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CrossPlatform.swift
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CrossPlatform.swift
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//
// CrossPlatform.swift
//
//
// Created by Wang Wei on 2021/10/31.
//
import Foundation
#if canImport(UIKit)
import UIKit
public typealias PlatformDrivingTimer = DisplayTimer
public typealias PlatformView = UIView
public typealias PlatformImage = UIImage
var screenScale: CGFloat {
#if os(visionOS)
UITraitCollection.current.displayScale
#else
UIScreen.main.scale
#endif
}
extension Notification.Name {
static var applicationDidBecomeActive = UIApplication.didBecomeActiveNotification
}
extension UIView {
var backingLayer: CALayer { layer }
}
extension UIImage {
func recommendedLayerContentsScale(_ preferredContentsScale: CGFloat) -> CGFloat {
scale
}
func layerContents(forContentsScale layerContentsScale: CGFloat) -> Any? {
cgImage
}
}
#elseif canImport(AppKit)
import AppKit
public typealias PlatformDrivingTimer = NormalTimer
public typealias PlatformImage = NSImage
var screenScale: CGFloat { NSScreen.main?.backingScaleFactor ?? 1.0 }
extension Notification.Name {
static var applicationDidBecomeActive = NSApplication.didBecomeActiveNotification
}
open class PlatformView: NSView {
var backingLayer: CALayer { layer! }
public override init(frame: CGRect) {
super.init(frame: frame)
wantsLayer = true
}
required public init?(coder: NSCoder) {
super.init(coder: coder)
wantsLayer = true
}
}
extension NSImage {
convenience init?(data: Data, scale: CGFloat) {
self.init(data: data)
}
}
#else
public typealias PlatformDrivingTimer = NormalTimer
var screenScale: CGFloat { 1.0 }
#endif