KaHeL KaHeL - 29 days ago 17
Android Question

Facebook Android SDK 4.5.0 get email address

I'm currently creating a test application to test using the latest facebook SDK to update our existing application problem is that I need to get the email address which I know depends if the user has provided one on his account. Now the account I'm using to test provides one for sure but for unknown reason the facebook SDK only provides the user_id and the fullname of the account and nothing else. I'm confused on this since the the SDK3 and above provides more information than the updated SDK4 and I'm lost on how to get the email as all the answers I've seen so far doesn't provide the email on my end. Here's my code so far:

Login Button

@OnClick(R.id.btn_login)
public void loginFacebook(){
LoginManager.getInstance().logInWithReadPermissions(this, Arrays.asList("public_profile", "email"));
}


LoginManager Callback:

LoginManager.getInstance().registerCallback(callbackManager, new FacebookCallback<LoginResult>() {
@Override
public void onSuccess(LoginResult loginResult) {
requestUserProfile(loginResult);
}

@Override
public void onCancel() {
Toast.makeText(getBaseContext(),"Login Cancelled", Toast.LENGTH_SHORT).show();
}

@Override
public void onError(FacebookException e) {
Toast.makeText(getBaseContext(),"Problem connecting to Facebook", Toast.LENGTH_SHORT).show();
}
});


And the request for user profile:

public void requestUserProfile(LoginResult loginResult){
GraphRequest.newMeRequest(
loginResult.getAccessToken(), new GraphRequest.GraphJSONObjectCallback() {
@Override
public void onCompleted(JSONObject me, GraphResponse response) {
if (response.getError() != null) {
// handle error
} else {
try {
String email = response.getJSONObject().get("email").toString();
Log.e("Result", email);
} catch (JSONException e) {
e.printStackTrace();
}
String id = me.optString("id");
// send email and id to your web server
Log.e("Result1", response.getRawResponse());
Log.e("Result", me.toString());
}
}
}).executeAsync();
}


The JSON response returns only the ID and full name of my account but doesn't include the email. Did I missed out something?

Answer

You need to ask for parameters to facebook in order to get your data. Here I post my function where I get the facebook data. The key is in this line:

parameters.putString("fields", "id, first_name, last_name, email,gender, birthday, location"); // ParĂ¡metros que pedimos a facebook

Hope it helps you.

btnLoginFb.registerCallback(callbackManager, new FacebookCallback<LoginResult>() {

        @Override
        public void onSuccess(LoginResult loginResult) {

            System.out.println("onSuccess");
            progressDialog = new ProgressDialog(LoginActivity.this);
            progressDialog.setMessage("Procesando datos...");
            progressDialog.show();
            String accessToken = loginResult.getAccessToken().getToken();
            Log.i("accessToken", accessToken);

            GraphRequest request = GraphRequest.newMeRequest(loginResult.getAccessToken(), new GraphRequest.GraphJSONObjectCallback() {

                @Override
                public void onCompleted(JSONObject object, GraphResponse response) {
                    Log.i("LoginActivity", response.toString());
                    // Get facebook data from login
                    Bundle bFacebookData = getFacebookData(object); 
                }
            });
            Bundle parameters = new Bundle();
            parameters.putString("fields", "id, first_name, last_name, email,gender, birthday, location"); // ParĂ¡metros que pedimos a facebook
            request.setParameters(parameters);
            request.executeAsync();
        }

        @Override
        public void onCancel() {
            System.out.println("onCancel");
        }

        @Override
        public void onError(FacebookException exception) {
            System.out.println("onError");
            Log.v("LoginActivity", exception.getCause().toString());
        }
    });



private Bundle getFacebookData(JSONObject object) {

        try {
            Bundle bundle = new Bundle();
            String id = object.getString("id");

            try {
                URL profile_pic = new URL("https://graph.facebook.com/" + id + "/picture?width=200&height=150");
                Log.i("profile_pic", profile_pic + "");
                bundle.putString("profile_pic", profile_pic.toString());

            } catch (MalformedURLException e) {
                e.printStackTrace();
                return null;
            }

            bundle.putString("idFacebook", id);
            if (object.has("first_name"))
                bundle.putString("first_name", object.getString("first_name"));
            if (object.has("last_name"))
                bundle.putString("last_name", object.getString("last_name"));
            if (object.has("email"))
                bundle.putString("email", object.getString("email"));
            if (object.has("gender"))
                bundle.putString("gender", object.getString("gender"));
            if (object.has("birthday"))
                bundle.putString("birthday", object.getString("birthday"));
            if (object.has("location"))
                bundle.putString("location", object.getJSONObject("location").getString("name"));

            return bundle;
        }
      catch(JSONException e) {
        Log.d(TAG,"Error parsing JSON")
      }
}