Sticky component for React
npm install react-stickyMake your React components sticky!
#### Demos
#### Version 6.x Highlights
* Completely redesigned to support sticky behavior via higher-order component, giving you ultimate control of implementation details
* Features a minimal yet efficient API
* Drops support for versions of React < 15.3. If you are using an earlier version of React, continue to use the 5.x series
#### CSS
There's a CSS alternative to react-sticky: the position: sticky feature. However it currently does not have full browser support, specifically a lack of IE11 support and some bugs with table elements. Before using react-sticky, check to see if the browser support and restrictions prevent you from using position: sticky, as CSS will always be faster and more durable than a JS implementation.
``css`
position: -webkit-sticky;
position: sticky;
top: 0;
`sh`
npm install react-sticky
The goal of react-sticky is make it easier for developers to build UIs that have sticky elements. Some examples include a sticky navbar, or a two-column layout where the left side sticks while the right side scrolls.
react-sticky works by calculating the position of a component relative to a component. If it would be outside the viewport, the styles required to affix it to the top of the screen are passed as an argument to a render callback, a function passed as a child.
`js`
Sticky element
}
The majority of use cases will only need the style to pass to the DOM, but some other properties are passed for advanced use cases:
* style _(object)_ - modifiable style attributes to optionally be passed to the element returned by this function. For many uses, this will be the only attribute needed.isSticky
* _(boolean)_ - is the element sticky as a result of the current event?wasSticky
* _(boolean)_ - was the element sticky prior to the current event?distanceFromTop
* _(number)_ - number of pixels from the top of the Sticky to the nearest StickyContainer's topdistanceFromBottom
* _(number)_ - number of pixels from the bottom of the Sticky to the nearest StickyContainer's bottomcalculatedHeight
* _(number)_ - height of the element returned by this function
The Sticky's child function will be called when events occur in the parent StickyContainer,style
and will serve as the callback to apply your own logic and customizations, with sane attributes
to get you up and running quickly.
Here's an example of all of those pieces together:
app.js
`js
import React from 'react';
import { StickyContainer, Sticky } from 'react-sticky';
// ...
class App extends React.Component {
render() {
return (
{/* Other elements can be in between StickyContainer and Sticky,
but certain styles can break the positioning logic used. */}
{({
style,
// the following are also available but unused in this example
isSticky,
wasSticky,
distanceFromTop,
distanceFromBottom,
calculatedHeight
}) => (
{/ ... /}
)}
{/ ... /}
);
},
};
`
When the "stickiness" becomes activated, the arguments to the sticky function
are modified. Similarly, when deactivated, the arguments will update accordingly.
supports all valid
props.$3
#### relative _(default: false)_
Set
relative to true if the element will be rendered within
an overflowing (e.g. style={{ overflowY: 'auto' }}) and you want
the behavior to react to events only within that container.When in
relative mode, window events will not trigger sticky state changes. Only scrolling
within the nearest StickyContainer can trigger sticky state changes.#### topOffset _(default: 0)_
Sticky state will be triggered when the top of the element is
topOffset pixels from the top of the closest . Positive numbers give the impression of a lazy sticky state, whereas negative numbers are more eager in their attachment.app.js
`js
...
{ props => (...) }
...
`The above would result in an element that becomes sticky once its top is greater than or equal to 80px away from the top of the
.#### bottomOffset _(default: 0)_
Sticky state will be triggered when the bottom of the element is
bottomOffset pixels from the bottom of the closest .app.js
`js
...
{ props => (...) }
...
`The above would result in an element that ceases to be sticky once its bottom is 80px away from the bottom of the
.#### disableCompensation _(default: false)_
Set
disableCompensation to true if you do not want your to apply padding to
a hidden placeholder to correct "jumpiness" as attachment changes from position:fixed
and back.app.js
js
...
{ props => (...) }
...
`#### disableHardwareAcceleration _(default: false)_
When
is set to true, the element will not use hardware acceleration (e.g. transform: translateZ(0)). This setting is not recommended as it negatively impacts
the mobile experience, and can usually be avoided by improving the structure of your DOM.app.js
`js
...
{ props => (...) }
...
``