swift homepage

In the project right-click Add a swift file, I added the Learnswift.swift add after Xcode popup ' whether to configure OC Bridge header file ' Prompt, click Confirm, the system automatically generates a project name-bridging-header.h file, mine is Learnswift-bridging-header.h. Tips for configuring OC Bridge header Files Learnswift-bridging-header.h is essentially a header file for Swift, where all OC head

Welcome to SwiftCurated to: iOS enthusiast, titleI try to use my spare time to translate Apple official documents, limited to the level, inevitably wrong, welcome to correct me.June 3, 2014Recommendation Number: 123-4567About Swift (Swift)Swift is a new development language for iOS and OS X applications, built on OC (OBJECT-C) and C, but without the limitations o

Swift 2.0 Learn and summarize oneOne: Attribute policy (called in OC) Strong: Is the default in Swift Weak: by weak keyword statement Weak var delegate:uitextfielddelegate? Readonly,readwrie directly by declaring a variable Var, declaring a constant let to indicate Copy is declared through the @nscopying directive. It is important to note that String,array and dictionary appear

When I first saw the swift extension, I thought about the extensions and categories of OC, so I was looking for Swift's expansion and OC extensions and categories. After several searches, the expansion of swift and the category of OC were found to be the same. But I'm a little more than a piece of the way to find out what it is like for the OC extension of Swift.

subscript may be too small or too large. -You need to input a value to the function, but the invalid value may cause the function to fail to run normally. -An optional value is now nil, but a non-nil value is required for subsequent code execution. Okay, the above is all about Swift's first chapter. The basic part is the basics. The links to all translated articles in Chapter 1 are as follows: Swift learning-

Swift uses closure expressions and swift expressionsThe closure expressions in Swift are flexible. The standard syntax format is as follows:{(Parameter list)-> return value type inStatement Group}The parameter list is the same as the parameter list in the function. The return value type is similar to the return value type in the function, but the difference is th

Swift up and running--integers and floating-point numbersThe original study of the parkParking Learning Techniques VideoIn Swift , numbers are divided into integers (for example: 1/10/100/1000, etc.) and floating-point number (for example: 3.14/1.44/2.71, etc.). Let's look at integers first. Integers-Int UIntAccording to the content space (8/16/32/64-bit) occupied by an integer variable and whether t

In the development of iOS apps, Swift will replace OC, the trend is "short-term coexistence, long-term replacement." But there have been too many code in the OC language, and Swift's development has inherited a lot of features from OC, and there are a lot of similarities. Swift and OC can now be seamlessly mixed-programming.I will implement a simple swift call OC

Since I'm talking about the hybrid programming of Swift and OC, my last blog, Swift and objective-c mixed programming--swift call OC, is about calling OC code in a swift project, and now we're going to implement calling Swift code in the OC project, is also very convenient.

Convert ojective-c code to SWIFT code2015-03-09 15:07 release: Yuhang Browse: 201 More concise than the Objective-c,swift language.Sometimes we need to convert some of the original objective-c code into Swift, which summarizes a variety of common scenarios. 1, the migration objective-c of the constructor is: 1 hanggemenuitem *starmenuitem1 = [[Hanggemenuitem all

Swift identifier and keyword, swift identifier and Any computer language is inseparable from identifiers and keywords. The following describes the Swift identifiers and keywords in detail. Identifier An identifier is the name specified for a variable, constant, method, function, enumeration, struct, class, protocol, etc. There are certain specifications for the l

IOS: learning notes, Swift through Boolean (translated from: https://developer.apple.com/swift/blog/ Aug 5, 2014 Boolean)View Swift through Boolean A simple Bool type contains many major Swift functions. It is an interesting demonstration of how to build a simple type. this article will create a new MyBool type that is

In order to simplify the swift language, the pointer is cloaked. There is no "*" like that in OC. Give the underlying question to the C language, and we can call the C language in Swift to solve it. Of course, OC can also be called.However, in some scenarios, this invocation may not be very convenient. For example, based on the parsing of the byte stream, the data we receive is parsed, and pointers may be u

Swift is the best language that is second only to PHP. without this second language, Swift makes up for the shortcomings of PHP. [Ridicule Apple] the Swift language is the best language that is only second only to PHP. without such a second language, it makes up for the shortcomings of PHP. Of course, Swift can also do

First, IntroductionAs Swift matures, the use of swift development or hybrid development has become a trend, and Apple is recommending the use of Swift as a new language. Swift has now been updated to 3.0, and it is estimated that no more than 4.0 will come out. Then there are some unavoidable problems when developing w

By using a single line of code to do the same 10 exercises, let's take a look at the battle between Swift and other languages.　　Multiplies the value of each element in the array by 2Use map to implement var arr = [1,2,3,4]; var newArr = arr.map{$0*2} for item in NEWARR { print (item) }The code completes the array element by 2 simply and clearlyTo find a set of numbers andThis problem can be solved by using

Swift Programming Language-how to use Inheritance in Swift, swiftlanguage One class can inherit the methods, properties, and other features of the other class. When a class inherits other classes, the inherited class is called subclass, And the inherited class is called superclass (or parent class, superclass ). In Swift, inheritance is a basic feature that disti

Swift object-oriented explanation, swift object-oriented 1. First, let's take a look at how to define attributes, constructors, methods, and class methods in a Class and Class in Swift. Import Foundationclass Hello {// member attribute var _ name: NSString? = "Jikexueyuan" // constructor init () {}// overload constructor init (name: NSString) {_ name = name} // m

[Swift] learning notes (1) -- getting started with basic data types, code styles, tuples, assertions, and swift learning notes Since Apple released swift, I have been trying to learn about it and have never been fully involved in it. From today on, I will use blogs to drive my swift learning, it is also faster for ever

Hybrid programming in Apple system development (2): mutual calls between Swift and C, system development swiftWhen performing mutual calls between Swift and C, it is necessary to first understand the type conversion relationship between the two languages: C type Swift type Bool CBool Char, signed char CChar Unsigned ch