react-native-flex-image

A flexible-width component for React Native using aspectRatio

Installation

Note: Only for React Native version >= 0.40.0

$ yarn add react-native-flex-image

-- or --

$ npm install react-native-flex-image --save

Usage

Use <FlexImage> to display an image sized to the full-width of its parent while maintaining the correct ratio, without explicitly defining the width and height. FlexImage supports local images (asset) and remote images (uri).

Also supports loading indicator for remote images.

Demo

Expo demo: https://exp.host/@kfox/react-native-flex-image

Simple Example

import FlexImage from 'react-native-flex-image';

function App() {
  return (
    <View style={{flex: 1}}>
      <FlexImage
        source={{
          uri: 'image source uri',
        }}
      />
    </View>
  );
}

Local Image

import FlexImage from 'react-native-flex-image';

function App() {
  return (
    <View style={{flex: 1}}>
      <FlexImage source={require('./assets/react-logo.png')} />
    </View>
  );
}

With onPress Event

import FlexImage from 'react-native-flex-image';

function App() {
  return (
    <View style={{flex: 1}}>
      <FlexImage
        source={{
          uri: 'https://example.com/path/to/my/image',
        }}
        onPress={() => {
          let {imageClickCount} = this.state;
          this.setState({
            imageClickCount: imageClickCount + 1,
          });
        }}
      />
    </View>
  );
}

Custom Loading Component

import FlexImage from 'react-native-flex-image';

function App() {
  return (
    <View style={{flex: 1}}>
      <FlexImage
        source={{
          uri: 'image source uri',
        }}
        loadingComponent={<ActivityIndicator size="large" color="red" />}
      />
    </View>
  );
}

Progressive Loading Component

import FlexImage from 'react-native-flex-image';

function App() {
  return (
    <View style={{flex: 1}}>
      <FlexImage
        source={{
          uri: 'image source uri',
        }}
        thumbnail={{uri: 'thumbnail image source uri'}}
        loadingMethod="progressive"
      />
    </View>
  );
}

Properties

Note: Other properties will be passed down to underlying image component.

Prop	Type	Description	Default
source	required	source of the image	None
onPress	optional	onPress event when user clicking the image	null
style	optional	custom style for the image container	null
loadingComponent	optional	custom loading indicator when render the image	<ActivityIndicator animating={true} size="large" />
thumbnail	optional	source of the thumbnail	None
loadingMethod	optional	enum for select loading method, using indicator or progressive	indicator
errorComponent	optional	custom error component when fail displaying the image	null

License

MIT License. ©2017 - current, KodeFox, Inc.