iOS微信好友分享 只能唤起微信，但是无法选择目标用户分享   WXMediaMessage *message = [WXMediaMessage message];     message.title = @"分享标题";     message.description = @"分享描述";     [message setThumbImage:[UIImage imageNamed:@"wx"]];          WXWebpageObject *webpageObject = [WXWebpageObject object];     webpageObject.webpageUrl = @"https://open.weixin.qq.com";     message.mediaObject = webpageObject;          SendMessageToWXReq *req = [[SendMessageToWXReq alloc] init];     req.bText = NO;     req.message = message;     // 微信好友     req.scene = WXSceneSession;     [WXApi sendReq:req completion:^(BOOL success) {         NSLog(@"");     }];