44 lines
1.2 KiB
Swift
44 lines
1.2 KiB
Swift
// Copyright 2019-2020 Tokamak contributors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//
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// Created by Max Desiatov on 14/02/2019.
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//
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import TokamakShim
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final class Count: ObservableObject {
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@Published var value: Int
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init(value: Int) { self.value = value }
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}
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struct Counter: View {
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@ObservedObject var count: Count
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let limit: Int
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@ViewBuilder public var body: some View {
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if count.value < limit {
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VStack {
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Button("Increment") { count.value += 1 }
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Text("\(count.value)")
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}
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.onAppear { print("Counter.VStack onAppear") }
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.onDisappear { print("Counter.VStack onDisappear") }
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} else {
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VStack { Text("Limit exceeded") }
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}
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}
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}
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