forked from zelo72/mastodon-ios
122 lines
4.7 KiB
Swift
122 lines
4.7 KiB
Swift
//
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// MosaicPlayerView.swift
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// Mastodon
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//
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// Created by xiaojian sun on 2021/3/10.
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//
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import AVKit
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import UIKit
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final class MosaicPlayerView: UIView {
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static let cornerRadius: CGFloat = 8
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private let container = UIView()
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private let touchBlockingView = TouchBlockingView()
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private var containerHeightLayoutConstraint: NSLayoutConstraint!
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let playerViewController = AVPlayerViewController()
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let gifIndicatorLabel: UILabel = {
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let label = UILabel()
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label.font = .systemFont(ofSize: 16, weight: .heavy)
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label.text = "GIF"
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label.textColor = .white
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return label
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}()
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override init(frame: CGRect) {
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super.init(frame: frame)
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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 MosaicPlayerView {
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private func _init() {
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container.translatesAutoresizingMaskIntoConstraints = false
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addSubview(container)
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containerHeightLayoutConstraint = container.heightAnchor.constraint(equalToConstant: 162).priority(.required - 1)
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NSLayoutConstraint.activate([
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container.topAnchor.constraint(equalTo: topAnchor),
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container.leadingAnchor.constraint(equalTo: leadingAnchor),
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trailingAnchor.constraint(equalTo: container.trailingAnchor),
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bottomAnchor.constraint(equalTo: container.bottomAnchor),
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containerHeightLayoutConstraint,
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])
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addSubview(gifIndicatorLabel)
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gifIndicatorLabel.translatesAutoresizingMaskIntoConstraints = false
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NSLayoutConstraint.activate([
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gifIndicatorLabel.bottomAnchor.constraint(equalTo: bottomAnchor, constant: 4),
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gifIndicatorLabel.trailingAnchor.constraint(equalTo: trailingAnchor)
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])
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// will not influence full-screen playback
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playerViewController.view.layer.masksToBounds = true
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playerViewController.view.layer.cornerRadius = MosaicPlayerView.cornerRadius
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playerViewController.view.layer.cornerCurve = .continuous
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}
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}
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extension MosaicPlayerView {
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func reset() {
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// note: set playerViewController.player pause() and nil in data source configuration process make reloadData not break playing
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gifIndicatorLabel.removeFromSuperview()
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playerViewController.willMove(toParent: nil)
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playerViewController.view.removeFromSuperview()
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playerViewController.removeFromParent()
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container.subviews.forEach { subview in
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subview.removeFromSuperview()
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}
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}
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func setupPlayer(aspectRatio: CGSize, maxSize: CGSize, parent: UIViewController?) -> AVPlayerViewController {
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reset()
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touchBlockingView.translatesAutoresizingMaskIntoConstraints = false
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container.addSubview(touchBlockingView)
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NSLayoutConstraint.activate([
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touchBlockingView.topAnchor.constraint(equalTo: container.topAnchor),
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touchBlockingView.leadingAnchor.constraint(equalTo: container.leadingAnchor),
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touchBlockingView.bottomAnchor.constraint(equalTo: container.bottomAnchor),
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])
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let rect = AVMakeRect(
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aspectRatio: aspectRatio,
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insideRect: CGRect(origin: .zero, size: maxSize)
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)
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parent?.addChild(playerViewController)
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playerViewController.view.translatesAutoresizingMaskIntoConstraints = false
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touchBlockingView.addSubview(playerViewController.view)
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parent.flatMap { playerViewController.didMove(toParent: $0) }
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NSLayoutConstraint.activate([
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playerViewController.view.topAnchor.constraint(equalTo: touchBlockingView.topAnchor),
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playerViewController.view.leadingAnchor.constraint(equalTo: touchBlockingView.leadingAnchor),
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playerViewController.view.trailingAnchor.constraint(equalTo: touchBlockingView.trailingAnchor),
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playerViewController.view.bottomAnchor.constraint(equalTo: touchBlockingView.bottomAnchor),
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touchBlockingView.widthAnchor.constraint(equalToConstant: floor(rect.width)).priority(.required - 1),
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])
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containerHeightLayoutConstraint.constant = floor(rect.height)
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containerHeightLayoutConstraint.isActive = true
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gifIndicatorLabel.translatesAutoresizingMaskIntoConstraints = false
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touchBlockingView.addSubview(gifIndicatorLabel)
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NSLayoutConstraint.activate([
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touchBlockingView.trailingAnchor.constraint(equalTo: gifIndicatorLabel.trailingAnchor, constant: 8),
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touchBlockingView.bottomAnchor.constraint(equalTo: gifIndicatorLabel.bottomAnchor, constant: 8),
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])
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return playerViewController
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}
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}
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