i am developing a lightning component and i'd like to find out how to adding a loading image. Inside my controller i have a fetch() function which will get a server response. How can i display a loading gif until i get a response back from the server?


This is literally in the documentation:

    <aura:attribute name="loaded" type="Boolean" default="false" />

    <lightning:button label="Toggle" variant="brand" onclick="{! c.handleClick }" />

    <div class="exampleHolder">
        <aura:if isTrue="{! v.loaded }">
            Put loaded content here
            <aura:set attribute="else">
                <lightning:spinner alternativeText="Loading" />

    handleClick: function (cmp, event) {
        cmp.set('v.loaded', !cmp.get('v.loaded'));

    position: relative;
    display: inline-block;
    margin-left: 15px;
    width: 55px;
    vertical-align: middle;
    white-space: nowrap;

Obviously, you'll do a callback to the server to load the data, but this example includes everything you need.

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.