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详解Android微信登录与分享

时间:2017-2-2 9:05:38  作者:棋牌资源网  来源:棋牌资源网  查看:7173  评论:0
内容摘要:具体的文档详情微信官网上介绍(微信官网文档),本人直接按照项目部署步骤进行讲解:第一步:申请你的AppID;第二步:依赖dependencies { compile 'com.tencent.mm.opensdk:wechat-sdk-android-with-mt...
具体的文档详情微信官网上介绍(微信官网文档),本人直接按照项目部署步骤进行讲解:

第一步:申请你的AppID;

第二步:依赖

dependencies {
    compile 'com.tencent.mm.opensdk:wechat-sdk-android-with-mta:1.0.2'
}

或者:

dependencies {
    compile 'com.tencent.mm.opensdk:wechat-sdk-android-without-mta:1.0.2'
}

这两个依赖包的区别是前者包含统计功能,后者没有。

第三步:在AndroidManifest.xml中加入必须的权限

<uses-permission android:name="android.permission.INTERNET"/>
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>
<uses-permission android:name="android.permission.ACCESS_WIFI_STATE"/>
<uses-permission android:name="android.permission.READ_PHONE_STATE"/>
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>

第四步:注册到微信,微信的SDK在使用之前需要调用代码进行注册,注册可以是在调用微信SDK的Activity,但最好还是放到入口Activity或者Application中;

WxApplication.java

复制代码
public static String APP_ID="你的APPID";
public static IWXAPI api;
public void onCreate() {
        super.onCreate();
        api = WXAPIFactory.createWXAPI(this, APP_ID, true);
        api.registerApp(APP_ID);  
}  
复制代码

第五步:微信登录。

  5.1 点击你的微信登录按钮,进行微信授权,首先需要获取一个code值,在包名下新建一个包,这里必须这样,不能随意命名,比如你的项目包名是:come.shenhua.wx则新建的包为come.shenhua.wx.wxapi在该包下创建一个WXEntryActivity继承IWXAPIEventHandler;(注意Activity的命名也不能随意更改)

LoginActivity.java

  

复制代码
private void onClickWeChatLogin() {
        if (WxApplicaiton.api == null) {
            WxApplication.api = WXAPIFactory.createWXAPI(this, WxApplication.APP_ID, true);
        }
        if (!WxApplication.api.isWXAppInstalled()) {
            ToastUtils.toast("您手机尚未安装微信,请安装后再登录");
            return;
        }
        WxApplication.api.registerApp(WxApplication.APP_ID);
        SendAuth.Req req = new SendAuth.Req();
        req.scope = "snsapi_userinfo";
        req.state = "wechat_sdk_xb_live_state";//官方说明:用于保持请求和回调的状态,授权请求后原样带回给第三方。该参数可用于防止csrf攻击(跨站请求伪造攻击),建议第三方带上该参数,可设置为简单的随机数加session进行校验
        WxApplication.api.sendReq(req);
    }
复制代码

  在AndroidManifest.xml中加入,(android:exported="true" 一定不能少)

<activity
            android:name=".wxapi.WXEntryActivity"
            android:exported="true" />
WXEntryActivity.java
复制代码
public class WXEntryActivity extends AppCompatActivity implements IWXAPIEventHandler {
    public static final String TAG = WXEntryActivity.class.getSimpleName();
    public static String code;
    public static BaseResp resp = null;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_wxentry);
        boolean handleIntent = XBLiveApplication.api.handleIntent(getIntent(), this);
     //下面代码是判断微信分享后返回WXEnteryActivity的,如果handleIntent==false,说明没有调用IWXAPIEventHandler,则需要在这里销毁这个透明的Activity;
        if(handleIntent==false){
            Log.d(TAG, "onCreate: "+handleIntent);
            finish();
        }
    }

    @Override
    protected void onNewIntent(Intent intent) {
        super.onNewIntent(intent);
        setIntent(intent);
        XBLiveApplication.api.handleIntent(intent, this);
    }

    @Override
    public void onReq(BaseReq baseReq) {
        Log.d(TAG, "onReq: ");
        finish();
    }

    @Override
    public void onResp(BaseResp baseResp) {
        if (baseResp != null) {
            resp = baseResp;
            code = ((SendAuth.Resp) baseResp).code; //即为所需的code
        }
        switch (baseResp.errCode) {
            case BaseResp.ErrCode.ERR_OK:
                Log.d(TAG, "onResp: 成功");
                finish();
                break;
            case BaseResp.ErrCode.ERR_USER_CANCEL:
                Log.d(TAG, "onResp: 用户取消");
                finish();
                break;
            case BaseResp.ErrCode.ERR_AUTH_DENIED:
                Log.d(TAG, "onResp: 发送请求被拒绝");
                finish();
                break;
        }
    }
复制代码

resp和code定义成全局变量,在WXEntryWActivity页面销毁后登录页面会走onResume()方法,在这里开始其他操作

  5.2 拿到code后在登录页面通过code获取access_token,官网的说法是:“access_token是调用授权关系接口的调用凭证,由于access_token有效期(目前为2个小时)较短,当access_token超时后,可以使用refresh_token进行刷新”,所以拿到access_token后再次请求进行refresh_token,刷新后拿到access_token即可发送请求获取微信用户信息了;

  获取access_token的URL:AccessTokenUrl = "https://api.weixin.qq.com/sns/oauth2/access_token?appid=你的appid&secret=你的AppSecret&code=授权获取到的code&grant_type=authorization_code";

  刷新access_token的URL:Refresh_tokenUrl = "https://api.weixin.qq.com/sns/oauth2/refresh_token?appid=你的appid&grant_type=refresh_token&refresh_token=上一步请求到的access_token;

  获取用户信息URL:UserInfoUrl = "https://api.weixin.qq.com/sns/userinfo?access_token=刷新的access_token&openid=刷新access_token时获取的openid;


复制代码
 @Override
    protected void onResume() {
        Log.d(TAG, "onResume: 1");
        super.onResume();
        //这里的判断是为了区分如果不是不是从WXEntryActivity页面销毁重启的,不走下面的代码
        if (WXEntryActivity.resp != null) {
            if (WXEntryActivity.resp.getType() == ConstantsAPI.COMMAND_SENDAUTH) {
                Thread thread = new Thread(downloadRun);
                thread.start();
                try {
                    thread.join();
                } catch (InterruptedException e) {
                    // TODO Auto-generated catch block
                    e.printStackTrace();
                }
            }
        }
    }

    public Runnable downloadRun = new Runnable() {

        @Override
        public void run() {
            WXGetAccessToken();
        }
    };

    //根据code获取access_token,这里用第三方volley框架进行post请求
    private void WXGetAccessToken() {
        String getAccessTokenUrl = AccessTokenUrl;
        StringRequest request = new StringRequest(Request.Method.GET, getAccessTokenUrl, new Response.Listener<String>() {
            @Override
            public void onResponse(String response) {
                Log.d(TAG, "onResponse: " + response);
                Gson gson = new Gson();
                WeChatLoginTokenModel tokenModel = gson.fromJson(response, WeChatLoginTokenModel.class);
                refresh_token = tokenModel.getRefresh_token();
                WXGetRefreshAccessToken();
            }
        }, new Response.ErrorListener() {
            @Override
            public void onErrorResponse(VolleyError error) {

            }
        });
        request.setTag("weChatGetToken");
        XBLiveApplication.getHttpRequestQueue().add(request);
    }

    //拿到access_token后再次发送请求进行刷新access_token,拿到access_refresh和openid
    private void WXGetRefreshAccessToken() {
        String getRefresh_tokenUrl =Refresh_tokenUrl ;
        StringRequest request = new StringRequest(Request.Method.GET, getRefresh_tokenUrl, new Response.Listener<String>() {
            @Override
            public void onResponse(String response) {
                Gson gson = new Gson();
                WeChatLoginTokenModel tokenModel = gson.fromJson(response, WeChatLoginTokenModel.class);
                String access_token = tokenModel.getAccess_token();
                String openid = tokenModel.getOpenid();
                WXGetUserInfo(access_token, openid);
            }
        }, new Response.ErrorListener() {
            @Override
            public void onErrorResponse(VolleyError error) {

            }
        });
        request.setTag("weChatGetRefreshToken");
        XBLiveApplication.getHttpRequestQueue().add(request);
    }

    //获取用户信息
    private void WXGetUserInfo(String access_token, String openid) {
        String getUserInfoUrl =UserInfoUr;
        StringRequest request = new StringRequest(Request.Method.GET, getUserInfoUrl, new Response.Listener<String>() {
            @Override
            public void onResponse(String response) {
                Log.d(TAG, "onResponse3: " + response);
                Gson gson = new Gson();
                WeChatUserInfoModel userInfoModel = gson.fromJson(response, WeChatUserInfoModel.class);
                String city = userInfoModel.getCity();
                String userName = userInfoModel.getNickname();
                String userIcon = userInfoModel.getHeadimgurl();
                int sex = userInfoModel.getSex();//1:男;0:女;2:未知
                String province = userInfoModel.getProvince();
                openId_WX = userInfoModel.getOpenid();
                ToastUtils.toast("登录成功");
            }
        }, new Response.ErrorListener() {
            @Override
            public void onErrorResponse(VolleyError error) {

            }
        });
    //下面代码是volley框架注册,请忽视
        request.setTag("weChatGetUserInfo");
        XBLiveApplication.getHttpRequestQueue().add(request);
    }
复制代码

 

注意一点:在做测试时,微信的应用签名必须要保持一致,比如你在官网填写的是没有打包签名的应用签名,你测试的APP也没有打包签名,那么是没有问题,但是如果你微信官网上填写的是已经上线经过打包签名的应用签名,那你在做测试时必须要用打包签名的应用去做测试。

 第六步:微信分享到朋友圈、微信好友、添加微信收藏:

 分享收藏基本完全一样,也是需要先进行注册的,如果之前已经进行了注册就不需要注册,否则在调用分享的Activity中或者全局Application中进行注册;scene 有一下三种:

SendMessageToWX.Req.WXSceneSession;分享到微信好友
SendMessageToWX.Req.WXSceneTimeline;分享到微信朋友圈
SendMessageToWX.Req.WXSceneFavorite;添加到微信收藏夹

  分享纯文本内容:

复制代码
              // 初始化一个WXTextObject对象
                        WXTextObject textObj = new WXTextObject();
                        textObj.text = text;

                        // 用WXTextObject对象初始化一个WXMediaMessage对象
                        WXMediaMessage msg = new WXMediaMessage();
                        msg.mediaObject = textObj;
                        // 发送文本类型的消息时,title字段不起作用
                        // msg.title = "Will be ignored";
                        msg.description = text;

                        // 构造一个Req
                        SendMessageToWX.Req req = new SendMessageToWX.Req();
                        req.transaction = buildTransaction("text"); // transaction字段用于唯一标识一个请求
                        req.message = msg;
                        req.scene = isTimelineCb.isChecked() ? SendMessageToWX.Req.WXSceneTimeline : SendMessageToWX.Req.WXSceneSession;
                        
                        // 调用api接口发送数据到微信
                        api.sendReq(req);
复制代码

分享音乐:

复制代码
                WXMusicObject music = new WXMusicObject();
                            music.musicUrl="http://staff2.ustc.edu.cn/~wdw/softdown/index.asp/0042515_05.ANDY.mp3";

                            WXMediaMessage msg = new WXMediaMessage();
                            msg.mediaObject = music;
                            msg.title = "Music Title ";
                            msg.description = "Music Album ";

                            Bitmap thumb = BitmapFactory.decodeResource(getResources(), R.drawable.send_music_thumb);
                            msg.thumbData = Util.bmpToByteArray(thumb, true);

                            SendMessageToWX.Req req = new SendMessageToWX.Req();
                            req.transaction = buildTransaction("music");
                            req.message = msg;
                            req.scene = isTimelineCb.isChecked() ? SendMessageToWX.Req.WXSceneTimeline : SendMessageToWX.Req.WXSceneSession;
                            api.sendReq(req);
复制代码

 

分享网页:

复制代码
                        WXWebpageObject webpage = new WXWebpageObject();
                                        webpage.webpageUrl = "http://www.qq.com";
                                        WXMediaMessage msg = new WXMediaMessage(webpage);
                                        msg.title = "WebPage Title ";
                                        msg.description = "WebPage Description ";
                                        Bitmap bmp = BitmapFactory.decodeResource(getResources(), R.drawable.send_music_thumb);
                                        Bitmap thumbBmp = Bitmap.createScaledBitmap(bmp, THUMB_SIZE, THUMB_SIZE, true);
                                        bmp.recycle();
                                        msg.thumbData = Util.bmpToByteArray(thumbBmp, true);
                                        SendMessageToWX.Req req = new SendMessageToWX.Req();
                                        req.transaction = buildTransaction("webpage");
                                        req.message = msg;
                                        req.scene = mTargetScene;
                                        api.sendReq(req);
复制代码

具体可参照官网Demo。(可分享纯文本内容,照片,音乐,视频,网页,链接等等)

  楼主在测试时发现,如果我分享的网页要显示一张图片,官方Demo给的是一张本地照片,而我的是图片地址,我做了一下处理:

  点击分享时先加载图片,写了一个while循环,直到拿到bitmap为止;

复制代码
    case R.id.line_share_wechat:
                if (!api.isWXAppInstalled()) {
                    ToastUtils.toast("您手机尚未安装微信,请安装后再登录");
                    return;
                }
                if (api == null) {
                    api = WXAPIFactory.createWXAPI(this,APP_ID, true);
                }
                mTargetScene = SendMessageToWX.Req.WXSceneSession;//share to wx
                gotoDownLoadSharePic();break;
复制代码

  

 
private void gotoDownLoadSharePic() {
        new Thread() {
            @Override
            public void run() {
                URL url = null;
                try {
                    url = new URL(thumb);
                    HttpURLConnection conn = (HttpURLConnection) url.openConnection();
                    conn.setDoInput(true);
                    conn.connect();
                    InputStream inputStream = conn.getInputStream();
                    bmp = BitmapFactory.decodeStream(inputStream);

                } catch (MalformedURLException e) {
                    e.printStackTrace();
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
        }.start();
        while (bmp == null) {
            Log.d(TAG, "onClick: bmp=" + bmp);
        }
        goToShareToWeChat(mTargetScene);
    }

    private void goToShareToWeChat(int targetScene) {
        WXWebpageObject mWebPage = new WXWebpageObject();
        mWebPage.webpageUrl = Constants.SHARE_QQ_URL + vid;
        msg = new WXMediaMessage(mWebPage);
        if (targetScene == SendMessageToWX.Req.WXSceneTimeline || targetScene == SendMessageToWX.Req.WXSceneFavorite) {
            msg.title = mTitleContent;
        } else {
            msg.title = name;
            msg.description = mTitleContent;
        }
        msg.setThumbImage(bmp);
        SendMessageToWX.Req req = new SendMessageToWX.Req();
        req.transaction = buildTransaction("webpage");
        req.message = msg;
        req.scene = targetScene;
        api.sendReq(req);
    }

标签:详解Android微信登录与分享 

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