React Native Compress Image

React Native Compress Image for Android

NOTE: The iOS side of this module will be included when i have figured it out.

Installation

npm install --save react-native-compress-image

react-native link react-native-compress-image

NOTE: For Android, you will still have to manually update the AndroidManifest.xml (as below) in order to use Scheduled Notifications.

Android manual Installation

In your AndroidManifest.xml

<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"/>
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>

In android/settings.gradle

include ':react-native-compress-image'
project(':react-native-compress-image').projectDir = new File(rootProject.projectDir, '../node_modules/react-native-compress-image/android')

in android/app/build.gradle

dependencies {
    compile project(':react-native-compress-image')  // <--- Add package to dependencies
    compile fileTree(dir: "libs", include: ["*.jar"])
    compile "com.android.support:appcompat-v7:23.0.1"
    compile "com.facebook.react:react-native:+"
    ....
}

in MainApplication.java:

import com.emekalites.react.compress.image.ImageCompressPackage;  // <--- Import Package

public class MainApplication extends Application implements ReactApplication {

  private final ReactNativeHost mReactNativeHost = new ReactNativeHost(this) {
      @Override
      protected boolean getUseDeveloperSupport() {
        return BuildConfig.DEBUG;
      }

      @Override
      protected List<ReactPackage> getPackages() {
      	return Arrays.<ReactPackage>asList(
          new MainReactPackage(),
          new ImageCompressPackage() 		// <---- Add the Package
        );
      }
  };
}

Usage

import CompressImage from 'react-native-compress-image';

CompressImage.createCompressedImage(imageUri, appDirectory).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.
});

CompressImage.createCustomCompressedImage(imageUri, appDirectory, maxWidth, maxHeight, quality).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 compress a photo from the Camera Roll.

API

promise createCompressedImage(imageUri, appDirectory)

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

promise createCustomCompressedImage(imageUri, appDirectory, maxWidth, maxHeight, quality)

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

Credits

https://github.com/zetbaitsu/Compressor