refactoring - Recommendation to refactor android code -

i'm c# programmer , pretty new android programming.

in case of following codes below, recommendation refactor? many listener inside of listener make hard refactor.

in c#, async/await can return value httpclient can isolate json communication logic code.

but far know, android listener requires final keyword in order send result outside of scope, , final cannot accept value after http communication (i use loopj httpclient).

note app minimum requrement api version 8.

            // delete button remove post. buttondelete.setonclicklistener(new view.onclicklistener() {             @override             public void onclick(view view) { // show dialog ask delete.                 dialog.showmessagedialog(postviewactivity.this, getstring(r.string.dialogdeletepost), new dialoginterface.onclicklistener() {                     @override                     public void onclick(dialoginterface dialoginterface, int i) { // async http delete send.         mainactivity.httpclient.delete(serverurl.question.tostring() + "/" + id, new asynchttpresponsehandler() {                             @override                             public void onsuccess(string s) { // when result received, close current activity.                                 super.onsuccess(s);                                 setresult(result_ok);                                 questionviewactivity.this.finish();                             }                              @override                             public void onfailure(throwable throwable, string s) {                                 super.onfailure(throwable, s);                              }                         });                     }                 });             }         });  // show yes-no dialog public void showmessagedialog(context context, string message, dialoginterface.onclicklistener onyesclicklistener){     new alertdialog.builder(context)             .setmessage(message)             .setcancelable(false)             .setpositivebutton(r.string.yes, onyesclicklistener)             .setnegativebutton(r.string.cancel, null)             .show(); }