IOS

InObjective-CThere are some things we are not familiar with but often seeData TypeSuch as id, nil, Nil, SEL, etc. We have seen this in many articles.Data TypeBut it is not clear. Objective-CSome interesting data types are often incorrectly

IPhoneApplicationCoreAnimationThe application and usage are described in this article,CoreAnimationIs Apple's user interfaceAnimation. Its framework is QuartzCore. framework. The project that needs to be added to this database during use. Let's take

IOSPlatformXML ParsingThe comparison and installation of class libraries are described in this article. In iPhone development,XMLOfAnalysisThere are many options,IOSThe SDK provides two class libraries: NSXMLParser and libxml2. There are also many

IPadAndIPhoneCallUIImagePickerViewControllerThe method is slightly different from the content described in this article.IPadAndIphoneFor details. We know thatIPhoneTo obtain the Photo Library in the following ways:

IPhone DevelopmentDaemonProcessAnd front-endProcessBetweenCommunicationThis is the content to be introduced in this article. When we create an application based on mobilesubstrate, there are usually some frontend and backend programs, such as apple

IPhoneUsed inUITableViewImplementationPagingThe effect is what we will introduce in this article,UITableviewThe ability to list and display a lot of content is also a frequently used component in our development. We oftenPagingDisplay the list, such

IPhone DevelopmentApplication in progressNSOperation MultithreadingUse is the content to be introduced in this article. First, create a Thread class, RequestOperation, which inheritsNSOperationThen, in the Controller class, create an

IPhoneBased on the Debug andReleaseStatus change to shieldLog outputThis is what we want to introduce. We often use it when developing applications.NSLogTo debug our program. As the project growsLog outputIt will become difficult to manage. When

Objective_CExtensionMechanismLearning is the content to be introduced in this article.Objective_CIt has been one year since the iphone was developed. FirstObjective_CWhen c/c ++ is used, the knowledge learned is based on c/c ++. In

XcodeBuilt-inSnapShotsUsage is the content to be introduced in this article. The main content is for us to understandSnapShotsFor more information, seeSnapShotsFunction, it seems to be inXCodeIt was added after 3.0. This function is very useful for

AboutSQLiteThe FAQ is what we will introduce in this article.SQLiteHow can we solve the problems we encountered? Let's take a look at the content. 1. How to create an auto-increment field? 2,SQLiteWhat data types are supported? 3. SQLite allows you

Cocos2dVariousViewConversion analysis in this article, aboutCocos2dYou are familiar with the following screen rotation:Cocos2dIf you want to set it to landscape, you only need to call the following function before attachView.

IPhone filesThe read/write System Operation tutorial is described in this article.IPhoneApp, which can only access some of its root directoriesFileThe so-called sandbox). An app is releasedIPhoneThe directory structure is as follows: 1. The app root

Objective-CMediumStatic variablesThe usage is described in this article,Objective-CGlobal supportVariableThere are two main implementation methods: the first one is the same as in C/C ++, and the "extern" keyword is used; the other is the singleton

IPhoneDeveloping applicationsUIViewWhat do you know? Someone once said that what you see on the iphone isUIView, SoUIViewInIphoneIt plays an important role in development. SoUIViewHow much do we know. Please refer to the following questions, If you

IPhone DevelopmentAbout NSInvocationOperationMultithreadingThe tutorial is the content to be introduced in this article, mainly to introduceThreadFor more information, see.MultithreadingProgramming is to prevent the masterThreadBlocking, increase

IPhoneHow to obtainHardware versionAndSystem InformationIs the content to be introduced in this article, mainly based on codeHardware versionAndSystem InformationTo see the details. ObtainIphoneThe system information of uses [UIDevice currentDevice].

CocoaMediumRunLoopThis article describes how to use the input sources of CFRunLoop object monitoring task tasks and schedule and control them when they are ready for processing. The Input Source sample may include the user's input device, network

Objective-CMediumNSLogThe Learning document is the content of this article.NSLogOutput format.NSLogFor more information about the impact on program performance, see. NSLog output format • % @ Object • % D, % I integer • % U unsigned integer

IPhone applicationsLearning notesObjectThe initialization of is the content to be introduced in this article, mainly to learnObjectThe initialization content. Code is included for easy learning! 1. About self = [super init] The first code to run is [