Swift

With AirPrint, you can easily transfer lossless photo and document printing from IOS and OS X apps. Of course, printers also need to support AirPrint technology. The following sample shows how to print using AirPrint in an app. 1, Printer

We often see a lot of apps on the market, and each time it pops up a box and asks if you want to give it a cent on the app store. If you choose to, you will automatically open the App Store and display the home page of the application, where users

Records for easy access. Just part of the explanation.Install and configure the Controller nodeKeystone User-create--name Swift--Pass Swiftkeystone User-role-add--user Swift--tenant Service--Role Adminkeystone Service-create--name

For loopSwift provides two kinds of for-loop forms: (1) for-in is used to traverse a range (range), sequence (sequence), set (collection), and all elements within the series (progression) execute a series of statements. (2) for conditional increment

In the previous section we completed the creation of shape , and now the elements in the game (Blocks,shapes) have been completed and the background is set (array2d), let's start making the rules of the game. First of all, we need to get our shape

The best tutorial??Http://www.raywenderlich.com/76436/use-uiscrollview-scroll-zoom-content-swiftThere's a lot of confusion when you look.So I went through a lot of Uiscrollview's knowledge here to summarize, although I saw a lot of oc things, but

ProgressBar is a very small thing that will be used in many places. Perhaps the Internet connection, perhaps the app itself has a lot of things to load. The default is only one rotating chrysanthemum, which is obviously not enough for creating a

//Playground-noun:a Place where people can playImport UIKit//for-in Cycle//1 times the number range forIndexinch 1...5{println ("\ (index) times 5 is \ (index)")}//2 times the enumeration groupLet names = ["Anna","Alex","Brain","Jack"]

provides a collection of dictionaries in the foundation framework that are composed of key-value pairs. The key collection cannot be duplicated, and the value collection has no special requirements. The elements in the keys and values collection can

The Swift struct is a common and flexible construct for building code.We can extend the functionality of a struct by defining attributes (constants, variables) and adding methods for the struct body. Unlike C and Objective C:Structs do not need to

Construction Processin order to generate instances of classes, structs, enumerations, and so on, the preparation process is called the construction process. For this process, we typically define a method to complete, which is called the constructor.

Some new features of Swift 3.1Recommended orderThis article comes from the contribution of the park study, introduces the new features of Swift 3.1, and thanks to the grant of parking. The following is the body of the article.BodyApple has finally

Continuation of the previous article to do the next test, the environment is a proxy and three storage.1. Performance testTest one: Five threads, each of which uploads a file with a size of almost one G/data/swift/upload> Du-sh Test*.zip987M

The following steps are performed on the controller node1, remote access to/etc/swift/swift.conf files:Https://git.openstack.org/cgit/openstack/swift/plain/etc/swift.conf-sample?h=stable/newton2. Modify the/etc/swift/swift.conf configuration

This digest from: http://blog.csdn.net/mmoaay/article/details/48422309 This article is based on Xcode 6.4 and Swift 1.2 Important InformationUsing Swift with Cocoa and OBJECTIVE-C official documentationWhy mixed? Language

Use let to declare a constant and declare a variable with var. The value of a constant is not required to be known at compile time, but you must assign it a value once. This means that you can use constants to name a value and then define multiple

ObjectiveSwift is actually much more complex than objective-c, and Swift incorporates a number of new features compared to Objective-c, born in the 80 's. It also makes it more difficult for us to learn to master the language. But everything is

1,anyobject: Represents an object instance of any class type. 1234567891011121314151617 class Man{}class Woman{}let man = Man()let woman = Woman()var arr:[AnyObject] = [man,woman]for people in arr {    if let m = people as? Man {   

Swift's closures and C,oc block are similar, in fact, the global and nested functions in Swift is actually a special closure, there are three types of closures:(1) A global function is a closure that has a name but cannot capture any value(2) Nested

Disclaimer: This article is transferred from an online article. This article is only for personal favorites and shared knowledge. If there is any infringement, please contact the blogger to delete it. Original article Cui