javascript - Google+ signinCallback 调用了两次并且在处理过程中丢失了 authresult

Question

我的代码中有一个错误。 我能够登录并检索用户信息。但是 signinCallback 又被调用了(我不知道怎么调用)。它显示我之前的用户信息不见了! 这是 HTML 端:

<span id="signinButton">
    <span
        class="g-signin"
        data-callback="signinCallback"
        data-clientid="CLIENT_ID"
        data-cookiepolicy="single_host_origin"
        data-requestvisibleactions="http://schemas.google.com/AddActivity"
        data-scope="https://www.googleapis.com/auth/plus.profile.emails.read"
        data-width="standard"
        data-height="short">
    </span>
</span>

这是 javascript 方面:

var AuthStates = {
  google: null
};

function signinCallback(authResult) {
    console.dir(authResult);
    console.log('Sign-in state: ' + authResult['error']+authResult['access_token']);
    AuthStates.google = authResult;
    console.log('signinCallback');
    chooseAuthProvider();
}

function chooseAuthProvider() {
  if (AuthStates.google && AuthStates.facebook) {
    if (AuthStates.google['access_token']) {
      // Signed in with Google, you can now use Google+ APIs.
      console.log(AuthStates.google);
      gapi.client.load('plus','v1', function(){
        var request = gapi.client.plus.people.get({
          'userId': 'me'
        }); 
        request.execute(function(resp) {
          document.getElementById('cname').value =resp.displayName;
          document.getElementById('cemail').value =resp.emails[0].value;
          console.log('Retrieved profile for:' + resp.displayName + ' ' + resp.emails[0].value);
        });
      });
}
}

它在第二个 signinCallback

上向控制台给出此响应

Sign-in state: user_signed_outundefined
signinCallback

Answer 1

尝试更新的说明 “Integrating Google Sign-In into your web app” 页面。