IOS

Holydancer Translation: Csdn column converted from holydancer, original address: http://blog.csdn.net/holydancer/article/details/7484579 Original article: IOS Developer Library Technical Q & A qa1561 How do I programmatically quit my IOS

First, let's talk about the differences between armv6 and armv7: What is armv7?It's a new CPU architecture of iPhone. Make some apps run faster. What does armv7 to do with me?Here is a post by most_unique found on iphonecake. Most apps today use

1. During Project Creation, IOS simulators often encounter slow operations. For example, if a uialertview pops up and is pushed to a viewcontroller, the process is very slow and the xcode console prints the following sentence: Simulator

I. Certificate export 1.1. Preliminary work First, you needAppleOfDeveloperAccount, a Mac system. If you do not have an account, go to http://developer.apple.com/to apply for Apple's Developer Program. I will not go into details on how to apply

IPhone: nsdata year, month, week, day, hour, minute, second acquisition and nsdatatonsstring Method   Obtain time information in nsdate, year, month, week, day, hour, minute, and second: Nscalendar * Calendar = [[nscalendar alloc]

I believe that I am a friend of IOS developers and will not be unfamiliar with the asihttprequest library. Next I will share my experiences on using asihttprequest to monitor traffic. What I need to declare in advance is only in wwan (GPRS/EDGE/3G)

IPhone asynchronously loads ImagesAsyncimageview. h file@ Interface asyncimageview: uiview {Nsurlconnection * connection;Nsmutabledata * data;}@ End Asyncimageview. M file@ Implementation asyncimageview -(Void) loadimagefromurl :( nsurl *) URL {If

Reprinted from: http://blog.csdn.net/w59879213/article/details/7208288 I searched through the Internet and introduced many articles on uitableview paging. They are all very uniform and the code is correct. I just didn't sort out my ideas. I am here

IOS supports multiple levels of multi-threaded programming. The higher the level, the higher the abstraction level, and the more convenient it is to use. It is also Apple's most recommended method. The following lists the multi-threaded programming

IOS is an operating system derived from MACOs that is not released for mobile devices (iPhones.The UI concepts of iOS and Mac OS are quite different. iOS mainly supports gesture operations, including multi-contact technology.From the developer's

Create and delete:// Create a file managerNsfilemanager * filemanager = [nsfilemanager defaultmanager];// Obtain the path// Obtain the path of the nsdocumentdirectory ParameterNsarray * paths = nssearchpathfordirectoriesindomains

Modol View Controller (MVC) is one of the earliest and most successful design patterns that can be reused. It was used successfully in a program written in smaltalk for the first time in 1970s. Based on the MVC design model, the overall architecture

What is category? The category mode is used to add methods to existing classes to expand existing classes. In many cases, category is a better choice than creating subclass. The newly added method will also be automatically inherited by all

A delegate is also called a proxy, which is a common design pattern in iOS development. With Protocol (refer to the blog post: Objective-C protocol), we can easily implement this design mode.What is proxy? Apple's official documentation provides a

The Singleton mode is used when a class can only have one instance. Generally, this Singleton mode indicates a physical device, such as a printer, or a virtual resource or system attribute that cannot have multiple instances at the same time, such

Cfnetwork C library programming is recommended for iPhone standards, but programming is quite annoying. In other operating systems, classes are often used to encapsulate socket functions. For example, the casysncsocket MFC. In the iPhone also has

What is the difference between shallow replication and deep replication? // Shallow copy and deep copyAnswer:Copy: only copies the pointer to the object instead of the referenced object. // Access this object through the object pointerMutablecopy:

The Singleton Mode means that there is only one instance. The Singleton mode ensures that a class has only one instance, and the instance is self-instantiated and provided to the entire system. This class is called a singleton class. 1. Highlights

In my project, a new uiview class is created after the map class. . H file # Import # DEFINE _ weith 320/3. # DEFINE _ height 330/3 @ Interface view: uiview @ End . M file // // View. m // 122chezhu01 // // Created by Xumin on 7/8/13. //

1. Run the logic code: -(Void) execbackrgoundmethod{ /* Use this method to release shared resources, save user data, invalidate timers, and store enough application state information to restore your application to its current state in case it is