Vulcan
Multi image downloader with priority in Swift
Features
- Very light
- Multi image download with priority
- Caching images
- Pure Swift
- Composable image
- Support WebP
| Single download | Multi download with priority |
|---|---|
 |
 |
Installation
CocoaPods
Setup CocoaPods:
$ gem install cocoapods
CocoaPods 1.1.0+ is required to build Vulcan
Podfile
platform :ios, '8.0'
use_frameworks!
target '<Your Target Name>' do
pod 'Vulcan'
end
Then, run the following command:
$ pod install
Carthage
Setup carthage:
$ brew update
$ brew install carthage
Cartfile
github "jinSasaki/Vulcan"
Usage
Image downloading and show
import Vulcan
// Single downloading
imageView.vl.setImage(url: URL(string: "/path/to/image")!)
// Multi downloading
// This image will be overridden by the image of higher priority URL.
imageView.vl.setImage(urls: [
.url(URL(string: "/path/to/image")!, priority: 100),
.url(URL(string: "/path/to/image")!, priority: 1000)
])
WebP image
If you installed via CocoaPods, add pod 'Vulcan/WebP'. If you installed via Carthage, add SwiftWebP.framework to project.
import Vulcan
import SwiftWebP // Only installed via Carthage
extension WebPDecoder: ImageDecoder {
public func decode(data: Data, response: HTTPURLResponse, options: ImageDecodeOptions?) throws -> Image {
let contentTypes = response.allHeaderFields.filter({ ($0.key as? String ?? "").lowercased() == "content-type" })
guard
let contentType = contentTypes.first,
let value = contentType.value as? String,
value == "image/webp",
let image = WebPDecoder.decode(data) else {
return try DefaultImageDecoder().decode(data: data, response: response, options: options)
}
return image
}
}
// Set decoder to shared ImageDownloader
Vulcan.defaultImageDownloader.decoder = WebPDecoder()
// Request image with URL
imageView.vl.setImage(url: URL(string: "/path/to/image")!)
Requirements
- iOS 9.0+
- Xcode 8.1+
- Swift 3.0.1+
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