added cover view

MusicPlayer Watch App/ContentView.swift

@@ -35,11 +35,15 @@ class ListViewModel: ObservableObject {
 
 struct ContentView: View {
     @ObservedObject var music = ListViewModel()
+    @State var pushState = false
+    @State var geo :CGSize = .zero
+    @State var _curr_sel_music : IDStr = IDStr()
     var body: some View {
-        
+        GeometryReader { geometry in
+            NavigationView(){
                 List() {
                     ForEach(music.music) { m in
-                    
+                        VStack(){
                             Button(m.s, action: {
                                 let idx = music.music.firstIndex { s in
                                     s.s == m.s
@@ -57,13 +61,22 @@ struct ContentView: View {
                                         m.m!.seek(to: .zero)
                                     }
                                 }
-                            
+                                pushState = true
+                                _curr_sel_music = m
                             }).ignoresSafeArea(.all).cornerRadius(.zero).padding(.zero).frame(maxHeight: CGFloat(50)).foregroundColor(.white)
                             
+                            NavigationLink(destination: PlaybackView(parent:self, music: _curr_sel_music), isActive: $pushState) {
+                                EmptyView()
+                            }
                         }
-                
                     }
                 }
+            }.onAppear {
+                geo = geometry.size
+            }
+        }
+        }
+     
     var player : AVQueuePlayer? = nil
     
     init() {
@@ -127,6 +140,7 @@ struct ContentView: View {
             let file_url = URL(filePath: dir + "/Documents/" + filename)
             let asset = AVAsset(url: file_url)
             let idstr = IDStr()
+            let geo = self.geo
             asset.loadMetadata(for: .iTunesMetadata) {
                 items, b in
                 for i in items! {
@@ -134,6 +148,9 @@ struct ContentView: View {
                         Task{
                             let imageData = try await i.load(.dataValue)
                             idstr.art = Image(uiImage: UIImage(data: imageData!)!)
+                            if (idstr.art != nil) {
+                                idstr.art!.resizable().scaledToFill().frame(width: geo.width, height: geo.height)
+                            }
                         }
                     }
                 }

MusicPlayer Watch App/PlaybackView.swift

@@ -8,12 +8,20 @@
 import SwiftUI
 
 struct PlaybackView: View {
+    
+    var placeholder: Image? = nil
+
    var body: some View {
-        Text(/*@START_MENU_TOKEN@*/"Hello, World!"/*@END_MENU_TOKEN@*/)
+           placeholder == nil ?
+               nil : placeholder!.resizable().scaledToFill()
+       
    }
-    init() {}
-    init(parent:ContentView) {
     
+    init() {}
+    init(parent:ContentView, music: IDStr) {
+        if music.art != nil {
+            self.placeholder = music.art!
+        }
     }
 }