手机类毕业设计外文翻译.doc

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1、学号：07416522毕业设计（论文）外文翻译（2011届）外文题目 Introduction to the iPhone 译文题目 iPhone 说 明 书 外文出处 WowBook.Com Introduction to the iPhoneWe are about to study the idea of a computational process. Computational processes are abstract beings that inhabit computers. As they evolve, processes manipulate other abstrac

2、t things called data. The evolution of a process is directed by a pattern of rules called a program. People create programs to direct processes. In effect, we conjure the spirits of the computer with our spells.The iPhone is one of the most distinctive game platforms currently available. The touchsc

3、reen, integration with iTunes, programming in Objective-C, low development cost,and ease of publishing all make for a very strange but promising new developmentopportunity. As the newest kid on the block, the iPhone instantly captured a noticeableportion of the mobile phone market and inspired a wav

4、e of copycat devices by makerssuch as Motorola, Samsung, and LG.As a programmer, you might not be impressed with sales figures and market shares,but you should be interested in the viability of the iPhone as a whole. If no one ownsan iPhone, no one will buy the games you make for it. The good news i

5、s that even inthe face of the 2009 economic downturn, iPhones continued to sell.To get started with the iPhone, youll need to get a free Apple developer account. Nextyoull download the iPhone SDK on your Mac, which also contains the Xcode IDE andInterface Builder tool for laying out screens. (Apple

6、doesnt provide a toolkit for Windowsor any other non-Mac platform.) And because the iPhone API requires you towrite in Objective-C, you will need to read a primer on the language if you do notalready understand it. This chapter takes you step by step through all of these tasks.Apple Developer Accoun

7、t and Downloading the SDKThe first step in setting up your iPhone development environment is to register an Appledeveloper account. Signing up for an account is free and gives you access to Applesonline documentation, tutorial videos, and the SDK download:1. Go to 2. Click the Register link, and the

8、n click Start Now. Choose the option to create anew Apple ID, or to log in using an Apple ID from an iTunes or App Store account.3. Once you have registered, you can log in to the iPhone Dev Center.4. Apple may already have emailed you a link to download the free SDK, or you maychoose to download th

9、e SDK using the link from the website. Note that you shouldnot download Xcode separately because it is included within the SDK downloadpackage (and the version of Xcode that comes with the SDK may be newer thanwhat is otherwise available).5. Once downloaded, install the SDK, which will make Xcode an

10、d Interface Builderaccessible to you in the /Developer/Applications folder on your hard drive (you canalso activate Spotlight and search for Xcode and Interface Builder to launch eitherapplication quickly).The free developer account will allow you to build applications and run them in asimulator on

11、your Mac. However, to load your application onto a phone, you will alsoneed to sign up for the paid developer program. This requires a small annual fee, soeven if you are a private developer, it wont hurt your wallet too much:1. Go to 2. You will have two options: Standard Program and Enterprise Pro

12、gram. If you arewriting games for the general public, you probably do not want the EnterpriseProgram. If you read closely, you will notice the Enterprise Program is actually forcreating applications that only you and your company will use internally. If youplan to create games that will be sold via

13、the App Store, rest assured that theStandard Program is the correct choice for you.3. Select Enroll Now and log in if necessary.4. You now have another choice: enroll as an individual or as a company. If youchoose Individual, you will not be able to add other programmers or quality assurancemembers

14、to your account, which is necessary to distribute your applicationto others during the development and testing process. However, if you select Company,you will be required to provide detailed information about your company.5. Continue through the website, selecting the appropriate information, until

15、 youarrive at a screen that says “Thank you for submitting your enrollment.”Now youmust wait for an email from Apple (which may take on the order of a month toarrive).Signing up for the paid developer program will also give you access tobeta releases of future versions of the iPhone OS and SDK, but

16、onlyduring the times at which Apple chooses to make them available.It is good to get your paid developer account enrollment going as soon as possible sothat it will be available when you actually need it.Application BundlesWhen you build an application using Xcode, the end result is called an applic

17、ationbundle. In Mac OS X and the iPhone, an application bundle is a special type of directory2 | Chapter 1: Introduction to the iPhoneDownload at WoweBook.Comthat holds an executable file and the resources needed to run it. This includes an iconto represent the application, files with special inform

18、ation about the application, andany images or sounds the application uses.In the Finder, an application bundle simply appears as its applicationicon; right-click or Ctrl-click on it and select View Package Contentsfrom the menu to see whats inside.Although you cant do this on the iPhone, you can fin

19、d iPhone applicationsin the iPhone Simulator. If you have the iPhone SDK installed,you can use Spotlight to search for the MobileSafari.app file. Show thisfile in the Finder (dont try to run it on your Mac), and view its packagecontents (some of which appears in the following list).A typical iPhone

20、application bundle might have the following structure:Executable(Required.) This is the compiled code executable; it will typically have the samename as your application. In MobileSafari.app, this is the file named MobileSafari.Info.plist(Required.) This is a collection of properties, in key-value pair form, that specifiesimportant information about your application. Notable properties listed here arethe display name of your application, the version number, and a unique ID number.