Koshimizu-Takehito

import SwiftUI

struct ContentView: View {
    var body: some View {
        ScrollView(.vertical) {
            ForEach(0..<1000) { i in
                RoundedRectangle(cornerRadius: 24)
                    .fill(.blue)
                    .frame(height: 100)
                    .padding(.horizontal)

Koshimizu-Takehito

import SwiftUI

struct ContentView: View {
    var body: some View {
        ScrollView(.vertical) {
            ForEach(0..<1000) { i in
                RoundedRectangle(cornerRadius: 24)
                    .fill(.purple)
                    .frame(height: 100)
                    .padding(.horizontal)

Koshimizu-Takehito

import SwiftUI

struct ContentView: View {
    @State var rating: Double = 0

    var body: some View {
        HStack(spacing: 18) {
            Button(
                action: { withAnimation { rating -= 1 } },
                label: { Image(systemName: "minus.circle") }

Koshimizu-Takehito

import SwiftUI

struct FlowLayoutSampleView: View {
    @State var width: CGFloat = 180

    let tags: [String] = [
        "Objective-C", 
        "Swift",
//        "SwiftSwiftSwiftSwiftSwiftSwiftSwiftSwift",
//        "SwiftSwiftSwiftSwiftSwiftSwiftSwiftSwiftSwiftSwiftSwiftSwiftSwiftSwiftSwiftSwiftSwiftSwiftSwiftSwiftSwiftSwiftSwiftSwiftSwift",

Koshimizu-Takehito

import SwiftUI

enum CustomGridItem: LayoutValueKey, Hashable {
    enum Bar: Hashable {
        case vertical
        case horizontal
    }
    case cell
    case bar(Bar)
    static var defaultValue: Self = .cell

Koshimizu-Takehito

import SwiftUI

@main
struct App: SwiftUI.App {
    var body: some Scene {
        WindowGroup {
            ContentView()
        }
    }
}

Koshimizu-Takehito

import SwiftUI

struct ContentView: View {
    @State private var containerFrame: CGRect = .zero
    private var colors = [[Color]](repeating: .rainbow(count: 50), count: 300)
        .flatMap { $0 }
        .enumerated()
        .map { $0 }

    var body: some View {

Koshimizu-Takehito

import SwiftUI

extension [Color] {
    static func rainbow(hue: Double = 0, count: Int) -> Self {
        (0..<count).map { i in
            var value = hue + Double(i) / Double(count)
            value -= floor(value)
            return Color(hue: value, saturation: 1/4, brightness: 1)
        }
    }

Koshimizu-Takehito

import SwiftUI

struct ContentView: View {
    @State var mode = EditMode.inactive

    var body: some View {
        NavigationStack {
            VStack {
                ForEach(1..<12) { offset in
                    FooView(count: 12, offset: offset)

Koshimizu-Takehito

#include <metal_stdlib>
using namespace metal;

namespace JuliaSet {
    /// HSV -> RGB
    half3 hsv2rgb(half3 c) {
        half3 rgb = clamp(abs(fmod(c.x * 6.0 + half3(0.0, 4.0, 2.0), 6.0) - 3.0) - 1.0, 0.0, 1.0);
        return c.z * mix(half3(1.0), rgb, c.y);
    }