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. Objective C does not have the Namespace concept. To avoid naming conflicts, prefixes such as NSString and NS are generally used. You can use the function or company name abbreviation as the prefix.5. For code comments, Objective C generally uses Docxgen to generate code documents.6. cocoa and Cocoa Touch provide the Foundation Framework, AppKit, and UIKit interfaces that use Objective C object-oriented object interfaces. However, a considerable number of Apis still use C interfaces, such as th

During the development of the iPhone today, a random number is generated. Soon rand () and arc4random () both entered the scope of consideration, but it was a bit difficult to choose. In the past, I may have chosen to use it without thinking about it. However, this conscience cannot be too casual. How should we choose between rand () and arc4random? After investigation, we found that this problem was well answered below. There are several embedded r

Often see someone ask: "Android version sent out of the picture how so slag!" It's far worse than the iphone! ”。 It's not just that many of the images used in Android are much less than the iphone version, so what's going on?Our team initially struggled with this problem, a half-day effort, around a good big circle, until finally found that this is Google made a "small" error, and has been wrong to today.Go

White Apple Repair Prerequisites: In the white Apple State, Ifunbox can be online to repair the method (some friends can not connect to the computer, you may try this method in the state of white Apple Press home+ boot button forcibly restart the phone after the connection to the computer): Tools to use: Ifunbox Detailed Tutorial: 1, with Ifunbox, open the "/system/library/launchdaemons directory under the com.apple.SpringBoard.plist" file 2, find com.apple.SpringBoard.plist inside is abou

OpenGL ES 05-texture ing our rectangle I have decided to introduce texture ing in advance because it may be easier to map a texture to an object instead of facing a multi-faceted (or 3D object ). In addition, it seems that this is the most desired knowledge for iPhone OpenGL ES programmers, so I will insist on Texture ing until now. I know that I have skipped many details supported by OpenGL, so that you can experiment and draw objects on the screen

Batch display of iPhone tableview data is the content to be introduced in this article, mainly about data display. The iPhone screen size is limited. If you need to display a large amount of data, you can first put the data into a table, first display 10, there are more options at the bottom of the table, click to view more and view the remaining parsed data. Bas

IPhone applications understand the Locate positioning technology, which is introduced in this article. In fact, it is very easy to develop software using the iphone's positioning system, next, let's take a look at the use of the iphone's positioning system. 1. Getting the User's Current Location Obtains the current user location. There are three methods to obtain the location: GPS, cell tower triangulation, and Wi-Fi Positioning Service (WPS ). GPS is

utoreleasepool * pool = [[NSAID utoreleasepool alloc] init]; 10 11 //... 12 int I = status; 13 [self defined mselecw.mainthread: @ selector (show_loading :) withObject: [NSNumber numberWithInt: I] waitUntil Done: NO]; 14 15 [view_loading removeFromSuperview]; 16 [window addSubview: tabcontroller_main.view]; 17 [pool release]; 18} //////////////////////////////////////// /////////////// Multi-thread implementation and thread synchronization using

Article Description: The IPhone proves Apple's ability to innovate. Where are the iPad2 cows? The screen is big, the aluminum crust is very hard and the electricity is long. Big, hard and enduring is really good, but please let me ask this girl who hasn't found her boyfriend, allow me to say: IPad2 's biggest feature is: cheap . All right, we're talking about features that the IPad generation has. However, iPad2 upgrade is not very, th

outs of each account. If you write down multiple accounts on a person's head, it will help you calculate the sum automatically. If you find someone to pay back the money in two years, you can clearly tell the other party that "You owe me 4527 yuan, 8 cents and 3 cents ". Or you can send them a URL from the app, and they will receive a very beautiful webpage. Of course, the above information tells them "You owe me money ". If they have an iPhone and

This site's article is originally written by Li huaming himi. The reposted article must be clearly stated: (Author: Sina Weibo: @ Li huaming himi) Reproduced from [Black Rice gamedev block] original link: http://www.himigame.com/himistudy/382.html Magic baby fans [mobile edition (iPhone/Android )] Statement: 1. All the images related to magic baby in this article are from the Internet. 2. This Article is made by my hobbies in my spare time. 3. All the

1: In iPhone memory management, when malloc is used to allocate memory on the heap, the corresponding free heap memory should be used instead of the release-related objects. The following code: @ Interface MemoryTestProjViewController: UIViewController { @ Public NSMutableArray * memoryArray; } @ End @ Interface MemoryTestProjItem: NSObject { @ Public Char * innerItem; } @ End During initialization, The innerItem pointer allocates memory on the hea

We can see mono on the iPhone on Mono's blog tonight. Recently, sun is still running Java for the iPhone. Apple is not interested in Sun Singleton. . Net has been first registered with mono. PADL software's Luke Howard sent some Mono of Miguel de Icaza's running on the iPhone: Some stats: # Hostinfomach kernel version: Darwin kernel version 9.0.0d1: Wed Oc

1. (SHARE) how to use a PC keyboard on an Apple Computer! 2. the best message is that iatkos4i is successfully installed on Ghost, and a6000c runs well on Lenovo desktop. 3. original non-plagiarized 10-27 update, (SHARE) Asus P5rd1-vm above how to install leopard 10.5.4 my success Summary If you do not buy a Mac, it is also feasible to install a Mac by yourself. Although it is a bit difficult, it is better for some domestic friends than there is no

Method One (this method is not recommended) 1. See if you can connect to the Itools,ifunbox, and so on software, if you are able to connect and access the file 2. Delete/var/mobile/library/preferences/com.apple.springboard.plist 3. Restart the iphone. Solve the problem. Method two, (recovery mode) 1. Turn off your iphone 2. Simultaneously hold down the switch machine key and the home key 3. When you

What is the screen bad point The LCD screen's bad point is also called a point absence, which refers to the LCD display Black-and-white and red, yellow, blue, the three primary colors displayed in the sub pixel point, each point is a sub-pixel. The LCD screen is most afraid of the bad points. In the event of a bad spot, a point on the display will always display the same color, regardless of the image displayed by the display. This "bad point" is not serviceable, and only the entire display can

Baidu Mobile Input Method iphone version from the initial to meet the basic input needs, to the present all-round emotional input experience, experienced more than 10 versions of the transformation. As the functionality and experience continues to rise, more and more users are enjoying it and have become the best input method on the iphone. For its e

Article Description: informal iphone excellent application design details. The most troubling thing about being a new interactive girl is how to solve the big paradox of "IPhone Native interface controls can't meet the growing functionality needs of the product." On the one hand, if the conservative use of the traditional iphone control, can not bring

times the file size on Android. The conclusion is clear that Apple does knowthe importance of optimize_coding and Huffman tables, and Google does not know. (Apple uses their own Huffman table algorithm, not like Libjpeg or Libjpeg-turbo, and it seems Apple does more work on compressing pictures)Finally, we decided not to use the JPEG compression algorithm provided by Android, and we compiled a native library based on the Libjpeg-turbo (Libjpeg-turbo also improved in performance). Now we can sav

Android Phone Restart method: 1, Millet Mobile phone Restart method: Press and hold "power button" + "Volume + key" Not put, about 5-10 seconds can restart the phone. 2, Huawei Mobile phone Long Press the power button, about 10 seconds or so, you can restart the phone. 3, ZTE Mobile phone restart method Long Press the power button, about 15 seconds or so, you can restart the phone. 4, Oppo mobile pho