IOS

IPhone GPSLocating System instances is what we will introduce in this article. First, let's take a look at the details of this article. Today,GPSMore and more functional mobile devices are used.GPSThe positioning system can precisely locate your

AnalysisCore ServicesLayer is the content to be introduced in this article. We will introduce the content of this article from multiple aspects.Core ServicesLayer provides basic system services for all applications. Maybe applications do not

AppleDevelopment languageOpenCL MultithreadingThe source code for synchronization is described in this article. First, let's take a look at it.OpenCLThat is, Open Computing Language, which is composedAppleThe company drafted and designed a computing

IPad DevelopmentSoftwareInterfaceThe design specification is the content to be introduced in this article. It introduces the content of the design specification in detail. Features 1. Large Screen, resolution 1024x768 2. emphasize that there is no

IPhoneApplicationUIView AnimationThe implementation effect is the content to be introduced in this article, mainly to introduceUIView AnimationFor more information about the presentation methods of UIView animation on the iPhone, see the

Objective-CStudy NotesObject-orientedProgramming is the content to be introduced in this article.Object-orientedFor senior C ++ programmers,Object-orientedProgramming is not a new concept. The concepts of classes, objects, instances, and methods are

IPhoneOSFrameworkIs the content to be introduced in this article,IPhoneOS (now called iOS) is the operating system for iPhone, iPod touch, and iPad devices. Let's take a look at the details. 1. Core OS: It is a Darwin written by FreeBSD and Mach,

IPhone dataAboutSqlite3. Use a third-party frameworkFMDBIs the content to be introduced in this article.IPhoneUseSqliteProceedDataStorage is a habit. It is generally used to other platforms.SqliteFor example, android. Some encapsulated third-party

Objective-CBasic syntaxClassDefinition is the content to be introduced in this article,Objective-CIs an object-oriented language, soClassIs the basis.Objective-CIt is the super of C, but its syntax is a little different from that of C, especially

DetailsIOS developmentApplicationConcurrent Dispatch QueuesThis document introduces almost all tasks completed by threads in the scheduling queue. The scheduling queue is simpler, easier to use, and more efficient than the thread code. The following

UseLuaPlusIntegration in C ++ ProjectsLua scriptImplementation is the content to be introduced in this article, mainly to learnLua script. It took two days to complete integration in the C ++ project.Lua scriptFeasibility analysis. The following job

Tutorial description Tools used: iOS SDK Execution difficulty: normal Operation Time: 15 to 30 minutes Importance of device data First, we need to clarify the question: why do we need to access device data? If you encounter problems

Bad habits can refer to regular and subconscious negative behaviors. Game Development can be said to be a repeating cycle or process, but how do we define bad design habits? This problem is just as difficult as defining game designers. We can say

Date selector: To load the selector to the current date and time every time the software is loaded, you must create a new NSDate object in viewDidLoad, in this way, this object contains the current time and time. Set datePicker to this date, so that

If you open a program subdirectory, you can find three folders:Documents: The application stores its data in Documents, except for preference settings based on NSUserDefaults.Library: preference settings based on NSUserDefaults are stored in the

There are many ways to create a button with rounded corners. Here we only introduce the method of using Layer, which makes the efficiency of the layer unsatisfactory, but there is absolutely nothing to say about the effect. The following code uses

What should I do if the program crashes in objc_msgSend? The most likely reason is that when you send a message to a released object, or although the pointer is correct, the content is damaged by other objects (such as out-of-memory ), or a dangling

The network must contain Reachability. database h, judgment function: + (NSString *) checkNetWork {Reachability * reachAble = [Reachability failed: @ "www.baidu.com"]; switch ([reachAble currentReachabilityStatus]) {case NotReachable: return @

1. code to determine whether the mailbox format is correct: // use a regular expression to verify-(BOOL) isValidateEmail :( NSString *) email {NSString * emailRegex = @ "[A-Z0-9a-z. _ % +-] + @ [A-Za-z0-9. -] + \\. [A-Za-z] {2, 4} "; NSPredicate *

"Xcode for iOS development" briefly introduces some features of Xcode4.0 and later versions. It also selects development tutorials and experiences shared by members and some hot topics in the Forum, hoping to give new users some suggestions. Basic