README.md

Lazy

Lazy initialization helper.

Download

dependencies {
    implementation "dev.rikka.rikkax.lazy:lazy:<version>"
}

Dependencies included (If you have concerns about file size)

• androidx.annotation:annotation

Introduction

The purpose library is to use Kotlin-like Lazy in Java only projects/libraries. The design and internal implementation is close to Kotlin Lazy.

If your are already using Kotlin, you don't need to use this library.

Usage

This library has a rikka.lazy.Lazy interface and all implementations are its subclass.

There two implementation, rikka.lazy.SynchronizedLazy (thread-safe version using locks inside) and rikka.lazy.UnsafeLazy (no thread-safe version).

// Create a UnsafeLazy instance
Lazy<Object> lazy = new UnsafeLazy<>(() -> new Object());

// Get the value
Object value = lazy.get();

// Check if the value is initialized
lazy.isInitialized();

// Create a SynchronizedLazy instance
Lazy<Object> lazy = new SynchronizedLazy<>(() -> new Object());

// Create a SynchronizedLazy instance with a custom lock
Object lock = new Object();
Lazy<Object> lazy = new SynchronizedLazy<>(() -> new Object(), lock);