react-native-pure-photo-crop

This is a module which help you crop an image.

Installation

npm i react-native-pure-photo-crop
// link below 0.60
react-native link react-native-pure-photo-crop

Setup

iOS

Modify AppDelegate.m

#import <RNTPhotoCropModule.h>

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {

  [RNTPhotoCropModule init:^(NSString *url, void (^ onComplete)(UIImage *)) {
    // add your image loader here
  }];

  return YES;
}

Android

Add jitpack in your android/build.gradle at the end of repositories:

allprojects {
  repositories {
    ...
    maven { url 'https://jitpack.io' }
  }
}

Modify MainApplication

class MainApplication : Application(), ReactApplication {

  override fun onCreate() {
    super.onCreate()

    RNTPhotoCropModule.init { context, url, onComplete ->

        // load image by url
        // onComplete.invoke(null): load error
        // onComplete.invoke(bitmap): load success

    }

  }

}

Usage

import photoCrop from 'react-native-pure-photo-crop'

// At first, make sure you have the permissions.
// ios: nothing
// android: WRITE_EXTERNAL_STORAGE

// If you don't have these permissions, you can't call open method.

photoCrop.open({
  url: 'image url or file path',
  width: 300,
  height: 200,
  // optional
  cancelButtonTitle: '取消',
  // optional
  resetButtonTitle: '重置',
  // optional
  submitButtonTitle: '确定'
})
.then(file => {
  let { path, size, width, height } = file

})
.catch(error => {
  // click cancel button
})

// compress an image without ui
photoCrop.compress({
  // image orignal info
  path: '/User/xx/xx.jpg',
  size: 10000,
  width: 1000,
  height: 600,

  // compress limit info you can accepted
  maxSize: 100 * 1024,
  maxWidth: 3000,
  maxHeight: 3000,

  // compress quality, 0 - 1
  quality: 0.5
})
.then(file => {
  let { path, size, width, height } = file

})
.catch(error => {
  let { code } = error

})