IOS

I 've been busy with IOS projects recently. It's hard to take time out to summarize some of my experiences on iOS development. I'll just write down some things when I think of anything.   Even if the arc mechanism is used, the dealloc method must

1. [Super init] must be called in the init function, and [Super dealloc] must be called in the dealloc function. 2. Call the object generated by the function starting with "alloc", "new", "copy", "mutablecopy", which must be release 3. The object

If you want the app to pass the review, you must determine the network environment and handle alerts when there is no network. Apple's routine reachability describes how to obtain/detect the network status. To be appliedProgramTo use Reachability

The introduction of lock can refer to: http://blog.csdn.net/lifengzhong/article/details/7487505   View the attributes of the nsconditionlock class: Lock, unlock: Lock and unlock, is the required method. -(ID) initwithcondition :(

1,There is a compile source under build phases under target, and there are many files to be compiled below. You can see a compile flag. You can set the arc for some files. In this way, some frameworks cannot be used. Therefore, add-fno-objc-arc to

Recently, I am working on a native webview + HTML project. I feel this kind of attempt is quite good. It is especially suitable for content apps. Such as magazines and e-books. In fact, native is built on a framework, and the subject is still on the

ArticleDirectory       Reprint address: http://www.iloss.me /? P = 545 Protocols are divided into informal and formal protocols. Let's talk about informal protocols. Although the keyword of the informal protocol in obj-C is

Author: failingProgramMember-eight gods Memory Management plays a very important role in IOS program development. For a program with poor processing performance, crash occurs on the actual device.For output ports that are often used with retain in

Unable to create any keyboard shortcuts after the IOS 6.1.3 update on iPad 3 I had two keyboard shortcuts on my device before updating to iOS 6.1.3. after the update I wanted to create two more keyboard shortcuts but I am not able to do so as

ArticleDirectory Read the following tutorials to explore IOS Application Development Read the following documents to learn more about IOS application development. Introduction Creating IOS apps is both fun and rewarding. If

IOS: screen rotation and transform   The itouch, iPhone, and iPad settings support rotation.ProgramYou can make different la s based on different directions, and the experience will be better. How can we set the program to support rotation? We

Notes for supporting multiple versions and devices in IOS The IOS system has been available for six years since. It has been released once a year to two new devices, from iPhone E1, iPhone E2... iphone4s to the latest iPhone 5. The CPU

Scheduling Skill 1: ProgramDuring the crash, xcode often does not provide accurate stack information, but is positioned in the main method. This is a headache and misses, in fact, as long as xcode is installed with simple settings, it will be able

View code @ InterfaceBrandingfactory: nsobject{}+ (Brandingfactory *) factory;-(Uiview *) brandedview;-(Uibutton *) brandedmainbutton;-(Uitoolbar *) brandedtoolbar;@ End View code # Define Use_acme @ Implementation Brandingfactory+

View code @ InterfaceSingleton: nsobject{}+ (Singleton *) sharedinstance;-(Void) Operation;@ End View code # Import " Singleton. h " @ Implementation Singleton Static Singleton * sharedsingleton _ = nil;-( Void ) Operation{ // Do

1.InProdoutsFile. AppFile ----IsYesExecutiveLine (YingUseProgram) File; 2.Root objectRecordingUnder. PCHFile ----ItemTarget all filesHeaderFile; 3. In the classes file clip back decorated with delegate. h file ---- delegated

1. Search for font files on the Internet (the suffix is. TTF or. ODF) 2. Import the Library to the resouce of the project. 3. InProgramLoad a section in viewdidloadCode Nsarray * familynames = [uifont familynames];For (nsstring * familyname in

In iPhone development, there are many options for XML parsing. the ios sdk provides two class libraries: nsxmlparser and libxml2. There are also many third-party class libraries available, such as tbxml, touchxml, kissxml, tinyxml, and gdataxml.

1. Convert string to date Nsdateformatter * dateformat = [[nsdateformatter alloc] init]; // instantiate an nsdateformatter object using handler [dateformat setdateformat: @ "yyyy-mm-dd hh: mm: SS"]; // set the time format, which can be set to the

Http://blog.csdn.net/lifengzhong/article/details/7739496 The basic data type is value type, which is stored on the stack and allocated and recycled by the compiler. The programmer can use it immediately after it is declared. NSObject objects and