React Native Zip Archive

Zip archive utility for react-native

Note: this project is under development and functionality will improve over time. Currently it provides only the bare minimum of functionality.

Installation

npm install react-native-zip-archive --save

Getting started - iOS

1. In XCode, in the project navigator right click Libraries ➜ Add Files to [your project's name]
2. Go to node_modules ➜ react-native-zip-archive and add RNZipArchive.xcodeproj
3. Add libRNZipArchive.a (from 'Products' under RNZipArchive.xcodeproj) to your project's Build Phases ➜ Link Binary With Libraries phase
4. Add the libz library to your target
5. Look for Header Search Paths and make sure it contains both $(SRCROOT)/../react-native/React and $(SRCROOT)/../../React - mark both as recursive
6. Run your project (Cmd+R)

Warning: If you're using rnpm to link this module, you also need manually link libz library to your target otherwise your project wouldn't compile.

Getting started - Android

• Edit android/settings.gradle to look like this (without the +):

  rootProject.name = 'MyApp'
  
  include ':app'
  
  + include ':react-native-zip-archive'
  + project(':react-native-zip-archive').projectDir = new File(rootProject.projectDir, '../node_modules/react-native-zip-archive/android')

• Edit android/app/build.gradle (note: app folder) to look like this:

  apply plugin: 'com.android.application'
  
  android {
    ...
  }
  
  dependencies {
    compile fileTree(dir: 'libs', include: ['*.jar'])
    compile 'com.android.support:appcompat-v7:23.0.0'
    compile 'com.facebook.react:react-native:0.16.+'
  + compile project(':react-native-zip-archive')
  }

• Edit your MainActivity.java (deep in android/app/src/main/java/...) to look like this (note two places to edit):

  package com.myapp;
  
  + import com.rnziparchive.RNZipArchivePackage;
  
  ....
  
    @Override
    protected List<ReactPackage> getPackages() {
      return Arrays.<ReactPackage>asList(
        new MainReactPackage(),
  +     new RNZipArchivePackage()
      );
    }
  
  }

Usage

require it in your file

const ZipArchive = require('react-native-zip-archive')

you may also want to use something like react-native-fs to access the file system (check its repo for more information)

const RNFS = require('react-native-fs')

API

unzip(source: string, target: string): Promise

unzip from source to target

Example

let sourcePath = 'path_to_your_zip_file'
let targetPath = RNFS.DocumentDirectoryPath

ZipArchive.unzip(sourcePath, targetPath)
.then(() => {
  console.log('unzip completed!')
})
.catch((error) => {
  console.log(error)
})

unzipAssets(assetPath: string, target: string): Promise

unzip file from Android assets folder to target path

Note: Android only.

assetPath is the relative path to the file inside the pre-bundled assets folder, e.g. folder/myFile.zip. Do not pass an absolute directory.

let assetPath = 'folder/myFile.zip' 
let targetPath = RNFS.DocumentDirectoryPath

ZipArchive.unzipAssets(assetPath, targetPath)
.then(() => {
  console.log('unzip completed!')
})
.catch((error) => {
  console.log(error)
})

subscribe(callback: ({progress: number})): EmitterSubscription

Subscribe to unzip progress callbacks. Useful for displaying a progress bar on your UI during the unzip process.

Your callback will passed an object with the following fields:

• progress (number) a value from 0 to 1 representing the progress of the unzip method. 1 is completed.

Note: Remember to unsubscribe! Run .remove() on the object returned by this method.

componentWillMount() {
    this.zipProgress = ZipArchive.subscribe((e)=>{
         this.setState({zipProgress: e.progress})
    });
}

componentWillUnmount() {
   // Important: Unsubscribe from the progress events
   this.zipProgress.remove()
}