Is it possible to highlight ion-tab and show loading message before the content is rendered

Hi

I am using ion-tabs in my ionic application.

Code:
<ion-tabs (ionChange)=“tabChangedMethod()”>
<ion-tab [root]=“tab3Root” tabTitle=“Traits” tabIcon=“analytics” [rootParams]=“flock” (ionSelect)=“tabSelectMethod()”>
<ion-tab [root]=“tab7Root” tabTitle=“Graph” tabIcon=“analytics” (ionSelect)=“tabSelectMethod()”>

the (ionChange) and (ionSelect) methods were added to test when the tab selection is done.

Is there any way to highlight tab as soon as user clicks on it. The default current behavior is tab gets highlighted after the content is loaded for selected tab.

This can be replicated only on some older mobile devices easily. Or any of the new devices if the tab is loading large data-set. For example: We are loading large set of data points (5000-6000) for drawing high chart scatter plot.

Any suggestion please. Appreciate your help!

Regards