rnapier

/// Some exploration into how selector-based notification interact with actors.
///
/// Or in the words of Brent Simmons (@[email protected]),
/// "Selector-based Notification Observers Are Actually Good"

/// Overall, I'm reasonably convinced, in that it avoids the headaches of `deinit` in actors.
/// However, Combine-based observation is also good at this, so I don't yet have a strong opinion
/// about old-school selectors vs Combine beyond my usual nervousness around Combine.
/// Whether "I'd like to reduce Combine" is more or less powerful than "I'd like to reduce @objc"
/// is yet to be seen.

IanKeen

// Setup
class Child: ObservableObject {
    @Published var value = ""
}

class Parent: ObservableObjectContainer {
    let single = Child()
    let array = [Child(), Child()]

    func updateSingle() {

IanKeen

import Combine
import SwiftUI

extension View {
    public func focused<T>(file: StaticString = #file, _ state: FocusState<T>, equals value: T) -> some View {
        modifier(FocusedModifier(state: state, id: value, file: file))
    }
}

@propertyWrapper

marcedwards

### Points and display type

PPI is points per inch below, not pixels per inch. Not all models are listed, just the first model with a new display size. Diamond, RGB Stripe and Pentile RGB refer to the subpixel patterns.

iPhone 1 = 320×480 at 163PPI sRGB IPS LCD RGB Stripe
iPhone 4 = 320×480 at 163PPI sRGB IPS LCD RGB Stripe
iPhone 5 = 320×568 at 163PPI sRGB IPS LCD RGB Stripe
iPhone 6 = 375×667 at 163PPI sRGB IPS LCD RGB Stripe
iPhone 6 Plus = 414×736 at 153.5PPI sRGB IPS LCD RGB Stripe
iPhone 7 = 375×667 at 163PPI P3 IPS LCD RGB Stripe

DevAndArtist

import SwiftUI

struct HeroAnimationTest: View {
  let indices = 0 ..< 3

  @State
  var showsOtherView = false

  @Namespace
  var namespaceID: Namespace.ID

truizlop

import SwiftUI

let LINE_LENGTH: Double = 500.0
let N = 720
let LINES = 18
let WAVES: Double = 18.0
let WAVE_HEIGHT: Double = 20
let SPACING: Double = 27.0
let CURL_AMOUNT: Double = 12.0

jordansinger

import SwiftUI
import PlaygroundSupport

struct Sunset: View {
    @State var backgroundColor = Color.blue 
    @State var sunSetted = false
    let sunGradient = [Color.yellow, Color.orange]
    let moonGradient = [Color.gray, Color.black]
    @State var alignment = Alignment.top
    

DreamingInBinary

# A Best in Class Checklist
A boiled down checklist adapted from this [post](https://www.swiftjectivec.com/a-best-in-class-app/), created by @jordanmorgan10.

> To use this, create a Github Issue in your own repo, and simply copy and paste this text.

## iOS Core Technology
_Things any iOS app can benefit from_

- [ ] iCloud Sync
- [ ] Focus Filter Support

mergesort

import SwiftUI

let colors = [
    Color.pink,
    Color.blue,
    Color.green,
    Color.orange,
    Color.purple,
    Color.black,
]

izakpavel

//
//  AnimatableVector2D.swift
//
// this is derivation of generic AnimatableVector presented at: https://nerdyak.tech/development/2020/01/12/animating-complex-shapes-in-swiftui.html
//
//  Created by Pavel Zak on 18/05/2020.
//

import SwiftUI