62 lines
1.6 KiB
Swift
62 lines
1.6 KiB
Swift
// Copyright 2019-2020 Tokamak contributors
|
|
//
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
//
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
//
|
|
// Created by Carson Katri on 6/30/20.
|
|
//
|
|
|
|
import TokamakShim
|
|
|
|
class TestEnvironment: ObservableObject {
|
|
@Published var envTest = "Hello, world!"
|
|
init() {}
|
|
}
|
|
|
|
struct EnvironmentObjectDemo: View {
|
|
@EnvironmentObject var testEnv: TestEnvironment
|
|
|
|
var body: some View {
|
|
Button(testEnv.envTest) {
|
|
testEnv.envTest = "EnvironmentObject modified."
|
|
}
|
|
}
|
|
}
|
|
|
|
extension ColorScheme: CustomStringConvertible {
|
|
public var description: String {
|
|
switch self {
|
|
case .dark: return "dark"
|
|
case .light: return "light"
|
|
@unknown default: return "unknown"
|
|
}
|
|
}
|
|
}
|
|
|
|
struct EnvironmentDemo: View {
|
|
@Environment(\.colorScheme) var colorScheme
|
|
|
|
@Environment(\.font) var font
|
|
@EnvironmentObject var testEnv: TestEnvironment
|
|
|
|
var body: some View {
|
|
VStack {
|
|
Text("`colorScheme` is \(colorScheme.description)")
|
|
if let font = font {
|
|
Text("`font` environment is \(String(describing: font))")
|
|
}
|
|
Text(testEnv.envTest)
|
|
EnvironmentObjectDemo()
|
|
}
|
|
}
|
|
}
|