ios development tutorial swift

Swift 2.0 Exception HandlingWWDC 2015 announced the new Swift 2.0. This major update provides Swift with new exception handling methods. This article will be discussed mainly around this aspect.How do I build an exception type?In IOS development, we face a lot of exception h

objective-c block or the C language function pointer understand thoroughly, can be regarded as a block of code, and then Self.dataarray, then executes the code block, but repeated calls, the Lazy property of the code block will only called once , the lazy decoration is a storage property, and the store is a closure, I think inside, should be optimized Personal humble opinion, there is a static storage space inside, when the space is not value, will execute the closure code, return value, wi

The Ppiflatsegmentedcontrol project is a popular open source iOS control library that provides a flat style (Flat style) Segmentedcontrol that can be customized segment colors, icons, sizes, etc. Very flexible and beautiful. The effect is as follows:However, as a OC project, when we were programming for OC and Swift, there were some problems due to the use of block in Ppiflatsegmentedcontrol's creation inst

Error handling in Swift is inherited from O-c, but Swift has changed dramatically since the 1.0. Important changes occurred at Swift 2, which pioneered the use of "handling unusual states and conditions" to make your app easier. Similar to other programming languages, in Swift, choosing which error-handling technology

Reprinted from: Http://www.infoq.com/cn/articles/from-android-to-swift-ios?utm_campaign=rightbar_v2utm_source=infoq utm_medium=articles_linkutm_content=link_textFrom Android to Swift iOS development: Language vs. frame comparison I've been developing Android since 2009 a

()Maxpassengers= 5Numberofwheels= 4 }override func description () -> string { return super. () + ";" + "Traveling at \ (speed) mph" }} /span> In addition to overloading functions, the properties of a class can be overloaded in subclasses, such as the getter and setter methods:Class Speedlimitedcar: Car { Override VarSpeed: double { get { return . Speed } set { super.= Min (newvalue,40.0) } }} /span> Using a @final tag class, you can prohibit ov

Android and Swift iOS development: language and framework comparison, androidios Swift is the language that Apple currently promotes. It was launched in 2014 and is 10 years younger than Scala and other "new" languages. In the autumn of 2015, it was already open-source. Currently available on linux, Android NDK has bee

] () //declares an empty array, the elements inside the array are Int, the version before Xcode6 BETA4, the notation is: int[] () var namearrayc = ["Hello", 123]//add Element Namearraya.append ("Zhao Liu") println ("Namearraya = \ (Namearraya)") to the array // Replace the element inside the array namearraya[0] = "First" println (Namearraya) //Delete the element inside the array namearraya.removeatindex (0) println (Namearraya) //Delete the last element Namearraya.removelast () println (Namea

IOS development language Swift getting started-Basics Swift> is a new language for iOS> and> OS X> application development. However, if you have> C> or> Objective-C> development experie

Swift development-Storyboard usage tutorial, swift-storyboard If the App contains many different pages, using Storyboard can help you reduce the code for redirecting between pages. In the past, developers created interface design files ("nib" or "xib" files) for each View Controller. Now, only one Storyboard can captur

First look at the effect:1. Before we made the login interface UI, implemented the network request, if the user entered the wrong VIP number, should prompt the user "VIP number is incorrect"2. In Android, we have toast can be used directly, in iOS, seemingly no such native controls, then we introduce a third open source framework:Toast-swift3. Let's revise the Podfile:/users/jimi/documents/ios/demo/logindem

OverviewFrom the time of writing the first Swift article to now Swift has grown from 1.2 to today's 3.0, during which the part of the code in the first article has not been able to run in the current Xcode environment because Swift is not backwards compatible in the development phase. Apple unveiled Swift3.0 on WWDC16,