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Version: v6

ion-loading

scoped

An overlay that can be used to indicate activity while blocking user interaction. The loading indicator appears on top of the app's content, and can be dismissed by the app to resume user interaction with the app. It includes an optional backdrop, which can be disabled by setting showBackdrop: false upon creation.

Basic Usage

Once presented, the loading indicator will display indefinitely by default. Developers can manually dismiss the loading indicator after creation by calling the dismiss() method on the component. The onDidDismiss function can be called to perform an action after the loading indicator is dismissed.

Alternatively, developers can configure the loading indicator to dismiss automatically after a specific amount of time by passing the number of milliseconds to display it in the duration of the loading options.

Controller

Inline

Ionic React and Ionic Vue users also have the option to use the ion-loading component directly in their template.

import React, { useState } from 'react';
import { IonLoading, IonButton, IonContent } from '@ionic/react';

export const LoadingExample: React.FC = () => {
const [showLoading, setShowLoading] = useState(false);

return (
<IonContent>
<IonButton onClick={() => setShowLoading(true)}>Show Loading</IonButton>
<IonLoading
cssClass="my-custom-class"
isOpen={showLoading}
onDidDismiss={() => setShowLoading(false)}
message={'Please wait...'}
duration={5000}
/>
</IonContent>
);
};

Customization

Spinners

The spinner that is used can be customized using the spinner property. See the spinner property documentation for a full list of options.

Theming

Loading uses scoped encapsulation, which means it will automatically scope its CSS by appending each of the styles with an additional class at runtime. Overriding scoped selectors in CSS requires a higher specificity selector.

We recommend passing a custom class and using that to add custom styles to the host and inner elements.

note

ion-loading is presented at the root of your application, so we recommend placing any ion-loading styles in a global stylesheet.

Interfaces

LoadingOptions

interface LoadingOptions {
spinner?: SpinnerTypes | null;
message?: string | IonicSafeString;
cssClass?: string | string[];
showBackdrop?: boolean;
duration?: number;
translucent?: boolean;
animated?: boolean;
backdropDismiss?: boolean;
mode?: Mode;
keyboardClose?: boolean;
id?: string;
htmlAttributes?: { [key: string]: any };

enterAnimation?: AnimationBuilder;
leaveAnimation?: AnimationBuilder;
}

Properties

animated

DescriptionIf true, the loading indicator will animate.
Attributeanimated
Typeboolean
Defaulttrue

backdropDismiss

DescriptionIf true, the loading indicator will be dismissed when the backdrop is clicked.
Attributebackdrop-dismiss
Typeboolean
Defaultfalse

cssClass

DescriptionAdditional classes to apply for custom CSS. If multiple classes are provided they should be separated by spaces.
Attributecss-class
Typestring | string[] | undefined
Defaultundefined

duration

DescriptionNumber of milliseconds to wait before dismissing the loading indicator.
Attributeduration
Typenumber
Default0

enterAnimation

DescriptionAnimation to use when the loading indicator is presented.
Attributeundefined
Type((baseEl: any, opts?: any) => Animation) | undefined
Defaultundefined

htmlAttributes

DescriptionAdditional attributes to pass to the loader.
Attributeundefined
Typeundefined | { [key: string]: any; }
Defaultundefined

keyboardClose

DescriptionIf true, the keyboard will be automatically dismissed when the overlay is presented.
Attributekeyboard-close
Typeboolean
Defaulttrue

leaveAnimation

DescriptionAnimation to use when the loading indicator is dismissed.
Attributeundefined
Type((baseEl: any, opts?: any) => Animation) | undefined
Defaultundefined

message

DescriptionOptional text content to display in the loading indicator.
Attributemessage
TypeIonicSafeString | string | undefined
Defaultundefined

mode

DescriptionThe mode determines which platform styles to use.
Attributemode
Type"ios" | "md"
Defaultundefined

showBackdrop

DescriptionIf true, a backdrop will be displayed behind the loading indicator.
Attributeshow-backdrop
Typeboolean
Defaulttrue

spinner

DescriptionThe name of the spinner to display.
Attributespinner
Type"bubbles" | "circles" | "circular" | "crescent" | "dots" | "lines" | "lines-sharp" | "lines-sharp-small" | "lines-small" | null | undefined
Defaultundefined

translucent

DescriptionIf true, the loading indicator will be translucent. Only applies when the mode is "ios" and the device supports backdrop-filter.
Attributetranslucent
Typeboolean
Defaultfalse

Events

NameDescription
ionLoadingDidDismissEmitted after the loading has dismissed.
ionLoadingDidPresentEmitted after the loading has presented.
ionLoadingWillDismissEmitted before the loading has dismissed.
ionLoadingWillPresentEmitted before the loading has presented.

Methods

dismiss

DescriptionDismiss the loading overlay after it has been presented.
Signaturedismiss(data?: any, role?: string) => Promise<boolean>

onDidDismiss

DescriptionReturns a promise that resolves when the loading did dismiss.
SignatureonDidDismiss<T = any>() => Promise<OverlayEventDetail<T>>

onWillDismiss

DescriptionReturns a promise that resolves when the loading will dismiss.
SignatureonWillDismiss<T = any>() => Promise<OverlayEventDetail<T>>

present

DescriptionPresent the loading overlay after it has been created.
Signaturepresent() => Promise<void>

CSS Shadow Parts

No CSS shadow parts available for this component.

CSS Custom Properties

NameDescription
--backdrop-opacityOpacity of the backdrop
--backgroundBackground of the loading dialog
--heightHeight of the loading dialog
--max-heightMaximum height of the loading dialog
--max-widthMaximum width of the loading dialog
--min-heightMinimum height of the loading dialog
--min-widthMinimum width of the loading dialog
--spinner-colorColor of the loading spinner
--widthWidth of the loading dialog

Slots

No slots available for this component.