Factors affecting object memory
Introduction Through the previous exploration of alloc process, the call process of alloc method has been clear, but there is still a question about how...
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Tag: objective-c
[iOS development] UITextField/UITextView get input in real time
February 1, 2024
by Chelsea Willis
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//UITextField: [infoTextField addTarget:self Action :@selector(textFieldEditChanged:) forControlE
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Multithreading (a), GCD
February 1, 2024
by Daniel Ford
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Nsthreads, GCD, and NSOpration encapsulate PThreads. Synchronization: When a function call is made, the call does not return or continue until the result is received....
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The Path of iOS Masters — The nature of objects
February 1, 2024
by 鞠龍
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Of course, there are a lot of functions down here, too long to waste space. We found some interesting questions: Why does my object have...
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The path of iOS Masters – The Journey of Methods
February 1, 2024
by Dr. Kelly Bailey
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1. At the beginning of the OC method call, I prepared such a class LCHero in the project, with an object method throwSkill inherited to...
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IOS 10: Message Extension
February 1, 2024
by Michele Brock
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Message is a library that Apple opened up to developers in iOS 10. Although it is a new library, it is similar to the one...
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Share Extension is a new feature in iOS 8
February 1, 2024
by Nayantara Devan
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Description Create a new project Create a Share Extension Configure the primary application Configure the Share Extension Configure NSExtension Share Extension Logical Fill In The...
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Use Sourcetree and GitHub for multi-party collaboration on projects
February 1, 2024
by Dr. Damien Jones
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Learning is like rowing upstream; not to advance is to drop back. '| the original address In writing the project with others, we are all...
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Relationships between instance objects, class objects, and metaclases of NSObject
February 1, 2024
by 余佳蓉
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The following figure shows the relationship between instance objects, class objects, and metaclass, where the implementation arrow represents the parent class relationship and the dotted...
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IOS — SDWebImage loads WebP images
February 1, 2024
by Kartik Grewal
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So SDWebImageWebPCoder, just pod 'SDWebImageWebPCoder'. If there is no SDWebImage in the project, pod 'SDWebImage' is required.
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15, message delivery: fast search process
February 1, 2024
by Matthew Skinner
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The essence of calling methods in OC is message passing, which is done through the objc_msgSend function. In the objc_msgSend assembler process, a CacheLookup assembler...
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Objc_msgSend function assembler process
February 1, 2024
by Brittany Robinson
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Methods are invoked in OC, and at run time the objc_msgSend function is used for message passing to invoke object methods. The objc_msgSend function is...
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Chapter two OC program design
February 1, 2024
by Lisa Lopez
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You can only call the initialization method once an object is generated. Some classes can also generate objects using other methods without alloc, and some...
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This is enough for KVO
February 1, 2024
by Rebecca Short
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KVO, commonly known as KeyValueObserving, is an event notification mechanism provided by Apple. Allows an object to listen for changes to specific properties of another...
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【iOS】LLDB debugging skills
February 1, 2024
by Amy Broughan
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The LLDB debugger has long replaced GDB as the default debugger in Xcode projects. http://lldb.llvm.org/tutorial.html command operation method: must first breaking point - > then...
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Common Faults iOS background tasks are not used properly
February 1, 2024
by Ellie Taylor
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IOS provides the mechanism of background tasks. By using background tasks, the App can perform some necessary logical processing in a few seconds when the...
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IOS video playback interrupts background music playback
February 1, 2024
by Eric Kelly
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Mute other programs while playing audio, or play audio on top of other programs' audio. The AVAudioSession class is introduced by the AVFoundation framework. Every...
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Method Swizzling for iOS development is easy to understand
February 1, 2024
by Mark Banks
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If the product manager suddenly says, "Add statistics to all pages, that is, every time a user enters the page, they are counted." We can...
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UITableViewCell loads image optimization
January 31, 2024
by 賈淑貞
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Preface We usually use a lot of UITableView, so the optimization of the list is also very concerned. A lot of times, when we set...
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IOS componentized development -Pod mini version automatically updates scripts
January 31, 2024
by Anika Gill
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Componentized development using PODS in the iOS world often requires a series of manual operations to update the Pod component. In particular, some business-related Pod...
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IOS Multithreading NSThread
January 31, 2024
by 黃淑華
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- (void)start; - (void)start; The method simply adds threads to the pool of schedulable threads and waits for the CPU to schedule them for execution....
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Indigo K interview: iOS subtitle group SwiftGG has more to do
January 31, 2024
by Julie Paton
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This is DevLink's series of interviews with Indigo K, RxSwift lecturer at iDev's Apple Developer Conference. At the upcoming iDev conference, he will talk about...
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NSOperationQueue for iOS multithreading
January 31, 2024
by Christine Porter
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When you think of iOS multithreading, most people will immediately think of GCD(Grand Central Dispatch) because GCD is easy to use and the code logic...
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Vision image recognition framework for Swift
January 31, 2024
by Julia Stephenson
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In 2017, Apple greatly launched a new model iPhone8 and iPhone8Plus, which is not the key, the key is that a value of 9000RMB iPhoneX,...
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Why is MetaClass in Objective-C?
January 31, 2024
by Seher Andra
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This article started when an interviewer asked me why Class and MetaClass are in Objective-C. Is it ok to remove it? At that time, I...
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Writing high quality Objective-C code in iOS (5) — Memory management mechanism
January 31, 2024
by Donald Coleman
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This article is about "memory management mechanisms" in iOS. Prior to iOS 4, all iOS developers had to manually manage memory, that is, the allocation...
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What’s really going on with the underlying structure of iOS (4)
January 31, 2024
by Lisa Daniel
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In the preface, we mainly explore the nature of the object and the relationship between the object and the class. In this chapter, we mainly...
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[iOS issue]- Error: Multiple Commands produce
January 31, 2024
by Gokul Bal
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There are two solutions. One is not to use the New Build System. Share Project/Workspace Settings build system (Defau...
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Writing high-quality Objective-C code for iOS (part 2) — Object oriented
January 31, 2024
by Dr. Carol Jones
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This article will examine how to improve OC code quality from an object-oriented perspective. Properties (@Property) are a feature of OC. @property: The compiler automatically...
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What is the essence of iOS underlying method and method call process (5)
January 31, 2024
by Megan Miles
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Preface imperceptibly, began to turn to the method by the class, for the method, it can be said that we usually use the most frequency,...
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