ios development tutorial swift

iOS development language Swift Getting started serial-enumerationEnumerations define a set of related values for a common type, so that you can use them in a safe way in your code.If you are familiar with the C language, you will know that in C the enumeration specifies the correlation name as a set of integer values. The enumerations in

iOS Development Swift Chapter-(vi) Process ControlI. Process Control in SwiftThe process structure supported by Swift is as follows:Loop structure: For, for-in, while, do-whileSelect structure: If, switchNote: These statements must be followed by curly braces {}, which are not required in the C languageDescription: In

generate development certificates, without manual intervention. But assuming that the development center has a distribution version of the certificate, it will report an error(Environment, Xcode 6.1), the solution to the development center to remove the distribution version of the authorization file (no impact on the online app)7. Note that you must select

iOS Development Swift Chapter-(vii) functionDefinition of a function(1) The definition format of the function1 func function name (formal parameter list)--return value type {2 //function body ... 3 4}(2) format of formal parameter listFormal parameter name 1: Parameter type 1, parameter name 2: Parameter Type 2, ...(3) Example: Calculates the number of 2 int

(request:amapregeocodesearchrequest!, response:amapregeocodesearchresponse!) {println ("request: \ (Request)") println ("response: \ (response)") if(Response.regeocode! =Nil) {var title=response.regeocode.addressComponent.city var length:int{returncountelements (title)}if(Length = =0) {title=Response.regeocode.addressComponent.province}//assigns the title and subtitle of the location callout, displaying the address information of the anchor point in the bubbleMapview?. Userlocat

) represent the characters d o G and! , their UTF-16 code units and UTF-8 are identical.The five and Sixth code unit values (55357 and 56374) are UTF-16 representations of the dog face character. The first value is u+d83d (decimal value is 55357) and the second value is u+dc36 (decimal value is 56374).Unicode scalarYou can access its Unicode scalar representation by traversing the Unicodescalars property of the string. It is an attribute of type Unicodescalarview, and Unicodescalarview is a coll

IOS -- Singleton design mode (excerpt, non-original) in Swift development, iosswift Recently, I have developed a small application and encountered some common Singleton modes in Objective-c, but there are some differences in swift, I tried to find out that I couldn't play the cards by using common sense (normal oc to

　iOS in Modern computer languages, object-oriented is a very important feature, and the Swift language also provides object-oriented support. Moreover, in swift language, not only the class has object-oriented characteristics, but also the structure and enumeration have object-oriented characteristics .　　1. Classes and structs in SwiftThe syntax for classes and s

iOS Development Swift-(c) strings and data typesOne, the stringString is data of type string, with double quotation mark "" Wrap text content Let website = "Http://www.wendingding.com"1. Common Operations for strings(1) Use Plus + to do string concatenationLet scheme = "/http"Let path = "www.wendingding.com"Let website = scheme + pathWebsite's content is "http://

Swift and iosswift in ios development 　In modern computer languages, object-oriented is a very important feature of iOS, and Swift language also provides object-oriented support. In addition, in the Swift language, not only classe

versionDispatch_once (this really can't be translated)The traditional OC approach is also supported in Swift, which obviously has no advantage over the other way, but write it down.class Singleton { class var sharedinstance:singleton { struct Static { Static 0 static var Instance:singleton? = Nil } dispatch_once (static.oncetoken) { = Singleton () } return static.instance!