android volley - ResponseDelivery Implementations -

i implement common error handler handle errors of particular status code. every request put on queue have same behavior. 1 scenario upon 401. when 401 status received, show login dialog , replay original request without activity launched request having know it. looking @ implementing custom responsedelivery identical executordelivery. when went this, discovered request.finish method package private. there better way implement kind of behavior volley? thanks

start following:

public abstract class baserequest<t extends errorresponse> extends request<t> {     @override     protected response parsenetworkresponse(networkresponse response) {         jsonstring = new string(response.data);         t parsedresponse = null;         try {             parsedresponse = parsejson(jsonstring);             // can handle type of common errors server             if (parsedresponse != null && parsedresponse.geterrorcode() == 401) {                 return response.error(new sessionexpirederror(parsedresponse.geterrormessage()));             }         } catch (jsonsyntaxexception e) {             ln.e(e, "jsonsyntaxexception");             ln.e(jsonstring);             return response.error(new volleyerror(e));         }          return response.success(parsedresponse, httpheaderparser.parsecacheheaders(response));     } }    public class errorstatusresponse {     private int errorcode;     private string errormessage;     ... } 

all requests extending baserequest checked against errors specify before result delivered.

moving on, cannot start activity or present dialog without context (and don't want pass context responsedelivery. create baseactivity purpose:

public abstract class baseactionbaractivity         extends actionbaractivity         implements response.errorlistener {     @override     public void onerrorresponse(volleyerror error) {       // if childactivitiy wants override method, make sure call super.onerrorresponse        if (error instanceof noconnectionerror) {         noconnection();       } else if (error instanceof sessionexpirederror) {         sessionexpired(); // startforresult loginactivity here       } else {         ln.e(error);       }     } }

in order fire previous request again, i'd smth this:

// childactivity public void firerequest() {   api.getmyitemsfromserver(); }  @override protected void onactivityresult(int requestcode, int resultcode, intent data) {   super.onactivityresult(requestcode, resultcode, data);   if (requestcode == subactivity_session_expired) {     api.getmyitemsfromserver();   } }

or save last unsuccessful request in baseactivity , handle in onactivityresult()