79 lines
2.3 KiB
Swift
79 lines
2.3 KiB
Swift
//
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// FilepathImageProvider.swift
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// lottie-swift
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//
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// Created by Brandon Withrow on 2/1/19.
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//
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import Foundation
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#if canImport(UIKit)
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import UIKit
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/// Provides an image for a lottie animation from a provided Bundle.
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public class FilepathImageProvider: AnimationImageProvider {
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// MARK: Lifecycle
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/// Initializes an image provider with a specific filepath.
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///
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/// - Parameter filepath: The absolute filepath containing the images.
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/// - Parameter contentsGravity: The contents gravity to use when rendering the images.
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///
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public init(filepath: String, contentsGravity: CALayerContentsGravity = .resize) {
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self.filepath = URL(fileURLWithPath: filepath)
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self.contentsGravity = contentsGravity
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}
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/// Initializes an image provider with a specific filepath.
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///
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/// - Parameter filepath: The absolute filepath containing the images.
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/// - Parameter contentsGravity: The contents gravity to use when rendering the images.
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///
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public init(filepath: URL, contentsGravity: CALayerContentsGravity = .resize) {
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self.filepath = filepath
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self.contentsGravity = contentsGravity
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}
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// MARK: Public
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public func imageForAsset(asset: ImageAsset) -> CGImage? {
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if
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asset.name.hasPrefix("data:"),
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let url = URL(string: asset.name),
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let data = try? Data(contentsOf: url),
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let image = UIImage(data: data)
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{
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return image.cgImage
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}
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let directPath = filepath.appendingPathComponent(asset.name).path
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if FileManager.default.fileExists(atPath: directPath) {
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return UIImage(contentsOfFile: directPath)?.cgImage
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}
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let pathWithDirectory = filepath.appendingPathComponent(asset.directory).appendingPathComponent(asset.name).path
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if FileManager.default.fileExists(atPath: pathWithDirectory) {
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return UIImage(contentsOfFile: pathWithDirectory)?.cgImage
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}
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LottieLogger.shared.warn("Could not find image \"\(asset.name)\" in bundle")
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return nil
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}
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public func contentsGravity(for _: ImageAsset) -> CALayerContentsGravity {
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contentsGravity
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}
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// MARK: Internal
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let filepath: URL
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let contentsGravity: CALayerContentsGravity
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}
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extension FilepathImageProvider: Equatable {
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public static func ==(_ lhs: FilepathImageProvider, _ rhs: FilepathImageProvider) -> Bool {
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lhs.filepath == rhs.filepath
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}
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}
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#endif
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