Android(安卓)微信分享，分享到朋友圈与分享到好友，以及微信登陆

extends：http://www.cnblogs.com/android100/p/Android-qq.html

一、申请你的AppID

http://open.weixin.qq.com/

友情提示：推荐使用eclipse打包软件最后一步的MD5值去申请AppID

二、官网下载libammsdk.jar包

http://open.weixin.qq.com/download/?lang=zh_CN

三、将libammsdk.jar复制到工程的libs目录

四、在需要分享的Activity编写代码

private IWXAPI wxApi;  //实例化  wxApi = WXAPIFactory.createWXAPI(this, Constants.WX_APP_ID);  wxApi.registerApp(Constants.WX_APP_ID);  /**  * 微信分享 （这里仅提供一个分享网页的示例，其它请参看官网示例代码）  * @param flag(0:分享到微信好友，1：分享到微信朋友圈)  */  private void wechatShare(int flag){      WXWebpageObject webpage = new WXWebpageObject();      webpage.webpageUrl = "这里填写链接url";      WXMediaMessage msg = new WXMediaMessage(webpage);      msg.title = "这里填写标题";      msg.description = "这里填写内容";      //这里替换一张自己工程里的图片资源      Bitmap thumb = BitmapFactory.decodeResource(getResources(), R.drawable.share_logo);      msg.setThumbImage(thumb);            SendMessageToWX.Req req = new SendMessageToWX.Req();      req.transaction = String.valueOf(System.currentTimeMillis());      req.message = msg;      req.scene = flag==0?SendMessageToWX.Req.WXSceneSession:SendMessageToWX.Req.WXSceneTimeline;      wxApi.sendReq(req);  }  //在需要分享的地方添加代码：  wechatShare(0);//分享到微信好友  wechatShare(1);//分享到微信朋友圈

五、在你的包名相应目录下新建一个wxapi目录，并在该wxapi目录下新增一个WXEntryActivity类，该类继承自Activity，实现IWXAPIEventHandler接口

/** 微信客户端回调activity示例 */  public class WXEntryActivity extends Activity implements IWXAPIEventHandler {      // IWXAPI 是第三方app和微信通信的openapi接口      private IWXAPI api;      @Override      protected void onCreate(Bundle savedInstanceState) {          api = WXAPIFactory.createWXAPI(this, "这里替换第一步申请的APP_ID", false);          api.handleIntent(getIntent(), this);          super.onCreate(savedInstanceState);      }      @Override      public void onReq(BaseReq arg0) { }        @Override      public void onResp(BaseResp resp) {          LogManager.show(TAG, "resp.errCode:" + resp.errCode + ",resp.errStr:"                  + resp.errStr, 1);          switch (resp.errCode) {          case BaseResp.ErrCode.ERR_OK:              //分享成功              break;          case BaseResp.ErrCode.ERR_USER_CANCEL:              //分享取消              break;          case BaseResp.ErrCode.ERR_AUTH_DENIED:              //分享拒绝              break;          }      }  }

六、配置清单文件AndroidManifest.xml

<activity        android:name=".wxapi.WXEntryActivity"      android:exported="true"      android:screenOrientation="portrait"       android:theme="@android:style/Theme.Translucent.NoTitleBar" />

七、签名打包软件，然后可以测试了

/**     * 微信分享     *     * @param flag(0:分享到微信好友，1：分享到微信朋友圈)     */    private void weChatShare(final int flag) {        if (wxAPI != null && !wxAPI.isWXAppInstalled()) {            AppUtils.showToast(mActivity, "您还未安装微信客户端呢");            return;        }        ImageLoader.getInstance().loadImage(shareImageLink.replace("@100Q.jpg", "@100w_100h_1e_100Q.jpg|100x100-2rc.jpg"), new SimpleImageLoadingListener() {            @Override            public void onLoadingComplete(String imageUri, View view, Bitmap loadedImage) {                super.onLoadingComplete(imageUri, view, loadedImage);                WXWebpageObject webpage = new WXWebpageObject();                webpage.webpageUrl = shareUrlLink;                WXMediaMessage msg = new WXMediaMessage(webpage);                msg.title = shareTitle;                msg.description = shareContent;                //这里替换一张自己工程里的图片资源                Bitmap thumb = loadedImage;                msg.setThumbImage(thumb);                SendMessageToWX.Req req = new SendMessageToWX.Req();                req.transaction = String.valueOf(System.currentTimeMillis());                req.message = msg;                req.scene = flag == 0 ? SendMessageToWX.Req.WXSceneSession : SendMessageToWX.Req.WXSceneTimeline;                wxAPI.sendReq(req);                Log.e("Share", shareContent + shareTitle + shareUrlLink);            }        });    }

-------------------------------------------------------------------------------登陆-----------------------------------------------------------------------------------------

 //Login start：
　　　　　　　IWXAPI WXAPI = WXAPIFactory.createWXAPI(this, AppConstants.KEY_WEIXIN_APP_ID, true);            WXAPI.registerApp(AppConstants.KEY_WEIXIN_APP_ID);            SendAuth.Req req = new SendAuth.Req();            req.scope = "snsapi_userinfo";            req.state = "wechat_sdk_demo";            WXAPI.sendReq(req);

WXEntryActivity

 // IWXAPI 是第三方app和微信通信的openapi接口    private IWXAPI api;    private Dialog progressDialog;// loading    @Override    public void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        // 通过WXAPIFactory工厂，获取IWXAPI的实例        api = WXAPIFactory.createWXAPI(this, AppConstants.KEY_WEIXIN_APP_ID, true);        api.registerApp(AppConstants.KEY_WEIXIN_APP_ID);        api.handleIntent(getIntent(), this);    }    @Override    protected void onNewIntent(Intent intent) {        super.onNewIntent(intent);        setIntent(intent);        api.handleIntent(intent, this);    }    // 微信发送请求到第三方应用时，会回调到该方法    @Override    public void onReq(BaseReq req) {        switch (req.getType()) {            case ConstantsAPI.COMMAND_GETMESSAGE_FROM_WX://                goToGetMsg();                break;            case ConstantsAPI.COMMAND_SHOWMESSAGE_FROM_WX://                goToShowMsg((ShowMessageFromWX.Req) req);                break;            default:                break;        }    }

public void onResp(BaseResp resp) {        switch (resp.getType()) {            case ConstantsAPI.COMMAND_SENDAUTH:                String result = null;                SendAuth.Resp sendResp = (SendAuth.Resp) resp;                if (sendResp.code != null&& !sendResp.code.equals("")) {                    WeiXinToken weiXinToken = new WeiXinToken(this);                    HashMap<String, String> params = new HashMap<String, String>();                    params.put("appid", Constants.APP_ID);                    params.put("secret", Constants.App_Key);                    params.put("code", sendResp.code);                    params.put("grant_type", "authorization_code");                    weiXinToken.getToken(params);                          }                switch (resp.errCode) {                    case BaseResp.ErrCode.ERR_OK:                        result = "登录成功";                        break;                    case BaseResp.ErrCode.ERR_USER_CANCEL:                        result = "用户取消";                        break;                    case BaseResp.ErrCode.ERR_AUTH_DENIED:                        result = "登录失败";                        break;                    default:                        result = "未知错误";                        break;                }                Toast.makeText(this, result, Toast.LENGTH_SHORT).show();                finish();                break;            case ConstantsAPI.COMMAND_SENDMESSAGE_TO_WX:                String result2 = null;                switch (resp.errCode) {                    case BaseResp.ErrCode.ERR_OK:                        result2 = "分享成功";                        break;                    case BaseResp.ErrCode.ERR_USER_CANCEL:                        result2 = "用户取消";                        break;                    case BaseResp.ErrCode.ERR_AUTH_DENIED:                        result2 = "分享失败";                        break;                    default:                        result2 = "未知错误";                        break;                }                Toast.makeText(this, result2, Toast.LENGTH_SHORT).show();                finish();                break;            default:                break;        }    }

    private void getAccessTokenFromWeiXin(String code) {        //https://api.weixin.qq.com/sns/oauth2/access_token?appid=APPID&secret=SECRET&code=CODE&grant_type=authorization_code        String requestUrlAppId = "https://api.weixin.qq.com/sns/oauth2/access_token?appid=" + AppConstants.KEY_WEIXIN_APP_ID;        String requestUrlAppSecret = "&secret=" + AppConstants.KEY_WEIXIN_APP_SECRET;        String requestUrlCode = "&code=" + code;        String requestUrlLast = "&grant_type=authorization_code";        String requestUrl = requestUrlAppId + requestUrlAppSecret + requestUrlCode + requestUrlLast;        HttpUtil.get(requestUrl, null, new AsyncHttpResponseHandler() {            @Override            public void onSuccess(int statusCode, Header[] headers, String content) {                JSONObject jsonObject = null;                try {                    jsonObject = new JSONObject(content);                    if (jsonObject.has("access_token") && jsonObject.has("openid")) {                        String access_token = jsonObject.getString("access_token");                        String openid = jsonObject.getString("openid");                        getUserInfoFromWeiXin(access_token, openid);                    } else {                        AppUtils.showToast(WXEntryActivity.this, "授权失败");                    }                } catch (Exception e) {                    e.printStackTrace();                }            }            @Override            public void onFailure(int statusCode, Header[] headers, String responseBody, Throwable error) {                AppUtils.showToast(WXEntryActivity.this, "请求失败，请检查网络重试");            }        });    }    //https://open.weixin.qq.com/cgi-bin/frame?t=resource/res_main_tmpl&verify=1&lang=zh_CN    //            "openid":"OPENID",//            "nickname":"NICKNAME",//            "sex":1,//            "province":"PROVINCE",//            "city":"CITY",//            "country":"COUNTRY",//            "headimgurl": "http://wx.qlogo.cn/mmopen/g3MonUZtNHkdmzicIlibx6iaFqAc56vxLSUfpb6n5WKSYVY0ChQKkiaJSgQ1dZuTOgvLLrhJbERQQ4eMsv84eavHiaiceqxibJxCfHe/0",//            "privilege":[//            "PRIVILEGE1",//            "PRIVILEGE2"//            ],//            "unionid": " o6_bmasdasdsad6_2sgVt7hMZOPfL"    private void getUserInfoFromWeiXin(String token, String openid) {        //https://api.weixin.qq.com/sns/userinfo?access_token=ACCESS_TOKEN&openid=OPENID        String requestUrl = "https://api.weixin.qq.com/sns/userinfo?access_token=" + token + "&openid=" + openid;        HttpUtil.get(requestUrl, null, new AsyncHttpResponseHandler() {            @Override            public void onSuccess(int statusCode, Header[] headers, String content) {                JSONObject jsonObject = null;                try {                    jsonObject = new JSONObject(content);                    if (jsonObject.has("nickname")) {                        String openid = jsonObject.getString("openid");                        String nickname = jsonObject.getString("nickname");                        String sex = jsonObject.getString("sex");                        String province = jsonObject.getString("province");                        String city = jsonObject.getString("city");                        String country = jsonObject.getString("country");                        String headimgurl = jsonObject.getString("headimgurl");                        String privilege = jsonObject.getString("privilege");                        String unionid = jsonObject.getString("unionid");                        postUserInfo2CBServer(unionid, sex, headimgurl, nickname, country, province, city);                    } else {                        AppUtils.showToast(WXEntryActivity.this, "授权失败");                    }                } catch (Exception e) {                    e.printStackTrace();                }            }            @Override            public void onFailure(int statusCode, Header[] headers, String errorResponse, Throwable e) {                AppUtils.showToast(WXEntryActivity.this, "请求失败，请检查网络重试");            }        });    }