Simple Image Loader 
Modern image loading library for Android. Simple by design, powerful under the hood.
- Kotlin: Simple Image Loader is Kotlin-native and uses no any dependencies except myself Disk LRU Cache
- Fast: contains lots of optimizations: memory cache, disk cache, images downsampling, requests cancelling and more
- Lightweight: ~18Kb
😄 - Simple: minimal boilerplate, simple API, based on every-day needs, extensible for features you need
- Flexible: not found something you need, like need FTP transport, maybe custom memory or disk caching, SVG displaying support, etc? You can easily add it on your project, because Simple Image Loader is modular and full of simple abstractions.
Gradle
Step 1. Add this in your root build.gradle
allprojects {
repositories {
maven { url 'https://jitpack.io' }
}
}
Step 2. Add the dependency
dependencies {
compile 'com.github.solkin:simple-image-loader:VERSION'
}
If you like to stay on the bleeding edge, or use certain commit as your dependency, you can use the short commit hash or anyBranch-SNAPSHOT as the version.
Demo
Please see the demo app for library usage example.
Quick Start
To load an image into an ImageView, use the load extension function:
// URL
imageView.load("https://www.example.com/image.jpg")
// File
imageView.load("file:///path/to/image.jpg")
// Asset
imageView.load("file:///android_asset/image.jpg")
// Content
imageView.load("content://media/external_primary/images/media/90")
Requests can be configured with an optional trailing lambda:
imageView.load("https://www.example.com/image.jpg") {
centerCrop()
withPlaceholder(R.drawable.ic_placeholder)
whenError(R.drawable.ic_error, redColor)
}
Also, you can add options by creating extension functions:
fun Handlers<ImageView>.centerInside() = apply {
successHandler { viewHolder, result ->
with(viewHolder.get()) {
setImageDrawable(null)
scaleType = ImageView.ScaleType.CENTER_INSIDE
colorFilter = null
setImageDrawable(result.getDrawable())
}
}
}
Image Loader
imageView.load uses the singleton SimpleImageLoader. The singleton SimpleImageLoader can be accessed using an extension function:
val imageLoader = context.imageLoader()
To configure custom singleton SimpleImageLoader, run context.initImageLoader prior to another calls and change any module you need:
val imageLoader = context.initImageLoader(
decoder = BitmapDecoder(), // Maybe, you need extraordinary images decoder?
fileProvider = FileProviderImpl(
cacheDir,
DiskCacheImpl( // LRU disk cache for your images
DiskLruCache.create(cacheDir, 15728640L)
),
UrlLoader(), // vararg; http/https scheme support
FileLoader(assets), // vararg; file scheme support
ContentLoader(contentResolver) // vararg; content scheme support
),
memoryCache = MemoryCacheImpl(), // Caching images on memory
mainExecutor = MainExecutorImpl(), // Simple executor for main thread
backgroundExecutor = Executors.newFixedThreadPool(10) // Executor service for background operations
)
Requirements
- Min SDK 14+
- Java 8+
License
MIT License
Copyright (c) 2021 Igor Solkin
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
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