React native card (native base) onPress doesn't work

Question 1

React native card (native base) onPress doesn't work

javascript react-native native-base

abbob1 · Oct 27, 2017 · Viewed 12.3k times · Source

Answer

Answer

You should wrap your CardItem with TouchableOpacity or any other Touchable item. And give onPress function to that Touchable item.

<TouchableOpacity onPress={() => //your function}
    <CardItem>
    </CardItem>
</TouchableOpacity>

Note: Make sure you use the <TouchableOpacity> component associated with the react-native package rather than the react-native-gesture-handler package. Visual Studio Code editor may auto-import from react-native-gesture-handler which does not work in this particular use case.

Correct Package:

import { TouchableOpacity } from 'react-native';

Incorrect Package:

import { TouchableOpacity } from 'react-native-gesture-handler';

Question 2

I want to display cards with news from a JSON file. Getting the JSON works fine, but I want to add a onPress event, so I can click the card and navigate to the article.

My card view:

<Card>
  <CardItem button onPress={this._OnButtonPress(news.id)}>
    <Left>
      <Body>
        <Text style={styles.cardText}>{news.title}</Text>
      </Body>
    </Left>
  </CardItem>
  <CardItem>
    <Left>
        <Icon style={styles.icon} name="chatbubbles" />
        <Text>{news.comments} comments</Text>
    </Left>
    <Right>
      <Text>{news.published}</Text>
    </Right>
  </CardItem>
</Card>

I am trying to pass a variable to the onButtonPress() function

_OnButtonPress(newsID) {
  Alert.alert(newsID.toString());
}

To test the onPress event, all I did is alert the parameter.

I don't see anything wrong, but still I got this error

Does anyone know how I can fix this and what Im doing wrong here. Thanks in advance.

Update

My updated class:

import React, { Component } from "react";
import {
  Image,
  ListView,
  StyleSheet,
  Text,
  View,
  Alert
} from 'react-native';

import {
  Container,
  Header,
  Left,
  Right,
  Button,
  Card,
  CardItem,
  Icon,
  Body,
  Content,
  Logo
} from 'native-base';

import styles from "./styles";

const logo = require("../../../img/f1today.png");

var REQUEST_URL = 'http://v2.first-place.nl/test/news.json';

class News extends Component {
  constructor(props) {
    super(props);

    this._OnButtonPress = this._OnButtonPress.bind(this);

    this.state = {
      dataSource: new ListView.DataSource({
        rowHasChanged: (row1, row2) => row1 !== row2,
      }),
      loaded: false,
    };
  }

  _OnButtonPress(newsID) {
    Alert.alert(newsID.toString());
  }

  componentDidMount() {
    this.fetchData();
  }

  fetchData() {
    fetch(REQUEST_URL)
      .then((response) => response.json())
      .then((responseData) => {
        this.setState({
          dataSource: this.state.dataSource.cloneWithRows(responseData.articles),
          loaded: true,
        });
      })
      .done();
  }

  render() {

    if (!this.state.loaded) {
      return this.renderLoadingView();
    }

    return (
      <Container style={styles.container}>
        <Header
          style={{ backgroundColor: "#fff" }}
          androidStatusBarColor="#f05423"
          iosBarStyle="light-content">

        <Left>
          <Button
            transparent
            onPress={() => this.props.navigation.navigate("DrawerOpen")}
          >
            <Icon name="ios-menu" style={{color: 'black'}} />
          </Button>
        </Left>
        <Body> 
          <Image source={logo} style={styles.headerLogo} />
        </Body>
        <Right />

      </Header>

      <Content padder>

        <ListView
          dataSource={this.state.dataSource}
          renderRow={this.renderNews}
          style={styles.listView}
        />

      </Content>
    </Container>
    );
  }

  renderLoadingView() {
    return (
      <View style={styles.loading}>
        <Text>
          Loading news...
        </Text>
      </View>
    );
  }

  renderNews(news) {
    return (
      <Card>
        <CardItem button onPress={()=> this._OnButtonPress(news.id)}>
          <Left>
            <Body>
              <Text style={styles.cardText}>{news.title}</Text>
            </Body>
          </Left>
        </CardItem>
        <CardItem>
          <Left>
              <Icon style={styles.icon} name="chatbubbles" />
              <Text>{news.comments} comments</Text>
          </Left>
          <Right>
            <Text>{news.published}</Text>
          </Right>
        </CardItem>
      </Card>
    );
  }
}

export default News;

React native card (native base) onPress doesn't work

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