Full screen background image in React Native app

Question

I'm trying to set a full background image on my login view.

I found that question here in Stackoverflow: What's the best way to add a full screen background image in React Native

So I did it like there, but it didn't work:

var login = React.createClass({
  render: function() {
    return (
      <View style={ styles.container }>
        <Image source={require('../images/login_background.png')} style={styles.backgroundImage} />
        <View style={ styles.loginForm }>
          <Text>TEST</Text>
        </View>
      </View>
    );
  }
});

var styles = StyleSheet.create({
  container: {
    flex: 1,
  },

  backgroundImage: {
    flex: 1,
    resizeMode: 'cover', // or 'stretch'
  },

  loginForm: {
  },
});

I don't know what I'm doing wrong. Any help would be appreciated.

Edit: Here is the app, in case you guys want to take it a look -> Full size background image example on rnplay.org. I don't know how to do it editable :/

Thanks :)

Answer 1

You should use ImageBackground component. See React Native Docs

<ImageBackground source={...} style={{width: '100%', height: '100%'}}>
    <Text>Inside</Text>
</ImageBackground>

Answer 2

Try either of these two methods:

The first is similar to yours except you have position: 'absolute' on your login form:

var styles = StyleSheet.create({
    container: {
        flex: 1,
    },
    backgroundImage: {
        flex: 1,
        resizeMode: 'cover', // or 'stretch'
    },
    loginForm: {
        position: 'absolute',
        top: 0,
        bottom: 0,
        left: 0,
        right: 0
    },
});

The second method involves using the ImageView as a container:

render: function() {
    return (
        <View style={ styles.container }>
            <Image source={require('../images/login_background.png')} style={styles.backgroundImage}>
                <View style={ styles.loginForm }>
                    <Text>TEST</Text>
                </View>
            </Image>
        </View>
    );
}

Answer 3

I was doing a silly mistake...

Text component has a white background, and I thought the problem was with the Image and stuff...

So, the solution is to wrap the info inside the Image tag, as @Cherniv and @kamikazeOvrld said, but also set transparent background to the component inside it.

Here is the fully working example:

Code:

'use strict';

var React = require('react-native');
var {
  AppRegistry,
  StyleSheet,
  Text,
  View,
  Image,
  StatusBarIOS
} = React;

StatusBarIOS.setHidden(true);

var SampleApp = React.createClass({
  render: function() {
    return (
      <View style={ styles.container }>
        <Image source={{uri: 'http://puu.sh/mJ1ZP/6f167c37e5.png'}} style={styles.backgroundImage} >
          <View style={ styles.loginForm }>
            <Text style={ styles.text }>Some text</Text>
          </View>
        </Image>
      </View>
    );
  }
});

var styles = StyleSheet.create({
  container: {
    flex: 1,
  },

  backgroundImage: {
    flex: 1,
    resizeMode: 'cover', // or 'stretch',
    justifyContent: 'center',
  },

  loginForm: {
    backgroundColor: 'transparent',
    alignItems: 'center',
  },

  text: {
    fontSize: 30,
    fontWeight: 'bold',
  }
});

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

Also in rnplay.org

I hope it helps someone like me, when you are writing code all day, your brain doesn't work as well as you'd like!

Thanks.