Android Facebook Graph API JSON不返回电子邮件

Question

I'm currently having some issues trying to obtain the user's email via GraphUser api object.

I managed to obtain firstname, lastname and everything else but not the email .

I've done my research that you'll need to add some permission to obtain user's email (login email to facebook, not xxx@facebook.com). I'm stuck! How do I do this in Android?

private class FacebookloginDelegateImpl extends FacebookloginDelegate
{
    /*
     * Optional callback method
     */ 
    protected void onCompletedProgress(GraphUser user,
            Response response) 
    {
        Log.d("FB UserID:", user.getId());
        Log.d("FB FirstName:", user.getFirstName());
        Log.d("FB LastName:", user.getLastName());
        Log.d("Object:", user.toString());
        Log.d("Response:", response.toString());
        //Log.d("FB Email:", (String) user.asMap().get("email"));

        String userID = user.getId();
        String firstname = user.getFirstName();
        String lastname = user.getLastName();
        String email= "";
        try {
            email = user.getInnerJSONObject().getString("email");
        } catch (JSONException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
        Log.d("FB Email:", email);

        LoginActivity.this.requestFacebookLogin(userID, firstname, lastname);

        //String stringData = "{\"ID\":\""+user.getId()+"\",\"Name\":\""+user.getName()+"\"}";  
    }

Answer 1

Are you sure that the user has set up another email than the default facebook one? Facebook forces everyone to have their email and you need to go in and change it in order to have another one.