Hand in hand with you, optimize a smooth scrolling TableView
When reading news every day, I will feel that the app of news is still very good. When the Cell of TableView scrolls, it will...
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Tag: objective-c
[iOS Low-level lab] Assignment and release of associated objects
December 18, 2023
by Tara Ramirez
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Adding associated objects to categories is common, but do you really know anything about associated objects? Do you know how it's set up and released?
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KVO for iOS (3) – Custom KVO
December 18, 2023
by Maria Harvey
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In the previous two posts, we have introduced the operation of 'KVO', and the underlying logic of 'KVO' is implemented by dynamically subclassing and overriding...
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Exploring the underlying principles of iOS: GCD functions and queues
December 18, 2023
by James Brown
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The Grand Central Dispatch (GCD) Dispatch queue is a powerful tool for performing tasks. Scheduling queues allow you to execute arbitrary blocks of code asynchronously...
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Exploring the underlying principles of iOS multithreading | more challenging in August
December 18, 2023
by Christopher Marsh
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With the more and more complex business logic in the actual development, more and more heavy tasks need to be completed, the application of multithreading...
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[iOS Low-level lab] Dynamic resolution and message forwarding
December 18, 2023
by Lori May
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In the previous article we explored some of the underlying principles surrounding objc_msgSend. We find that in the process of slow lookup there is such...
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IOS Low-level Exploration – Byte alignment analysis in Memory | More challenging in August
December 18, 2023
by Anita Nelson
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The first step in the alloc process should be alloc placement. Is this actually the case? Let's verify: let's put a breakpoint on alloc and...
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Exploration of iOS underlying principles of sorcerer KVC
December 18, 2023
by Aniruddh Sule
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Key-value encoding is a mechanism enabled by the 'NSKeyValueCoding' informal protocol that an object uses to provide indirect access to its properties. When an object...
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IOS Low-level Exploration — Cache analysis
December 18, 2023
by Tiffany Blake
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This is the 5th day of the August Challenge, and we can also get the Cache by memory translation. Isa and
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Exploring the underlying principles of iOS — KVO Principles | more challenging in August
December 18, 2023
by Ms. Jennifer Byrne
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Key-value observation is a mechanism that allows an object to be notified when a specified property of another object changes. You can look at properties,...
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OC Object Nature & noPointerIsa | August is more challenging
December 17, 2023
by 康中山
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Clang is a LLVM-based C/C++/OC compiler written by Apple. Using this command, you can compile main.m into a main. CPP file
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IOS low-level exploration – class principle analysis – on
December 17, 2023
by 楊俊宏
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This is the third day of my participation in the August Changwen Challenge. For details, see: August Changwen Challenge I. The principle analysis of the...
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Exploration of the underlying principles of iOS rewrite KVO | August more text challenges
December 17, 2023
by Alexandra Owens
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In the previous article, we explored and summarized the overall process of KVO. In general, it is relatively simple. So today, we will follow the...
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IOS bottom exploration – class principle analysis – next
December 17, 2023
by Bradley Stanley
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This is the fourth day of the August Challenge. This is the fourth day of the August Challenge. This is the fourth day of the...
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Exploration of iOS Underlying KVO(ii) — Analysis of KVO principle
December 17, 2023
by Tanya Krishnamurthy
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This is my fifth day of the August Challenge. In my last blog post, I have introduced the operation of KVO. Now I want to...
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Practice, evaluation and thinking of Qunar SwiftUI
December 17, 2023
by 袁俊傑
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This article aims to familiarize you with SwiftUI and provide practical data and features for clients to refer to when selecting technologies. It also hopes...
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Analysis of iOS Class Loading Process (part 1)
December 17, 2023
by Kaitlyn Bowden-Larsen
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In the previous article, we have analyzed the application loading process, which we are familiar with. We have clearly seen that the dyld library function...
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Custom KVO, automatic release, listening for multiple properties
December 17, 2023
by Ellen Christensen
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Custom KVO, support multi-attribute listening, support automatic release. System KVO needs to write a lot of code, it needs to be manually released, and we...
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[iOS development] Block
December 17, 2023
by Jeremy Acevedo
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@[toc] Block Outline Specification What are Blocks? In a nutshell, anonymous functions with automatic variables (local variables) do what their names imply: Block has no...
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IOS KVC and KVO detailed explanation
December 17, 2023
by Michelle Ramos
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And apple has a special implementation for some container classes like NSArray or NSSet, KVC. If KVC wants to set values, then we need the...
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IOS low-level exploration and the like (4): class AssociatedObject
December 17, 2023
by Devansh Subramaniam
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In my previous posts, I focused on the low-level exploration of class loading, including classification loading, so this time I will look at class extensions...
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[iOS development] Event handling and responder chain
December 17, 2023
by Aniruddh Sule
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The UIKit framework provides a set of classes to set up and manage
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Fundamentals of iOS (18)– Interview questions
December 17, 2023
by 羅雅萍
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Dealloc 2, _objc_rootDealloc 3, rootDealloc 4, object_Dispose 1, dealloc 2, _objc_rootDealloc 3, rootDealloc 4, Object_Dispose
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IOS interview Tips for 2018
December 17, 2023
by Kenneth Smith
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After interviews with several companies, I finally came to iQiyi (Shanghai), where I worked in a field that I am very interested in. To get...
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OC underlying principle 10 application of load dyLD
December 17, 2023
by Hazel Sanghvi
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What is DYLD? What is the difference between DYLD and static library? What is the difference between DYLD and static library
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IOS interview parsing – understanding of depth copy
December 17, 2023
by 鄧美琪
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This interview is about understanding the depth of copy. This article will start with the difference between deep and shallow copying, and then explain the...
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What is App launch Dyld doing
December 17, 2023
by 孫佩珊
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Here is an analysis of the entire process of an App from clicking the icon to displaying the home page. Perform the AppDelegate proxy methods...
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OC Underlying principle 8 objc_msgSend (message) slow lookup, message dynamic protocol
December 17, 2023
by 丁雅筑
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What is the purpose of this chapter The process of slow lookup of source messages the dynamic protocol of messages, instance methods, and class methods...
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Several locks commonly used in ios
December 17, 2023
by Cheryl Flores
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The introduction of asynchronous and multithreaded locks to improve program performance means that thread safety has become a barrier to multithreading, hence the emergence of...
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What have I learned from writing tech blogs? – J_Knight_
December 17, 2023
by 尚慧君
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My name is J_Knight_, and those of you who know me well know that I'm a non-trained iOS developer who's been working for just over...
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