Swift

1. First create obj-c/Swift project2. Create the Swift/obj-c file, which is where Xcode prompts you to create a bridging file between Swift and Obj-c, and click Confirm.3. In the production xxx-bridging-header.h, import the files that need to be

近日，在翻看以前写过的一些OC应用的时候，看到了OC的单例，然后暮然想要试着写一写Swift下的单例，于是，在经过一番波折后，终于将Swift下的单例写了出来。A single example implementation under OC栗子:+ (instancetype)sharedNetworkTools { //定义一个任意类型的静态实例 static id instance; static dispatch_once_t onceToken; //

Swift is Apple's new development language, released in 2014 by the WWDC (Apple Developer Conference), which works with Objective-c on Mac OS and iOS platforms for building Apple platform-based applications.It is reported that Apple's new programming

Inherit & extension inheritance and extensionParent classClass Car {var speed = 0var Description: String {Return "mph" (speed) km/h}Func sound () {}}Let a car = car ()A car. DescriptionSubclass Inherits Parent ClassClass Bike: Car {var has basket =

由于在开发中,总是要写图片轮播器之类的东东,写的烦了,忍不住就用Swift写了一个非常方便的图片轮播器的框架https://github.com/SarielTang/CycleViewWhen you are using it, just like this:import CycleViewclass className : PictureCycleController{ //override loadView function //重写loadViewe方法

Knowledge Points: different points of Swift functions Three ways to do a function without a return value Returns the tuple data Name of external parameter Shorthand for external parameter names Default parameter value,

in the class followed by the class name to create a class. In addition to the context is a class, declaring a property and a constant, the variable declaration is the same, and the methods and functions are the same. Class Shape { var

Function　　Swift uses the func keyword to declare a function: Func greet (name:string, day:string), String { return'Hello \ (name), today is \ ( Day). " }greet ("Bob""Tuesday")Return multiple values by tuple (tuple):Func getgasprices () (double,

//: Playground-noun:a Place where people can playImport Uikitvar str="Hello, playground."/*Arrays: Stores an ordered set of data array definitions: >OC: Array of values Nsarray *arr0 = @[@1, @2, @3]; Nsarray *arr1 = [Nsarray arraywithobjects:@1, @2,

 SwIft Learning　　[1] Swift is a programming language that Apple publishes in WWDC2014 to compose OS X and iOS applications. When designing for Swift. OBJECTIVE-C is the programming language that Apple's operating system uses before it is imported to

1, first look at how to define the properties, constructors, methods, and class methods within a class and class in SwiftImport Foundationclasshello{//member Propertiesvar _name:nsstring?="Jikexueyuan" //constructor Functioninit () {}//Overloaded

Both arrays and dictionaries in Swift are implemented in the form of structs.First of all, this is very wonderful, I do not know why this design, this is out of a kind of consideration.Use a dictionary in C #: dictionaryint , string > D IC = new

Recently learning Swift, I would like to use Swift in previous OC projectsAt the beginning, the start is relatively fast, the following record a few simple pits.1. As a result of the contact Swfit some tutorials, so prepare to use swift inside the

In the process of development, it is inevitable that we will use the new API, if not properly handled, for less than this version of the device running the application may crash, in order to prevent this situation, we need at runtime to determine

First find the source file from GitClick the address below to open the link https://github.com/alexeyxo/protobuf-swiftOf course its seventh step is not very good,7.ADD ./src/protocolbuffers/protocolbuffers.xcodeproj In your project.I chose the pod

If you want to enter special symbol edit-"special CharacterAt first the most tangled piece of codevar operrandstack: arraydouble> = arraydouble> () @IBAction func Enter ()//Why should it be empty {Isinputnumber = false //Operrandstack.append

ObjectiveTttattributedlabel inherited from the Uilabel, very convenient based on the existing code to modify, star over 4k+, today used a little notes. StatementWelcome reprint, but please keep the original source of the article:)Blog Park:

Three ways to implement Singleton mode in Swift: global variables, internal variables, dispatch_once methods1. Global variablesPrivate Let _singleton = Singleton () class Singleton:nsobject { class var Sharedinstance:singleton { get {

Viewcontroller is an important part of the iOS application and is an important bridge between application data and views, Viewcontroller managing many views in your app. Many native Viewcontroller are available in the iOS SDK to support standard

/* Let apples = 3 let orange = 5 let L = 1.1 let Applesummary = "I has \ (apples) apples" Let fruitsummary = "I had \ (apples + orange) pieces of fruit." Let Isay = ' I love \ (L) you ' Print (isay) Let explicifloat:float = 4//print