IOS

Objective, object Use of KVC     1. KVC full name key valued coding key-value Encoding The reflection mechanism is in the running state. For any class, all attributes and methods of this class can be known. For any object, any method and attribute

IOS learning and ios development In the IOS 9 SDK, Apple abolished some of the AddressBookUI. framework Functions (whether the library has been abolished and needs to be verified). The specific system interfaces related to saving contacts are as

About anchorPoint and anchorpoint The anchorPoint attribute is CGPoint (x, y), and the value of x and y is proportional. Generally, the value ranges from 0 ~ 1. The default value is (0.5, 0.5), indicating the position of the layer in its own

In OC-how is the method used ?, Oc method usage Method: A method is a unique structure of Objective-C. It can only be declared, defined, and used in Objective-C. It cannot be declared, defined, or used in C.1. The class method starts with "+", and

Ios allows WKWebview to pop up the button shadow on the keyboard, ioswkwebview # Import @ Interface WKWebView (AccessoryHiding)@ Property (nonatomic, assign) BOOL hackishlyHidesInputAccessoryView;@ End     # Import "WKWebView + AccessoryHiding. h"#

IOS-use AFNetworking3.0 + (latest AFN) and afnetworking3.0afn0. Preparations for importing the framework • 1. Drag the AFNetworking3.0 + framework program into the project • 2. Or use Cocopod to import AFNetworking3.0 + • 3. import # import

IOS network data download and JSON parsing, and ios data json ParsingIntroduction to iOS network data download and JSON Parsing In this article, I will introduce how to use NSURLConnection to download data from the network, parse the downloaded JSON

[Code Note] scoring, supporting us and code note scoring I ,. 2. Engineering Drawing. 3. Code. RootViewController. m -(Void) viewDidLoad {[super viewDidLoad]; // Do any additional setup after loading the view. self. title = @ "rating,

Screen Adaptation size class1. Three Dimension types (size class) If the screen length and width are divided into three types by length (size class on the official website): compact, any (any), regular (regular ), there are nine types of

[IOS/translation] Cocoa Touch Layer The Cocoa Touch layer contains key libraries to build IOS applications. These libraries define the performance of applications. They provide basic space for applications and key technologies such as multitasking,

Take notes on ios development and take notes on ios development +-Symbol before the Method The method of the plus sign (+) is a class method, which can be called directly by class name. Its function is mainly to create an instance. It is equivalent

IOS Interview Questions and answers   1. WriteNSStringClass implementation+ (Id) initWithCString :( c ***** t char *) nullTerminatedCString encoding :( NSStringEncoding) encoding;+ (Id) stringWithCString: (c ***** t char *)

IOS Study Notes 38-MJExtensionI. MJExtension third-party framework During iOS development, we often need to convert Dictionary data (that is, JSON data) to Model data, such as Weibo data returned by network requests, if we manually create models and

Brief Introduction to implementation analysis and simple use of AFN (AFNetWorking 2.X) [conversion], afnafnetworking [Reprinted] Axc Note: if the version is AFNetWorking 2.6 3.0, You need to modify most objects. I. StatementPreviously, this person

Lazy loading and ios lazy loading Definition of lazy loading: The so-called lazy loading can be defined:Delayed loading, that is, loading when the object needs to be used. This is actually the so-called get Method for rewriting objects,When the

IOS CALayer view layer In iOS, there are a series of problems such as graphic conversion, animation effects, adding views, and so on. This knowledge is used when designing pages, designing images, and adding animations.Simply put, it is the layer of

Summary of iOS MVC-based project ReconstructionMVC in iOS and MVPCocoa According to the description on the official website, MVC in Cocoa is like this: Model Objects Encapsulate Data and Basic Behaviors View Objects Present Information to the

[IOS] development-dictionary conversion model and KVC, ioskvc Requirement 1: Convert the dictionary into the desired object. The attribute of the object is the dictionary key value. There are two disadvantages of directly using the key value to

PerformSelector withObject afterDelay does not run in the sub-thread call. performselector For example, this is a problem found recently when I modified a Data Synchronization module. The entire data synchronization task is placed in a background

IOS development-Do you actually use SDWebImage?SDWebImage is currently the most popular third-party image download framework, with a high usage rate. But will you actually use it? This article will analyze how to properly use SDWebImage through