iOS

2017/03/03

MacFusion DriveSSD

Apple ID

Xcode

UnityXamarin

XcodeObjective-CSwift

XcodeIDEC#HTML5

Xcode

Playground

Playground

Playground 2014 Swift

Xcode 6

Swift

2016 iPad

Swift & Objective-CSwift Objective-C2014 1984

3.0.2 (2016) 2.0 (2007)

.swift .h.m.mm

Swift & Objective-C

import #import

import Foundation import UIKit

#import #import

Swift & Objective-C

let number: Int = 10 #define number 10

Swift & Objective-C

var number: Int = 10 int number = 10;

var number = 10

Swift & Objective-C

var number1: Float = 0.4 float number1 = 0.4;

var number2: Double = 0.6 double number2 = 0.6;

number1 + number2 number1 + number2;

Swift & Objective-C

var number1: Float = 0.4 float number1 = 0.4;var number2: Double = 0.6 double number2 = 0.6;

number1 + Float(number2) number1 + number2;

Swift & Objective-C

var number1: Float = 0.4

var number2: Double = 0.6

var number2 = 0.6

Swift & Objective-C

var number1: Float = 0.4 float number1 = 0.4;var number2 = 0.6 double number2 = 0.6;

number2 + 0.8 number2 + 0.8;

number1 + 0.2 number1 + 0.2;

Swift & Objective-C

var number1: Float = 0.4var number2 = 0.6

number2 + 0.8

number1 + 0.2 0.2Float

0.8Double

Swift & Objective-C

var nums = [1, 2, 3] NSArray *nums = @[1, 2, 3];

NSArray

Swift & Objective-C

NSNumber *number = @(10);

NSNumber *number = @(0.5);

NSNumber *number = @(true);

Swift & Objective-C

var nums = [1, 2, 3] NSArray *nums = @[1, 2, 3];

NSArray *nums = @[@(1), @(2), @(3)];

Swift & Objective-C

var text: String = "" NSString *text = @"";

var text: NSString = ""

var text = ""

var text = "" as NSString

SwiftString vs NSString

var text: String = "" var text: NSString = ""

struct String { /* ...... */ }

class NSString { /* ...... */ }

Swift

Struct Class

Value Type Reference Type

ClassReference Type

StructValue Type

ClassReference Type

StructValue Type

Class

Class

Class

Struct

Struct

Class

Swift & Objective-C

Swift & Objective-C

var number1: Float = 0.4 float number1 = 0.4;var number2: Double = 0.6 double number2 = 0.6;

number1 + Float(number2) number1 + number2;

Swift & Objective-C

var text: String = "" NSString *text = @"";

var text: NSString = ""

var text = ""

var text = "" as NSString

Objective-C

int num1 = 1;int num2 = 2;

double num3 = num1 / num2; // num3 = 0

double num3 = num1 / (double)num2; // num3 = 0.5

Swift

var num1: Int = 1var num2: Int = 2

var num3 = num1 / num2 // num3 = 0 var num3: Double = num1 / num2

// ERROR

var num3 = Double(num1) / Double(num2) // num3 = 0.5

Swift

var text: String = "" var text: NSString = ""

var text = "" as NSString

Reference TypeValue Type

Obj-CNSClassSwift 3StructNSAttributedString

Swift

Writing Swift Classes and Protocols with Objective-C Behavior : Apple Inc. Using Swift with Cocoa and Objective-C (Swift 3.0.1) iBooks. https://itun.es/tw/1u3-0.l

https://itun.es/tw/1u3-0.l

Swift

Swift

Any

AnyObject

Swift

SwiftOptional Type & nil

Optional Type?(nil)

nilObjective-CNULLnilNil

Objective-C

NULLObjective-CC(void *)

nilObjective-C

NilObjective-C

NULLnilNil0

SwiftOptional Type

Optional Type?? Optional Type

Swiftfor

for (; ; ) { /* ...... */ }

for in { /* ...... */ }

Swiftfor

Swiftfor

Swiftfor

for (int i = 0; i < 5; i++) { /* ...... */ }

for i in 0..

Swiftfor

for (int i = 0; i

SwiftSwitch

Swift()

C i++i--++i--i

Swift i++i--++i--i

() i += 1i -= 1

Swift

Swift

Swift

Swift Unicode

Swift

Swift & Objective-C

var nums = [1, 2, 3] NSArray *nums = @[1, 2, 3];

NSArray *nums = @[@(1), @(2), @(3)];

Swift

Int

Swift

Swift

Swift

Swift

Swift

Swift

Swift

Dictionary ()

Dictionary (Key)(Value) Key Value

Key Hashable (protocol) Key String

SwiftDictionary ()

Swift

SwiftTuple

(key, value)

SwiftTuple

Tuple Tuple

Tuple Objective-C

C# Tuple

Swift & Objective-C

Class & Method

C#Class & Method

class Car { void StartEngine() { /* ...... */ } void AddGas(int gallons) { /* ...... */ } int Drive(int miles, int speed) { /* ...... */ return 1; }}

Objective-CClass & Method

SwiftClass & Method

class Car { func startEngine() { /* ...... */ } func add(gas gallons: Int) { /* ...... */ } func drive(miles: Int, speed: Int)-> Int { /* ...... */ return 1 }}

SwiftClass & Method

func add(gas gallons: Int)

()

()

SwiftClass & Method

let car = Car()car.add(gas: 10)

class Car { func add(gas gallons: Int) { /* ...... */ }}

SwiftClass & Method

func drive(miles: Int, speed: Int)-> Int

1()

2()

SwiftClass & Method

let car = Car()car.drive(miles: 10, speed: 60)

class Car { func drive(miles: Int, speed: Int)-> Int { /* ...... */ return 1 }}

SwiftClass & Method

let car = Car()car.drive(miles: 10, speed: 60)

let car = Car()_ = car.drive(miles: 10, speed: 60)

let car = Car()let drive = car.drive(miles: 10, speed: 60)

Swift

let car = Car()_ = car.drive(miles: 10, speed: 60)

_

Swift (Property)

Xcode

Xcode

Xcode

APP

Product NameTeam

Organization NameOrganization Identifier(Domain)

Xcode

Xcode

Xcode

Xcode

Xcode

Xcode

Xcode

Apple Developer Program ()

iPhoneiPad

iOS

StoryboardAutoLayout