apirequest.java

new APIRequest( new APIClient(HomeActivity.this), APP_SERVER+"/search", APIRequest.GET)
            .withDefaultParams(defaultParamsHashMap())
            .addParam("format", "json")
            .addParam("q", searchTerm)
            .addHeaderParam("Referer", APP_REFERER);
            .start(new JSONRequestHandler(){
                
                @Override
                public void before(){
                    showProgressBar();
                }
                
                @Override
                public void after(){
                    updateView();
                    hideProgressBar();
                }
                
                @Override
                public void onException(Exception e) {
                    e.printStackTrace();
                }
                
                @Override
                public void onResponse(HttpEntity response, JSONObject jsonResponse) {
                    createModelFromResponse(jsonResponse)
                }
            });