Swift

Original address Over the past few years, mobile apps have swept the world and have changed the way we use the Internet to work or relax. In order to create mobile applications, a variety of technologies emerged, and the development process began to

Swift code creates the Uilabel of the first controlThe control that creates the view is similar to the previous one, with the creation of some views in the viewdidload.First, set the frame to the label you want to create.Let Textlabel = UILabel

UITableView Basic operations (drop-down refresh, add Delete, group, search, etc.)注：本小结总结UITableview的一些基本用法Uitbleview inherits from Uiscrollview, and can only be used to display a column of data (currently only known here), sliding

Author: fengsh998 Original address:http://blog.csdn.net/fengsh998/article/details/32715833 Reprint Please indicate the source Assuming that the article is helpful to you, please leave a message or follow the public account fengsh998 to support me,

Extension uiview{//any UIView Add badge func showbadgevalue (#strBadgeValue: String), void{let TabB AR = Uitabbar (frame:cgrectmake (0, 0, +)) Let item = Uitabbaritem (title: "", Image:nil, tag:0) item. Badgevalue = strbadgevalue Let array = [item]

The width of Swift Uilabel is generally fixed, but the text is sometimes long and sometimes short, how to do the text after the label width of the appropriate narrowing so that the reality completelyIn fact, a lot simpler we

original articles, welcome reprint. Reprint Please specify: Dongsheng's blog Computer language learning has constants and variables, they are almost the soul of my code, leaving them I really "can't live"constants are preceded by identifiers with

Some advanced uses of GCD注：本小节总结几个GCD的高级用法1, Dispatch Groups (Dispatch Group)The Dispatch group notifies you when the entire group's tasks are complete, which can be synchronous or asynchronous, even in different queues. The issue of monitoring the

Let's take a look at the swift call Object-cFirst we create a OC class At the last step, I found a confirmation box, click Yes the system will generate a conversion bridge for Swift and OC.His naming

Three kinds of operation: is, as? and as!Swift is a strongly typed language, but also allows developers to pass the IS, as? and as! These three operations are to determine and cast the type. Where are is used as type judgments, and as? and as! is

Nsthread Downloading images asynchronouslyThere are three scenarios for dealing with multithreading in iOS, Nsthread, Nsoperation, GCD. Of course GCD should be the most convenient, we learn one by one. First understand the bottom, and finally use

Let's talk about the class method before we start the singleton mode. The singleton mode needs to rely on the class method to implementFirst, we know that the class method is called directly using the class name, without having to build the object

Protocol, delegate (proxy) mode注：本小节总结协议以及依靠协议实现委托，这将在以后经常被使用。是一个非常重要的模块Look at the official definition: The protocol defines a blueprint that specifies the methods and properties necessary to implement a particular work or function, a class, struct,

Code-Scenario 1://The values of the two properties are allowed to nil, which is best suited for use with weak references to solveclassPerson {Let name:string init (name:string) {self.name=name}//Weak referencesvar apartment:apartment?deinit {print ("

Code:structvector2d {var x=0.0, y =0.0}//Vector1 + Vector2Func + (left:vector2d, right:vector2d)vector2d {returnVector2d (X:left.x + right.x, Y:left.y +right.y)}//Vector1-vector2Func-(left:vector2d, right:vector2d)vector2d {returnVector2d

Swift initiates a network request that naturally has his own processing class nsurlrequest. This is the same as httpclient in Android. So this blog is just a record of the process, the code is relatively simple. Import UIKitProtocol

Swift 2.0 Study Notes (Day 3 )--swift 2.0 after the added keywordRead the previous study note what is a keyword and now prompt you to add defer, guard, repeat, catch, rethrows, throw, throws, and try keywords after Swift 2.0, where the Repeat

Title: A step has a total of n, if you can jump 1 levels at a time, you can jump 2 levels. How many total hops are in total, and the time complexity of the algorithm is analyzed. First, the topic is analyzed: The stairs have a total of n levels so

For beginners (like the author), closures are a difficult part of the swift language feature. Some of the reasons may lie in the fact that some people write complex functions very simply, and novices don't understand them. Closures can be

Reference text: http://www.cocoachina.com/swift/20150630/12305.html1, first you need to install Cocoapods. Fortunately, Cocoapods is built on Ruby, and the latest version of Mac OS X comes with Ruby. This has been done since OS X 10.7.Open the