swift分享到微信

1. 申请微信开发平台AppId
   地址：open.weixin.qq.com

2. 下载微信终端sdk文件
   包括以下文件：
   

3. 将sdk文件导入到工程
   

4.微信开放平台新增了微信模块用户统计功能，便于开发者统计微信功能模块的用户使用和活跃情况。开发者需要在工程中链接上:SystemConfiguration.framework,libz.dylib,libsqlite3.0.dylib,libc++.dylib
Build Settings->All->Linking

Build Phases, 增加framework，CoreTelephony和SystemConfiguration

5.桥接头文件
方法同：http://blog.csdn.net/tujiaw/article/details/47048343
Objective-CBridgingHeader.h内容如下，CommonCrypto/CommonHMAC.h可以忽略，@import UIKit;包括这个分号不可少！

6.添加微信sdk目录，我的默认就添加了。
Build Settings -> All -> SearchPaths

7.在Xcode中，选择你的工程设置项，选中“TARGETS”一栏，在“info”标签栏的“URL type“添加“URL scheme”为你所注册的应用程序id（如下图所示）。

8.注册AppId

9.分享简单文字

10.分享文章到朋友，朋友圈以及收藏

    @IBAction func onShare(sender: UIBarButtonItem) {        let sheet = UIAlertController(title: "文章 ", message: "分享到微信", preferredStyle: .ActionSheet)        let cancelAction = UIAlertAction(title: "取消", style: .Cancel, handler: {(action) -> Void in            print("cancel share")        })        let shareToFriend = UIAlertAction(title: "好朋友", style: .Destructive, handler: {(action) -> Void in            self.shareToWChat(WXSceneSession)        })        let shareToGroupsFriends = UIAlertAction(title: "朋友圈", style: .Destructive, handler: {(action) -> Void in            self.shareToWChat(WXSceneTimeline)        })        let favorite = UIAlertAction(title: "收藏", style: .Default, handler: {(action) -> Void in            self.shareToWChat(WXSceneFavorite)        })        sheet.addAction(cancelAction)        sheet.addAction(shareToFriend)        sheet.addAction(shareToGroupsFriends)        sheet.addAction(favorite)        self.presentViewController(sheet, animated: true, completion: {() -> Void in            print("present over")        })    }    func shareToWChat(scene: WXScene) {        let page = WXWebpageObject()        page.webpageUrl = content.url        let msg = WXMediaMessage()        msg.mediaObject = page        msg.title = (scene == WXSceneTimeline ? content.title : content.userName)        msg.description = content.title        switch dataType {        case .GoodArticle:            msg.setThumbImage(Data.sharedManager.goodArticle.imagedic[content.contentImg])        case .SearchArticle:            msg.setThumbImage(Data.sharedManager.searchArticle.imagedic[content.contentImg])        default:            print("data type error")        }        let req = SendMessageToWXReq()        req.message = msg        req.scene = Int32(scene.rawValue)        WXApi.sendReq(req)    }

调试的时候必须装有微信才行！！！
github地址