Swift

Recently the spirit is poor, sleep very late, Kangren said to do fitness card fitness, remember last August to run a fitness card, I only went a few times, of course, is due to a variety of reasons I do not have time, then very hard, now in the

Basic data TypesOc:integer int intvalue = 10;Floating-point double doublevalue = 10.10; float Floatvalue = 5.1;Chang LongShortSigned signedUnsigned unsigned the range of values for various types of data is different from the compiler for different

Previous address: Swift Practical introduction of hands-on teaching you to write 2048 (a)GitHub Address: Https://github.com/scarlettbai/2048.git. The previous article has already 2048 of the game block has been painted, this article to add a

Model definitions for entities:The class definition of the entity:@objc(ImageEntity)class ImageEntity: NSManagedObject { @NSManaged var imageData: NSData}Store:@IBAction func Saveimagetocoredata () {Letdelegate = Uiapplication.sharedapplication ().

Apple equipment is becoming more and more popular, holding a cell phone want to beat the drums, and then have this series, will step by step teach you to learn swift programming, learn to do their own App,github address:

Panda Pig • Patty original or translated works. Welcome reprint, Reprint please indicate the source.If you feel that the writing is not good please more advice, if you feel good please support a lot of praise. Thank you! Hopy;) Swift most of the

Panda Pig • Patty original or translated works. Welcome reprint, Reprint please indicate the source.If you feel that the writing is not good please more advice, if you feel good please support a lot of praise. Thank you! Hopy;) We know that in

definition : let 定义常量，一经赋值不允许再修改 varDefine variables that can still be modified after assignment //: # constant //: Define constants and set values directly let x = 20//: Once the constant value is set and cannot be modified, the

At present in the development of the use of Baidu Map app more and more, I found on the Internet, the integration of Baidu Map example is not many, so I will integrate my Baidu map process recorded down:First, the premise: installation Cocoapodssudo

Random numbers are used in many areas of development, and the use of random numbers is described below.Let's start with a little sample.Let Dicfacecount:uint32 = 16//define random number generation range Let Randomroll = Int (Arc4random_uniform

Group of Big God sent the website, feel useful on the first included, temporarily no time to see Swift, feel the code concise, but not too high reading, some code let the system to determine the type, the same, we look at the code when also have to

1. Defining strings in Swift is simplevar str = "Swift so Easy"2. String concatenationvar str2 = "but has all Keng"var str3 = str + str2So the STR and str2 splicing to STR3, is not much simpler than OCOther types of stitching with \ ()var age =

Everyone has been looking forward to the "from the beginning of learning Swift" on March 9 has been shelves, it is Dongsheng teacher spent 8 months of painstaking written, the book of more than 600 pages, based on the Swift 2.x, through a large

original articles, welcome reprint. Reprint Please specify: Dongsheng's blog if the necessary header files are introduced, theobjective-clanguage can be used inCThe data type. And inSwiftcannot be used directly in a languageCdata type, Apple

In the previous blog, code refactoring (i): function refactoring rules (Swift version), the refactoring rules for functions are described in detail, including:Extract method, inline method, inline Temp, Replace temp with Query, introduce explaining

original articles, welcome reprint. Reprint Please specify: Dongsheng's blog code layout includes : empty lines, spaces, line breaks, indents, and so on. The content of the code layout is much more workload, but very important. Blank LineEmpty

ObjectiveSwift is actually much more complex than objective-c, and Swift incorporates a number of new features compared to Objective-c, born in the 80 's. It also makes it more difficult for us to learn to master the language. But everything is

original articles, welcome reprint. Reprint Please specify: Dongsheng's blog Calculated Properties instead of storing the data itself, the data is computed from other storage properties. Calculate Attribute Concepts:the computed property provides a

Detailed objective-c closure of the simple application is to introduce the content, the main introduction is the application of closures , not many said, the article has been described in detail, we first look at the content of the detailed.Concept

Closure format:{(parameter)--(return value) inExecute code}1. If the closure is the last parameter of the function then it can be written directly outside the parentheses when called2. If the function accepts only one parameter as a closure, it can