Image Editor Native module for React Native.
Originally extracted from React Native issue#23313
and maintained by the community.
Getting started
Install
yarn add @react-native-community/image-editor
# or
npm install @react-native-community/image-editor --save
Install Pods
npx pod-install
Usage
Start by importing the library:
import ImageEditor from '@react-native-community/image-editor';
Crop image
Crop the image specified by the URI param. If URI points to a remote image, it will be downloaded automatically. If the image cannot be loaded/downloaded, the promise will be rejected.
If the cropping process is successful, the resultant cropped image will be stored in the cache path, and the CropResult
returned in the promise will point to the image in the cache path. ⚠️ Remember to delete the cropped image from the cache path when you are done with it.
ImageEditor.cropImage(uri, cropData).then((result) => {
console.log('Cropped image uri:', result.uri);
});
cropData: ImageCropData
Name | Type | Description |
---|
offset | { x: number, y: number } | The top-left corner of the cropped image, specified in the original image's coordinate space |
size | { width: number, height: number } | Size (dimensions) of the cropped image |
displaySize (optional) | { width: number, height: number } | Size to which you want to scale the cropped image |
resizeMode (optional) | 'contain' | 'cover' | 'stretch' | 'center' | Resizing mode to use when scaling the image (iOS only, Android resize mode is always 'cover' , Web - no support) Default value: 'cover' |
quality (optional) | number | A value in range 0.0 - 1.0 specifying compression level of the result image. 1 means no compression (highest quality) and 0 the highest compression (lowest quality) Default value: 0.9 |
format (optional) | 'jpeg' | 'png' | 'webp' | The format of the resulting image. Default value: based on the provided image; if value determination is not possible, 'jpeg' will be used as a fallback.
'webp' isn't supported by iOS. |
includeBase64 (optional) | boolean | Indicates if Base64 formatted picture data should also be included in the CropResult . Default value: false |
headers (optional) | object | Headers | An object or Headers interface representing the HTTP headers to send along with the request for a remote image. |
result: CropResult
Name | Type | Description |
---|
uri | string | The path to the image file (example: 'file:///data/user/0/.../image.jpg' ) WEB: uri is the data URI string (example 'data:image/jpeg;base64,/4AAQ...AQABAA' ) |
path | string | The URI of the image (example: '/data/user/0/.../image.jpg' ) WEB: path is the blob URL (example 'blob:https://example.com/43ff7a16...e46b1' ) |
name | string | The name of the image file. (example: 'image.jpg' ) |
width | number | The width of the image in pixels |
height | number | Height of the image in pixels |
size | number | The size of the image in bytes |
type | string | The MIME type of the image ('image/jpeg' , 'image/png' , 'image/webp' ) |
base64 (optional) | string | The base64-encoded image data example: '/9j/4AAQSkZJRgABAQAAAQABAAD' if you need data URI as the source for an Image element for example, you can use data:${type};base64,${base64} |
For more advanced usage check our example app.