04-SlideShowDemo

• basic slide show

• previous/next buttons to show slides

• using Timer slide show with play/pause buttons

  • https://www.hackingwithswift.com/quick-start/swiftui/how-to-use-a-timer-with-swiftui

• PlayPauseView: setting up AudioDJ as environmentObject so that audio can presists between views

Changes

• Track data using @Observable, @Environment, .environment(
• replaces @State, @StateObject and @EnvironmentObject