Swift

1. Enumeration　　 Create an enumeration with enum-note that the enumeration of Swift can be associated with methods: enumRank:int { CaseAce =1 CaseThree, four, Five, Six, Seven, Eight, Nine, Ten CaseJack, Queen, King func simpledescription

Variables and constants　　Swift declares a variable with Var and let declares a constant.Myconstant cannotbe modified Type deductionSwift supports type inference, so the above code does not need to specify the type if you need to specify the type:"

ObjectiveThis article, about a new feature of Swift (curry function), many iOS developers may be the first time to listen to the word, including myself, I also took a few days to summarize, I hope to help you, personal feeling biased with the

1. Requirements: Use the proxy to achieve the reverse value (example using the button in the second view controller to change the contents of the first View Controller label)One, the first interface1 classViewcontroller:uiviewcontroller,

Previously recorded by Swift enumeration (1), this is the continuation of it, continue to say enumeration, see the following definitionEnum Trainstatus {Case OnTimeCase Delay (INT)//with associated values}var mytrainstatus = Trainstatus.delay

Class Tabbarviewcontroller:uitabbarcontroller{var tabbarbgimg:uiimageview?var tabbarbgimgselected:uiimageview?var Selectedbutton:uibutton? Mark the selected buttonOverride Func Viewdidload (){Super.viewdidload ()Self.view.backgroundColor =

Swift has an underlying boolean type called BOOL. Boolean values are also known as logical values, because their values are only ture or false. Swift provides two Boolean constants, True and false:Let Orangesareorang = TrueLet turnipsaredelicious =

Headfirst design mode This book is very good and ready for one months to finish. The book speaks very clearly.Design principles:1. Find out where changes may be needed in your application, separate them, and don't mix with code that doesn't need to

4. Constants and variable declarationsThe variable declaration of OC uses the way the type variable name = variable value, where the type is a system built-in data type or a custom type, the variable name must start with the English letter and

In the development of the Android project often used to encapsulate the functionality of common functions to use, one is to reduce the amount of code, the other looks concise, and for Apple development also like to encapsulate into a control, and

A class is made up of properties and methods, which are generally accessed by data members, and in Object-c, properties are designed to access the encapsulated data members, the properties themselves do not store data, the data is stored by data

In order to listen to changes in properties, Swift provides attribute observers, which can listen to changes in storage properties, even if they are different before and after the change, but they can not delay changes in storage properties and

Generics (generic) allow us to define a number of mutable parts in a program, specify at runtime, use generics to maximize code reuse, secure types of security, and improve performance.1. Generic functionsAfter the function name is added , the

Swift uses Baidu Map API encountered before the pit on Android used Baidu map, thought probably similar, also did not carefully read the document, the results of their own pit the attention matters, http://developer.baidu.com/map/index.php?title=

The so-called construction process refers to a series of preparatory processes that are performed in creating an instance. For example, set an initial value for an attribute in an instance and perform other initialization work.The construction

1. Basic operatorsUnary operators:--, ++.-Arithmetic operator two-tuple operator: subtractionArithmetic assignment operator: a+=b,a-=bRelational operators: ==,!=,>,=,Logical operator:!,&,&& (short-circuit and, increase speed of operation), |,| |

A slider is a gradual and gentle way to show a setting or a progress. The base class of the slider is UISlider, and the properties are relatively simpleThe primary is the minimum value and the current value.Settings are as follows:You can see below

After we used our own defined controller, we found that the restaurant on the TableView was gone, so we add the data, add a new restaurant class, this class we don't need to inherit the class of the system, just add a swift file.Import

The swift language is simple, it feels good to get started, and today, when using Swift to call Cocoapods's afnetworking, always prompt "' afnetworking/afnetworking.h ' File not found", StackOverflow on the top of the search did not find the final

Well, it's said that blogging can find a good job, so I'll share a project!First do a self-introduction: I graduated 1.5, work is a radio and television industry with a video editor in a module, with the development of MFC (Do not know MFC, is