Getting email from Facebook - FB android SDK

Question

I\'m using the following code to get email and name of the user from facebook

protected void onCreate(Bundle savedInstanceState) {

    //Display page
    setCon         


        

Answer 1

My working method like :

public void getUserDetailsFromFB(AccessToken accessToken) {

    GraphRequest req=GraphRequest.newMeRequest(accessToken, new GraphRequest.GraphJSONObjectCallback() {
        @Override
        public void onCompleted(JSONObject object, GraphResponse response) {
            Toast.makeText(getApplicationContext(),"graph request completed",Toast.LENGTH_SHORT).show();
            try{
                String email =  object.getString("email");
                String birthday = object.getString("birthday");
                String gender = object.getString("gender");
                String name = object.getString("name");
                String id = object.getString("id");
                String photourl =object.getJSONObject("picture").getJSONObject("data").getString("url");

            }catch (JSONException e)
            {
                Toast.makeText(getApplicationContext(),"graph request error : "+e.getMessage(),Toast.LENGTH_SHORT).show();

            }

        }
    });
    Bundle parameters = new Bundle();
    parameters.putString("fields", "id,name,email,gender,birthday,picture.type(large)");
    req.setParameters(parameters);
    req.executeAsync();
}

Then in your LoginButton :

loginButton.registerCallback(callbackManager, new FacebookCallback<LoginResult>() {
        @Override
        public void onSuccess(final LoginResult loginResult) {
            getUserDetailsFromFB(loginResult.getAccessToken());

        }
        @Override
        public void onCancel() {
            Toast.makeText(getApplicationContext(),"fb user canceled",Toast.LENGTH_SHORT).show();
        }
        @Override
        public void onError(FacebookException e) {
            Toast.makeText(getApplicationContext(),"fb error",Toast.LENGTH_SHORT).show();
        }
    });

Init like :

LoginButton loginButton =(LoginButton)findViewById(R.id.facebook_login_button);

<com.facebook.login.widget.LoginButton
                android:id="@+id/facebook_login_button"
                xmlns:facebook="http://schemas.android.com/apk/res-auto"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                facebook:com_facebook_login_text="Fb login button"
                android:layout_gravity="center_horizontal|bottom"
                android:textSize="20dp"
                android:layout_centerHorizontal="true" />