shareLocal封装了IOS系统原生的分享组件。
使用这个组件不需要集成微信、QQ等第三方服务的sdk,也不需要申请appke 只要按照下面的方法就可以调用
run npm install react-native-share-local --save
run react-native link react-native-share-local
Add the following line to your build targets in your Podfile
pod 'RNShareLocal', :path => '../node_modules/react-native-share-local'
Then run pod install
- In XCode, in the project navigator, right click 
Libraries➜Add Files to [your project's name] - add 
./node_modules/react-native-share-local/IOS/RNShareLocal.xcodeproj - In the XCode project navigator, select your project, select the 
Build Phasestab and in theLink Binary With Librariessection add libRNShareLocal.a 
- in android/app/build.gradle:
 
dependencies {
    ...
    compile "com.facebook.react:react-native:+"  // From node_modules
+   compile project(':react-native-share-local')
}- in 
android/settings.gradle: 
...
include ':app'
+ include ':react-native-share-local'
+ project(':react-native-share-local').projectDir = new File(rootProject.projectDir, '../node_modules/react-native-share-local/android')- in 
MainApplication.java: 
+ import com.kmlidc.RNShareLocal.RNShareLocal;
  public class MainApplication extends Application implements ReactApplication {
    //......
    @Override
    protected List<ReactPackage> getPackages() {
      return Arrays.<ReactPackage>asList(
+         new RNShareLocal(),
          new MainReactPackage()
      );
    }
    ......
  }- in 
MainActivity.java: 
+ import com.kmlidc.RNShareLocal.RNShareLocal;
  public class MainActivity extends ReactActivity {
    ......
    @Override
    protected List<ReactPackage> getPackages() {
      return Arrays.<ReactPackage>asList(
+       new RNShareLocal(),
        new MainReactPackage()
      );
    }
  }(Thanks to @chirag04 for writing the instructions)
- Open the solution in Visual Studio for your Windows apps
 - right click your in the Explorer and click Add > Existing Project...
 - Navigate to 
./<app-name>/node_modules/react-native-share-local/windows/RNShareLocaland addRNShareLocal.csproj - this time right click on your React Native Windows app under your solutions directory and click Add > Reference...
 - check the 
RNShareLocalyou just added and press ok - open up 
MainPage.csfor your app and edit the file like so: 
+ using RNShareLocal;
......
            get
            {
                return new List<IReactPackage>
                {
                    new MainReactPackage(),
+                   new RNShareLocalPackage(),
                };
            }(Thanks to @josephan for writing the instructions)
shareMessage(option)普通分享shareLink(option)分享网址sharePictures(option)分享多图
import {shareMessage,shareLink,sharePictures} from 'react-native-share-local'<Text style={styles.welcome} onPress={()=>{
  var option={
    text:"普通分享文字",
    image:"http://img.gemejo.com/product/8c/099/cf53b3a6008136ef0882197d5f5.jpg",
    callback:(error)=>{
      if(!error){
        alert("这是回调方法")
      }
    }
  };
  shareMessage(option);
}}>
  普通分享
</Text><Text style={styles.welcome} onPress={()=>{
  shareMessage({
    winTitle:"窗口标题",
    subject:"主题",
    text:"正文",
    component:["com.tencent.mobileqq","com.tencent.mobileqq.activity.JumpActivity"],
    callback:(error)=>{
      alert(error)
    }
  })
}}>
  普通分享
</Text><Text style={styles.welcome} onPress={()=>{
  var option={
    title:"分享网址标题",
    icon:"http://img.gemejo.com/product/8c/099/cf53b3a6008136ef0882197d5f5.jpg",
    link:"http://www.baidu.com",
    callback:(error)=>{
      if(!error){
        alert("这是回调方法")
      }
    }
  };
  shareLink(option);
}}>
  分享网址
</Text><Text style={styles.welcome} onPress={()=>{
  shareLink({
    winTitle:"窗口标题",
    subject:"主题",
    url:"http://www.baidu.com",
    component:["com.tencent.mobileqq","com.tencent.mobileqq.activity.JumpActivity"],
    callback:(error)=>{
      alert(error)
    }
  })
}}>
  分享连接地址
</Text>最多可分享九张图片,超过的不显示
<Text style={styles.welcome} onPress={()=>{
  var images = [
    "http://img.gemejo.com/product/8c/099/cf53b3a6008136ef0882197d5f5.jpg",
    "http://img.gemejo.com/product/45/1f0/f2f5067b718a01ef30abf738100.jpg"
  ];
  var option={
    imagesUrl:images,
    callback:(error)=>{
      if(!error){
        alert("这是回调方法")
      }
    }
  }
  sharePictures(option);
}}>
  分享多图
</Text><Text style={styles.welcome} onPress={()=>{
  sharePictures({
    winTitle:"窗口标题",
    subject:"主题",
    imagesUrl:[
      "http://img.gemejo.com/product/8c/099/cf53b3a6008136ef0882197d5f5.jpg",
      "http://img.gemejo.com/product/45/1f0/f2f5067b718a01ef30abf738100.jpg"
    ],
    text:"测试一下朋友圈分享",
    //component:["com.tencent.mobileqq","com.tencent.mobileqq.activity.JumpActivity"],
    component:["com.tencent.mm","com.tencent.mm.ui.tools.ShareToTimeLineUI"],
    callback:(error)=>{
      alert("success")
    }
  })
}}>
  分享多张图片
</Text>分享过程中如果有图片,会先下载完成图片之后再弹出分享菜单。建议增加网络加载图标,然后通过回调关闭加载图标。
excluded:[
       'UIActivityTypeMessage',
       'UIActivityTypePostToFacebook',
       'UIActivityTypePostToTwitter',
       'UIActivityTypePostToWeibo',
       'UIActivityTypeMail',
       'UIActivityTypePrint',
       'UIActivityTypeCopyToPasteboard',
       'UIActivityTypeAssignToContact',
       'UIActivityTypeSaveToCameraRoll',
       'UIActivityTypeAddToReadingList',
       'UIActivityTypePostToFlickr',
       'UIActivityTypePostToVimeo',
       'UIActivityTypePostToTencentWeibo',
       'UIActivityTypeAirDrop',
       'UIActivityTypeOpenInIBooks'
     ]