huguesbr

Enum is probably one of the most powerful feature of Swift. It's simple, yet it allow to easily build complex Finite State Machine. Let's explore how to extract View Controller's state dependant logic into enum and how to test it separatly.

View Controller often take different state depending of some specific state of the App (fetching data, user logged in/off, ...). This can lead to some internal test condition which clutter your code and are also hard to test. Wrapping up this logic into an enum with associated values allow to split this UI logic piece from the rest of the View Controller logic.

huguesbr

Building UI can be frustating when it come to tweaking timing, size or others dimensions of your UI component. Let's explore how to build a set of tool that will greatly ease this process in Xcode using Playground.

Timing an animation can be done using CAMediaTimingFunction which can take a prebuild function (Linear, EaseIn, EaseOut, ...) but also modeled after a cubic Bézier curve. It can be tedious to find the right curve shape. Let's build a (almost) drag and drop Playground to tweak any animation using a Bézier curve visual builder.

Preview: http://bit.ly/29gCNnV

huguesbr

import XCTest
import Foundation

var testCases: [AnyClass] = []

class computedTests: XCTestCase {
    let formula = 2 * M_PI
    
    func testComputedGet() {
        var radius: Double = 1

huguesbr

# You don't need Fog in Ruby or some other library to upload to S3 -- shell works perfectly fine
# This is how I upload my new Sol Trader builds (http://soltrader.net)
# Based on a modified script from here: http://tmont.com/blargh/2014/1/uploading-to-s3-in-bash

S3KEY="my aws key"
S3SECRET="my aws secret" # pass these in

function putS3
{
  path=$1

huguesbr

extension ObservableType {
  // unwrap an optional
  func unwrap() -> Observable<E> {
    return flatMap { $0 == nil ? Observable.empty() : Observable.just($0!) }
  }
}

huguesbr

// exploration
// add a extension wrapper to any type (like `Reactive` from `RxSwift`)
//: Playground - noun: a place where people can play

import UIKit

struct Extension<Base> {
    let base: Base
    init(_ base: Base) {
        self.base = base

huguesbr

import Foundation
import UIKit
import RxSwift

class PhotoWriter: NSObject {
  typealias Callback = (NSError?)->Void
  let disposeBag = DisposeBag()
  
  private var callback: Callback
  init(callback: @escaping Callback) {

huguesbr

### Keybase proof

I hereby claim:

  * I am huguesbr on github.
  * I am rompelstilchen (https://keybase.io/rompelstilchen) on keybase.
  * I have a public key ASDQjwFy183WMCQdyGvC9Y4nqKpzduv8nitFSnyuCH8W8go

To claim this, I am signing this object:

huguesbr

extension ObservableType {
    public func retryPromptOn(_ vc: UIViewController) -> Observable<E> {
        return self.retryWhen { (error: Observable<Error>) -> Observable<Void> in
            return vc.rx.retryPrompt(error: error)
        }
    }
}
extension Reactive where Base: UIViewController {
    func retryPrompt(error: Observable<Error>) -> Observable<Void> {
        let retry =  PublishSubject<Void>()

huguesbr

#!/usr/bin/env ruby
# take annotated string and transforms it to the tr(...) format as well as creating the localizable.strings entry

# arguments
localizable=ARGV[0]
filename=ARGV[1]

def makeFirstLetterUpper(string)
  string[0].upcase + string[1..-1]
end