Home Cannot create a custom com.facebook.Request.Callback
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Cannot create a custom com.facebook.Request.Callback

user634 Published in April 25, 2018, 8:41 am

I send a Graph API request as follow:

Request request = new Request(session, graphPath, params, HttpMethod.GET, new CustomCallBack());

In which my CustomCallBack implements the com.facebook.Request.Callback:

private class CustomCallBack implements Callback{

    public CustomCallBack(){


    public void onCompleted(Response response) {



It announced error like

Illegal modifier for the local class CustomCallBack; only abstract or final is permitted

Can anyone explain why?

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