Swift

1.2.newsviewcontroller.swift newsviewcontroller.swift// navigationdemo//// Created by Carrie on 14-6-27.// Copyright (c) 2014 Carrie . All rights Reserved.//import Uikitclass Newsviewcontroller:uiviewcontroller { override func Viewdidload () {

Http://www.cocoachina.com/swift/20150901/13283.htmlThis article was translated by Cocoachina translator Alex Wu Haowen from use Your loaf blogOriginal: Checking API availability with Swift Swift 2 improves the method of checking API usability

First, the intentionA class is guaranteed to be a public instance and provides a global access point to access it.Second, the use of the scene1. Usage Scenarios When a class can have only one instance and the customer can access it from a well-

The uiview that are added in Swift are hierarchical.Let's add three first to take a look at Let View1=uiview (Frame:cgrectmake (Ten, A, $)) Let View2=uiview (Frame:cgrectmake () View3=uiview (Frame:cgrectmake, Max, max))

By default, the player comes with a variety of control buttons, such as forward and backward playback pauses, and so on:var url = nsbundle.mainbundle(). Urlforresource ("1", Withextension: "mp4")var play1 = Mpmovieplayerviewcontroller

    struct regexhelper {        let  regex: nsregularexpression?        init (_ pattern:  string)  {            var error:  NSError?            regex =  Nsregularexpression (pattern: pattern,                 options: . caseinsensitive,               

In Swift, the method has finally become a "first-class citizen", which can be used as a parameter, and before contacting today's content, you must understand the concepts of methods and closures in Swift. Swift supports methods nesting, and the

Structs and enumerations are similar to comparable studies: http://blog.csdn.net/lwjok2007/article/details/47975415Structs are a custom type that is similar to enumerations but different from enumerations. Simply understand that a struct is a

In Swift, get the value of the tuple to a location, in three ways:1. Using tuple variables/constants @Author: Twlkyao reprint or quote please keep this line. Let Http404error = (404, ' not Found ') let (StatusCode, statusmessage) = Http404errorThis

Swift 2.0 Learning Notes-My first line of Swift codeWhen I first saw the following code, I petrified, what is the code? The words spelled out?Import Foundationvar str = "Hello World"Print (str)Dizzy, okay, keep your head down and look down, oh,

This study note is written for people with programming experience, because a lot of basic knowledge of the content is omitted, so please don't blame me for the beginners to write not detailed. Swift includes the following data types:1. int

appdelegate.swift//uiwindowimport uikit@uiapplicationmainclass Appdelegate:uiresponder, UIApplicationDelegate {var window:uiwindow? Func application (application:uiapplication, didfinishlaunchingwithoptions launchoptions: [Nsobject:anyobject]?)-

appdelegate.swift//Tabbarcontrollerimport Uikit@uiapplicationmainclass Appdelegate:uiresponder, Uiapplicationdelegate {var window:uiwindow? Func application (application:uiapplication, didfinishlaunchingwithoptions launchoptions:

Today's blog summarizes some of the two new data types added in Swift relative to OBJC: tuple (tuple) and optional value type (Optional). The above two types are unique to Swift, and are very handy to use today, with examples that describe how to

// Array/** Swift requires an array to be used normally have to meet two points* 1 , the array must be initialized, it can be assigned at initialization, or it can be directly [] represents an empty array** 2 , you must specify a data type that can

/*** to use the dictionary correctly, you also need some conditions* 1 , the dictionary key-value pair The type of the key and value must be explicit, can be specified directly, or an array can be directly assigned by the compiler to automatically

main.swift// functiontest-04//import foundationprintln ("function test!") TestFunction ()The functiontest.swift//functiontest-04//import foundation//function begins with a Func representation of a function//parameter and parameter, and//V1

main.swift//classdemo-06//import foundationprintln ("Hello, world!") Class definition person Name class person{//define a field age var age:int = 0; Define a field name//? Indicates that name is null nil or not set name is optional var

viewcontroller.swift//Swiftui program -07import uikitclass Viewcontroller:uiviewcontroller {var clickCount:Int = 0;/ /clickcount is not declared as an int var mylabel:uilabel? Declare a global variable? Indicates that the initial value is null

Directly on the codeThe string//1 determines whether the string is empty var test1str= "" var test1str2:string = string ();p rintln ("Test1str" + (Test1str.isempty?). "No value": "With Value") println ("TEST1STR2" + (test1str2.isempty?) "No value": "