Version: v7

ion-loading

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.

Inline (Recommended)

Controller

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.

Accessibility

Ionic automatically sets Loading's role to dialog.

If the message property is defined for Loading, then the aria-labelledby attribute will be automatically set to the message element's ID. Otherwise, aria-labelledby will not be set, and developers must provide an aria-label using the htmlAttributes property.

All ARIA attributes can be manually overwritten by defining custom values in the htmlAttributes property of Loading.

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

Description	If `true`, the loading indicator will animate.
Attribute	`animated`
Type	`boolean`
Default	`true`

backdropDismiss

Description	If `true`, the loading indicator will be dismissed when the backdrop is clicked.
Attribute	`backdrop-dismiss`
Type	`boolean`
Default	`false`

cssClass

Description	Additional classes to apply for custom CSS. If multiple classes are provided they should be separated by spaces.
Attribute	`css-class`
Type	`string ｜ string[] ｜ undefined`
Default	`undefined`

duration

Description	Number of milliseconds to wait before dismissing the loading indicator.
Attribute	`duration`
Type	`number`
Default	`0`

enterAnimation

Description	Animation to use when the loading indicator is presented.
Attribute	`undefined`
Type	`((baseEl: any, opts?: any) => Animation) ｜ undefined`
Default	`undefined`

htmlAttributes

Description	Additional attributes to pass to the loader.
Attribute	`undefined`
Type	`undefined ｜ { [key: string]: any; }`
Default	`undefined`

isOpen

Description	If `true`, the loading indicator will open. If `false`, the loading indicator will close. Use this if you need finer grained control over presentation, otherwise just use the loadingController or the `trigger` property. Note: `isOpen` will not automatically be set back to `false` when the loading indicator dismisses. You will need to do that in your code.
Attribute	`is-open`
Type	`boolean`
Default	`false`

keyboardClose

Description	If `true`, the keyboard will be automatically dismissed when the overlay is presented.
Attribute	`keyboard-close`
Type	`boolean`
Default	`true`

leaveAnimation

Description	Animation to use when the loading indicator is dismissed.
Attribute	`undefined`
Type	`((baseEl: any, opts?: any) => Animation) ｜ undefined`
Default	`undefined`

message

Description	Optional text content to display in the loading indicator. This property accepts custom HTML as a string. Content is parsed as plaintext by default. `innerHTMLTemplatesEnabled` must be set to `true` in the Ionic config before custom HTML can be used.
Attribute	`message`
Type	`IonicSafeString ｜ string ｜ undefined`
Default	`undefined`

mode

Description	The mode determines which platform styles to use.
Attribute	`mode`
Type	`"ios" ｜ "md"`
Default	`undefined`

showBackdrop

Description	If `true`, a backdrop will be displayed behind the loading indicator.
Attribute	`show-backdrop`
Type	`boolean`
Default	`true`

spinner

Description	The name of the spinner to display.
Attribute	`spinner`
Type	`"bubbles" ｜ "circles" ｜ "circular" ｜ "crescent" ｜ "dots" ｜ "lines" ｜ "lines-sharp" ｜ "lines-sharp-small" ｜ "lines-small" ｜ null ｜ undefined`
Default	`undefined`

translucent

Description	If `true`, the loading indicator will be translucent. Only applies when the mode is `"ios"` and the device supports `backdrop-filter`.
Attribute	`translucent`
Type	`boolean`
Default	`false`

trigger

Description	An ID corresponding to the trigger element that causes the loading indicator to open when clicked.
Attribute	`trigger`
Type	`string ｜ undefined`
Default	`undefined`

Events

Name	Description	Bubbles
`didDismiss`	Emitted after the loading indicator has dismissed. Shorthand for ionLoadingDidDismiss.	Yes
`didPresent`	Emitted after the loading indicator has presented. Shorthand for ionLoadingWillDismiss.	Yes
`ionLoadingDidDismiss`	Emitted after the loading has dismissed.	Yes
`ionLoadingDidPresent`	Emitted after the loading has presented.	Yes
`ionLoadingWillDismiss`	Emitted before the loading has dismissed.	Yes
`ionLoadingWillPresent`	Emitted before the loading has presented.	Yes
`willDismiss`	Emitted before the loading indicator has dismissed. Shorthand for ionLoadingWillDismiss.	Yes
`willPresent`	Emitted before the loading indicator has presented. Shorthand for ionLoadingWillPresent.	Yes

Methods

dismiss

Description	Dismiss the loading overlay after it has been presented.
Signature	`dismiss(data?: any, role?: string) => Promise<boolean>`

onDidDismiss

Description	Returns a promise that resolves when the loading did dismiss.
Signature	`onDidDismiss<T = any>() => Promise<OverlayEventDetail<T>>`

onWillDismiss

Description	Returns a promise that resolves when the loading will dismiss.
Signature	`onWillDismiss<T = any>() => Promise<OverlayEventDetail<T>>`

present

Description	Present the loading overlay after it has been created.
Signature	`present() => Promise<void>`

CSS Shadow Parts

No CSS shadow parts available for this component.

CSS Custom Properties

Name	Description
`--backdrop-opacity`	Opacity of the backdrop
`--background`	Background of the loading dialog
`--height`	Height of the loading dialog
`--max-height`	Maximum height of the loading dialog
`--max-width`	Maximum width of the loading dialog
`--min-height`	Minimum height of the loading dialog
`--min-width`	Minimum width of the loading dialog
`--spinner-color`	Color of the loading spinner
`--width`	Width of the loading dialog

Slots

No slots available for this component.

Basic Usage​

Inline (Recommended)​

Controller​

Customization​

Spinners​

Theming​

note

Accessibility​

Interfaces​

LoadingOptions​

Properties​

animated​

backdropDismiss​

cssClass​

duration​

enterAnimation​

htmlAttributes​

isOpen​

keyboardClose​

leaveAnimation​

message​

mode​

showBackdrop​

spinner​

translucent​

trigger​

Events​

Methods​

dismiss​

onDidDismiss​

onWillDismiss​

present​

CSS Shadow Parts​

CSS Custom Properties​

Slots​

Contents

Basic Usage

Inline (Recommended)

Controller

Customization

Spinners

Theming

Accessibility

Interfaces

LoadingOptions

Properties

animated

backdropDismiss

cssClass

duration

enterAnimation

htmlAttributes

isOpen

keyboardClose

leaveAnimation

message

mode

showBackdrop

spinner

translucent

trigger

Events

Methods

dismiss

onDidDismiss

onWillDismiss

present

CSS Shadow Parts

CSS Custom Properties

Slots