react-infinite-scroll-component-cesco
v4.5.2
Published
An Infinite Scroll component in react.
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react-infinite-scroll-component
A component to make all your infinite scrolling woes go away with just 4.15 kB! Pull Down to Refresh
feature
added. An infinite-scroll that actually works and super-simple to integrate!
install
npm install --save react-infinite-scroll-component
// in code ES6
import InfiniteScroll from 'react-infinite-scroll-component';
// or commonjs
var InfiniteScroll = require('react-infinite-scroll-component');
using
<InfiniteScroll
dataLength={items.length} //This is important field to render the next data
next={fetchData}
hasMore={true}
loader={<h4>Loading...</h4>}
endMessage={
<p style={{textAlign: 'center'}}>
<b>Yay! You have seen it all</b>
</p>
}
// below props only if you need pull down functionality
refreshFunction={this.refresh}
pullDownToRefresh
pullDownToRefreshContent={
<h3 style={{textAlign: 'center'}}>↓ Pull down to refresh</h3>
}
releaseToRefreshContent={
<h3 style={{textAlign: 'center'}}>↑ Release to refresh</h3>
}>
{items}
</InfiniteScroll>
The InfiniteScroll
component can be used in three ways.
- Specify a value for the
height
prop if you want your scrollable content to have a specific height, providing scrollbars for scrolling your content and fetching more data. - If your scrollable content is being rendered within a parent element that is already providing overflow scrollbars, you can set the
scrollableTarget
prop to reference the DOM element and use it's scrollbars for fetching more data. - Without setting either the
height
orscrollableTarget
props, the scroll will happen atdocument.body
like Facebook's timeline scroll.
docs version wise
live examples
- infinite scroll (never ending) example using react (body/window scroll)
- infinte scroll till 500 elements (body/window scroll)
- infinite scroll in an element (div of height 400px)
- infinite scroll with
scrollableTarget
(a parent element which is scrollable)
props
name | type | description
-----|------|------------
next | function | a function which must be called after reaching the bottom. It must trigger some sort of action which fetches the next data. The data is passed as children
to the InfiniteScroll
component and the data should contain previous items too. e.g. Initial data = [1, 2, 3] and then next load of data should be [1, 2, 3, 4, 5, 6].
hasMore | boolean | it tells the InfiniteScroll
component on whether to call next
function on reaching the bottom and shows an endMessage
to the user
children | node (list) | the data items which you need to scroll.
dataLength | number | set the length of the data.This will unlock the subsequent calls to next.
loader | node | you can send a loader component to show while the component waits for the next load of data. e.g. <h3>Loading...</h3>
or any fancy loader element
scrollThreshold | number | string | A threshold value defining when InfiniteScroll
will call next
. Default value is 0.8
. It means the next
will be called when user comes below 80% of the total height. If you pass threshold in pixels (scrollThreshold="200px"
), next
will be called once you scroll at least (100% - scrollThreshold) pixels down.
onScroll | function | a function that will listen to the scroll event on the scrolling container. Note that the scroll event is throttled, so you may not receive as many events as you would expect.
endMessage | node | this message is shown to the user when he has seen all the records which means he's at the bottom and hasMore
is false
className | string | add any custom class you want
style | object | any style which you want to override
height | number | optional, give only if you want to have a fixed height scrolling content
scrollableTarget | node or string | optional, reference to a (parent) DOM element that is already providing overflow scrollbars to the InfiniteScroll
component. You should provide the id
of the DOM node preferably.
hasChildren | bool | children
is by default assumed to be of type array and it's length is used to determine if loader needs to be shown or not, if your children
is not an array, specify this prop to tell if your items are 0 or more.
pullDownToRefresh | bool | to enable Pull Down to Refresh feature
pullDownToRefreshContent | node | any JSX that you want to show the user, default={<h3>Pull down to refresh</h3>}
releaseToRefreshContent | node | any JSX that you want to show the user, default={<h3>Release to refresh</h3>}
pullDownToRefreshThreshold | number | minimum distance the user needs to pull down to trigger the refresh, default=100px
refreshFunction | function | this function will be called, it should return the fresh data that you want to show the user
initialScrollY | number | set a scroll y position for the component to render with.
key | string | the key for the current data set being shown, used when the same component can show different data sets at different times, default=undefined