I need user's email address after successful facebook login in android using SDK 4.0

Question

I have integrated latest Facebook android sdk 4.0. In SDK 3.0+ user\'s email address is retreived using user.getProperty(\"email\") after successful login. I am looking for

Answer 1

In the new facebook graph you need to ask permissions for access that information. for example on the activity you have put the LoginButton you add this line in the OnCreate method

loginButtonFacebook.setReadPermissions(Arrays.asList("public_profile", "email", "user_birthday"));

Then you get that information

loginButtonFacebook.registerCallback(callbackManager, new FacebookCallback() {
@Override
public void onSuccess(LoginResult loginResult) {
    GraphRequest.newMeRequest(
        loginResult.getAccessToken(), new GraphRequest.GraphJSONObjectCallback() {
            @Override
            public void onCompleted(JSONObject me, GraphResponse response) {
                if (response.getError() != null) {
                    // handle error
                } else {
                    String email = me.optString("email");
                }
            }
        }).executeAsync();
}