The GCD timer
SWIFT {code... } Objective-C {code... } There are two things to note: stopping the timer in this way can be reused, and stopping the timer...
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Tag: objective-c
Objective – c primer
December 14, 2023
by Christina Webb-Murphy
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Objective-Objective-C is a strict superset of C -- any C program can go straight through the Objective-C compiler without modification, and it's perfectly legal to...
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IOS interview fragments – demonic sword spectrum
December 14, 2023
by Fiona Atkinson
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1. Serial queue, synchronous operation, no new thread is created, operation is executed sequentially; Serial queue, asynchronous operation, will create a new thread, the operation...
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Take a little video on iOS
December 14, 2023
by Alexis Thompson
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Thinking step 1:1 AVCaptureSession, 1 piece of AVCaptureVideoPreviewLayer [considered compatible replacement into AVPreView] step 2: video recording to video & amp; Audio, the corresponding AVCaptureDeviceInput,...
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The iOS? Or personal limitations?
December 14, 2023
by Francisco Martin
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In my spare time, I also occasionally look at the chat information in the QQ communication group. Recently, I found that many IOSers in the...
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Fix the CocoaPods command pod install Installing packages on github.com is slow or failing
December 14, 2023
by Shayak Krishnan
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CocoaPods performing pod install installs packages on github.com, but github.com is very unstable. One solution is to use scripts to convert resources from github.com to...
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What is the basic language of iOS development
December 14, 2023
by Christina Gutierrez
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The language used for iOS development is Objective-C (also known as Object-C), which is based on C++. The standard language for iOS development is Objective-C....
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Teach you to write a command line tool that can find all the interface names in the.m file
December 14, 2023
by Ivana Saha
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After doing all the work in.m, I realized that copying all the interfaces from.m to.h is a bit of a hassle. So I decided to...
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IOS is written before the custom camera
December 14, 2023
by Vanessa Johnson
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The problem is that not all photo-taking UIImagePickerControllers work, for the following reasons: 1. 2. If the product is not precise, how can we experience...
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[open source]iOS segment subclass APP: Xiangle funny – share funny jokes/videos/pictures
December 14, 2023
by Krystal Mason-Duncan
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Xiangle-IOS project was originally intended to start a business, but it was on the App Store for several months, and the downloads were very few....
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The precedence (dependency) relationship in which iOS handles multiple network requests
December 14, 2023
by William Mendoza
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In iOS development, we often encounter the problem of multiple network requests. Sometimes, we need to request another network after the end of a network...
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What is passed by the iOS parameter?
December 14, 2023
by Richard Mcclain
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Do you have the same confusion? When I pass an object to a function, does the function have a value? Is it the original object,...
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AFNetworking request XML
December 14, 2023
by Susan Jones
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The HTTP protocol is the most common way for servers to communicate data with clients. In general, the data format is JSON, but in some...
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Basic iOS interview questions
December 14, 2023
by Kashvi Bhasin
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Categories, extensions, proxies, notifications, KVC, KVO, attributes Keyword 1, Categories *1, What is the role of Categories? Declare private methods to decompose large class files...
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IOS compilation and run error summary
December 14, 2023
by Ellen Christensen
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Title: The request to open "bundleID" failed. Description: The Reqeust denied by Service Delegate (SBMainWorkspace)
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Start optimizing binary rearrangement – action
December 14, 2023
by Keya Bahri
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23. If so, remove the -fsanitize-coverage=func,trace-pc-guard configuration. Delete app, clear Xcode cache; Xcode menu bar > Product > Profile (Command +I), wait for Running to...
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Objective-C study notes
December 14, 2023
by Kirk Martin
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Init must first call the parent init method, and then assign the method's return value to slef2. Init may fail to initialize the object. If...
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How did iOS engineers see the light?
December 14, 2023
by Gabriela Miller
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Talk about the market? Why do people always care about other people's opinions and ignore their own original intentions? The iOS development market isn't great,...
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IOS localization advanced tutorial
December 13, 2023
by Jake Pearce
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XIB and Storyboard are two different types of UI tools that allow us to get rid of the trouble of code layout. Their localization can...
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Foundation for iOS development
December 13, 2023
by Jose Aguilar
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{code... } one, the Basic content of 1, Numbers, Data, and Basic Values {code... } 2, Strings and Text {... } 3, Collections {Code... }...
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Paintinglite — Sqlite3 SDK Specially Designed For iOS
December 13, 2023
by Ms. Brenda Finch
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Paintinglite is an excellent and fast Sqlite3 database framework. Paintinglite has good encapsulation of data, fast data insertion characteristics, and can still show good resource...
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Objective-C data storage ramblings
December 13, 2023
by Peter Gledhill
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NSKeyedArchiver: Archive data in the sandbox; NSUserDefaults: Save Preferences data in the Library/Preferences directory of the sandbox (essentially plist); Write: permanently stored on disk; Use...
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React-Native gets the current network state of the device NetInfo
December 13, 2023
by 尹哲瑋
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The NetInfo module can obtain the current network status of the device, which can be subscribed and obtained once. Previously integrated in React - Native,...
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Introduction to SWIFT
December 13, 2023
by 李龍
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This tutorial is a summary of the iOS /Swift knowledge for programmers who use Objictive C programming and need to understand iOS-based iPhone and iPad...
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Runtime (2) : data structure
December 13, 2023
by Scott Faulkner
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Objc_object Objective-C is based on C/C++ data structure -- structure implementation. All objects we normally use are of type ID, which corresponds to the Runtime...
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IOS native floating window debugger
December 13, 2023
by Dr. Lawrence O'Brien
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What I wrote is not a translation but a restatement of this function with my own understanding, which is different from the original content. If...
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Objective-c core knowledge
December 13, 2023
by 沈怡安
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As for Objective-C programming language, its particularity has been well known to programmers with the popularity of iOS. It is an ancient language, and its...
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LLVM & Clang, the underlying principles of iOS
December 13, 2023
by 劉懿
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Preface Today, we will have a simple understanding and analysis of the compiler architecture system LLVM. After understanding the compilation process of LLVM, we will...
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OC basic principle exploration – source code analysis method
December 13, 2023
by Robert Taylor
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To explore the underlying principles of iOS there are generally three means to achieve real machine debugging symbol breakpoint directly with process analysis by holding...
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OC Class Principle – The nature of objects
December 13, 2023
by Nicola Frost
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Before we get to the nature of objects, let's start with a bit of code as usual. Struct1 takes 3 bytes, struct2 only takes 1...
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