https://github.com/meznaric/react-native-image-cropping

Wrapper around 3rd party library for image cropping on iOS
https://github.com/meznaric/react-native-image-cropping

Last synced: about 1 month ago
JSON representation

Wrapper around 3rd party library for image cropping on iOS

• Host: GitHub
• URL: https://github.com/meznaric/react-native-image-cropping
• Owner: meznaric
• Created: 2016-03-07T01:02:57.000Z (almost 9 years ago)
• Default Branch: master
• Last Pushed: 2018-07-31T02:58:55.000Z (over 6 years ago)
• Last Synced: 2024-03-15T01:55:24.949Z (10 months ago)
• Language: Objective-C
• Homepage:
• Size: 12.7 KB
• Stars: 59
• Watchers: 2
• Forks: 26
• Open Issues: 15
• Metadata Files:
  • Readme: README.md

Awesome Lists containing this project

README

        
Simple react-native image cropping library wrapper around [siong1987/TOCropViewController](https://github.com/siong1987/TOCropViewController)

![TOCropViewController](https://raw.githubusercontent.com/siong1987/TOCropViewController/master/screenshot.jpg)

## Installation

Supported only on iOS.

### Add it to your project

1. `npm install react-native-image-cropping --save`

2. In XCode, in the project navigator, right click `Libraries` ➜ `Add Files to [your project's name]`

3. Go to `node_modules` ➜ `react-native-image-cropping` and add `ReactNativeImageCropping.xcodeproj`

4. In XCode, in the project navigator, select your project. Add `libReactNativeImageCropping.a` to your project's `Build Phases` ➜ `Link Binary With Libraries`

5. Click `ReactNativeImageCropping.xcodeproj` in the project navigator and go the `Build Settings` tab. Make sure 'All' is toggled on (instead of 'Basic'). Look for `Header Search Paths` and make sure it contains both `$(SRCROOT)/../react-native/React` and `$(SRCROOT)/../../React` - mark both as `recursive`.

5. Re-run your project (`Cmd+R`)

### Setup trouble?

If you get stuck open an issue. It's the first time I've published react native package and I may have not provided all necessary information.

## Usage

### Import module

```javascript

const React = require('react-native');

const {ReactNativeImageCropping} = React.NativeModules;

```

### Crop the image

It is using RCTImageLoader so it should be able to crop any image that react knows how to load / display.

#### Without aspect ratio restriction:

```javascript

const originalImage = require('CrazyFlowers.jpg');

ReactNativeImageCropping

	.cropImageWithUrl(originalImage.uri)

    .then(image => {

		//Image is saved in NSTemporaryDirectory!

		//image = {uri, width, height}	

	},

	err => console.log(b));

```

#### Lock to specific aspect ratio:

Available aspect ratios:

```javascript

 - AspectRatioOriginal

 - AspectRatioSquare

 - AspectRatio3x2

 - AspectRatio5x4

 - AspectRatio4x3

 - AspectRatio5x4

 - AspectRatio7x5

 - AspectRatio16x9

```

Example:

```javascript

let aspectRatio = ReactNativeImageCropping.AspectRatioSquare;

ReactNativeImageCropping

    .cropImageWithUrlAndAspect(imageUrl, aspectRatio)

    .then(image => {

        //Image is saved in NSTemporaryDirectory!

        //image = {uri, width, height}  

    },

    err => console.log(b));

```