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A Web Backend example that runs swift development under the "Getting Started with Swift" Ubuntu compilation

specific language governing permissions and * limitations under the License. **//*** creates a simple HTTP server this listens for incoming connections on port 9080.* for each request receieved, the Server simply sends a simple Hello World message* back to the client.**/#if OS (Linux) import Glibc#elseimport Darwin#endifi Mport utilsimport foundation//Create server Socketlet address = parseaddress () Let SERVER_SOCKFD = Createsocket (address)/ /Listen on socket with queue of 5listen (SERVER_SOC

A highly adaptive example of tableview cell in Swift

3 constraints. Example Import UikitClass Viewcontroller:uiviewcontroller, Uitableviewdelegate, Uitableviewdatasource {var catalog = [[String]] ()@IBOutlet weak var tableview:uitableview!Override Func Viewdidload () {Super.viewdidload ()Initializing a list of dataCatalog.append (["section I: Swift environment set-up","As the swift development

The wording of a single example in Swift

In Swift, a single case differs from OC in that it is written in many different ways, and if a. Swift file creates only one class, you can use that dispatch_once notation, If there are many classes in a. Swift file, an error will be made, and it needs to be written as below, so that the page is more simpleDeclaring static properties at the bottom 1 static var res

A single example of the Swift design pattern (SINGLETON)

" static Let shared = Swiftsingleton () } var single1 = swiftsingleton.shared var single2 = swiftsingleton.shared = "2" println ("------->\ (") println ("------->\ (") Copy CodeThe printing results are as follows: ------->1 ------->2 Program ended with exit code:0 Copy CodeAs can be seen from the above, through the implementation of the struct, we can not guarantee that there is only

Swift Difficulty-an example of a construction rule in succession

overloading of constructorsIn swift, subclasses do not inherit the constructor of the parent class by default.Constructors ' overloads follow the rules of the constructor chain (1.1-1.3)The constructor inherits the following rules:2.1. If no specified constructors are defined in the subclass, the specified constructors for all parent classes are automatically inherited2.2. If all the parent classes in the subclass are provided with the specified cons

Example of SWIFT multi-thread security lock for ios development

LockNo concurrency, no encoding. As long as we talk about multithreading or concurrent code, it may be difficult for us to bypass the discussion of locks. Simply put, in order to securely access the same resource in different threads, we need these access sequences. There are many lock methods in Cocoa and Objective-C, but the most common method in daily development is @ synchronized. This keyword can be used to modify a variable, and automatically add and remove mutex locks. In this way, the va

Example of the custom load progress bar component of Swift development

Often in development, in order to make the code more concise, we often encapsulate the commonly used functions into components (or UI components, UI controls), and this is also more conducive to the reuse of code.I wrote an article about how to implement custom components by inheriting UIView: Swift-Inherits UIView implements custom visualization components (with a scorecard sample) This article describes how to use custom components in storyboard, w

Swift HTTP Network Operation library alamofire implementation file download, breakpoint continuation example

Seven, use Alamofire for file download 1, custom download File save directoryThe following code downloads the logo picture to the user's document directory (Documnets directory), and the filename is unchanged. (. Get, "Yun_qi_img/logo.png") {Temporaryurl, response inLet FileManager = Nsfilemanager.defaultmanager ()Let Directoryurl = Filemanager.urlsfordirectory (. Documentdirectory,Indomains:. Userdomainmask) [0]Let pathcomponent = Response.suggestedfilenameReturn Directoryu

An example of swift generic syntax advanced processing

Swift refers to several languages, adding generics as a mechanism that makes people love and hate. Generics increase the expressiveness of the language and reduce redundancy, which is good news, but the bad news is: For complex implementations, seven around eight do not revolve, the syntax is easy to stun people ... Here's one example. This is a simplified example

[Swift] Day18 & amp; 19: A simple example

[Swift] Day18 amp; 19: A simple exampleSwift90Days-step 1 of a simple small application: Clarify the task After learning the basic syntax, we can finally get started. Taking this article as an example, we will create a simple application: PassUITableViewShow three small animals PassNSUserDefaultsData Persistence PassUIWebViewLoad more data from WikipediaDue to limited time, this blog is not a tutorial

Swift Difficulty-an example of a construction rule in succession

another convenience constructor is called, and the other facilitates the constructor to invoke the specified constructor end }}(ii) inheritance and overloading of constructorsIn swift, subclasses do not inherit the constructor of the parent class by default.Constructors ' overloads follow the rules of the constructor chain (1.1-1.3)The constructor inherits the following rules:2.1. If no specified constructors are defined in the subclass, the speci

Swift's TableView cell image width fixed, highly adaptive example

("MyCell",Forindexpath:indexpath) as! ImagetableviewcellGet the corresponding entry contentsLet entry = Catalog[indexpath.row]Cell Title and content settingsCell.titleLabel.text = entry[0]Cell.loadimage (Entry[1])return cell}Override Func didreceivememorywarning () {Super.didreceivememorywarning ()}} 3, get pictures from the network The example above we are loading the local picture directly. In the actual project, we usually load the pictures on

The QQ landing interface layout of Swift development example

= 5Qqnumber.keyboardtype = Uikeyboardtype.numberpadSelf.view.addSubview (Qqnumber)Self. Qqnumber = QqnumberPassword entry hintvar passtext = UILabel (Frame:cgrectmake (+, Uiscreen.mainscreen (). bounds.size.width-60, 30))Passtext.text = " Please enter password "Self.view.addSubview (Passtext)Password Entry boxvar passnumber = Uitextfield (Frame:cgrectmake (+, Uiscreen.mainscreen (). bounds.size.width-60, 30))Passnumber.placeholder = " Please enter password "PassNumber.layer.borderWidth = 1PassN

Example of Swift single case

Sometimes, we need a class as long as the initialization is enough, such as the audio player this instance, so we need to use a single case, familiar with C + + and OC know how to writeClass Csingleton/* Lazy */{public: Static Csingleton * getinstance () { if (m_pinstance = NULL)//Determine if the first call to m_pinstance = new Csingleton; return m_pinstance; } void Relaseinstance () { Delete this; } Private: Csingleton ()

Managing Fmdb databases in Swift with a single example

Off the clock ... Get Me out of here. Use Swift to share a single example of managing Fmdb databases:Created by Qin Zhiwei on 14-6-12.import uikitclass zwdbmanager:nsobject {//If the Fmdbdatabase header file is added to the bridge file Var database:f Mdatabase? var lock:nslock? Create a singleton class Func shareinstance ()->zwdbmanager{struct qzsingle{static var predicate:dispatch_once_t = 0

Swift form TableView A feature implementation example of loading new data

For tables (TableView), Drop-down refresh data, pull-load data should be the two most commonly used data update operations. For the former, I originally wrote a related article: Swift-Drop-down to refresh the functionality of the data implementation (using Uirefreshcontrol). This time I talk about the implementation of the latter.Say is pull load data, in fact, when we scroll the table content to the last row, the system will automatically get new con

Swift implementation of the heap sort algorithm code example _swift

depth direction.(3) Heap sorting: Heap sorting is done using the two processes above. The first is to build the heap from the elements. The root node of the heap is then removed (typically in exchange with the last node), the previous Len-1 node is continued for the heap adjustment process, and then the root node is removed so that all nodes are removed. The time complexity of the heap sort process is O (NLGN). Because the time complexity of the heap is O (n) (called once), the time complexity

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