java - Disable refresh icon on Menu while content is being refreshed -

i have refresh icon on menu when clicked refresh contents of activity. problem refresh icon still clickable while refreshing not want. here menu.xml file

<menu xmlns:android="http://schemas.android.com/apk/res/android"   xmlns:app="http://schemas.android.com/apk/res-auto"   xmlns:tools="http://schemas.android.com/tools"   tools:context=".mainactivity"> <item     android:id="@+id/action_refresh"     android:orderincategory="100"     android:icon="@mipmap/ic_refresh"     android:enabled="true"     android:title="@string/action_settings"     app:showasaction="always"/> 

and here handle click event icon

@override public boolean onoptionsitemselected(menuitem item) {     int id = item.getitemid();     if (id == r.id.action_refresh) {         // getdata() fetches data , updates display         getdata();         return true;     }      return super.onoptionsitemselected(item); } 

also, there way maybe dim icon user knows have clicked icon?

when click icon, use isenabled() method of menuitem check if enabled. if is, disable until data loaded. once data loads successfully, can enable again. example:

@override public boolean onoptionsitemselected(menuitem item) {          int id = item.getitemid();         if(item.isenabled()) {             // "dim" icon said. can use other alpha values if like.             item.geticon().setalpha(130);             // disable menu icon             item.setenabled(false);          }         getdata();         return true;     }      return super.onoptionsitemselected(item); } 

now, said have getdata() method updates display after fetches data. once data fetched, check if menuitem disabled. if disabled, enable again. example:

if(item != null && item.isenabled() == false) {         // "undim" icon         item.geticon().setalpha(255);         // enable again         item.setenabled(true);     }