react-native-defer-renderer

This library helps implement lazy rendering for react-native.

install

npm install react-native-defer-renderer --save

usage

Let's take news article page for example - a long <Article /> component with <Comment /> component at the bottom. It's efficient only to render <Comment /> component if the user scroll close to the <Comment /> component

Before:

<ScrollView>
  <Article />
  <Comment />
</ScrollView>

After:

<ScrollProvider>
	<Article />
	<ScrollReceiver name="ScrollReceiver" threshold={100}>
		<Comment />
	</ScrollReceiver>
</ScrollProvider>

The library provides two components:

<ScrollProvider />

• will return a react-native <ScrollView /> with all the props provided
• main purpose is to provide scroll position from <ScrollView /> to the child <ScrollReceiver /> component

<ScrollReceiver />

• warp the component to be lazy rendered
• will receive scroll position from <ScrollProvider /> as props
• when props update, it will decide to render the wrapped component if close enough.

example

please check the example folder

$ cd example

$ npm install

$ react-native run-ios or react-native run-android

demo

ios

android