awesome ios swift

This article was written in 2014.09.25 The recent iOS development new programming language Swift has a large response in the iOS development circle, there are many tutorials or small samples at home and abroad.While the language of Swift is still evolving, and the changes are still big, Apple is not promising

Unicodescalars property of the string. It is an attribute of type Unicodescalarview, and Unicodescalarview is a collection of unicodescalar. The Unicodescalar is a 21-bit Unicode code point.Each unicodescalar has a value attribute and can return the corresponding 21-bit value, expressed in UInt32.For scalar in Dogstring.unicodescalars {Print ("\ (scalar.value)")}Print ("\ n")68 111 103) 33 128054Similarly, the first four code unit values (68, 111, 103, 33) represent the characters d o G and!. T

Http://www.osforce.cn/course/147?mc147=1412179E99FQApplication ProspectsAs an independent launch of Apple's supported development language, there have been a number of application demonstrations and collaborative development company testing, I believe it will be more widely used in the future. [4] In a sense, swift, as Apple's new business strategy, will attract more developers to get started, increasing the number of applications that the App Store a

number of model plist, then the corresponding, Section++,row zeroed. What is worth saying here is that I rewrote the frame property of the parent class, and when the Zyimagedisplayingview frame changes, it triggers the Didset method of the property, I initialized the Uicollectionview in this method and made the corresponding settings. Personally think this is not very good, I should not be in this method to initialize the Uicollectionview, this should have a few considerations: If I use

= Resolutionclass (width:1920x1080, Height: the)//Class object assignment, referencing the same memory spacevarCinemaclass = Hdclass//Modify the Cinema object, and also modify the Hdclass object essentiallyCinemaclass.width =2048println"Cinemaclass is now \ (cinemaclass. width) pixels wide")//Result: Cinema is now 2048 pixels wideprintln"Hdclass is also \ (hdclass.width) pixels wide")//Result: HD is also 2048 pixels wide5. Selection of classes and structuresstruct instances are always passed by

Sqlite.swift: Simple, lightweight, using the most SQL-only SQLite package library Realm: Ambition to replace core data and SQLite's mobile database Network class Alamofire: The famous Afnetworking Network Foundation Swift language edition Starscream:websocket Client class Library Picture class Imagescout: Minimum network cost to get picture size and type Dominantcolor: Extract Picture main color Sample

iOS development language Swift Getting started serial-MethodsA method is a function that is associated with some particular type. Classes, structs, enumerations can define instance methods, and instance methods encapsulate specific tasks and functions for instances of a given type. Classes, structs, enumerations can also define type methods, and type methods are associated with the type itself. Type methods

iOS Development Swift Chapter-(ii) Variables and constantsFirst, the performance of the language(1) According to WWDC's displayOBJECTIVE-C has 2.8 times times the performance of Python when it comes to sorting complex objects, and Swift has 3.9 times times the performance of PythonThe performance of objective-c is 127 times times that of Python when implementing

13.1 You can use a is B to determine if object A is a B type, and the return value is a Boolean value 13.2 As can convert ordinary types, such as double,int,cgfloat, to convert 13.3 can use as? Convert the same to a parent class, the result can be nil or transformation success, so the result is an optional type, the conversion after successful use?. To access a method or property, or to make an optional binding. 13.4 If an object can be converted successfully, it can be con

iOS development language Swift Getting started serial-inheritanceA class can inherit (inherit) another class's methods (methods), property, and other attributes. When a class inherits from another class, the inheriting class is called the subclass (subclass), and the inherited class is called the superclass (or parent class, superclass). In Swift, inheritance is

Apple has launched Swift as the primary language for next-generation iOS and Mac, and Cocoa Touch Library has been rewritten with Swift, and currently Xcode6 beta support is developed with Swift,And now Swift writes a program that can debug and upload AppStore on the real ma

IOS: learning notes, Swift interaction with C pointers, and iosswiftSwift and C pointer Interaction Objective-C and C APIs often require pointers. in terms of design, Swift data types can naturally work with pointer-based Cocoa APIs. Swift automatically processes several common pointer parameters. in this article, we w

Li Hongqiang iOS develops swift -03_ strings and data typesOne, the stringString is data of type string, with double quotation mark "" Wrap text content Let website = "Http://www.wendingding.com"1. Common Operations for strings(1) Use Plus + to do string concatenationLet scheme = "/http"Let path = "www.wendingding.com"Let website = scheme + pathWebsite's content is "http://www.wendingding.com"(2) Use backsl

IOS: learning notes, mixed Summary of Swift and Objective-C, and iosobjective-cSummary of interaction between Swift and Objective-CUsing Objective-C in Swift (simple) When you create an OjbC file, XCode prompts you to create a XXX-Bridging-Header.h File Import the Objective-C class that needs to be introduced to

Swift's first IOS Program (Browsing web Pages) 1. Project Establishment A. Select the second project (Greate a new Xcode project) B. Select Application in IOS on the left, Singl View Application on the right, and next C. Enter the program Name in Product Name, such as fistIOS D. Select the program storage location 2. Start Encoding A. File description AppDelegate. the

on today's WWDC2014, Apple has released a new swift. In the description of Apple executive Craig Federighi, Swift is better than objective-c in every way, and there are not so many complex symbols and expressions. At the same time, Swift is faster, more convenient, more efficient and more secure. In addition, the new Swift