Readium Kotlin Toolkit

Readium Mobile is a toolkit for ebooks, audiobooks and comics written in Swift & Kotlin.

This toolkit is a modular project, which follows the Readium Architecture. The different modules are found under readium/.

• shared – Shared Publication models and utilities
• streamer – Publication parsers and local HTTP server
• navigator – Plain Fragment and Activity classes rendering publications
• opds – Parsers for OPDS catalog feeds
• lcp – Service and models for Readium LCP

A Test App demonstrates how to integrate the Readium Kotlin toolkit in your own reading app

Using Readium

:question: Find documentation and API reference at readium.org/kotlin-toolkit.

Readium modules are distributed through JitPack. It's also possible to clone the repository (or a fork) and depend on the modules locally.

From the JitPack Maven repository

Make sure that you have the $readium_version property set in your root build.gradle and add the JitPack repository.

buildscript {
    ext.readium_version = '2.2.0'
}

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

Then, add the dependencies to the Readium modules you need in your app's build.gradle.

dependencies {
    implementation "com.github.readium.kotlin-toolkit:readium-shared:$readium_version"
    implementation "com.github.readium.kotlin-toolkit:readium-streamer:$readium_version"
    implementation "com.github.readium.kotlin-toolkit:readium-navigator:$readium_version"
    implementation "com.github.readium.kotlin-toolkit:readium-opds:$readium_version"
    implementation "com.github.readium.kotlin-toolkit:readium-lcp:$readium_version"
}

From a local Git clone

You may prefer to use a local Git clone if you want to contribute to Readium, or if you are using your own fork.

First, add the repository as a Git submodule of your app repository, then checkout the desired branch or tag:

git submodule add https://github.com/readium/kotlin-toolkit.git

Then, add the following to your project's settings.gradle file, altering the paths if needed. Keep only the modules you want to use.

include ':readium:shared'
project(':readium:shared').projectDir = file('kotlin-toolkit/readium/shared')

include ':readium:streamer'
project(':readium:streamer').projectDir = file('kotlin-toolkit/readium/streamer')

include ':readium:navigator'
project(':readium:navigator').projectDir = file('kotlin-toolkit/readium/navigator')

include ':readium:opds'
project(':readium:opds').projectDir = file('kotlin-toolkit/readium/opds')

include ':readium:lcp'
project(':readium:lcp').projectDir = file('kotlin-toolkit/readium/lcp')

You should now see the Readium modules appear as part of your project. You can depend on them as you would on any other local module:

dependencies {
    implementation project(':readium:shared')
    implementation project(':readium:streamer')
    implementation project(':readium:navigator')
    implementation project(':readium:opds')
    implementation project(':readium:lcp')
}

Building with Readium LCP

Using the toolkit with Readium LCP requires additional dependencies, including the binary liblcp provided by EDRLab. Contact EDRLab to request your private liblcp and the setup instructions.