element-x-ios/ElementX/Sources/Screens/OnboardingScreen/View/OnboardingPageIndicator.swift

46 lines
1.4 KiB
Swift

//
// Copyright 2022 New Vector Ltd
//
// 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.
//
import SwiftUI
struct OnboardingPageIndicator: View {
/// The number of pages that are shown.
let pageCount: Int
/// The index of the current page
let pageIndex: Int
internal init(pageCount: Int, pageIndex: Int) {
self.pageCount = pageCount
// Clamp the page index to handle the hidden page.
if pageIndex == -1 {
self.pageIndex = pageCount - 1
} else {
self.pageIndex = pageIndex % pageCount
}
}
var body: some View {
HStack {
ForEach(0..<pageCount, id: \.self) { index in
Circle()
.frame(width: 8, height: 8)
.foregroundColor(index == pageIndex ? .accentColor : .element.quaternaryContent)
}
}
}
}