How to set the background of a View in SwiftUI - ios

Question

I'm making a swiftui app, I have a NavigationView that contains a VStack and a List inside.
I've tried to put the following line of code in a lot of places .background(Color.blue) but it had no effect anywhere (nothing happened).
How can I set a background for the view itself?
I know it’s a very simple thing, but it doesn’t work out at all...
This is my code:
struct ContentView: View {
#Environment(\.managedObjectContext) var managedObjectContext
#FetchRequest(entity: Todo.entity(), sortDescriptors: [NSSortDescriptor(keyPath: \Todo.name, ascending: true)]) var todos: FetchedResults<Todo>
#State private var showingAddTodoView: Bool = false
#State private var animatingButton: Bool = false
var body: some View {
NavigationView {
ZStack {
List {
ForEach(self.todos, id: \.self) { todo in
HStack {
Circle()
.frame(width: 12, height: 12, alignment: .center)
.foregroundColor(self.colorize(priority: todo.priority ?? "Normal"))
Text(todo.name ?? "Unknown")
.fontWeight(.semibold)
Spacer()
Text(todo.priority ?? "Unkown")
.font(.footnote)
.foregroundColor(Color(UIColor.systemGray2))
.padding(3)
.frame(minWidth: 62)
.overlay(
Capsule().stroke(Color(self.colorize(priority: todo.priority ?? "Normal")), lineWidth: 0.75)
)
Spacer()
Image(systemName: todo.completed ? "checkmark.square": "square")
.foregroundColor(todo.completed ? .green : .black)
.onTapGesture {
self.updateTodo(todo)
}
}
.padding(.vertical, 10)
}
.onDelete(perform: deleteTodo)
}
.navigationBarTitle("Todos", displayMode: .inline)
.navigationBarItems(
leading: EditButton(),
trailing:
Button(action: {
self.showingAddTodoView.toggle()
}) {
Image(systemName: "plus")
}
.sheet(isPresented: $showingAddTodoView) {
AddTodoView().environment(\.managedObjectContext, self.managedObjectContext)
}
)
if todos.count == 0 {
NoTodosView()
}
}
.sheet(isPresented: $showingAddTodoView) {
AddTodoView().environment(\.managedObjectContext, self.managedObjectContext)
}
.overlay(
ZStack {
Group {
Circle()
.fill(Color.blue)
.opacity(self.animatingButton ? 0.2 : 0)
.scaleEffect(self.animatingButton ? 1 : 0)
.frame(width: 68, height: 68, alignment: .center)
Circle()
.fill(Color.blue)
.opacity(self.animatingButton ? 0.15 : 0)
.scaleEffect(self.animatingButton ? 1 : 0)
.frame(width: 88, height: 88, alignment: .center)
}
.animation(Animation.easeInOut(duration: 2).repeatForever(autoreverses: true))
Button(action: {
self.showingAddTodoView.toggle()
}) {
Image(systemName: "plus.circle.fill")
.resizable()
.scaledToFit()
.background(Circle().fill(Color("Color")))
.frame(width: 48, height: 48, alignment: .center)
}
.onAppear(perform: {
self.animatingButton.toggle()
})
}
.padding(.bottom, 15)
.padding(.trailing, 15)
, alignment: .bottomTrailing
)
}
}
I want to set the background color for this view:

Answer 1

try this...
struct ContentView: View {
var body: some View {
UITableView.appearance().backgroundColor = .clear
UITableViewCell.appearance().backgroundColor = .clear
return NavigationView {
ZStack {
Color.blue
.edgesIgnoringSafeArea(.all)
List{
ForEach((1...5), id: \.self){_ in
HStack{
Text("item")
}
}
// .listRowBackground(Color.blue)
}
}
}
}
}