Android 集成 google 登录并获取性别等隐私信息的实现代码

前言

公司做海外产品的，集成的是 google 账号登录，账号信息、邮箱等这些不涉及隐私的按 google 的正常登录流程可以轻松实现 。但是一旦需要获取涉及隐私的信息就比较麻烦，文档也不是十分清晰，非常难找，很多坑。

google 账号登录

官方链接：https://developers.google.com/identity/sign-in/android/start
https://developers.google.com/identity/sign-in/android/sign-in
google 账号登录接入的坑：

• 申请的 client_id必须是 api console 后台 ：https://console.cloud.google.com/apis 与 google play 后台对应的应用关联起来。
• client_id 下的签名信息和报名信息必须和测试时的 apk 的签名信息和报名信息一致。
• 在 google play 下启动 google 的二次签名，则 api console 后台的签名信息是二次签名后的信息。打包测试时使用上传 到 google play 后台的 apk 的签名证书即可。

google 登录的流程在这个文档写的比较清楚了：https://developers.google.com/identity/sign-in/android/sign-in，这里大致说一下，不贴代码了

构建需求请求的内容：

googlesigninoptions gso = new googlesigninoptions.builder(googlesigninoptions.default_sign_in)
  .requestemail()
  .requestidtoken("your client_id")
  .build();
// build a googlesigninclient with the options specified by gso.
mgooglesigninclient = googlesignin.getclient(this, gso);

2.发起登录请求，跳转 google 登录页面。

intent signinintent = mgooglesigninclient.getsigninintent();
 startactivityforresult(signinintent, rc_sign_in);

获取 google 登录返回

@override
public void onactivityresult(int requestcode, int resultcode, intent data) {
 super.onactivityresult(requestcode, resultcode, data);

 // result returned from launching the intent from googlesigninclient.getsigninintent(...);
 if (requestcode == rc_sign_in) {
  // the task returned from this call is always completed, no need to attach
  // a listener.
  task<googlesigninaccount> task = googlesignin.getsignedinaccountfromintent(data);
  handlesigninresult(task);
 }
}

获取 用户 id token,传到你自己的 服务端 做验证

private void handlesigninresult(task<googlesigninaccount> completedtask) {
 try {
  googlesigninaccount account = completedtask.getresult(apiexception.class);
  // signed in successfully, show authenticated ui. 
 } catch (apiexception e) {
  // the apiexception status code indicates the detailed failure reason.
  // please refer to the googlesigninstatuscodes class reference for more information.
  log.w(tag, "signinresult:failed code=" + e.getstatuscode()); 
 }
}

切换账号

 /**
  * 重新获取账号列表
  */
 public void revokeaccess() {
  try {
   if (mgooglesigninclient!=null && mactivity!=null){
    mgooglesigninclient.revokeaccess().addoncompletelistener(mactivity, new oncompletelistener<void>() {
     @override
     public void oncomplete(@nonnull task<void> task) {
      log.d(tag, "oncomplete: ");
     }
    });
   }
  } catch (exception e){
   e.printstacktrace();
  }
 }

获取公开资料和需要特别授权的信息（性别、生日等）

1、在构建请求是新增获取 的公共资料信息 及 需要获取的特殊信息

private static final string gender_scope = "https://www.googleapis.com/auth/user.gender.read";
googlesigninoptions gso = new googlesigninoptions.builder(googlesigninoptions.default_sign_in)
  .requestemail()
  .requestidtoken("your client_id")
  .requestscopes(new scope(gender_scope));
  .build();
// build a googlesigninclient with the options specified by gso.
mgooglesigninclient = googlesignin.getclient(this, gso);

需要请求的信息可在如下链接查找：

2、检测是否有权限

 googlesigninaccount lastsignedinaccount = googlesignin.getlastsignedinaccount(mactivity);
  scope scope = new scope(gender_scope);
  if (utils.isneedrequest() && !googlesignin.haspermissions(lastsignedinaccount,scope)){
     sglog.d(tag+" need requst permission...");
   googlesignin.requestpermissions(mactivity,rc_get_token,lastsignedinaccount,scope);
  }

注意：这一步不需要也可以，有这一步会出现一个 “再确认” 的授权页面，没有也不影响获取的信息。
3、跳转登录页面 （同以上 google 账号登录）
4、获取登录信息 （同以上 google账号登录）
5、开启线程获取 特殊信息

 getprofileasynctask = new getprofileasynctask(mactivity, new gpprofileinfocallback() {
   @override
   public void ongetprofileinfo(person person) {
    sglog.d(tag+" ongetprofileinfo... ");
    getprofileinfo(person);
   }
  });
  getprofileasynctask.execute(signinaccount);

异步任务

// global instance of the http transport
 private static final httptransport http_transport = androidhttp.newcompatibletransport();

 // global instance of the json factory
 private static final jsonfactory json_factory = jacksonfactory.getdefaultinstance();

 private static class getprofileasynctask extends asynctask<googlesigninaccount, void, person> {

  // retrieved from the sigin result of an authorized googlesignin
  private weakreference<activity> mactivityref;
  private gpprofileinfocallback mprofileinfocallback;

  public getprofileasynctask(activity activity,gpprofileinfocallback callback) {
   mactivityref = new weakreference<>(activity);
   mprofileinfocallback = callback;
  }

  @override
  protected person doinbackground(googlesigninaccount... params) {
   if (mactivityref.get() == null){
    sglog.d(tag+" getprofileasynctask doinbackground activity is null.");
    return null;
   }

   googlesigninaccount signinaccount = params[0];
   context context = mactivityref.get().getapplicationcontext();
   googleaccountcredential credential = googleaccountcredential.usingoauth2(
     context,
     collections.singleton(gender_scope));
   credential.setselectedaccount(signinaccount.getaccount());
   sglog.d(tag+" get profile info start.");
   peopleservice service =
     new peopleservice.builder(http_transport, json_factory, credential)
     .setapplicationname(apkutils.getappname(context)) // your app name
     .build();
   sglog.d(tag+" get profile info start.");
   // get info. on user
   person person =null;
   try {
    person = service
      .people()
      .get("people/me")
      .setpersonfields("genders")
      .execute();
    sglog.d(tag+" getperson end.");
    // return the result
    if (mprofileinfocallback!=null){
     mprofileinfocallback.ongetprofileinfo(person);
    }
   } catch (exception e) {
    sglog.e(tag+e.getmessage());
    if (mprofileinfocallback!=null){
     mprofileinfocallback.ongetprofileinfo(null);
    }
    e.printstacktrace();
   }
   return person;
  }

  @override
  protected void onpostexecute(person avoid) {
   super.onpostexecute(avoid);
  }
 }

获取性别信息

private void getprofileinfo(person person){
  sglog.d(tag+" executeprofileinfo...");
  if (person == null){
   notifyresult(mlastuser,utils.success);
  }else {
   try {
    list<gender> genders = person.getgenders();
    gender gender = genders.get(0);
    string value = gender.getvalue();
    sglog.d(tag+" genders:"+genders.size()+ " gender:"+value);
    mlastuser.setgender(value);
    notifyresult(mlastuser,utils.success);
   }catch (exception e){
    sglog.e(tag+" getprofileinfo error.");
    notifyresult(null,sgerrorcode.login_failed);
    e.printstacktrace();
   }
  }
 }

参考文献：

总结

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