Swift

Swift is a static, strongly typed language. It is well known for its simplicity, cleanliness and readability.　　　　　　 1, why is static language? First, the static language is more secure than the dynamic language. It does not allow conversions between

I. SUMMARY OF CONTENTSButtons are a very important component in all UI architectures, and the use of button UIButton in iOS is also very flexible, and this article will introduce the use of UIButton (based on Swift2.0) from the following

??original articles, welcome reprint. Reprint Please specify: Dongsheng's blog Passing references to parametersA class is a reference type, and other data types such as Integer, float, Boolean, character, string, tuple, collection, enumeration, and

1, System Sound Service Introduction:The System Sound service provides an API to play sounds for no more than 30 seconds. It supports file formats that are limited, specifically only CAF, AIF, and WAV files that use PCM or IMA/ADPCM data. However,

1, select the control's creation, and listen for control selection values 123456789101112131415161718192021 class ViewController: UIViewController {    override func viewDidLoad() {        super.viewDidLoad()         //选项除了文字还可以是图片  

Closures: Block reverse value in OC-like causes callback of codeFunc hasclosuremathes (arr: [INT],VALUE:INT,CB: (num:int,value:int)->bool)->bool{For item1 in arr{If CB (NUM:ITEM1, Value:value) {return True}}return False}In is a sign of closurevar v1

Set Fillet buttonButton . Layer . bordercolor = Uicolor . Whitecolor (). Cgcolor ;Button. Layer . BorderWidth = 2;Button. Layer . Cornerradius = +;Set rounded border TextViewInputtextview . Layer . bordercolor = Uicolor (red:60/255, green:40/255,

Static libraries and dynamic librariesFirst, add the knowledge of the static and dynamic libraries. I am not familiar with this part of the content, no development experience, such as the wrong welcome to face.Static LibraryThe code of the Static

The recent swift fire also wants to try to use it, considering that Swift comes out for a short time, and whether it is too mundane for Apple to update or not to develop existing projects with Swift.Let's take a look at the problems I've encountered:

You must be familiar with the observer pattern in object-c. Swift provides a simpler way to implementWhen we need to assign values to the object's property values, we can use Willset and didset to observe the changes in the object's property

Swift 2.0 Study Notes (Day 3 )--Swift 2.0 after the added keywordRead the previous study notes.What are the keywords that are now prompting you inSwift 2.0then addDefer,Guard,Repeat,Catch,Rethrows,Throw,Throwsand theTrykeyword, whereRepeatkeyword

Today, in an iOS training site to see a blog, speaking of ns_options in swift implementation, write a relatively profound and comprehensive, small part of it to organize, share out, hope to everyone in iOS application development help it.In iOS

??Swift 2.0 Learning notes-my first line Swift Codewhen I first saw the following code, I petrified, what is the code? The words spelled out?  Import Foundation     var str = "HelloWorld"        print (str)           dizzy, okay, keep your head

After the swift language comes out, it may be possible for new projects to be developed directly using swift, but there may be situations in which some classes that have been written with OC or packaged modules are not ready to be written again in

Implicitly unwrapped optionals implicit parsing optionsMentioned above. Optional means that the constant or variable "has no value". The optional if declaration is used to infer whether a value exists, assuming that there is a value for the analysis

////Main.swift//C150805_LIBXML2R2// http://git.oschina.net/yao_yu/Swift2015/tree/master/C150805_libxml2r2?dir=1&filepath=c150805_libxml2r2&oid=f80a7498226526b991e7913298c15cd38480aea5&sha= c073af33d0534a10098bb8fcc0706c2fd489dc3f////Created by

Application Sandbox structure Analysis1. Application Package: Contains all the resource files and executable files2. Documents: Saves data that needs to be persisted when the app runs, and it backs up the directory when itunes syncs the device3. tmp:

I said in the previous article, give a function name is best to let a person through the name of the approximate function of the function, rather than let people read the internal code to know what your function is, everyone is a programmer, you do

The article comes from "functional programing in Swift", this series is just a summary of some of the contents of the post-viewingWrapping Core ImageIn the previous article, we introduced higher-order functions and demonstrated how functions are

I. Creation of group animationsStart by creating a group animation, which is the animation of the change in size and transparency.//Size Change LetScaleanimation = Cakeyframeanimation (keypath:"Transform.scale") Scaleanimation.keytimes = [0,0