Swift

Original link: Swift programming 101:creating self-registering Swift UI Controls Original Author: Kevin McNeish Development technology Front www.devtf.cn Translator: Kmyhy Reviewer: lastday Status: Complete For

Xcode7.1 use Cocoapods to install the third-party network library under Alamofire--swiftThe alamofire previously searched online was version 1.3. So the installation to Xcode7.1 will be error, so the Alamofire3.1 version with Cocoapods installation.

Infix syntax is a kind of OC Ritter, which is to add an explanatory word to the arguments of the function, so that the meaning of the parameter is understood when the call is made.Like what:-(void) Processdatawithparamaa: (NSString *) Paramaa

First, the callbackWe know that when we execute a function, we usually have return as the return parameter, so why do we have to return the callback?Callback is to implement the asynchronous return, in some special cases, such as your function is a

1 Import Foundation2 3 classhi{4 func Sayhi () {5Print"HI Jinpanpang")6 }7 }8 9 classHello:hi {Ten var _name:string One A //Parametric Constructors - Init (name:string) { -Self._name =name thePrint"init Hello") - } - -

1 Import Foundation2 3 //Array Declaration4var arr =[String] ()5 //array Loop Add Item6 forvar indexinch 0... -{7Arr.append ("Item \ (index)")8 }9 Ten //Traversal Method 1 One forIteminchArr { A print (item) - } - //Traversal Method 2 the

Original articles, welcome reprint. Reprint Please specify: Dongsheng's blog Constructors can also be overloaded as a special method.In swift, constructors can be multiple, and their argument lists and return values can be different, and these

// lazy Loading this input box private lazy var Textview:uitextview = { = uitextview () = Uifont.systemfontofsize ( - ) = uicolor.darkgraycolor ()// working with the keyboard, setting the keyboard's vanishing mode

The Memory management foundation of Swift language *************Memory management: For the management of the memory footprint of the instance (placed inside the heap)Example: 1, instance constructed from class type 2. Closure Object/*Memory

1Func SayHello (personname:string)string//Return is a string type2 {3Let greeting ="Hello"+ PersonName +"!"4 returnGreeting5 }6 7println (SayHello ("Lin"))//hello lin!8 9Func Add (A:int, B:int),IntTen { One returnA +b A } - -println

Import UIKit/*:Optional type ( can have a value , or it can have no value ) * in OC We can assign a value of nil or an object to an object type variable , whereas in Swift if you want to assign a variable to nil It must be explicitly specified

Original articles, welcome reprint. Reprint Please specify: Dongsheng's BlogThe computed property itself does not store the data, but instead computes it from other storage properties.Calculate Attribute Concepts:The computed property provides a

Articles for their own study, the department is reproduced. Notes for learning 51cto courses. If there is infringement, please private messages I delete.The links are as follows.? http://edu.51cto.com/roadmap/view/id-58.html1. Syntax format for if

There are a lot of people who also want to use code to implement the layout of the UI, there are three steps to remove Main.storyboard:First open the project below supporting files under the Info.plistDelete the line that is referred to belowNext

Swift 2.0 Study notes ( Day )--access levelOriginal articles, welcome reprint. Reprint Please specify: Dongsheng's BlogAccess level:Swift provides 3 different access levels, with the corresponding access modifiers: public, internal, and private.

1Let array = ["Shenyang","Beijing", "Shanghai", "Guangzhou "]2 3 vari =04 forIinch 0.. Array.count5 {6Print"\ (i): {"+ Array[i] +"}")//Easy Output Array index7 }8 9 println ()Ten forValueinchArray One { APrint""+ Value +">")//not easy to output

Import UIKitClass Viewcontroller:uiviewcontroller {@IBOutlet weak var toolbar:uitoolbar!@IBOutlet weak var addactionlabel:uilabel!Override Func Viewdidload () {Super.viewdidload ()Configuretoolbar ();}Configure the tool bar Item function Func

Lesson two learn some of the basic types of swift and flow control statementsAfter the Xcode environment configuration is complete, the first project is created, the first one raised is a question, wheremain is, in the Swift language, main is

The collection view created in Swift is almost the same as in OC, mainly implementing the Uicollectionviewdatasource Data source protocol and Uicollectionviewdelegateflowlayout custom layout protocol. Where Uicollectionviewdelegateflowlayout custom

Original articles, welcome reprint. Reprint Please specify: Dongsheng's BlogEnumerations in Swift can define a set of constants, improve the readability of the program, and also have object-oriented characteristics.Use the ENUM keyword to declare an