Question posted in 
Yesterday I installed cocoapods and the firebase dependencies on my musicplayer app I am doing for a school project. I always create new branches to try it out in case it does not work. I am using the latest version of Xcode and the latest versions of firebase with mac osx Big Sur.
I have a couple of structs in my ContentView for example SongCell, Album, Song & AlbumArt.
I then have another swift file called PlayerView where I designed the view for the player when you play songs. There I have a Vstack where the Text and AlbumArt are being displayed. All this worked without any problems until I installed the podfile and connected the app to firebase. Then all of sudden I cannot build or run the app because ‘AlbumArt cannot be found in scope’ inside the PlayerView file.
Summary:
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I have a struct called AlbumArt inside the ContentView
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This struct is also used inside the PlayerView example:
AlbumArt(album: album, isWithText: false)
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Before I installed cocoapods and firebase, everything worked fine
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Now it ‘cannot find AlbumArt in scope’ inside the PlayerView
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It seems like whatever struct I want to use from ContentView into the PlayerView, I get the ‘cannot find in scope’ so it seems to be a problem when using the structs inside the playerViews.
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How do I solve this?
Thanks in advance. I will post the code from ContentView, PlayerView and the podfile below.
Code in ContentView:
import SwiftUI
import Firebase
struct Album : Hashable {
var id = UUID()
var name : String
var image : String
var songs : [Song]
}
struct Song : Hashable {
var id = UUID()
var name : String
var time : String
}
struct ContentView: View {
@ObservedObject var data : MyData
@State private var currentAlbum : Album?
var body: some View {
NavigationView{
ScrollView{
ScrollView(.horizontal, showsIndicators: false, content: {
LazyHStack{
ForEach(self.data.albums, id:.self, content: {
album in
AlbumArt(album: album, isWithText: true).onTapGesture {
self.currentAlbum = album
}
})
}
})
LazyVStack{
if self.data.albums.first == nil {
EmptyView()
}else {
ForEach((self.currentAlbum?.songs ?? self.data.albums.first?.songs) ??
[Song(name:"Song 1", time: "3:11"),
Song(name:"Song 2", time: "3:11"),
Song(name:"Song 3", time: "3:11"),
Song(name:"Song 4", time: "3:11"),
Song(name:"Song 5", time: "3:11"),
Song(name:"Song 6", time: "3:11")],
id: .self,
content: {
song in
SongCell(album: currentAlbum ?? self.data.albums.first!, song: song)
})
}
}.navigationTitle("Sinemark")
}
}
}
struct AlbumArt : View{
var album : Album
var isWithText : Bool
var body: some View {
ZStack (alignment: .bottom, content: {
Image(album.image)
.resizable()
.aspectRatio(contentMode: .fill)
.frame(width: 170, height: 200, alignment: .center)
if isWithText == true {
ZStack {
Blur(style: .dark)
Text(album.name).foregroundColor(.white)
}.frame(height: 60, alignment: /*@START_MENU_TOKEN@*/.center/*@END_MENU_TOKEN@*/)
}
}).frame(width: 170, height: 200,alignment: .center) .clipped().cornerRadius(20).shadow(radius: 10).padding(20)
}
}
struct SongCell : View{
var album : Album
var song : Song
var body: some View{
NavigationLink(
destination: PlayerView(album: album, song: song), label: {
HStack{
ZStack{
Circle().frame(width: 50, height: 50, alignment: /*@START_MENU_TOKEN@*/.center/*@END_MENU_TOKEN@*/).foregroundColor(/*@START_MENU_TOKEN@*/.blue/*@END_MENU_TOKEN@*/)
Circle().frame(width: 20, height: 20, alignment: /*@START_MENU_TOKEN@*/.center/*@END_MENU_TOKEN@*/).foregroundColor(.white)
}
Text(song.name).bold()
Spacer()
Text(song.time)
}.padding(20)
}).buttonStyle(PlainButtonStyle())
}
}
}
Code in PlayerView:
import Foundation
import SwiftUI
struct PlayerView : View {
var album : Album
var song : Song
@State var isPlaying : Bool = false
var body: some View {
ZStack {
Image(album.image).resizable().edgesIgnoringSafeArea(.all)
Blur(style: .dark).edgesIgnoringSafeArea(.all)
VStack{
Spacer()
AlbumArt(album: album, isWithText: false)
Text(song.name).font(.title).fontWeight(.light).foregroundColor(.white)
Spacer()
ZStack {
Color.white.cornerRadius(20).shadow(radius: 10)
HStack {
Button(action: self.previous, label: {
Image(systemName: "arrow.left.circle").resizable()
}).frame(width: 50, height: 50, alignment: .center).foregroundColor(Color.black.opacity(0.2))
Button(action: self.playPause, label: {
Image(systemName: isPlaying ? "pause.circle.fill" : "play.circle.fill").resizable()
}).frame(width: 70, height: 70, alignment: .center).padding()
Button(action: self.next, label: {
Image(systemName: "arrow.right.circle").resizable()
}).frame(width: 50, height: 50, alignment: .center).foregroundColor(Color.black.opacity(0.2))
}
}.padding().edgesIgnoringSafeArea(.bottom).frame(height: 200, alignment: .center)
}
}
}
func playPause() {
self.isPlaying.toggle()
}
func next () {
}
func previous () {
}
}
My podfile:
# Uncomment the next line to define a global platform for your project
platform :ios, '14.4'
target 'BandApp_MusicPlayer' do
# Comment the next line if you don't want to use dynamic frameworks
use_frameworks!
# Pods for BandApp_MusicPlayer
pod 'Firebase/Firestore'
pod 'Firebase/Storage'
pod 'Firebase/Analytics'
target 'BandApp_MusicPlayerTests' do
inherit! :search_paths
# Pods for testing
end
target 'BandApp_MusicPlayerUITests' do
# Pods for testing
end
end
2
Answers
I think I see you problem – you have placeholder code in your AlbumArt class:
/*@START_MENU_TOKEN@*/.center/*@END_MENU_TOKEN@*/It appears in this part of your code:
Let me know if that fixes it!
Your
AlbumArtstruct definition is internal to theContentViewstruct, so it is out of scope from the perspective ofPlayerView. You might as well do the same for SongCell as well, you don’t have to define it inside theContentViewstruct.If you move that
structdefinition to the root level of your swift file, it will compile.