ios programming for dummies

1. "Power-saving, smooth, high-quality application, fast response, good user experience ..." may be the apple system in the eyes of many users.2. The iphone user experience is still strong, as Apple continues to stick to dual-core in the era of CPU frequency, 4-core, 8-core.The above two points iOS is how to optimize, in the endurance, smoothness and response speed of the victory over Android, the answer is multithreaded runloop ...Runloop is the core

First, build the environment.It's really annoying that iOS programs have to be programmed on Mac OS X systems. This is not the intention to pit me such a poor person ...It took almost an afternoon to finally find the available Mac OS X 10.9 system, the VMware Patch () and the System Installation graphics tutorial (search it yourself).Then the installation of the bitter force ....Ii. A preliminary study of XcodeFinally run the Mac OS X system, the hear

Objective-C Programming for Android to iOS During work, I found that iOS development is also very interesting when chatting with colleagues who are working on iOS. So I want to learn iOS development. My colleagues recommended this book, which is Objective-C, because I have d

. Layer . Cornerradius = - self. View . Addsubview (RedBall) // elastic animations,IOS 7.0 later have this animation UIView. animatewithduration (2.0, delay: 0, usingspringwithdamping: 0.3 ,// elastic damping, the value range is 0-1, the closer to 0, the more elastic effect of animation; if set to 1, the animation will not have an elastic effectinitialspringvelocity: 0 , // The speed at which the view starts at the beginning of the animation

by the value, Instead, we give the value . when we actually execute the block, so for the number of referencesblock, when we pass the past, it needs the receiver to provide the corresponding parameters of the ability to execute, so we can do the merit of the Class A for the future events of Class B, even if we don't have the detailed arguments of these events . In a sense it would not be necessary to entrust the relationship between the two . the trust relationship is a Class B after an event,

know that our task is over.The code is as follows (since there is a photo class in the demo, the OC Code is affixed here):// 3Photo *photo = [[Photo alloc] initwithURL:url withCompletionBlock:^(UIImageNSError *_error) { if (_error) { error = _error; // 4}];[[PhotoManager sharedManager] addPhoto:photo];Task remindersWhen all of our tasks are manually notified, then we need to use a reminder to tell him (I've finished everything, and then I need to try where I can do it), and there a

Network Programming Application scenario in IOS development: JSON data acquisition, network data download.One: Request JSON data generally in the way of asynchronous request, if the use of synchronous request, it will cause the implementation of the iOS interface block, that is, the interface part in the process of requesting data must wait for the data to load c

sleepForTimeInterval:1]; NSLog(@"dispatch_async3"); }); Print result: 16:20:33. 967 gcdTest [45547: 11203] dispatch_async1 16:20:35. 967 gcdTest [45547: 11303] dispatch_async2 16:20:35. 967 gcdTest [45547: 11303] dispatch_barrier_async 16:20:40. 970 gcdTest [45547: 11303] dispatch_async3 Pay attention to the execution time. You can see the execution sequence as described above.4. dispatch_apply Execute a code snippet N times.Dispatch_apply (5, globalQ, ^ (size_t index ){// Execute 5 t

IOS Programming UINavigationController, ioscontroller jump IOS Programming UINavigationController The Settings application has multiple related screens of information: a list of settings (like Sounds), a detailed page for each setting, and a selection page for each detail. this type of interface is called a drill-down

. An application (application) is made up of one or more collaborative processes.The meaning of multithreading is that in an application, there are multiple execution parts that can be executed concurrently. Provides a coordination mechanism to prevent conflicts between processes and threads, and to allow resources to be shared between processes and threads on the other.2. iOS multithreaded Programming tech

Network Programming for iOS development-3. NSURLSessionDataTask implements file download (offline resumable download) and nsurlsession resumable download NSURLSessionDownloadTask is used to download large files without the need for offline resumable data transfer. For more information about NSURLSessionDownloadTask, read the previous article: Network Programming

In the previous article, "iOS starts from the zero-learning socket programming--http1.0 server," We have simply contacted the OC-built HTTP server. (address http://blog.csdn.net/abc649395594/article/details/45131373) This HTTP server has been improved to multi-threaded for user experience and robustness considerations. First, the Ansycsocket class is implemented in OC-based Runloop, Runloop implements as

ii. introduction of Asyncsocket1) What are the methods of socket programming in iOS? The-BSD socket BSD socket is a common network interface in UNIX systems that not only supports a variety of network types, but is also a communication mechanism between internal processes.　　The iOS system is essentially UNIX, so it can be used, but more complex. -cfsocket Cfsocke

Recently, because of the needs of the project, to develop an iOS project using the Swift language, a simple requirement is to invoke the remote WebService data. The problem arises, there are many examples of using OC to call WebService on the Internet, but almost no example of using Swift to call WebService, I have been searching for several hours, is not satisfied with my request, how to do, the project will be ruined? Swift and OC, what should I cho

Reactivecocoa is an implementation framework for responsive programming (FRP) in iOS, and its open source address is: https://github.com/ReactiveCocoa/ReactiveCocoa#; read several articles on the Internet, Feeling theory, but the code is still not understand, so I put it on GitHub document some of the use of the classic examples of implementation, the project can be directly moved in the past, with the prof

..._session =[Nsurlsession sessionwithconfiguration:configDelegate: Self delegatequeue:nil]; [Self fetchfeed]; } returnSelf ; } ////// @implementationBnrcoursesviewcontroller () //Delegation Method-(void) Urlsession: (Nsurlsession *) session Task: (Nsurlsessiontask *) Task Didreceivechallenge: (Nsurlauthenticationchallenge*) Challenge Completionhandler: (void(^) (Nsurlsessionauthchallengedisposition,nsurlcredential *)) Completionhandler {nsurlcredential*cred = [Nsurlcredenti

to the operation of different types of integers. When you need a fixed-length variable, use a int32_t, int64_t fixed-length type like this Do not write dead size when using malloc Use a formatted string that can fit two schemas at the same time Note Function and function pointers (type conversions and mutable parameters) Do not directly access the OBJECTIVE-C pointer (ISA) Using the built-in synchronization primitives (primitives) Do not hardcode the virtual memory p

" otherbuttontitles:nil];[ Alert show]; [Alert release];}} Code Description:The progress property of the Uiprogressview control is the 0.0~1.0 annoying range. 0.0 time at the beginning of the position, 1.0 is the progress to 100%. Shimen the main contribution, respect the work of the author, please do not reprint. If the article is helpful to you, you are welcome to donate to the author, support the Shimen, donate the amount at random, ^_^ I want to donate: Click Donate Cocos2d-x so

In general, this error is due to the fact that you have updated the version of Xcode, or if you have deleted the previous one and then re-installed the Xcode again, this problem will occur from time to time.The solution is simple, just go to the directory and delete something. Look at the following actions:1) Click "Go" in the Finder.2) I can't see anything, and I want you to hold down the option key in the lower-left position of your keyboard, you will get a resource library.Because the reposit

of the picture, point them separately, and then go to the relevant files on the hook. The next three pictures are the same operation.After the build, you can see the following file on the left column.Let's test how to configure the static text.First, drag a lable control onto the storyboard, and then name the lab.Let it relate to ViewController.h.Write the relevant international information in Localizable.string's Chinese and English documents respectively. The most thing to note here is the di