Xcode Survival Guide Version Two

T H E X C O D E S U R V I VA L G U I D E
K R I S T I N A F O X , S E N I O R I O S E N G I N E E R , I N T U I T

kristina.io @krstnfx
💦
👟

P E T E ’ S V E RY S T R A N G E D AY
'

C O L O R A S S E T S

L O C K S T O RY B O A R D E L E M E N T S
Lock -> All Properties

🚨 20:00 🚨

M U LT I P L E A S S I S TA N T E D I T O R S

A S S I S TA N T E D I T O R V I E W M O D E
All Editors Stacked Horizontally

S E L E C T F I L E V I E W L O C AT I O N
Alt + Shift + Click

C H A N G E C O M M A N D - C L I C K O P T I O N

Q U I C K O P E N F U N C T I O N L I S T
Ctrl + 6

S E A R C H F U N C T I O N S I G N AT U R E S
Ctrl + 6
Just start typing

//
// DryExecutionHandler.swift
// Resin
//
import Foundation
class DryExecutionHandler: NSObject {
override init() {
let network = Network()
network.executeDrying()
}
}
//
// RinseExecutionHandler.swift
// Resin
//
import Foundation
class RinseExecutionHandler: NSObject {
override init() {
network.executeRinsing()
}
}
//
// StickExecutionHandler.swift
// Resin
//
//
import Foundation
class StickExecutionHandler: NSObject {
override init() {
network.executeStickiness()
}
}

//
// Network.swift
// Resin
//
import Foundation
class Network: NSObject {
func executeDrying() {
let url = "resin-prod.com/dry"
executeAction(url: url)
}
func executeStickiness() {
let url = "resin-prod.com/sticky"
}
func executeRinsing() {
let url = "resin-dev.com/rinse"
}
}

U S E R D E F I N E D B U I L D S E T T I N G S
Project file -> Build Settings -> User-Defined Settings
02:49

✅
First stage
complete

🧖
🎭

D E V I C E C R A S H L O G S
1. Windows -> Devices and Simulators
2. Choose Devices tab
3. View device logs

“ C AT C H A L L ” B R E A K P O I N T S

E D I T I N G B R E A K P O I N T S

A D D A N A C T I O N

//
// Room.swift
// GasMask
//
import Foundation
class Room: NSObject, NSCoding {
var name: String?
var id: Int?
required init?(coder aDecoder: NSCoder) {
self.name = aDecoder.decodeObject(forKey: "names") as? String
self.id = aDecoder.decodeObject(forKey: "id") as? Int
}
func encode(with aCoder: NSCoder) {
aCoder.encode(self.name, forKey: "name")
aCoder.encode(self.id, forKey: "id")
}
}

struct Rooms: Codable {
var name: String
var id: Int
}

C U S T O M C O D E S N I P P E T S
1. Highlight code
2. Drag to code snippets window
3. Drop & fill completion shortcut

C U S T O M C O D E S N I P P E T S I N U S E
4. Profit 💵

✅
Second stage
complete

SUDDEN
DEATH
☠

> Your colleague is having a hard time debugging
an animation in simulator. What do you suggest?

D E B U G A N I M AT I O N S

> You want to use one of your own photos to test
your app. What’s the best way to load it in
simulator?

D R A G A N D D R O P M E D I A I N T O S I M U L AT O R

> What’s the easiest way to find all strings that look
like email addresses in your app?

PAT T E R N M AT C H I N G I N S E A R C H

> Looks like your colleague used a regular
expression before to search, but can’t remember
what it was. What do you recommend?

S E A R C H H I S T O RY

> Say you have to replace some old prefixed enum
code that looks something like this:
enum APPLFontStyle {
case APPLFontStyleBold
case APPLFontStyleItalic
case APPLFontStyleUnderline
case APPLFontStyleStrikethrough
}
> Know any shortcuts?

M U LT I P L E C U R S O R S
Option + drag (rectangular selection)
Ctrl + shift + click (place multiple cursors)

> How do you debug an issue where the root cause
is poor network connectivity?

N E T W O R K L I N K S I M U L AT O R

30 questions later…

> What is your spirit animal?

✅
Stage 3
complete

B A S E D O N A T R U E S T O RY
Just kidding 😁

X C O D E S U R V I VA L G U I D E C H E AT S H E E T
Name Location Shortcut
Color Assets Assets Folder Add Color Set
Lock Storyboard Identity Inspector Lock - All Properties
Side-By-Side Editors View -> Assistant Editor All Editors Stacked Horizontally
Place File In Editor Keyboard/Mouse Alt + Shift (Click On File)
Select Code Structure Keyboard/Mouse Command + Click (On Function)

Pre-Xcode 8 Style Jump
Xcode Settings ->
Navigation
Command-Click On Code ->Jumps To
Definition
User Defined
Environment Variables
Project File -> Build
Settings
Add variables to User-Defined Settings
Device Logs For
Crashes
Window -> Devices And
Simulators
View Device Logs
Catch All Breakpoints Breakpoints Panel Plus Button On Bottom Left
Edit Breakpoints Breakpoints Panel
Double-Click Blue Breakpoint To Bring
Up Action Menu

Slow Animations Simulator -> Debug Slow Animations
Custom Photos Simulator Drag and drop photo
Pattern Matching In
Search/Search History
Search Sidebar
Click On Magnifying Glass Drop Down,
Insert Pattern/Recent Queries
Multiple Cursors Editor
Ctrl + Shift +Click (Place Cursors) 
Option + Drag (Rectangular Selection)
Simulate Poor Network System Preferences Network Link Conditioner

R E S O U R C E S
• Paul Hudson’s Swift Knowledge Base 
https://www.hackingwithswift.com/example-code/
• API Endpoint Configuration 
https://medium.com/@danielgalasko/change-your-api-endpoint-environment-
using-xcode-configurations-in-swift-c1ad2722200e
• Type Safe JSON in Swift 
https://medium.com/grand-parade/creating-type-safe-json-in-swift-74a612991893
• WWDC-Style Code Snippets 
https://kristina.io/tutorial-wwdc-style-live-code-snippets/

R E S O U R C E S
• How To Simulate A Bad Network Connection On Your iOS Device and
Simulator 
https://www.natashatherobot.com/simulate-bad-network-ios-simulator/
• Regular Expression Search 
https://medium.com/@onmyway133/regular-expression-search-in-
xcode-28a1a17fc863
• Twitter iOS Community (@twostraws, @aligatr, @_inside & many more!) 
https://twitter.com/krstnfx/status/940265683690180608

Thanks!
6
kristina.io | @krstnfx

Xcode Survival Guide Version Two

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Xcode Survival Guide Version Two