Mark Goldin
44 lines
944 B
Swift
44 lines
944 B
Swift
//
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// MDisplayLink_iOS.swift
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// Pods
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//
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// Created by Victor Sukochev on 28/08/2017.
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//
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//
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#if os(iOS)
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import UIKit
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class MDisplayLink: MDisplayLinkProtocol {
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private var displayLink: CADisplayLink?
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private var onUpdate: (() -> Void)?
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// MARK: - Lifecycle
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deinit {
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displayLink?.invalidate()
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}
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// MARK: - MDisplayLinkProtocol
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func startUpdates(_ onUpdate: @escaping () -> Void) {
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self.onUpdate = onUpdate
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displayLink = CADisplayLink(target: self, selector: #selector(updateHandler))
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if #available(iOS 10.0, *) {
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displayLink?.preferredFramesPerSecond = 60
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} else {
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displayLink?.frameInterval = 1
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}
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displayLink?.add(to: RunLoop.current, forMode: RunLoop.Mode.default)
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}
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func invalidate() {
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displayLink?.invalidate()
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}
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// MARK: - Private
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@objc func updateHandler() {
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onUpdate?()
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}
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}
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#endif
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