90 lines
3.2 KiB
Swift
90 lines
3.2 KiB
Swift
import SwiftUI
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struct CustomLightSequenceAnimation: View {
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// 核心循环序列：按"123321123321"规律定义基础单元
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private let baseSequence: [Int] = [1, 2, 3, 3, 2, 1, 1, 2, 3, 3, 2, 1]
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@State private var currentLight: Int = 1 // 当前显示的图片序号
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@State private var sequenceIndex: Int = 0 // 当前在序列中的索引
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// 淡入淡出透明度控制（确保切换丝滑）
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@State private var currentOpacity: CGFloat = 1.0
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@State private var nextOpacity: CGFloat = 0.0
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// 尺寸参数（适配正方形卡片）
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private let screenWidth = UIScreen.main.bounds.width
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private let squareSize: CGFloat
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private let imageSize: CGFloat
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init() {
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self.squareSize = screenWidth * 1.8 // 正方形背景尺寸
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self.imageSize = squareSize / 3 // 光束卡片尺寸（1/3背景大小）
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}
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// MARK: - SwiftUI 背景重绘（方形版本）
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private struct CardBlindBackground: View {
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var body: some View {
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GeometryReader { geo in
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let w = geo.size.width
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let h = geo.size.height
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ZStack {
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// 主背景卡片（方形）
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RoundedRectangle(cornerRadius: 28)
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.fill(
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LinearGradient(
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colors: [Color.white, Color.white.opacity(0.96)],
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startPoint: .topLeading,
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endPoint: .bottomTrailing
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)
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)
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.shadow(color: Color.black.opacity(0.06), radius: 16, x: 0, y: 8)
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.frame(width: w * 0.88, height: h * 0.88)
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.position(x: w / 2, y: h / 2)
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// 左上光斑
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Circle()
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.fill(Color.themePrimary.opacity(0.18))
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.blur(radius: 40)
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.frame(width: min(w, h) * 0.35, height: min(w, h) * 0.35)
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.position(x: w * 0.25, y: h * 0.25)
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// 右下光斑
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Circle()
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.fill(Color.orange.opacity(0.14))
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.blur(radius: 50)
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.frame(width: min(w, h) * 0.40, height: min(w, h) * 0.40)
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.position(x: w * 0.75, y: h * 0.75)
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// 中央高光描边
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RoundedRectangle(cornerRadius: 28)
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.stroke(Color.white.opacity(0.35), lineWidth: 1)
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.frame(width: w * 0.88, height: h * 0.88)
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.position(x: w / 2, y: h / 2)
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.blendMode(.overlay)
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.opacity(0.7)
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}
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}
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}
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}
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// 卡片中心位置（固定，确保摆正居中）
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private var centerPosition: CGPoint {
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CGPoint(x: screenWidth / 2, y: squareSize * 0.325)
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}
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var body: some View {
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ZStack {
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// 底部背景（正方形，SwiftUI 重绘）
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CardBlindBackground()
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.frame(width: squareSize, height: squareSize)
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.position(centerPosition)
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}
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}
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}
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// 预览
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struct CustomLightSequenceAnimation_Previews: PreviewProvider {
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static var previews: some View {
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CustomLightSequenceAnimation()
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}
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} |