react-native-recyclerview-list-android-x
v0.5.2
Published
A RecyclerView implementation for React Native
Maintainers
Readme
This is fork
Fork from https://github.com/ratson/react-native-recyclerview-list-android
Install via npm install react-native-recyclerview-list-android-x --save.
react-native-recyclerview-list
A RecyclerView implementation for ReactNative, that overcomes some limitations of FlatList, VirtualizedList and ListView.
Supported React Native Versions
| Component Version | RN Versions | |-----------------------|---------------| | 0.1.x | 0.45, 0.46 | | 0.2.0 - 0.2.2 | 0.47, 0.48 | | 0.2.3 | >= 0.49 |
Features
- Supports native animation during adding or removal of items (as the classic RecyclerView does)
- Add items at the top with no scrolling issue: it means that you can easily implement an infinite scroll in both directions
- Scroll to whatever index you want: even if you don't know the exact dimensions of your rendered items, you can scroll to any index without any scrolling issue
- Control the scrolling velocity: the
velocityparam in thescrollToIndexmethod is exactly for this - Initial scroll index: specify the scroll position at startup, and there will be no flicker
- Low memory usage: it renders just the visible items plus some extra items around
Caveats
- It's just for Android.
- Just vertical linear layout. No fancy layouts as grid.
Getting started
$ npm install react-native-recyclerview-list-android-x --save
Mostly automatic installation
$ react-native link react-native-recyclerview-list-android-x
Manual installation
Android
- Open up
android/app/src/main/java/[...]/MainActivity.java
- Add
import com.github.godness84.RNRecyclerViewList.RNRecyclerviewListPackage;to the imports at the top of the file - Add
new RNRecyclerviewListPackage()to the list returned by thegetPackages()method
- Append the following lines to
android/settings.gradle:include ':react-native-recyclerview-list' project(':react-native-recyclerview-list').projectDir = new File(rootProject.projectDir, '../node_modules/react-native-recyclerview-list/android') - Insert the following lines inside the dependencies block in
android/app/build.gradle:compile project(':react-native-recyclerview-list')
Usage
import RecyclerviewList, { DataSource } from 'react-native-recyclerview-list';
// Take an array as data
var rawdata = [
{ id: 1, text: 'Item #1' },
{ id: 2, text: 'Item #2' },
{ id: 3, text: 'Item #3' },
{ id: 4, text: 'Item #4' },
{ id: 5, text: 'Item #5' }
];
// Wrap your data in a DataSource.
// The second argument is the 'keyExtractor' function that returns the unique key of the item.
var dataSource = new DataSource(rawdata, (item, index) => item.id);
...
// Render the list
render() {
return (
<RecyclerviewList
style={{ flex: 1 }}
dataSource={dataSource}
renderItem={({item, index}) => (
<Text>{item.text} - {index}</Text>
)} />
);
} Props
Prop name | Description | Type | Default value
----------------------|---------------|-----------|--------------
style | Style for the list | object | {}
dataSource | The datasource that contains the data to render | DataSource | none
windowSize | Number of items to render at the top (and bottom) of the visible items | int | 30
initialListSize | Number of items to render at startup. | int | 10
initialScrollIndex | Index of the item to scroll at startup | int | none
initialScrollOffset | Offset of the scroll position at startup | int | none
itemAnimatorEnabled | Whether animates items when they are added or removed | boolean | true
ListHeaderComponent | Component to render as header | component | none
ListFooterComponent | Component to render as footer | component | none
ListEmptyComponent | Component to render in case of no items | component | none
ItemSeparatorComponent | Component to render as item separator | component | none
onVisibleItemsChange | Called when the first and last index of the visible items change | function | none
onScroll | Called when the list is scrolling | function | none
onScrollBeginDrag | Called when the user starts scrolling | function | none
onScrollEndDrag | Called when the user stops dragging | function | none
Methods
Method name | Params | Description
----------------------|---------------------------------|------------
scrollToIndex | { index, animated, velocity, viewPosition, viewOffset } | Scroll the list to the indexed item such that it is positioned in the viewable area such that viewPosition 0 places it at the top, 1 at the bottom, and 0.5 centered in the middle. viewOffset is a fixed number of pixels to offset the final target position. It can be animated. velocity is the amount of milliseconds per inch.
scrollToEnd | { animated, velocity } | Scroll to the end of the list. It can be animated. velocity is the amount of milliseconds per inch.
DataSource
It wraps your array, giving you some useful methods to update the data.
Methods
Method name | Params | Description
----------------------|---------------------------------|------------
push | item | Add an item to the end of the array
unshift | item | Add an item to the beginning of the array
splice | index, deleteCount, ...items | Equals to Array.prototype.splice
set | index, item | Set the item at the specified index
get | index | Returns the item at the specified index
size | | Returns the length of the array
setDirty | | Forces the RecyclerViewList to render again the visible items
