npm package discovery and stats viewer.

Discover Tips

  • General search

    [free text search, go nuts!]

  • Package details

    pkg:[package-name]

  • User packages

    @[username]

Sponsor

Optimize Toolset

I’ve always been into building performant and accessible sites, but lately I’ve been taking it extremely seriously. So much so that I’ve been building a tool to help me optimize and monitor the sites that I build to make sure that I’m making an attempt to offer the best experience to those who visit them. If you’re into performant, accessible and SEO friendly sites, you might like it too! You can check it out at Optimize Toolset.

About

Hi, 👋, I’m Ryan Hefner  and I built this site for me, and you! The goal of this site was to provide an easy way for me to check the stats on my npm packages, both for prioritizing issues and updates, and to give me a little kick in the pants to keep up on stuff.

As I was building it, I realized that I was actually using the tool to build the tool, and figured I might as well put this out there and hopefully others will find it to be a fast and useful way to search and browse npm packages as I have.

If you’re interested in other things I’m working on, follow me on Twitter or check out the open source projects I’ve been publishing on GitHub.

I am also working on a Twitter bot for this site to tweet the most popular, newest, random packages from npm. Please follow that account now and it will start sending out packages soon–ish.

Open Software & Tools

This site wouldn’t be possible without the immense generosity and tireless efforts from the people who make contributions to the world and share their work via open source initiatives. Thank you 🙏

© 2024 – Pkg Stats / Ryan Hefner

@jaidis/react-native-responsive-image

v2.3.2

Published

Image component, that resizes itself appropriately on various screensizes.

Downloads

7

Readme

React Native Responsive Image

David npm GitHub commits npm

Why?

React Native's Image size is rendered with the same dimensions regardless of device screen size and screen resolution. That's bad. This component scales itself seemlesly on all iOS and Android devices.

Installation

npm install react-native-responsive-image --save

Usage

<ResponsiveImage> is expecting initWidth and initHeight props.

These values are used to set image size on any device that has screen size iPhone Plus, or larger. Image is then scaled down for any smaller device.

Optional prop component is used to pass down either an Image or ImageBackground imported react-native (defaults to Image if not provided)

Example

import React, { Component } from "react";
import { AppRegistry, StyleSheet, View } from "react-native";
import ResponsiveImage from "react-native-responsive-image";

class App extends Component {
  render() {
    return (
      <View
        style={{
          flexGrow: 1,
          justifyContent: "center",
          alignItems: "center",
          flexDirection: "row"
        }}
      >
        <ResponsiveImage
          source={{ uri: "https://reactjs.org/logo-og.png" }}
          initWidth="138"
          initHeight="138"
        />
        <ResponsiveImage
          source={{ uri: "https://reactjs.org/logo-og.png" }}
          initWidth="138"
          initHeight="138"
        />
        <ResponsiveImage
          source={{ uri: "https://reactjs.org/logo-og.png" }}
          initWidth="138"
          initHeight="138"
        />
      </View>
    );
  }
}

AppRegistry.registerComponent("ResponsiveImageExample", () => App);

For initWidth=138 it looks like this:

| Device | Screen width | Scale | <Image> width | | -------------------- | ------------ | ----- | --------------- | | iPhone SE | 320 | 0.77 | 106 | | iPhone X | 375 | 0.902 | 117 | | iPhone8 Plus | 414 | 1 | 138 | | Nokia 5 | 360 | 0.87 | 120 | | iPad (or any tablet) | - | 1 | 138 |

Just one image?

It sounds like you could save some loading by delivering low resolution images to screens with lower resolution. The best way is to serve just one high-resolution (retina) well compressed image. It’s surprising how well they can be compressed, and the result looks the same.

Retina Compression

Example project

Create project

expo init ResponsiveImageExample

  • go with 'expo-template-blank'

cp ./example/App.js ./ResponsiveImageExample/App.js

cp -R ./src ./ResponsiveImageExample

cd ResponsiveImageExample

yarn start

Development

  1. Modify any files in ./src directory

  2. Propagate changes by cp -R ./src ./ResponsiveImageExample/src