How to Show/Hide a Custom Loading Spinner Image in Salesforce Lightning Component

3 min readAug 30, 2020

Hey guys, today in this post we are going to learn about how to show and hide a “Custom Loading Spinner Image” as Clint Side in Salesforce Lightning Component.

Files we used in this post example:-

spinnerCustomApp.appLightning ApplicationIt is used for call the component to preview on browser.

spinnerCustomCmp.cmp

Lightning ComponentIt is used for create a spinner button and modal popup for display a spinner image.

spinnerCustomCmpController.js

JavaScript Controller FileIt is used for click button function for show and hide the custom loading spinner image.spinnerCustomCmp.cssComponent Style CSSIt is used for create custom Style CSS for display the spinner image at middle of the page.

Live Demo

Step 1:- Create Lightning Application : spinnerCustomApp.app

From Developer Console >> File >> New >> Lightning Application

spinnerCustomApp.app [Component Application File]

<aura:application extends=”force:slds”>

<c:spinnerCustomCmp/>

</aura:application>

Step 2:- Create Lightning Component : spinnerCustomCmp.cmp

From Developer Console >> File >> New >> Lightning Component

spinnerCustomCmp.cmp [Lightning Component File]

<aura:component implements=”force:appHostable,flexipage:availableForAllPageTypes,flexipage:availableForRecordHome,force:hasRecordId,forceCommunity:availableForAllPageTypes,force:lightningQuickAction” access=”global” >

<aura:attribute name=”mySpinner” type=”boolean” default=”false”/>

<div class=”slds”>

<div class=”slds-text-align — center slds-m-top — medium”>

<button class=”slds-button slds-button — brand” onclick=”{!c.spinnerAction}”>Spinner Button</button>

</div>

<aura:if isTrue=”{!v.mySpinner}”>

<div class=”spinnerContainer”>

<span class=”spinnerGif”><img src=”https://www.w3web.net/wp-content/uploads/2020/08/loading.gif" width=”180" height=”180"/></span>

</div>

<div class=”slds-backdrop slds-backdrop_open”></div>

</aura:if>

</div>

</aura:component>

Step 3:- Create Lightning Component : spinnerCustomCmpController.js

From Developer Console >> File >> New >> Lightning Component >> JavaScript Controller

spinnerCustomCmpController.js [JavaScript Controller]

({

spinnerAction : function(component, event, helper) {

component.set(“v.mySpinner”,true);

window.setTimeout(

$A.getCallback(function() {

component.set(“v.mySpinner”,false);

}), 5000

);

})

Step 4:- Create Lightning Component Style: spinnerCustomCmp.css

From Developer Console >> File >> New >> Lightning Component >> Component Style CSS

spinnerCustomCmp.css [Style CSS].THIS {

}

.THIS .spinnerContainer{width:100%; height:100%;}

.THIS .spinnerContainer .spinnerGif{width:180px; height:180px; display:inline-block; position:absolute; left:0; right:0; top:0; bottom:0; margin:auto; z-index:99;}

.THIS .slds-backdrop{background: rgba(126, 140, 153, 0.4); z-index:9;}