IOS

IOS lib (. a) Library conflict solution, ios. When introducing third-party lib (. a) Library is often caused by the introduction of the same open source code as your existing project in the third-party lib library. o conflict. ASIHttp occurred

Gestures in IOS1. Click UITapGestureRecognizer * tap = [[delealloc] initWithTarget: self action: @ selector (click)]; // set the number of times to be clicked [tap setNumberOfTapsRequired: 1]; // set the number of fingers for the current event to be

IOS multithreading summary, ios Multithreading1. Do not open too many threads at the same time (1 ~ 3 threads, no more than 5) 2. thread Concept 1> main thread: UI thread, display and refresh UI interface, process UI control events 2> sub-thread:

FMDB for iOS development and fmdb for ios developmentIOSDevelopment DatabaseFMDB　　1.Introduction Purpose: If you need to save a large amount of complex data, use a database, such as a pass test item. Common databases: (1) Microsoft SQL Server 2000/20

Categories and extensions of iOS developmentCategory: In ios project development, you can use a category to add a new method to an existing class without creating a subclass. By using categories, we can dynamically add new methods to existing

Delegate between two viewcontrollers in iOSThe second interface transmits values to the first InterfaceSecond Interface   // Configure the protocol on the Second Interface @ Protocol ChuanZhiDelegate -(Void) chuanzhid; @ End @ Interface

(GO) IOS study notes how to obtain the system information of the IOS program Home> program development> mobile development> IOS> body iOS: gets the phone model, system version, software name, software version-Comments: vipa1888 favorites I want to

View iOS Crash logs and ioscrashlogs When an application crashes on the device, iOS records these error logs and creates a Crash Report ). The crash report contains the iOS version, date, exception type, stack trace, and other information.① View

IOS: how to implement a long-pressed Drag Control, ios Drag Control You can use the proxy method of UICollectionView to directly implement the drag of controls. However, some developers did not use UICollectionView to create a nine-phase grid at the

One of IOS design patterns (MVC and Singleton)IOS design patterns-you may have heard of this term, but do you really understand what it means? Although most developers may think that design patterns are very important, there are not many articles on

IOS/Swift pause and resume layer animation, iosswift Code for starting layer Animation: // MySuperLayer parent layer CFTimeInterval pausedTime = [self. mySuperLayer timeOffset]; if (pausedTime> 0) // you can use {self. mySuperLayer. speed = 1.0;

Sandbox mechanism of IOS, iossandbox Every App in IOS has a separate closed folder called sandbox, and Apple requires that no App can access the sandbox of other apps. Sandbox directory FOUNDATION_EXPORT NSString * NSHomeDirectory (void ); Or

UIImagePickerController, SandboxUIImagePickerController1. + (BOOL) isSourceTypeAvailable :( UIImagePickerControllerSourceType) sourceType; check whether the specified source is available on the device. // Check whether the photo source is

IOS programming-Network Monitoring   In network applications, You need to monitor the network status of your devices in real time for two purposes: (1) let users know their network status and prevent misunderstandings (for example, the application

Dynamically draw curves on iOS A function needs to be completed recently, that is, to dynamically draw a curve on the screen. This curve can be used to describe the changes of data within a certain period of time. This is probably the following

Splicing and parsing json and sbjsonjson in ios 1. parse json in iosUse the open-source json package. Project address:Http://stig.github.com/json-framework/NSData * responseData = [respones responseData];NSString * strResponser = [[NSString alloc]

IOS development-thread security for multi-threaded Development A resource may be shared by multiple threads, that is, multiple threads may access the same resource, for example, multiple threads access the same object, the same variable, the same

IOS version information includes 6, 6 plus Import # import /*** IPhone device number **/ + (NSString *) iPhoneVersion { NSString * iPhoneVersion = nil; Size_t size; Sysctlbyname (hw. machine, NULL, & size, NULL, 0 ); Char * machine = (char *)

[IOS] Implementation of iOS message push mechanism and ios message push mechanism The working mechanism of iOS message push can be summarized as follows:   Provider refers to the Push server of an iPhone software. APNS is the abbreviation of Apple

IOS development-bottom layer-Class explanation, ios bottom layer-class explanation Objective-c is iOS's development language. its true face is that it is not a real object-oriented language, and abstract understanding is just about it. In fact, it