Swift

1, barcode (one-dimensional code) of the scan readOriginally wrote an article on how to use the camera scan to read two-dimensional code: Swift-Two-D code QRCode read (from the image read, or through the camera scan) to read the barcode through the

1 to construct a long string, you can create an empty string as the initial value. You can assign an empty string literal to a variable, or you can initialize a new string instance:2var emptystring ="" //empty string literal3var

Since Apple released Swift, there is something new on Xcode---"Playground". Playground is like a playground where we can play in the world of code, and in this blog we'll show you how to use playground to quickly get started with swift programming.

Cctouch Class Reference Inherits from NSObject Declared in CCTouch.h OverviewThin wrapper around Platform-specific touch events (ie Uitouch). Cctouch is platform independent version of the "Touch

Recently in the development of software with Swift, but iOS8 requirements more stringent, before the method of obtaining the width of the string, I wrote a, although very simple, but I hope to share with you.//MARK: Returns the width of the string

I really can't think of how to get a good Chinese name, or use the original tutorial name,block Party BarIf you think the previous tutorials are simple, it's time to start making it harder. In Tetris Games, our bodies are those shapes, and each

Core data is used to persist data, which is a technology based on the SQLite database.So how is it implemented in Swift?First, you need to create a new template, open the project in the Xcdatamodeld file, click "Add Entity", this time, the creation

About optional Values optionalUnlike Oc,swift, the introduction of a new concept-an optional value-to understand the optional is essential for Swift's learning Concept definition: A type that can have a value or can have no value (nil). In other

The implementation of Ns_option in OBJC in Swift is achieved not through enum, but through conform Rawoptionsettype protocol's struct.The code is as follows:struct Test:rawoptionsettype { Typealias RawValue = UInt private var value:uint = 0

The construction rule in inheritance is a difficult point. If there is a problem, please leave a message to ask me.My Swift Introductory Tutorial columnWhy have constructors: Assign an initial value to the stored properties of the class itself and

downloaded the 2 Department Swift the video, now because there are two pages of the video can be free to learn, so or choose the resources on the Internet, one is the wheat college, one is a geek college, because I am a junior student, development

Create articles, welcome reprint. Reprint Please specify: Dongsheng's blog  Core FoundationThe framework is Apple's offering a set of concepts derived fromFoundationframework, programming interface forClanguage-styleAPI. Although inSwiftThis is

Automatic reference counting of Swift learning The main learning and research is "memory leaks from leaks" and "strong references resulting from the use of closures" resulting from a direct encounter between the instance object and the

String Differences between the strings in OC and Swift When the string type is nsstring in OC, the string type in Swift The string @ "" In OC, the string "" in Swift String in Swift is the first struct with higher

This article describes an iOS APP that converts images into ASCII characters and is written in Swift.For example, we use the famous Rena photo as the original image. After the app has been converted into a character drawing, we print it out, the

Closures are self-contained function modules that can be passed and used in code, much like blocks in C and OC, and Lambdasbas expressions in. Net.Closures can capture and store references to any constants and variables in the context in which they

Before the project needs to achieve an alarm clock, GitHub found a half-day discovery is very old code, so prepare to write a, just recently in the study of Swift, with Swift wrote a demo put here: https://github.com/Phelthas/ Demo_alarmclock Effect

Swift has 74 built-in functions, but in Swift's official documentation ("The Swift programming Language") was recorded only in 7. The remaining 67 are not recorded. This article lists all of the built-in functions of Swift. The so-called built-in

Jane Book Address: Http://www.jianshu.com/p/ad71c94e7bc6An example of a simple translation made in a few minutes by StackOverflow's question and answerDirect code, but more explanation//这是我们的modelclass imageFile { varString() var fileID = Int(

http://blog.csdn.net/lzx_322/article/details/28861199The SWIFT function uses the previous need to add Func with return values that need to be added back with the return type, it is easy to understand, in the English version of the PDF document when