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Tag: cocoa

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Chapter 15 Message sending mode

January 22, 2024
by Anita Nelson
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Applications and Running loops A running loop application receives messages about events such as mouse clicks from the operating system and forwards them to the...
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Chapter 16 structure of application

January 22, 2024
by 沈怡安
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Application bundles Construction of application bundles Cocoa applications store executable files, or the necessary resource formats, in a delegate structure called application bundles, application wrappers,...
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IOS Debug and Release modes

January 22, 2024
by Mark Mccoy
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In the development process, we often need to use NSLog output some information, and even some development process, must view the output in the console,...
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ios

KVC/KVO summary

January 21, 2024
by Shamik Gaba
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CurrentBalance/owner/the transactions are now properties. The owner property is an object, which has a one-to-one relationship with BankAccount. The change of the property in the...
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ios

Swift Any, AnyObject, and AnyClass

January 13, 2024
by Jill Singh
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AnyClass: represents the metatype of AnyClass. The type of any class implicitly obeys this protocol. AnyObject. The Type. If you have a Student class, Student.Type...
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ios

OC generics are simple to use

January 7, 2024
by Michael Hart
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Objective-c has supported the use of Generics since Xcode 7. Generics do not specify the type, but determine the type at the time of use....
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ios

Ios – SQLite database

January 5, 2024
by Phillip Carter
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Concept 1.SQLite is a lightweight relational database, originally intended for embedded systems, that uses very few resources. In iOS, just add the libsqlite3.0 dependency and...
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ios

How to create an iOS project

January 4, 2024
by 葛雅琪
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Have time to sort out the basics. 1. Create a project code repository on Github, GitLab or code Cloud. Note that the.gitignore template is set...
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ios

Introduction of Tagged Pointer

January 4, 2024
by Nina Butcher
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NSNumber *num = @(20); I only need to store 20. In a normal technical scheme, on a 64-bit CPU, you would first create an NSNumber...
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ios

IOS tips Image related

January 4, 2024
by Susan Wang
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Photo album pictures selector https://github.com/banchichen/TZImagePickerController YYImage SDWebImage http://blog.csdn.n instead
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ios

Basic use of iOS agents

January 3, 2024
by Michael O'Sullivan-Atkinson
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Application 1: Data passing between classes Lower-level -> upper-level data passing uses proxies to avoid the problem of interdependencies between controllers (importing each other's headers)....
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ios

IOS Timer Task

January 1, 2024
by Hazel Thakur
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There are three methods: CADisplayLink, NSTimer, and GCD CADisplayLink features: The screen is refreshed once, and the specified method is repeatedly called. CADisplayLink is a...
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ios

IOS – the runtime application

January 1, 2024
by Luis Bishop
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The Runtime provides a set of methods to retrieve information about a class, including a property list, a method list, a member variable list, and...
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ios

Runloop

December 31, 2023
by 刁冠宇
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Runloop is a basic component that is tied to threads and is behind many of the thread-related functionality. Although we rarely use Runloop directly in...
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ios

IOS agreement Protocol

December 29, 2023
by John Davis
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A Protocol is similar to an interface of a class, except that it has no parent class and cannot define instance variables. Only declared, not...
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ios

IOS array traversal

December 28, 2023
by Denise Simmons
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For in traversal is very fast for an array with a large number of objects in the collection. But a small traversal is not as...
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ios

IOS multithreaded -NSOperation

December 27, 2023
by Norman Chapman
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NSOperation and NSOperationQueue are a set of multi-threaded solutions provided by Apple. They are based on a higher level of ENCAPSULATION of GCD and are...
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ios

Ios tips String correlation

December 21, 2023
by Mark Mccoy
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Long press copy to determine whether String contains a certain String take a single character String reverse to determine whether the String is empty add...
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ios

Runtime – Associated object

December 20, 2023
by Benjamin Begum-Clark
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Scenario: A system class is needed, but the system class cannot meet the requirements. You need to add an extra property. The general solution is...
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