Collapse

Animate presence with slide down transition

Import

Source

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Package

@mantine/core

Usage

From Bulbapedia: Bulbasaur is a small, quadrupedal Pokémon that has blue-green skin with darker patches. It has red eyes with white pupils, pointed, ear-like structures on top of its head, and a short, blunt snout with a wide mouth. A pair of small, pointed teeth are visible in the upper jaw when its mouth is open. Each of its thick legs ends with three sharp claws. On Bulbasaur's back is a green plant bulb, which is grown from a seed planted there at birth. The bulb also conceals two slender, tentacle-like vines and provides it with energy through photosynthesis as well as from the nutrient-rich seeds contained within.

import { useState } from 'react';
import { Button, Collapse } from '@mantine/core';

function Demo() {
  const [opened, setOpen] = useState(false);

  return (
    <>
      <Button onClick={() => setOpen((o) => !o)}>
        Toggle content
      </Button>

      <Collapse in={opened}>
        {/* content... */}
      </Collapse>
    </>
  );
}

Change transition

Set following props to control transition:

transitionDuration – duration in ms
transitionTimingFunction – timing function (ease, linear, etc.), defaults to ease
onTransitionEnd – called when transition ends (both open and close)

import { useState } from 'react';
import { Button, Collapse } from '@mantine/core';

function Demo() {
  const [opened, setOpen] = useState(false);

  return (
    <>
      <Button onClick={() => setOpen((o) => !o)}>
        Toggle with linear transition
      </Button>

      <Collapse in={opened} transitionDuration={1000} transitionTimingFunction="linear">
        {/* content... */}
      </Collapse>
    </>
  );
}

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