I am making an attempt to determine why the standing bar would not present when utilizing AVPlayer inside LazyVStack and ScrollView for a lot of hours now so I made a minimal instance that simply must be copied and pasted:
import SwiftUI
import AVKit
struct ViewOffsetKey: PreferenceKey {
typealias Worth = CGFloat
static var defaultValue = CGFloat.zero
static func cut back(worth: inout Worth, nextValue: () -> Worth) {
worth += nextValue()
}
}
struct ContentView: View {
@State var toolbarHeight: CGFloat = 64
@State var freeScreenHeight: CGFloat = 0
@State var toolbarOffset: CGFloat = 0
@State var lastScrollOffset: CGFloat = 0
@State var startChecking: Bool = false
@State var participant = AVPlayer()
var videoUrl: String = "someExternal1:1ratioVideo"
init() {
UIScrollView.look().bounces = false
}
var physique: some View {
ZStack(alignment: .main){
VStack{
HStack(spacing: 10){
Textual content("toolbar")
Spacer()
}
.padding(.horizontal, 12.0)
.body(top: toolbarHeight)
.background(Coloration.inexperienced)
.padding(.backside, toolbarOffset)
.offset(y: toolbarOffset)
.zIndex(2)
Spacer()
}
.clipped()
.zIndex(2)
ScrollView(.vertical, showsIndicators: false){
LazyVStack(spacing: 0){
VStack{
}
.body(width: spherical(UIScreen.principal.bounds.width / 1.5), top: toolbarHeight + 8)
ForEach(1..<5) { index in
VideoPlayer(participant: participant)
.onAppear{
startChecking = true
}
.body(width: UIScreen.principal.bounds.width, top: UIScreen.principal.bounds.width)
.padding(.backside, 10)
}
}
.background(GeometryReader {
Coloration.clear.choice(key: ViewOffsetKey.self,
worth: -$0.body(in: .named("scroll")).origin.y)
})
.onPreferenceChange(ViewOffsetKey.self) {
if(startChecking){
if($0 > lastScrollOffset){
let howMuch = $0 - lastScrollOffset
if((toolbarOffset - howMuch) < -toolbarHeight){
toolbarOffset = -toolbarHeight
}else{
toolbarOffset -= howMuch
}
}else{
let howMuch = lastScrollOffset - $0
if((toolbarOffset + howMuch) > 0){
toolbarOffset = 0
}else{
toolbarOffset += howMuch
}
}
}
lastScrollOffset = $0
}
}
.body(top: freeScreenHeight)
}
.onAppear() {
participant = AVPlayer(url: URL(string: videoUrl)!)
}
.preferredColorScheme(.darkish)
.background(
GeometryReader { proxy in
Coloration.clear
.onAppear {
freeScreenHeight = UIScreen.principal.bounds.top - proxy.safeAreaInsets.high - proxy.safeAreaInsets.backside
}
}
)
.clipped()
}
}
What could possibly be the rationale for this bug?
