ListTest

index.ios.js

import React, {
  AppRegistry,
  Component,
  StyleSheet,
  Text,
  View,
  ListView,
  RecyclerViewBackedScrollView
} from 'react-native';

const genRandomRow = () => ({ title: Math.random() });
const genRandomSet = () => {
  const set = [];
  for (var i = 0; i < 30; i++) {
    set.push(genRandomRow());
  }
  return set;
};
var setData = genRandomSet();

class ListTest extends Component {

  constructor(props) {
    super(props);

    this.ds = new ListView.DataSource({rowHasChanged: (r1, r2) => {
      console.log('rowHasChanged');
      return r1 !== r2;
    }});

    this.state = {
      dataSource: this.ds.cloneWithRows(setData)
    }
  }

  renderRow(data) {
    return (
      <View style={{height: 80, justifyContent: 'center', alignItems: 'center', borderBottomColor: 'black', borderBottomWidth: 1}}>
        <Text>{data.title}</Text>
      </View>
    );
  }

  onEndReached = () => {
    setData = [...setData, ...genRandomSet()];
    this.setState({
      dataSource: this.ds.cloneWithRows(setData)
    });
    console.log('onEndReached');
  };

  render() {
    return (
      <ListView
        dataSource={this.state.dataSource}
        renderRow={this.renderRow}
        onEndReached={this.onEndReached}
      />
    );
  }
}

const styles = StyleSheet.create({
  container: {
    flex: 1,
    justifyContent: 'center',
    alignItems: 'center',
    backgroundColor: '#F5FCFF',
  },
  welcome: {
    fontSize: 20,
    textAlign: 'center',
    margin: 10,
  },
  instructions: {
    textAlign: 'center',
    color: '#333333',
    marginBottom: 5,
  },
});

AppRegistry.registerComponent('ListTest', () => ListTest);