CMTime is a structure that represents time.
timescaleは1秒を何分割するか
valueはそのtimescale内でどの数値分進むか
例） value: 600, timescale: 600 の場合、600/600 で1秒を表す
月: 2022年5月
struct PlayController: View {
var buttonSize:CGFloat = 32
var body: some View {
HStack(spacing: 30) {
Button {
} label: {
Image(systemName: "stop.fill")
.resizable()
.frame(width: buttonSize, height: buttonSize)
}
Button {
} label: {
Image(systemName: "play.fill")
.resizable()
.frame(width: buttonSize, height: buttonSize)
}
Button {
} label: {
Image(systemName: "backward.end.fill")
.resizable()
.frame(width: buttonSize, height: buttonSize)
}
Button {
} label: {
Image(systemName: "forward.end.fill").resizable()
.resizable()
.frame(width: buttonSize, height: buttonSize)
}
}
}
}import UIKit
import SwiftUI
class ViewController: UIViewController {
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view.
view.backgroundColor = .red
constrainControllers()
}
private func constrainControllers() {
let controlSwiftUIView = PlayController()
let controller = UIHostingController(rootView: controlSwiftUIView)
controller.view.translatesAutoresizingMaskIntoConstraints = false
self.addChild(controller)
self.view.addSubview(controller.view)
controller.didMove(toParent: self)
controller.view.heightAnchor.constraint(equalToConstant: 100).isActive = true
controller.view.leadingAnchor.constraint(equalTo: self.view.layoutMarginsGuide.leadingAnchor).isActive = true
controller.view.trailingAnchor.constraint(equalTo: self.view.layoutMarginsGuide.trailingAnchor).isActive = true
controller.view.bottomAnchor.constraint(equalTo: self.view.layoutMarginsGuide.bottomAnchor).isActive = true
}
}let constraints = [
view.centerXAnchor.constraint(equalTo: superview.centerXAnchor),
view.centerYAnchor.constraint(equalTo: superview.centerYAnchor),
view.widthAnchor.constraint(equalToConstant: 100),
view.heightAnchor.constraint(equalTo: view.widthAnchor)
]
NSLayoutConstraint.activate(constraints)extension UIView {
/* Constraint creation conveniences. See NSLayoutAnchor.h for details.
*/
open var leadingAnchor: NSLayoutXAxisAnchor { get }
open var trailingAnchor: NSLayoutXAxisAnchor { get }
open var leftAnchor: NSLayoutXAxisAnchor { get }
open var rightAnchor: NSLayoutXAxisAnchor { get }
open var topAnchor: NSLayoutYAxisAnchor { get }
open var bottomAnchor: NSLayoutYAxisAnchor { get }
open var widthAnchor: NSLayoutDimension { get }
open var heightAnchor: NSLayoutDimension { get }
open var centerXAnchor: NSLayoutXAxisAnchor { get }
open var centerYAnchor: NSLayoutYAxisAnchor { get }
open var firstBaselineAnchor: NSLayoutYAxisAnchor { get }
open var lastBaselineAnchor: NSLayoutYAxisAnchor { get }
}