61 lines
1.6 KiB
Swift
61 lines
1.6 KiB
Swift
//
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// CollectionView.swift
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// MVMCoreUI
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//
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// Created by Scott Pfeil on 4/10/20.
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// Copyright © 2020 Verizon Wireless. All rights reserved.
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//
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import Foundation
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open class CollectionView: UICollectionView, MVMCoreViewProtocol {
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/// A block that gets called on tableview frame changes
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public var frameChangeAction: (() -> Void)?
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private var previousFrame = CGRect.zero
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private var initialSetupPerformed = false
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private func initialSetup() {
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if !initialSetupPerformed {
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initialSetupPerformed = true
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setupView()
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}
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}
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public override init(frame: CGRect, collectionViewLayout layout: UICollectionViewLayout) {
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super.init(frame: frame, collectionViewLayout: layout)
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initialSetup()
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}
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required public init?(coder: NSCoder) {
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super.init(coder: coder)
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initialSetup()
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}
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open override func layoutSubviews() {
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super.layoutSubviews()
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if frame != previousFrame {
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frameChangeAction?()
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}
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previousFrame = frame
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}
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public func updateView(_ size: CGFloat) {
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for cell in visibleCells {
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(cell as? MVMCoreViewProtocol)?.updateView(size)
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}
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collectionViewLayout.invalidateLayout()
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}
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public func setupView() {
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translatesAutoresizingMaskIntoConstraints = false
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showsHorizontalScrollIndicator = false
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showsVerticalScrollIndicator = false
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backgroundColor = .clear
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isAccessibilityElement = false
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contentInsetAdjustmentBehavior = .never
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}
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}
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