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A Swift property wrapper for retreiving images from asset bundles
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// inspired by https://stackoverflow.com/a/49205781/379776 and https://swiftbysundell.com/articles/property-wrappers-in-swift/ | |
import UIKit | |
/* | |
Add something like this to your podspec | |
s.resource_bundles = { | |
'Assets' => ['MyPod/Assets/**/*.{xcassets}'] | |
} | |
*/ | |
extension Bundle { | |
static var assetsBundle: Bundle { | |
let frameworkBundle = Bundle(for: MyClass.self) // use any class in your framework | |
let assetUrl = frameworkBundle.url(forResource: "Assets", withExtension: "bundle")! | |
return Bundle(url: assetUrl)! | |
} | |
} | |
@propertyWrapper struct ImageAssetRetreivable<UIImage> { | |
let imageName: String | |
init(_ imageName: String) { | |
self.imageName = imageName | |
} | |
var wrappedValue: UIImage { | |
return UIKit.UIImage(named: imageName, in: .assetsBundle, compatibleWith: nil) as! UIImage | |
} | |
} | |
class ImageHelper { | |
@ImageAssetRetreivable("MyImage") | |
static var myImage: UIImage | |
@ImageAssetRetreivable("MyOtherImage") | |
static var myOtherImage: UIImage | |
} |
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