93 lines
4.0 KiB
Swift
93 lines
4.0 KiB
Swift
//
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// CustomEmojiPickerInputView.swift
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// Mastodon
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//
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// Created by MainasuK Cirno on 2021-3-24.
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//
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import UIKit
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final class CustomEmojiPickerInputView: UIInputView {
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private(set) lazy var collectionView: UICollectionView = {
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let collectionView = UICollectionView(frame: .zero, collectionViewLayout: createLayout())
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collectionView.register(CustomEmojiPickerItemCollectionViewCell.self, forCellWithReuseIdentifier: String(describing: CustomEmojiPickerItemCollectionViewCell.self))
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collectionView.register(CustomEmojiPickerHeaderCollectionReusableView.self, forSupplementaryViewOfKind: String(describing: CustomEmojiPickerHeaderCollectionReusableView.self), withReuseIdentifier: String(describing: CustomEmojiPickerHeaderCollectionReusableView.self))
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collectionView.backgroundColor = .clear
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return collectionView
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}()
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let activityIndicatorView = UIActivityIndicatorView(style: .large)
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override init(frame: CGRect, inputViewStyle: UIInputView.Style) {
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super.init(frame: frame, inputViewStyle: inputViewStyle)
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_init()
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}
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required init?(coder: NSCoder) {
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super.init(coder: coder)
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_init()
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}
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}
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extension CustomEmojiPickerInputView {
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private func _init() {
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allowsSelfSizing = true
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activityIndicatorView.translatesAutoresizingMaskIntoConstraints = false
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addSubview(activityIndicatorView)
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NSLayoutConstraint.activate([
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activityIndicatorView.centerXAnchor.constraint(equalTo: centerXAnchor),
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activityIndicatorView.centerYAnchor.constraint(equalTo: centerYAnchor),
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])
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collectionView.translatesAutoresizingMaskIntoConstraints = false
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addSubview(collectionView)
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NSLayoutConstraint.activate([
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collectionView.topAnchor.constraint(equalTo: topAnchor),
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collectionView.leadingAnchor.constraint(equalTo: leadingAnchor),
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collectionView.trailingAnchor.constraint(equalTo: trailingAnchor),
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collectionView.bottomAnchor.constraint(equalTo: bottomAnchor),
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])
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activityIndicatorView.hidesWhenStopped = true
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activityIndicatorView.startAnimating()
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}
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}
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extension CustomEmojiPickerInputView {
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func createLayout() -> UICollectionViewLayout {
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let itemSize = NSCollectionLayoutSize(widthDimension: .absolute(CustomEmojiPickerItemCollectionViewCell.itemSize.width),
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heightDimension: .fractionalHeight(1.0))
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let item = NSCollectionLayoutItem(layoutSize: itemSize)
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item.edgeSpacing = NSCollectionLayoutEdgeSpacing(leading: .flexible(4), top: .flexible(4), trailing: .flexible(0), bottom: .flexible(0))
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let groupSize = NSCollectionLayoutSize(widthDimension: .fractionalWidth(1.0),
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heightDimension: .absolute(CustomEmojiPickerItemCollectionViewCell.itemSize.height))
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let group = NSCollectionLayoutGroup.horizontal(layoutSize: groupSize, subitems: [item])
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let section = NSCollectionLayoutSection(group: group)
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section.interGroupSpacing = 5
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section.contentInsetsReference = .readableContent
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section.contentInsets = NSDirectionalEdgeInsets(top: 10, leading: 0, bottom: 10, trailing: 0)
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let sectionHeader = NSCollectionLayoutBoundarySupplementaryItem(
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layoutSize: NSCollectionLayoutSize(widthDimension: .fractionalWidth(1.0),
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heightDimension: .estimated(44)),
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elementKind: String(describing: CustomEmojiPickerHeaderCollectionReusableView.self),
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alignment: .top)
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// sectionHeader.pinToVisibleBounds = true
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sectionHeader.zIndex = 2
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section.boundarySupplementaryItems = [sectionHeader]
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let layout = UICollectionViewCompositionalLayout(section: section)
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return layout
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}
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}
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extension CustomEmojiPickerInputView: UIInputViewAudioFeedback {
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var enableInputClicksWhenVisible: Bool {
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return true
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}
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}
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