IOS override alloc compatibility issue
The alloc method is disabled in Swift, and when you instantiate Objective-C in Swift, you don't call the alloc method, you call the constructor method...
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Tag: objective-c
IOS Development: How to Make iOS Development Work – RunTime
January 24, 2024
by Kevin Rodriguez
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In the previous chapter, we took a look at some of the basic RunTime concepts and some of the little things that make up the...
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What does iOS do about 64-bit Pointers
January 24, 2024
by Andrew Sutton
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With the iPhone5S, apple has already switched to an arm 64-bit processor. Generally speaking, the number of bits of the processor is generally related to...
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Knowledge of sending Runtime messages
January 24, 2024
by Carly Phillips
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We know that when a message is sent to an object, the object uses its ISA pointer to find the class to which it belongs,...
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Krush iOS app Architecture
January 24, 2024
by Natalie Hale
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At Teehan+Lax, we have been working on the Krush project for several months now. Krush is a very interesting app from an iOS architecture perspective,...
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IOS Basic Principles (5) Runtime
January 24, 2024
by Alisha Srivastava
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Runtimeobjective-c is a very dynamic programming language, which is quite different from C, C++ and other languages. Objective-c dynamics is the interface base provided by...
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Behavior in iOS apps
January 24, 2024
by 白俊宏
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As developers, we strive to write clean and well-organized code. There are many patterns we can use for this purpose, and one of the best...
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GCD development in iOS (Part 2)
January 24, 2024
by Mr. Robert Padilla
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In the previous article, we got a general idea of what GCD is, and how to create queues and tasks, but the previous ideas are...
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Category (category) Extension
January 24, 2024
by Clive Elliott
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Objective-c provides tools that allow us to extend class definitions: categories, extensions, and protocols. Classes: Add new methods to a known class; Extension: notify the...
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IOS CrashSymbolicator – iOS 15 CrashSymbolicator
January 24, 2024
by Guy Jones-James
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Here we will focus on the use of symbolicatecrash and atos tools, as well as the new crashsymbolicatator. py for iOS15, which is compatible with...
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Learn bit operation, help develop high performance
January 24, 2024
by Keith Fletcher
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As long as one of them is 1, the result is 1.
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IOS development engineer employment salary analysis
January 24, 2024
by 郝淑華
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Engineers with less than 3 years of software development experience and about 1 year of iOS platform development experience are generally in the rookie stage,...
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Basic Principles of iOS (8) Memory Management (2)
January 24, 2024
by Scott Hughes
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Weak pointer We usually use __weak as a weak reference for a variable. Once released, the __weak variable is automatically set to nil__unsafe_unretained. The weak...
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IOS Basic Principles (5) Runtime
January 24, 2024
by James Klein
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If the message sending phase does not succeed, we will enter the dynamic method parsing phase ** first step ** We will look at objC...
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Effective Objective C 20:52 Effective Ways to Write Quality iOS and OS X Code
January 24, 2024
by Peter Gledhill
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The target has been reading some advanced iOS books and making simple notes to impress. Effective+Objective-C2.0 52 Effective Ways to Write High Quality iOS and...
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CoreText is used for text adaptation in iOS
January 24, 2024
by Abigail Baker
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So let's take a look at the renderings where you can specify the width and the height of the display to automatically increase with the...
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WWDC: Apple loves itself, does it love developers?
January 24, 2024
by Murray Wilkinson
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The 1984 Super Bowl AD, in which Apple portrayed itself as the renegades breaking big Brother's rule with a single hammer, was a huge success....
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Common iOS keywords static, const, extern, define
January 24, 2024
by Kathryn Collins
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It can be used to modify a constant variable or function and prolong its life cycle, the type of data being modified will be saved...
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Property variables, member variables, instance variables in iOS
January 24, 2024
by Molly Sellers
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What are attribute variables and member variables in ios? What is an instance variable? What's the connection between them? What is the specific method of...
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Writing high quality Objective-C code for iOS
January 24, 2024
by James Brown
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There are currently two official languages being promoted for iOS development: Objective-C and Swift. Today, we'll help you become more familiar with Objective-C and talk...
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Writing High Quality Objective-C code for iOS (6) — Block Column
January 23, 2024
by Madeline Brooks
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The topic of this article is "How blocks work and How they work" in iOS. A brief introduction to today's hero: Block. Block: A "lexical...
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Infrequently used keywords in iOS
January 23, 2024
by Anay Manda
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Swift two. Objective-C
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Implicit animation & Explicit animation learning
January 23, 2024
by William Gray
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CAAnimation implements the KVC protocol. Properties can be accessed using -setValue:forKey: and -valueForkey: methods. But CAAnimation, like NSDictionary, can set keys at will. So, it...
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Writing high quality Objective-C code for iOS
January 23, 2024
by Ross Brown-Anderson
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Select company - and project-related prefixes for the class names. To avoid conflicts caused by repeated references to third-party libraries, prefix them if necessary. Provide...
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RunLoop gets to the bottom of this
January 23, 2024
by 欒俊傑
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RunLoop is a very fundamental concept in iOS and OSX development and is behind many common technologies. Although most developers rarely use RunLoop directly, understanding...
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IOS 5 minute Integrated Hotfix (JSPatch)
January 23, 2024
by Nicola Ryan-Brooks
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3.5.2 A bug was found after the launch of gold mining. The iOS junior of our company accidentally changed part of the code before the...
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Autoreleasepool
January 23, 2024
by Taimur Chandra
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AutoreleasePool: Automatic release pool is an automatic release mechanism provided by OC. It has the feature of deferred release. When we create an object and...
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Why should programmers learn data structures?
January 23, 2024
by Arhaan Setty
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As software developers, when faced with new tasks and challenges, we often break them down into solutions and snippets of code that we are familiar...
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Clever use of iOS enumeration
January 23, 2024
by 李信宏
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Preface in a previous article briefly mentioned this problem, but their own writing is not detailed, and their in-depth understanding is not particularly much, in...
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Make UISearchBar whatever you want it to be
January 23, 2024
by Melissa Jensen-Evans
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Product requirements, as shown below, without triggering UISearchBar 1. The default prompt text is left. 2. Delete the default display of the button and replace...
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