# refresh The **** component is used to pull down to refresh the page. ## Required Permissions None ## Child Components Supported ## Attributes In addition to the attributes in [Universal Attributes](js-components-common-attributes.md), the following attributes are supported.

Name

Type

Default Value

Mandatory

Description

offset

<length>

-

No

Distance to the top of the parent component from the <refresh> component that comes to rest after a successful swipe gesture.

refreshing

boolean

false

No

Whether the <refresh> component is being used for refreshing.

type

string

auto

No

Dynamic effect when the component is refreshed. Two options are available and cannot be modified dynamically.

  • auto: default effect. When the list is pulled to the top, the list does not move. When the list is pulled to the bottom, a circle is displayed.
  • pulldown: When the list is pulled to the top, users can continue to pull down to trigger a refresh. The rebound effect will appear after the refresh. If the child component contains a list, set scrolleffect of the list to no to prevent drop-down effect conflicts.

lasttime

boolean

false

No

Whether to display the last update time. The character string format is last update time: XXXX, where XXXX is displayed based on the time and date display specifications and cannot be dynamically modified. (It is recommended that this attribute be used when type is set to pulldown. The fixed distance is at the bottom of the content drop-down area. Pay attention to the offset attribute setting to prevent overlapping.)

timeoffset6+

<length>

-

No

Sets the distance between the update time and the top of the parent component.

friction

number

42

No

Pull-down friction coefficient. The value ranges from 0 to 100. A larger value indicates a more responsive component. For example, if a user pulls the component down 100 px, it will actually move 100 * friction% px.
## Styles In addition to the styles in [Universal Styles](js-components-common-styles.md), the following styles are supported.

Name

Type

Default Value

Mandatory

Description

background-color

<color>

white

No

Background color of the <refresh> component.

progress-color

<color>

black

No

Loading color of the <refresh> component.
## Events The following events are supported.

Name

Parameter

Description

refresh

{ refreshing: refreshingValue }

Triggered when the <refresh> component is pulled down and the refresh status changes. Available values are as follows:

  • false: The <refresh> component is being pulled down.
  • true: The <refresh> component is not being pulled down.

pulldown

{ state: string }

Triggered when a user starts or stops pulling down the <refresh> component. Available values are as follows:

  • start: The pull-down starts.
  • end: The pull-down ends.
## Methods Methods in [Universal Methods](js-components-common-methods.md) are not supported. ## Example ```
{{$item}}
``` ``` /* xxx.css */ .container { flex-direction: column; align-items: center; width: 100%; height: 100%; } .list { width: 100%; height: 100%; } .listitem { width: 100%; height: 150px; } .content { width: 100%; height: 100%; flex-direction: column; align-items: center; justify-content: center; } .text { font-size: 35px; font-weight: bold; } ``` ``` // xxx.js import prompt from '@system.prompt'; export default { data: { list:[], fresh:false }, onInit() { this.list = []; for (var i = 0; i <= 3; i++) { var item ='List element' + i; this.list.push(item); } }, refresh: function (e) { prompt.showToast({ message: 'Refreshing...' }) var that = this; that.fresh = e.refreshing; setTimeout(function () { that.fresh = false; var addItem ='Refresh element'; that.list.unshift(addItem); prompt.showToast({ message: 'Refreshed.' }) }, 2000) } } ``` ![](figures/en-us_image_0000001150719520.gif)