bamlab/react-native-image-resizer


🗻 Resize local images with React Native

License: MIT

Language: Objective-C

Keywords: android, ios, jpeg, react-native, resize


React Native Image Resizer

A React Native module that can create scaled versions of local images (also supports the assets library on iOS).

Setup

Install the package:

  • React Native >= 0.60
yarn add react-native-image-resizer
cd ios && pod install
  • React Native <= 0.59
yarn add react-native-image-resizer
react-native link react-native-image-resizer

Android

Note: on latest versions of React Native, you may have an error during the Gradle build on Android (com.android.dex.DexException: Multiple dex files define Landroid/support/v7/appcompat/R$anim). Run cd android && ./gradlew clean to fix this.

Manual linking

Manual link information for Android: Link

Usage example

import ImageResizer from 'react-native-image-resizer';

ImageResizer.createResizedImage(imageUri, newWidth, newHeight, compressFormat, quality, rotation, outputPath).then((response) => {
  // response.uri is the URI of the new image that can now be displayed, uploaded...
  // response.path is the path of the new image
  // response.name is the name of the new image with the extension
  // response.size is the size of the new image
}).catch((err) => {
  // Oops, something went wrong. Check that the filename is correct and
  // inspect err to get more details.
});

Sample app

A basic, sample app is available in the example folder. It uses the module to resize a photo from the Camera Roll.

API

promise createResizedImage(path, maxWidth, maxHeight, compressFormat, quality, rotation = 0, outputPath)

The promise resolves with an object containing: path, uri, name, size (bytes), width (pixels), and height of the new file. The URI can be used directly as the source of an <Image> component.

Option Description
path Path of image file, or a base64 encoded image string prefixed with 'data:image/imagetype' where imagetype is jpeg or png.
maxWidth Image max width (ratio is preserved)
maxHeight Image max height (ratio is preserved)
compressFormat Can be either JPEG, PNG or WEBP (android only).
quality A number between 0 and 100. Used for the JPEG compression.
rotation Rotation to apply to the image, in degrees, for android. On iOS, rotation is limited (and rounded) to multiples of 90 degrees.
outputPath The resized image path. If null, resized image will be stored in cache folder. To set outputPath make sure to add option for rotation too (if no rotation is needed, just set it to 0).

👉 About Bam

We are a 100 people company developing and designing multiplatform applications with React Native using the Lean & Agile methodology. To get more information on the solutions that would suit your needs, feel free to get in touch by email or through or contact form!

We will always answer you with pleasure 😁

Project Statistics

Sourcerank 11
Repository Size 515 KB
Stars 897
Forks 255
Watchers 12
Open issues 60
Dependencies 938
Contributors 38
Tags 15
Created
Last updated
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Top Contributors See all

Florian Rival PierreCapo Alexandre Moureaux timzaak Antoine Doubovetzky Cristiano Coelho cristianoccazinsp Umberto Lentini Chris Fogelklou Louis Lagrange Benjamin Michel Andrew Shini Mark Miyashita Antti Ala-Ilkka igrayson Jason Turner yukim Kevin Cooper Kesha Antonov Shinpei

Packages Referencing this Repo

react-native-image-resizer-fix-undefined
Rescale local images with React Native
Latest release 1.1.0 - Published - 897 stars
react-native-image-resizer
Rescale local images with React Native
Latest release 1.1.0 - Updated - 897 stars

Recent Tags See all

v1.0.1 February 21, 2019
1.0.0 August 17, 2017
0.1.1 May 08, 2017
0.1.1 May 08, 2017
0.1.0 January 15, 2017
0.0.12 November 05, 2016
0.0.11 September 12, 2016
0.0.10 September 07, 2016
0.0.9 August 26, 2016
0.0.8 August 21, 2016
v0.0.6 June 30, 2016
v0.0.5 June 18, 2016
v0.0.4 June 14, 2016
v0.0.3 May 16, 2016
v0.0.2 April 05, 2016

Interesting Forks See all

anumang/react-native-image-resizer
🗻 Resize local images with React Native
Objective-C - Last pushed - 1 stars

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