Created
May 25, 2021 10:37
-
-
Save lukebrandonfarrell/b90c6f553d645805c9a9c3dc7da0555c to your computer and use it in GitHub Desktop.
Example of Animated re-ordering of a list in React Native using React Spring
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
/* NPM - Node Package Manage */ | |
import React from 'react'; | |
import { View, ScrollView } from 'react-native'; | |
import { useTransition, animated } from "@react-spring/native"; | |
/** Constants */ | |
const AnimatedView = animated(View); | |
const ListItemHeight = 190; | |
export function WorkspaceScreen() { | |
const edges = [...]; | |
const transitions = useTransition( | |
edges?.map((data, i) => ({ ...data, y: -(i * ListItemHeight) })), | |
{ | |
key: (item) => item.id, | |
from: { height: 0, opacity: 0 }, | |
leave: { height: 0, opacity: 0 }, | |
enter: ({ y, height }) => ({ y, height, opacity: 1 }), | |
update: ({ y, height }) => ({ y, height }), | |
} | |
); | |
return ( | |
<ScrollView contentContainerStyle={{ minHeight: edges.length * ListItemHeight }}> | |
{transitions((style, item, _, index) => ( | |
<AnimatedView style={{ | |
zIndex: edges.length - index, | |
bottom: style.y, | |
height: style.height, | |
opacity: style.opacity | |
}} key={item.id}> | |
<MyListItem ... /> | |
</AnimatedView> | |
))} | |
</ScrollView> | |
); | |
} |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment