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78 lines
1.6 KiB
78 lines
1.6 KiB
//
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// AnimationViewBase.swift
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// lottie-swift-iOS
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//
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// Created by Brandon Withrow on 2/6/19.
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//
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#if os(iOS) || os(tvOS) || os(watchOS) || targetEnvironment(macCatalyst)
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import UIKit
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/// The base view for `AnimationView` on iOS, tvOS, watchOS, and macCatalyst.
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///
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/// Enables the `AnimationView` implementation to be shared across platforms.
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public class AnimationViewBase: UIView {
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// MARK: Public
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public override var contentMode: UIView.ContentMode {
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didSet {
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setNeedsLayout()
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}
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}
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public override func didMoveToWindow() {
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super.didMoveToWindow()
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animationMovedToWindow()
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}
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public override func layoutSubviews() {
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super.layoutSubviews()
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layoutAnimation()
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}
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// MARK: Internal
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var viewLayer: CALayer? {
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layer
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}
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var screenScale: CGFloat {
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UIScreen.main.scale
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}
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func layoutAnimation() {
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// Implemented by subclasses.
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}
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func animationMovedToWindow() {
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// Implemented by subclasses.
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}
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func commonInit() {
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contentMode = .scaleAspectFit
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clipsToBounds = true
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NotificationCenter.default.addObserver(
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self,
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selector: #selector(animationWillEnterForeground),
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name: UIApplication.willEnterForegroundNotification,
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object: nil)
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NotificationCenter.default.addObserver(
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self,
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selector: #selector(animationWillMoveToBackground),
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name: UIApplication.didEnterBackgroundNotification,
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object: nil)
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}
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@objc
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func animationWillMoveToBackground() {
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// Implemented by subclasses.
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}
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@objc
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func animationWillEnterForeground() {
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// Implemented by subclasses.
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}
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}
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#endif
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