Want to pass data to other component - ListView - ios

Question

I have added and imported the sample data. I want to list out data from this file in a list view and I'm passing the data to the Row Component for RenderRow. But getting error saying
Row(...): A valid React element (or null) must be returned. You may have returned undefined, an array or some other invalid object.
import React, { Component } from 'react';
import { AppRegistry, View, ListView, Text, StyleSheet } from 'react-native';
import Row from './app/Row';
import data from './app/Data';
export default class ListViewDemo extends Component {
constructor(props) {
super(props);
const rowHasChanged = (r1, r2) => r1 !== r2
const ds = new ListView.DataSource({rowHasChanged});
this.state = {
dataSource: ds.cloneWithRows(data),
};
render() {
return (
<ListView
dataSource={this.state.dataSource}
renderRow={(data) => <Row {...data} />} // Getting error here
/>
);
}
}
AppRegistry.registerComponent('DemoApp',() => ListViewDemo)
These my sample Data.js You can check the data here.
export default data = [
{...}, {...}
];
Row.js:
const Row = (props) => {
<View Style={styles.container}>
<Image source={{ uri: props.picture.large}} />
<Text >
{`${props.name.first} ${props.name.last}`}
</Text>
</View>
}
What would be the problem?

Answer 1

ES6 only returns when there is no explicit blocks:
const cb = (param) => param * 2;
You should explicitly return:
const Row = (props) => {
return (
<View Style={styles.container}>
<Image source={{ uri: props.picture.large}} />
<Text >
{`${props.name.first} ${props.name.last}`}
</Text>
</View>
);
}
Check this answer for further explanation.

Answer 2

Change this Line to
renderRow={(data) => <Row {...data} />}
To This
renderRow={(data) =><Row {...this.props} />}
This may help you to get props in the row Component