Runtime is a collection of low-level C language apis
Refer to the article: https://www.jianshu.com/p/3e050ec3b759
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Tag: objective-c
App startup speed optimization and monitoring
December 28, 2023
by Aaryahi Babu
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Generally, the startup of App can be divided into cold startup and hot startup - cold startup, when the process of App is not in...
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Description of sending and forwarding iOS messages
December 28, 2023
by Samiha Gokhale
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Objective-c is a dynamic language that takes a lot of the stuff that static languages do at compile time and link time and puts it...
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IOS Advanced Series – Library (middle) dynamic library exploration
December 28, 2023
by Shannon Bradley
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The static library article has already stated that static libraries are collections of.o files (this article directly demonstrates that converting.o files directly to static libraries...
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IOS thoughtful article | macro definition
December 28, 2023
by 沈怡安
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Macros are a name for batch processing, which simply means replacing certain text according to defined rules. The replacement process is at compile time, so...
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Simple insight (1) : First understanding
December 28, 2023
by 沈怡安
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Objective-c is a dynamic runtime language that allows many operations to be deferred until the program is running. The dynamics of OC is supported and...
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An in-depth analysis of the Class structure
December 28, 2023
by Aarav Chaudhuri
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Runtime Principles (1) -- An in-depth understanding of ISA (2) -- an in-depth analysis of the Class structure of the Runtime principles (3) -- OC...
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Weak Usage principle
December 27, 2023
by Melissa Mitchell
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Object TrunTime --Weak2, iOS low-level parsing weak implementation principle 3, Objective-Cruntime mechanism (7) This article will talk about the use of weak from the following...
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Runtime Principle Exploration (I) — An in-depth understanding of ISA (Apple isa optimization)
December 27, 2023
by 孫飛
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Runtime Principles (1) -- An in-depth understanding of ISA (2) -- an in-depth analysis of the Class structure of the Runtime principles (3) -- OC...
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Runtime principle exploration (4) — To investigate the bottom message mechanism
December 27, 2023
by 周琬婷
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Runtime Principles (1) -- An in-depth understanding of ISA (2) -- an in-depth analysis of the Class structure of the Runtime principles (3) -- OC...
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Class and instance data structures in Objective-C
December 27, 2023
by Tiya Wali
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You can see that the object contains the value of the specific instance variable 0x0000000400000006. 0 x00000006 x00000004 and 0. So what is 0x001D800100008299? Object...
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IOS 13 for ING…
December 27, 2023
by Jessica Daniels
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Naked use of the content of this article to do the so-called original, trouble points face. This should be the need for weibo official adaptation,...
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Use of objective-C fast message forwarding mechanism in projects
December 27, 2023
by 鄧志豪
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As you can see from the figure above, these four methods are called in turn when an object cannot respond to a method. In daily...
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Latest Category loading
December 27, 2023
by Mr. Ashley Tomlinson
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Category_t is the underlying structure of a Category, from which it is easy to find that the Category stores custom method attributes of class objects,...
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IOS Basic Exploration – Multi-threading principles
December 27, 2023
by Derek Armstrong
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This is the 21st day of my participation in the August More Text Challenge. Thread and Process 1.1 Definition of Thread and Process 1.2 Relation...
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IOS runtime Native code injection via DyLib (dynamic debugging)
December 27, 2023
by 嶽靜宜
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When we debug React Native or Weex programs, we can implement dynamic code injection and hot update debugging with the help of dynamic execution capability...
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Ios-block circular reference
December 27, 2023
by 楊佳慧
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Circular references occur when two objects, A and B, strongly reference each other. When A is released, B must be released, and WHEN B is...
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Zero basic iOS development learning Diary – Controller -UITableViewController
December 27, 2023
by Tushar Sunder
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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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ObjC Basic Exploration – Class/object composition structure (A) class compilation results analysis
December 27, 2023
by Caleb Christiansen
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Introduction We use objects every day, but do you know what objects look like underneath? Do you know what the parts of an object are?...
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OC- Underlying Principle -23: Principle of multi-threading
December 27, 2023
by Keith Fletcher
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A process is a container for threads that perform tasks. In iOS, it is single-process development. A process is an APP, and processes are independent...
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How does serial-block work
December 27, 2023
by Janice Walker
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Today we are going to talk about how blocks work. Some things may be a little hard to understand, but I think it's important to...
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IOS Advanced Series – Libraries (part 2) Dynamic library and static library project applications
December 27, 2023
by 丁怡安
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In front of the article about static library and dynamic library, the content is to prepare for this article, here we talk about the actual...
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[iOS features]- Get navigation bar, status bar, tabBar height, toolBar height
December 27, 2023
by Harriet Thompson-Hughes
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// CGFloat statusHeight = [[UIApplication sharedApplication] statusBarFrame].size. Height; ` `
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[iOS features]- UINavigationController– Hide the bottom line
December 26, 2023
by Kahurangi Gee
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Method 1 (single page Settings) If you don't want to affect the navigation transparency of other pages, viewWillDisappear sets it to nil: Method 2(global Settings)...
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Underlying principle of iOS: weak implementation principle
December 26, 2023
by Billy Wright-Brown
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The method's two parameters are location and newObj. As you can see from the above code, the objc_initWeak method is just an entry point to...
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IOS packaging script
December 26, 2023
by 成雅慧
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If [! -d./ipaPackage]; then mkdir -p ipaPackage; Fi # Project absolute path project_Path =$(CD 'dirname $0'
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Swift vs. Objective-C: Which language should you choose for your next iOS mobile app?
December 26, 2023
by Kartik Grewal
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In 2014, Apple introduced a new, simpler way to build its iOS app, Swift. In 2020, however, IT managers and Ctos still struggle to choose...
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Build @synchronized
December 26, 2023
by Aaryahi Keer
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The last article covered thread safety, and in this latest installment of Let's Build, I'll explore how to implement @synchronized in Objective-C. This article is...
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Objective-c: Trick! Complete the default implementation of Protocol in disguise | Technical Review
December 26, 2023
by Mr. Vincent Foster
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In an interview, when discussing the features of Swift with the interviewer, we talked about the Protocol of Swift. The Protocol in Swift can be...
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IOS Basic Analysis – Block (1)
December 26, 2023
by Patricia Randolph
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There are three types of blocks in iOS: NSGlobalBlock: A global block is a global area; External variables are not used inside blocks
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