Class cache_t structure
From the previous article on exploring the principles of classes, we can see that the structure of a class is as follows: And since we...
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Category: ios
ReactNative error: Cycle inside FBReactNativeSpec
December 18, 2023
by 呂怡安
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Change Xcode Build System to: Legacy Build System add the following code to the Podfile file: then execute pod install
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IOS Low-level learning — iOS Multithreading
December 18, 2023
by Chloe Webb
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Related concepts of iOS multithreading, such as process, the difference and relationship between threads, the meaning and advantages and disadvantages of multithreading; The life cycle...
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IOS – Underlying Principle 08: Class & Class structure analysis
December 18, 2023
by Chloe Webb
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The main purpose of this article is to analyze the structure of classes & classes, and the whole article is about a class and some...
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The elements of the Flutter Framework
December 18, 2023
by Cynthia Rodgers
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This article is the third in a series of articles entitled "Overview of the Flutter Framework". The article analyzes the elements, including their classification, their...
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IOS – Underlying Principle 32: Startup optimization (1) Basic concepts
December 18, 2023
by Dhanuk Guha
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Virtual memory & Physical Memory In the early days, data was accessed directly through physical addresses. This approach had two problems: 1. Insufficient memory. 2.
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Ios-underlying principle 24: Five memory areas
December 18, 2023
by Kimberly Houston
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In iOS, memory is mainly divided into five areas: stack area, heap area, global area, constant area and code area. The Stack is a system...
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IOS wild pointer processing
December 18, 2023
by Rachel Barnes
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When dealing with crash, there are two types of issues that are tricky, one is the wild pointer that we'll discuss today, and the other...
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Mach-o file analysis
December 18, 2023
by Ashley Weaver
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MachO file Mach-O is short for Mach Object file format, which is the format of executable files on MAC and iOS. Is a file format...
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IOS Reverse 10: App Re-signature (1)
December 18, 2023
by Fiona Sanders-Freeman
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In iOS Reverse 09: App Signature, the Hash value of the original data is decrypted. In iOS Reverse 09: App Signature, the Hash value of...
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OC underlying principle 23-GCD analysis
December 18, 2023
by Lucas Shepherd
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Main queue analysis queues are divided into serial queues and parallel queues serial queues :dispatch_queue_t serial = dispatch_QUEUE_CREATE ("test", DISPATCH_QU
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IOS Underlying Principles 01: OC Object Principle Exploration (1)
December 18, 2023
by Leigh Smith
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To begin with, let's create a project, then create a new class Person, and then look at the results of the code below. We find...
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IOS – Underlying Principle 35: Componentization (I) solution
December 18, 2023
by Fiona Sanders-Freeman
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This paper mainly explains two kinds of componentization schemes. Componentization is actually a way to separate and layer modules and specify the communication mode between...
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IOS dynamic debugging protection
December 18, 2023
by Rebecca Davies-Grant
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Security attack and defense is a process of game. Only by knowing your enemy and knowing your friend can you win a hundred battles with...
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Ios-underlying principle 16: Dyld is associated with objC
December 18, 2023
by 黃怡安
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The main purpose of this article is to understand how dyld is associated with objc. In the previous article ios-Underlying Principles 15: Loading Process for...
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IOS Problem 1: The OC project is incompatible with the three party libraries imported to SWIFT
December 18, 2023
by Mark Mccoy
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Background The current project is OC development, and the tripartite library imported through Cocopods is in the form of a static library. A tripartite SDK...
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Xnu kernel debugging
December 18, 2023
by Yashvi Tella
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To support remote debugging, Apple provides the Kernel Debug Protocol (KDP), a UDP-based Protocol that allows the debugger to send commands to the Kernel and...
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IOS objc_msgSend Slow search process
December 18, 2023
by 何婉婷
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Start with a good study, not anxious not impatient. In the previous article, we mainly studied the message sending process of objc_msgSend, mainly in the...
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Core Data with CloudKit (2) — Synchronize your local database to your iCloud private database
December 18, 2023
by Simon Rose
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In this article, we'll look at one of the most common scenarios in Core Data with CloudKit applications -- synchronizing your local database to your...
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Ios-underlying principle 15: Dyld loading process
December 18, 2023
by Toby Peters-Newman
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The purpose of this article is to analyze the loading process of dyld. What else does the bottom layer do before the main function? Create...
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IOS low-level learning — Weak implementation principles and destruction process
December 18, 2023
by 鄧美琪
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Weak references are analyzed from many aspects, such as basic usage, implementation principle, initializing underlying principle and destroying underlying principle. The underlying implementation principle is...
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IOS – Underlying Principle 31: LLVM compilation process & Clang plug-in development
December 18, 2023
by Yasmin Sachar
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LLVMLLVM is a framework system of architecture compiler, written in C++, used to optimize the compile time (compile-time) and link time (Lin) of programs written...
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Do you really judge _objc_msgForward_stret
December 18, 2023
by 吳龍
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I happened to learn Method Swizzling in August, read about Aspects and JSPatch to do Method replacement processing, and noticed the protagonist of our introduction...
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IOS – Underlying Principle 32: Boot optimization (3) Binary rearrangement
December 18, 2023
by Adriana Montes
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In the previous two articles, some basic concepts and the idea of starting optimization were introduced in general. The following is to introduce an optimization...
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Optimized iOS graphics performance
December 18, 2023
by 孫佩珊
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As a product matures, we begin to focus on optimizing its performance. The optimization of graphics performance plays an important part in the iOS client....
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Have you really figured out the off-screen rendering of iOS rounded corners
December 18, 2023
by 孫中山
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1. How to set rounded corners to trigger off-screen rendering We often see rounded corners trigger off-screen rendering. But that's not accurate, because rounded corners...
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IOS Low-level exploration: Cache_T analysis
December 18, 2023
by Chirag Chaudhari
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This is the seventh day of my Engagement with the August Challenge. Check out the August Challenge for more details. In the previous article, we...
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Image usage, memory comparison, and best practices in iOS
December 18, 2023
by Vanya Ramanathan
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Our comparison focuses on memory usage. The contrasting formats are JPG and PNG, the two most widely used formats, which represent lossy and lossless compression...
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HASH and symmetric encryption
December 18, 2023
by Mr. Samuel Richardson
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To transform an arbitrary length of input into a fixed length of output using a HASH algorithm. That output is called a HASH value. This...
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IOS5 class structure optimization
December 18, 2023
by Sophie Ward-Best
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A, WWDC2020 the optimization of the runtime video watching address: https://developer.apple.com/videos/play/wwdc2020/10163/ (it is better to Safari
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