A%80%E6%9C%AF%E5%88%86%E4%BA%AB/react-native-open-source-components-react-native-wechat-learning/
由于最近工作的需要用到微信分享，于是我就找开源组件库(react-native-wechat),下面是具体的使用方法。
一、进入到项目的目录中执行如下命令:
$ npm install react-native-wechat --save
二、IOS:打开你的Xcode工程
2.1 从node_modules/react-native-wechat/ios中链接RCTWeChat到库文件中，不要忘记将它添加到"Buid Phases"中(如下图所示。注：具体的可以参考facebook官网的方法)
2.2 添加一下库文件（Build Phase->Link Binary With Libraries）：SystemConfiguration.framework，CoreTelephony.framework ，libsqlite3.0，libc++,libz
2.3添加app id （Targets->info->URL types）注：URL Schemes填写的是APP ID 需要去微信开发者平台注册。
2.4为了适配IOS9需要在LSApplicationQueriesSchemes (Target-info-Custom IOS Target Properties)添加微信为白名单。我们需要修改info.plist文件,
然后添加如下的代码:
LSApplicationQueriesSchemes weixin sinaweibohd sinaweibo sinaweibosso weibosdk weibosdk2.5 mqqapi mqq mqqOpensdkSSoLogin mqqconnect mqqopensdkdataline mqqopensdkgrouptribeshare mqqopensdkfriend mqqopensdkapi mqqopensdkapiV2 mqqopensdkapiV3 mqzoneopensdk wtloginmqq wtloginmqq2 mqqwpa mqzone mqzonev2 mqzoneshare wtloginqzone mqzonewx mqzoneopensdkapiV2 mqzoneopensdkapi19 mqzoneopensdkapi mqzoneopensdk alipay alipayshare
2.5因为需要使用LinkingIOS,还需要在AppDelegate.m中添加如下代码:
#import "../Libraries/LinkingIOS/RCTLinkingManager.h"@implementation AppDelegate- (BOOL)application:(UIApplication *)application openURL:(NSURL *)url sourceApplication:(NSString *)sourceApplication annotation:(id)annotation { return [RCTLinkingManager application:application openURL:url sourceApplication:sourceApplication annotation:annotation];} 三、API文档
3.1 registerApp(appid)
{string} appid 你的appid return {promise} 返回一个promise对象 3.2 registerAppWithDescription(appid,appdesc) ->仅支持IOS
{string} appid （同上） {String} appdesc 你的app的说明 return {promise} 3.3 isWXAppInstalled() 检查微信是否初始化
3.4 isWXAppSupportApi()检查微信是否支持url
3.5 getApiVersion() 获得微信SDK的版本
3.6 openWXApp() 打开微信app
3.7 sendAuthRequest([scope[,state]]) 发送默认请求，scope：登录时所申请的权限默认为get_simple_userinfo.需要
多个权限的时候以逗号分隔开。
3.8 shareToTimeline(data) 分享信息到朋友圈
{Object } data 包含以下发送信息
{string} thumbImage 可以是一个uri或者资源id
{string} type 信息的类型，可以是 {news|text|imageUrl|imageFile|imageResource|video|audio|file}
{string} webpageUrl 如果类型是news,分享一个网页链接
{string} imageUrl 如果类型是image,提供一个远程的图片链接
{string} videoUrl 如果类型是video,提供一个视频
{string} musicUrl 如果是audio,提供一个音乐
{string} filePath 提供本地文件
以下例子需要'react-native-wechat'和'react-native-fs'组件
import * as WeChat from 'react-native-wechat';import fs from 'react-native-fs';var resolveAssetSource = require('resolveAssetSource'); // along with Image component// Code example to share text message:try { var result = await WeChat.shareToTimeline({type: 'text', description: 'I\'m Wechat, :)'}); console.log('share text message to time line successful', result);}catch (e) { console.log('share text message to time line failed', e);}// Code example to share image url:// Share raw http(s) image from web will always fail with unknown reason, please use image file or image resource insteadtry { var result = await WeChat.shareToTimeline({ type: 'imageUrl', title: 'web image', description: 'share web image to time line', mediaTagName: 'email signature', messageAction: undefined, messageExt: undefined, imageUrl: 'http://www.ncloud.hk/email-signature-262x100.png' }); console.log('share image url to time line successful', result);}catch (e) { console.log('share image url to time line failed', e);}// Code example to share image file:try { var rootPath = fs.DocumentDirectoryPath; var savePath = rootPath + '/email-signature-262x100.png'; // like /var/mobile/Containers/Data/Application/B1308E13-35F1-41AB-A20D-3117BE8EE8FE/Documents/email-signature-262x100.png await fs.downloadFile('http://www.ncloud.hk/email-signature-262x100.png', savePath); var result = await WeChat.shareToTimeline({ type: 'imageFile', title: 'image file download from network', description: 'share image file to time line', mediaTagName: 'email signature', messageAction: undefined, messageExt: undefined, imageUrl: savePath }); console.log('share image file to time line successful', result);}catch (e) { console.log('share image file to time line failed', e);}// Code example to share image resource:try { var imageResource = require('./email-signature-262x100.png'); var result = await WeChat.shareToTimeline({ type: 'imageResource', title: 'resource image', description: 'share resource image to time line', mediaTagName: 'email signature', messageAction: undefined, messageExt: undefined, imageUrl: resolveAssetSource(imageResource).uri }); console.log('share resource image to time line successful', result);}catch (e) { console.log('share resource image to time line failed', e);} 3.9 shareToSession(data) 用法和shareToTimeline用法相似，发送信息给一个朋友或者群组
3.10 addListener(eventType,listener[,context]) 当事件触发时，会调用一个监听器，返回一个对象
3.11 once(eventType,listener[,context]) 用法和addListener相似
3.12 removeAllListener() 删除所有的注册监听器