feat 添加分享本地图片的方法，修改 ios 配置文档

README.md

@@ -152,6 +152,33 @@ WeChat.shareImage({
 
 ```
 
+#### ShareLocalImage(ShareImageMetadata) 分享图片
+
+ShareImageMetadata
+
+| name    | type   | description                         |
+|---------|--------|-------------------------------------|
+| imageUrl| String | 图片地址                          |
+| scene   | Number | 分享到, 0:会话 2:朋友圈 3:收藏 |
+
+Return:
+
+| name    | type   | description                         |
+|---------|--------|-------------------------------------|
+| errCode | Number | 0 if authorization successed        |
+| errStr  | String | Error message if any error occurred |
+
+
+```js
+import * as WeChat from 'react-native-wechat-lib';
+
+WeChat.ShareLocalImage({
+  imageUrl: '/sdcard/test.png',
+  scene: 0
+})
+
+```
+
 #### ShareMusic(ShareMusicMetadata) 分享音乐
 
 ShareMusicMetadata

android/src/main/java/com/theweflex/react/WeChatModule.java

@@ -239,6 +239,33 @@ public class WeChatModule extends ReactContextBaseJavaModule implements IWXAPIEv
 
     }
 
+    /**
+     * 分享本地图片
+     * @param data
+     * @param callback
+     */
+    @ReactMethod
+    public void shareLocalImage(final ReadableMap data, final Callback callback) {
+        FileInputStream fs = new FileInputStream(data.getString("imageUrl"));
+        Bitmap bmp  = BitmapFactory.decodeStream(fs);
+        // 初始化 WXImageObject 和 WXMediaMessage 对象
+        WXImageObject imgObj = new WXImageObject(bmp);
+        WXMediaMessage msg = new WXMediaMessage();
+        msg.mediaObject = imgObj;
+
+        // 设置缩略图
+        msg.thumbData = bitmapResizeGetBytes(bmp, THUMB_SIZE);
+
+        // 构造一个Req
+        SendMessageToWX.Req req = new SendMessageToWX.Req();
+        req.transaction = "img";
+        req.message = msg;
+        // req.userOpenId = getOpenId();
+        req.scene = data.hasKey("scene") ? data.getInt("scene") : SendMessageToWX.Req.WXSceneSession;
+        callback.invoke(null, api.sendReq(req));
+
+    }
+
     /**
      * 分享音乐
      * @param data

docs/build-setup-ios.md

@@ -12,7 +12,7 @@
 Add "URL Schema" as your app id for "URL type" in Targets > info, See 
 the following screenshot for the view on your XCode:
 
-![Set URL Schema in XCode](https://i.loli.net/2019/08/31/yUD2F5MrPKjngo3.jpg)
+![Set URL Schema in XCode](./../image/url-types.png)
 
 Cannot go back to APP from WeChat without configuration.  
 如果不配置，就无法从微信重新回到APP。    
@@ -27,6 +27,7 @@ then add:
 <array>
   <string>weixin</string>
   <string>wechat</string>
+  <string>weixinULAPI</string>
 </array>
 ```
 If not configured, apple will prevent you from jumping to WeChat due to security permissions.  

index.d.ts

@@ -118,6 +118,9 @@ declare module "react-native-wechat-lib" {
   export function shareImage(
     message: ShareImageMetadata
   ): Promise<{ errCode?: number; errStr?: string }>;
+  export function shareLocalImage(
+    message: ShareImageMetadata
+  ): Promise<{ errCode?: number; errStr?: string }>;
   export function shareMusic(
     message: ShareMusicMetadata
   ): Promise<{ errCode?: number; errStr?: string }>;

index.js

@@ -151,6 +151,7 @@ const nativeShareToFavorite = wrapApi(WeChat.shareToFavorite);
 const nativeSendAuthRequest = wrapApi(WeChat.sendAuthRequest);
 const nativeShareText = wrapApi(WeChat.shareText);
 const nativeShareImage = wrapApi(WeChat.shareImage);
+const nativeShareLocalImage = wrapApi(WeChat.shareLocalImage);
 const nativeShareMusic = wrapApi(WeChat.shareMusic);
 const nativeShareVideo = wrapApi(WeChat.shareVideo);
 const nativeShareWebpage = wrapApi(WeChat.shareWebpage);
@@ -211,6 +212,24 @@ export function shareImage(data) {
   });
 }
 
+/**
+ * Share local image
+ * @method shareLocalImage
+ * @param {Object} data
+ */
+export function shareLocalImage(data) {
+  return new Promise((resolve, reject) => {
+    nativeShareLocalImage(data);
+    emitter.once('SendMessageToWX.Resp', resp => {
+      if (resp.errCode === 0) {
+        resolve(resp);
+      } else {
+        reject(new WechatError(resp));
+      }
+    });
+  });
+}
+
 /**
  * Share music
  * @method shareMusic

ios/RCTWeChat.m

@@ -284,6 +284,51 @@ RCT_EXPORT_METHOD(shareImage:(NSDictionary *)data
     [WXApi sendReq:req completion:completion];
 }
 
+// 分享本地图片
+RCT_EXPORT_METHOD(shareLocalImage:(NSDictionary *)data
+                  :(RCTResponseSenderBlock)callback)
+{
+    NSString *imageUrl = data[@"imageUrl"];
+    if (imageUrl == NULL  || [imageUrl isEqual:@""]) {
+        callback([NSArray arrayWithObject:@"shareLocalImage: The value of ImageUrl cannot be empty."]);
+        return;
+    }
+    NSRange range = [imageUrl rangeOfString:@"."];
+    if ( range.length == 0)
+    {
+        callback([NSArray arrayWithObject:@"shareLocalImage: ImageUrl value, Could not find file suffix."]);
+        return;
+    }
+    
+    // 根据路径下载图片
+    UIImage *image = [UIImage imageWithContentsOfFile:imageUrl];
+    // 从 UIImage 获取图片数据
+    NSData *imageData = UIImageJPEGRepresentation(image, 1);
+    // 用图片数据构建 WXImageObject 对象
+    WXImageObject *imageObject = [WXImageObject object];
+    imageObject.imageData = imageData;
+    
+    WXMediaMessage *message = [WXMediaMessage message];
+    // 利用原图压缩出缩略图，确保缩略图大小不大于32KB
+    message.thumbData = [self compressImage: image toByte:32678];
+    message.mediaObject = imageObject;
+    message.title = data[@"title"];
+    message.description = data[@"description"];
+
+    SendMessageToWXReq *req = [[SendMessageToWXReq alloc] init];
+    req.bText = NO;
+    req.message = message;
+    req.scene = data[@"scene"] || WXSceneSession;
+    //    [WXApi sendReq:req];
+    void ( ^ completion )( BOOL );
+    completion = ^( BOOL success )
+    {
+        callback(@[success ? [NSNull null] : INVOKE_FAILED]);
+        return;
+    };
+    [WXApi sendReq:req completion:completion];
+}
+
 // 分享音乐
 RCT_EXPORT_METHOD(shareMusic:(NSDictionary *)data
                   :(RCTResponseSenderBlock)callback)

package.json

@@ -1,6 +1,6 @@
 {
   "name": "react-native-wechat-lib",
-  "version": "1.1.2",
+  "version": "1.1.3",
   "description": "react-native library for wechat app. 支持分享和拉起小程序。",
   "main": "index.js",
   "scripts": {