android - Spinner: get state or get notified when opens -

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is possible know whether spinner open or closed? better if there sort of onopenlistener spinners.

i've tried using onitemselectedlistener this:

spinnertype.setonitemselectedlistener(new adapterview.onitemselectedlistener() {          @override         public void onitemselected(adapterview<?> parent, view view, int position, long id) {             executesomething();          }          @override         public void onnothingselected(adapterview<?> parent) {             log.d("nothing" , "selected");           }      });

i can know window close if selected (in executesomething()). don't notified if click outside of dialog, closes spinner

another option watch events extend spinner class , use 1 of methods(performclick() trigger dialog/popup) followed monitoring focus of window holding custom spinner. should provide wanted closed event possible finishing possibilities(for either dialog or dropdown mode).

the custom spinner class:

public class customspinner extends spinner {     /**     * interface client of spinner use receive     * open/closed events spinner.      */     public interface onspinnereventslistener {          /**          * callback triggered when spinner opened.          */          void onspinneropened(spinner spinner);          /**          * callback triggered when spinner closed.          */          void onspinnerclosed(spinner spinner);      }      private onspinnereventslistener mlistener;     private boolean mopeninitiated = false;      // implement spinner constructors need      @override     public boolean performclick() {         // register spinner opened have status         // indicator when container holding spinner may lose focus         mopeninitiated = true;         if (mlistener != null) {             mlistener.onspinneropened(this);         }         return super.performclick();     }      /**     * register listener listen events.     */     public void setspinnereventslistener(             onspinnereventslistener onspinnereventslistener) {         mlistener = onspinnereventslistener;     }      /**      * propagate closed spinner event listener outside if needed.      */     public void performclosedevent() {         mopeninitiated = false;         if (mlistener != null) {             mlistener.onspinnerclosed(this);         }     }      /**      * boolean flag indicating spinner triggered open event.      *       * @return true opened spinner       */     public boolean hasbeenopened() {         return mopeninitiated;     }      public void onwindowfocuschanged (boolean hasfocus) {         if (hasbeenopened() && hasfocus) {             performclosedevent();         }     }  }

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