jverkoey

import Foundation

#if canImport(MiddleLib)
import MiddleLib
#endif

public struct AppGreeting: Sendable {
    #if canImport(MiddleLib)
    public static let message = MiddleHelper.name
    #else

jverkoey

public func rubberBand(value: CGFloat, min: CGFloat, max: CGFloat, bandLength: CGFloat) -> CGFloat {
  if value >= min && value <= max {
    // While we're within range we don't rubber band the value.
    return value
  }

  if bandLength <= 0 {
    // The rubber band doesn't exist, return the minimum value so that we stay put.
    return min

jverkoey

import SwiftUI

struct SpotifyToggle: View {
  let value: String
  @Binding var selection: String?
  let didTap: () -> Void
  var body: some View {
    Toggle(value, isOn: .init(get: { selection == value }, set: { _ in
      withAnimation {
        if selection == nil {

jverkoey

import SwiftUI

struct SeamlessCarouselDemo: View {
  @State private var seamless = false

  @ViewBuilder
  func image(_ name: String) -> some View {
    Image(name)
      .resizable(resizingMode: .stretch)
      .aspectRatio(contentMode: .fit)

jverkoey

import Charts
import SwiftUI

let oneDay: TimeInterval = 60 * 60 * 24

struct ContentView: View {
  var body: some View {
    let history = loadHistory()
      .filter { $0.id > Date.now.addingTimeInterval(-oneDay * 30) }
    let analysis = TradingAnalysis(history: history)

jverkoey

import SwiftUI

struct FlipButton: View {
  @State private var orientation: Int = 0

  var body: some View {
    Button {
      orientation += 180
    } label: {
      Image(systemName: "arrow.up.arrow.down")

jverkoey

import SwiftUI

struct LinkedInActivityIndicator: View {
  @State private var animating = false

  let cornerRadius: CGFloat

  var body: some View {
    GeometryReader { proxy in
      ZStack {

jverkoey

Notice

This is an undocumented API. It may break at any time. Contributions welcome; please share in the comments and I will update the gist accordingly.

Authentication

Each request must be passed a valid authentication cookie. The cookie takes the following form and can be pulled from any authenticated request made in the browser:

jverkoey

// NOTE: I've decided to use a much simpler approach to this as the complexity was starting to consume
// too much energy. Leaving this here for historical context.

// Building an Underdamped Harmonic Oscillator
//
// All equations derived from this wonderful paper by David Morin:
// http://www.people.fas.harvard.edu/~djmorin/waves/oscillations.pdf
//
// Note on mass: In order to simplify our calculations I'll assume that mass (m) is always 1. Where
//               m would otherwise be written I've folded it into the expression.

jverkoey

@interface NSObject ()
- (void)generateSpringPropertiesForDuration:(float)arg1 damping:(float)arg2 velocity:(float)arg3;
- (id)_defaultAnimationForKey:(id)arg1;
@end

// This object calculates the damping and stiffness coefficients, given a damping value (0...1], a velocity, and a duration.
id obj = [[NSClassFromString(@"UIViewSpringAnimationState") alloc] init];

[obj generateSpringPropertiesForDuration:10 damping:0.5 velocity:10];