Objective-c Runtime object
The objc_object structure has only one isa of type ISA_T, which contains information about the class to which the object belongs. Isa_t isa union, which...
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Tag: objective-c
Zero-base iOS development learning Diary – Modal jump with view life cycle
December 23, 2023
by Kelly Hansen
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Zero-based iOS development, summarize their own learning process, and problems encountered in the learning process and solutions, to prevent their own forget, monitor their own...
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IOS CocoaPods star top 100 third-party library
December 23, 2023
by Roger Patel
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The knowledge set is organized by CocoaPods star top 100 third-party libraries. For details, see obtaining third-party libraries. The following tripartite library rankings will change...
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The nature of the OC object (part 2) — the ISA&Superclass pointer
December 23, 2023
by Nicola Gardner
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The nature of the OC object (top) : the nature of the OC object (middle) : the nature of the OC object (bottom) : the...
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IOS lock analysis: the use of various locks & source code analysis & read and write locks
December 23, 2023
by Linda Benson
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Mutex mutex has two features: mutual exclusion and synchronization. Mutual exclusion: When multiple threads are working on a task at the same time, one thread...
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IOS collation – About live streaming – Pull stream section
December 23, 2023
by Donald Coleman
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This is the 28th day of my participation in the August Wenwen Challenge. The August Wenwen Challenge is my column exploring the Underlying Principles of...
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OC Basic principles -App startup process (DYLD loading process)
December 23, 2023
by Zeeshan Halder
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I have summarized the previous articles into the OC Underlying Principles series. Application content is the content of objects, classes, and method calls (message sending)....
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IOS Basic Exploration – KVC basic principles
December 23, 2023
by Brett O'Connor
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This is the 18th day of my participation in the August Genwen Challenge. The details of the activity are as follows: 1. The pit and...
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Isa-basic Principles of iOS (Part 1)
December 23, 2023
by 徐柏翰
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Earlier we explored the nature of objects, how they are stored in memory, and the underlying implementation of 'ISA'. Today, we'll take a look at...
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Dyld (part 1)
December 23, 2023
by 白俊宏
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This is the beginning of a new chapter. Explore a process of application loading. After our app is installed on the phone, what does the...
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IOS UITableView and UICollectionView left and right linkage
December 23, 2023
by 王佳慧
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A while ago, received a demand, need to achieve the left side of the display category list, the right part of the page to achieve...
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IOS Infrastructure Analysis – Locking (3)
December 22, 2023
by Trevor Clark
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This is the 25th day of my participation in the sDataList Challenge. In the last article, we introduced the sDataList structure. Next, we will continue...
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iOS – RxSwift – Subject
December 22, 2023
by Neelofar Mahajan
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AsyncSubject Emits the last element (and only the last element) after the source Observable emits a completion event. If the source Observable emits none, only...
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AVAudioPlayer Plays local audio
December 22, 2023
by Gillian Patterson
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Hello, I am Two west, today mainly record AVAudioPlayer local play video, this control can play local audio, if you want to play online audio,...
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IOS Low-level Exploration — Locking
December 22, 2023
by Brent Carroll
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This is the 24th day of my participation in the August More Text Challenge. Introduction to locking When we use multi-threading, multiple threads may access...
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015- How classes are loaded (Middle)
December 22, 2023
by Amy Smith
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How to find the entry of class rW, RO, RWT operations through the most direct way: set breakpoint + write print code, dynamic debugging only...
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The nature of the NSObject object
December 22, 2023
by Murray Wilkinson
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If you need to link to other frameworks, use the -framework argument. For example, the -framework UIKit structure is the underlying implementation of NSObject; Thus,...
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IOS development one of the basics of Swift language
December 22, 2023
by Lisa Daniel
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IOS development many new people to iOS development is very confused, do not know where to start? By the end of this series, getting started...
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Memory management (PART 1)
December 22, 2023
by Craig Jensen-Middleton
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The rules are the same as MRC except that manual retain, release, and Autorelease are not required in ARC mode. The compiler inserts release and...
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IOS startup Optimization – LLVM compilation process & Clang plug-in development
December 22, 2023
by David Batchelar
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LLVM is a framework system for architecture compilers, written in C++, designed to optimize the compilation time of programs written in any programming language (comp)
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Implementation of Objective-C Block
December 22, 2023
by Dhanuk Guha
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This is the 23rd day of my participation in the August Text challenge. Today, we focus on the interview questions to see what the Block...
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IOS Cleanup – App Store launch process
December 22, 2023
by Dr. Nicholas Gonzalez
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This is the 30th day of my participation in The August Genwen Challenge. The details of the activity are as follow: Fortunately, after developing an...
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IOS componentization
December 22, 2023
by 謝飛
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This is the 26th day of my participation in the August More Text Challenge, and the details are as follows: iOS componentization use of August...
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Swizzling Black Magic Swizzling Black Magic Swizzling
December 22, 2023
by Samarth Sant
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Each class has its own Method list, namely methodList, methodList has different methods namely Method, each Method contains sel and IMP Method, Method exchange is...
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The basics of UIKit’s new features
December 22, 2023
by Jasmine Simmons
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In the first two articles, we covered some new features in Xcode 9 that make it easier to write "bugs ". So this time, let's...
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Use of Instruments
December 22, 2023
by John Wright
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Leaks detects memory Leaks. The red bars are the locations of memory Leaks. Click inside to see the stack and call the method Time Profile:...
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On the structure and loading time of series-classification
December 22, 2023
by 李冠宇
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From the previous analysis of the structure of a class, we know that the class is essentially a structure. Today we will look at the...
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GCD fence functions, semaphores, dispatch groups and Dispatch_Source
December 22, 2023
by Bradley Carroll
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This is the 24th day of my participation in the August More Text Challenge. The function health here is 123, 456 and up is printed...
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Zero-base iOS development Learning Diary – Features – Store local information
December 21, 2023
by Yakshit Saha
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Zero-based iOS development, summarize their own learning process, and problems encountered in the learning process and solutions, to prevent their own forget, monitor their own...
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Loading principle of OC Class of iOS (Middle)
December 21, 2023
by Christopher White
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The whole process of _objC_init ->map_images->_read_images is analyzed. Finally, the initialization of the class is located in realizeClassWithout
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