Swift

starting with Xcode 8.0, all plugins are not working at this time! NSLog cannot output-this bug waits for the official version ...Xcode provides documentation comments shortcut key option + cmd +/But to upgrade the system to 10.11.5Swift:Color +

Because Swift programming language is an upper-level programming language, and Swift is due to high-performance computing interfaces for low-level, it often requires a pointer type in the C language, The swift programming language was born with the

The last time you learned about variable constants, data types, and conversions between data types, this time start with a string.1. String literal (string literals)You can include a predefined string value in your code as a string literal. String

Static methods are similar to static properties, anda static method , also known as a type method , is defined in Swift. Static methods are defined in the same way as static properties, where the keywords used by the enumeration and static methods

Classes, structs, and enumerations can define subscripts, and he can quickly and easily access the elements of a collection (set,array,dict), and you can make use of subscripts to get and set the collection elements. You can define multiple

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 =

Recently learning Swift, this thought much is the grammar and OC different, and are all using the same cocoa framework, the same API, but more or less still some pits in, in order to avoid further stepping, here to write down, later found a new pit,

This article is divided into two parts: 1. Error and exception handling 2, assertions in Swift 1. Error and exception handlingIn OC development, we usually set the error to nilNserror *= [Data writetofile:path options:options Error:

original articles, welcome reprint. Reprint Please specify: Dongsheng's blog Memory managed ObjectsSwift called in corefoundation when a function obtains an object, the object is divided into: a memory managed object and a memory unmanaged object. A

original articles, welcome reprint. Reprint Please specify: Dongsheng's blog A declaration is a specification that needs to be followed when declaring variables, constants, properties, methods, or functions, and custom types.The first time a

General-Purpose StoryboardThe universal Stroyboard file is the first step toward a bright avenue for adaptive layout. Adapting the ipad and iphone layouts in a storyboard file is no longer a dream in iOS8. Instead of creating different storyboard

Use a very simple scenario as an example: on storyboard, you have a UINavigationController string of two UIViewController . These two controllers should jump to each other, a->b, B->a. Jump when the default push to push the effect you feel very

Assertion (assertions)Optionals allows us to detect whether a value exists. In some cases, if a value does not exist or does not provide a specific satisfying condition, the code should not continue to execute down.In these cases, you can use the

The closure in Swift, the block in Objective-c, is actually a thingDeclaration of 1.Closure variables(1) Closure is an anonymous function, we can define a closure variable, and the type of the closure variable is the "function type" we described

Detective Shop Explore the Store Details page Nearby map Experience Classification It's mine Search Shake a ShakeSOURCE Download: http://code.662p.com/view/11652.htmlFor more effects, please use the Xcode7.0

13. Constructors for classes1. Introduction to Constructors The constructor is similar to the initialization method in OC: Init method When a class is created by default, a constructor is inevitably called Even if you do not write

http://www.imooc.com/learn/127"Fun to Swift" Web tutorial notes, you have updated according to the syntax of 2.1.I.1. Learn and familiarize yourself with the features of swift language through playground.2. A tuple declaration can have a name for

At this stage of Swift's coding, we still have many scenarios where we need to invoke some C functions. One of the frequently encountered problems in the combination of Swift and C is the need to convert strings to each other. In the C language,

Operate in the controller.Vim/etc/glance/glance-api.conf[Glance_store]Default_store = Swift defaults to file changed to SwiftStores = file, HTTP is not moved by defaultSwift_store_auth_version = 2 The default version is

1, Address Book Access introductionContacts (or address books, phone books) are a database that stores information about a contact. There are two ways to achieve access to your contacts: (1)addressbook.framework Framework: No interface, code to get