Swift

Learning from the Geek Academy: functions in SwiftTool: Xcode6.4Directly on the basis of the sample code, more knocks more experience will have a harvest: hundred see not like a knock, a knock will1 Import Foundation2 3 //function4 5 //1. Multiple

Recently learning iOS, I have been using C # to develop, Java, C, C + + also have a certain understanding. Recently started an air, trying to learn iOS development.　　If you're not in C # and the Java camp, if you're not interested in swift, you

Import UIKitClass Viewcontroller3:uiviewcontroller {Override Func Viewdidload () {Super.viewdidload ()Self.view.backgroundcolor=uicolor.whitecolor ()var ScrollView = Uiscrollview (frame:cgrectmake (0, 0, screenwidth, screenheight))

Import Foundation//mark:-------Enumeration Syntax-----------//Unlike C and Objective-c, Swift's enumeration members are not assigned a default integer value when they are created enum compasspoint{ Case East Case West}enum planet{case Mercury, Venus,

Import foundationprintln ("Hello, world!.")/*int A;*/var a=Ten //Implicit type conversionsA =9println (a) Let B=Tenprintln (b)/*Type Callout*///var x:int//x = 10.3 does not support implicit conversionsLet x:int=Ten/*names are not used in compliance

Swift file: Main.swiftImport Foundation//swift call C function Desc1 ()//swift call oc//get OC class var funcclass = Root () funcclass.desc2 ()OC File: Root.h#import @interface root:nsobject-(void) desc2; @endRoot.m#import "Root.h" @implementation

var button1 = UIButton (Frame:cgrectmake (100, 200, 100, 40))Button1. Settitle ("first button", ForState:UIControlState.Normal)Button1.addtarget (Self, Action: "Firstswift:", ForControlEvents:UIControlEvents.TouchUpInside)Self.view.addSubview

Lazy as the name implies is slow, million must not move.The same is true of a variable, which is only loaded when you first use it. All also known as lazy loading, is required to load.=========The benefits of doing this:1. Modularization, the code

Summary of Swift Advanced Grammar Learning1. Functions1.1 Func Funcnmae () {} This defines a function whose arguments are null, the return value is NULL, and if the parameters and return values are written directly in two brackets.The 1.2 parameter

Debug Print in OC/*** Custom Log*/#ifdef DEBUG#define JYLOG (...) NSLog (__va_args__)#else#define JYLOG (...)#endif in Swift I wrote a class that makes debug output call method debug. Log(Error) Import UIKitClass debug:nsobject{TODO:

Actually just want to not put the interface is painted in a storyboard insideIn order to solve this problem, the online search of a lot of information, in fact, very simple@IBAction func idquery (Sender:uibutton) { = Uistoryboard

Swift's regular expression (nsregularexpression) by WusheyingImportUIKitclassViewcontroller:Uiviewcontroller {OverridefuncViewdidload () {Super.Viewdidload() LetMailpattern =^ ([a-z0-9_\\.-]+) @ ([\\da-z\\.-]+) \ \. ([a-z\\.] {2,6}) $" LetMatcher

Variables and constants:If you want to define a variable equal to 1, just write var = 1,swift will automatically make type inference.If you want to define a constant pi equal to 3.14, just write let PI = 3.14, constants can only be assigned

Turn from: Click to open linkFrom my short experience with Swift there is three approaches to implement the Singleton pattern, support lazy Initia Lization and thread safety.These approaches might change or become redundant as the language

Declaring enumerationsenum Direction { case North case East case West case South}You can also use a caseenum Direct { case North, East, South}Using enumerationsvar dirct = Direction.East.WestRelated valuesYou can use an enumeration to

http://blog.csdn.net/kuloveyouwei/article/details/30511303At the end of this WWDC global developer conference, Apple has unveiled a new swift programming language and a new version of Xcode for developers, which Apple says is "fast, modern, secure,

var test= "11111111111test"if (string.rangeofstring ("test") = nil)//note the space around! ={println ("Find")}If you want to get a location, you:var t=string.rangeofstring ("Test")Start positionT?. StartIndexEnd PositionT?. EndIndexAnother way to

1.Swift is a strongly typed language and cannot give a variable a value other than its own data type;2. Declare the variable using the var keyword, declaring the constant using the Let keyword;3. When declaring a variable or constant without

Swift Basic TypesThe types of Swift are developed on the basis of C and OC, int is integer, double and float are floating point type; bool is Boolean; string is string. Similar Oc,swift also presents three sets of types: Array, set, Dictionary;In

Watch developing IOS 8 Apps with Swift see some more useful points to record:1. Pass the function as a parameter. For example:Write a function with a sum of two numbers:performoperation (multiply)func Performoperation (Operation: