_______ is a component used to create scrollable container in React Native which is lazy loaded.
Question
_______ is a component used to create scrollable container in React Native which is lazy loaded.
Solution
The component used to create a scrollable container in React Native which is lazy loaded is called "FlatList".
Here are the steps to use it:
- First, you need to import FlatList from react-native in your file.
import { FlatList } from 'react-native';
- Then, you can use FlatList in your component. It takes two required props: data and renderItem.
data
is an array of items to be rendered.renderItem
is a function which returns a component to render for each item.
Here is an example:
<FlatList
data={[{key: 'a'}, {key: 'b'}]}
renderItem={({item}) => <Text>{item.key}</Text>}
/>
-
FlatList also has an optional prop called
keyExtractor
. This is used to uniquely identify each item in the list. If not provided, React Native will use index as a key. -
Another optional prop is
onEndReached
. This is a function that gets called when the user has scrolled to the end of the list. This can be used to load more data. -
FlatList is lazy loaded, which means it only renders items that are currently visible. This makes it very efficient for large lists.
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