Multithreading (2) GCD 1
We talked a lot about threads in the previous article about portals. In this article we will continue to learn about multi-threading, and we will...
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Tag: objective-c
Audio Basics
February 5, 2024
by 黃怡安
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This article mainly introduces the basis of audio. Before doing audio development, we must first understand the related concepts of audio. The following describes the...
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IOS Micro blog to share the page on the pit tips
February 5, 2024
by Sandra Priest
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! [pexels-trung-nguyen-2747045.jpg](https://p3-juejin.byteimg.com/tos-cn-i-k3u1fbpfcp/ff2deb932b3e4ba
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C# winform file selection function code
February 5, 2024
by 王雅玲
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The following content is about C# winform file selection function, hoping to be of some use to code farmers.
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C functions you might use when reading good source code (note)
February 5, 2024
by Kathryn Paterson-Murphy
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Use the fopen() function to create a new FILE or open an existing FILE. This call initializes an object of type FILE, which contains all...
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Hard coding and soft coding for VIDEO H264 on ios platform
February 5, 2024
by Oliver Butler
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Step 2: Set the encoder type to kCMVideoCodecType_H264 with the VTSessionSetProperty method and KVTCompressionPropertyKey_ExpectedFrameRate, kVTCompressionPropertyKey_AverageB...
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Use AudioQueue to do audio acquisition encoding and playback (with complete demo)
February 5, 2024
by Faiyaz Dugar
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In the development of live streaming applications, we often need to process audio in real time, such as audio recording, playing and coding. This article...
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IOS Hybrid framework – PhoneGap
February 5, 2024
by Shannon Bradley
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IOS Hybrid framework
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The first real iOS community – iOSCaff.com is officially launched!
February 4, 2024
by Christine Porter
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IOSCaff is a technical knowledge community for iOS developers, dedicated to providing a more efficient and convenient learning environment for developers.
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Principle analysis of Block
February 4, 2024
by Patrick Wilson
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Block is often used in our project, today we will learn about the principle of Block, __block function, Block circular reference problem. Let's take a...
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IOS song of Ice and Fire — Objective-C Pwn and iOS ARM64 ROP
February 4, 2024
by Vanessa Johnson
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0x00 sequence ice refers to user state and fire refers to kernel state. Breaking through the icebox of user-generated sandboxes and finally reaching and controlling...
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A preliminary study on the underlying principle of OC storage management
February 4, 2024
by Annette Knight
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As we all know, iOS uses reference count to manage object memory. After alloc, the reference count is 1. When a retain message is sent,...
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Common crash analysis – array out of bounds
February 4, 2024
by Prisha Kapadia
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Crash is a serious BUG. An excellent application should ensure that there is no easy Crash, and developers can control the Crash, that is, it...
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OC classification and class extension
February 4, 2024
by Kristina Walker
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H file. 1) the newly added method must be written between @interface and @end. 2)ClassName the ClassName of the existing class (for which method to...
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IOS Development – UIKit control UISearchBar
February 4, 2024
by Hrishita Koshy
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Today, search controls are needed for demand reasons; This control has not been used before, so go to Baidu, find a can be said to...
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IOS Anomaly Analysis
February 4, 2024
by Susan Wang
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There are state codes designed to identify different events in the processor and system kernel, and these states are encoded as different bits and signals....
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IOS child thread reads clipboard & iOS14 clipboard API adaptation
February 4, 2024
by Leon Gallagher
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When the main thread reads the clipboard, it happens that the main thread of APP freezes, and then the program is killed by the watchdog....
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IOS nine Yin True Classics: 20, KVO principle exploration and custom KVO
February 4, 2024
by Mamooty Din
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Key-value observation is a mechanism that allows an object to be notified when a specified property of another object changes. This article from how to...
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Fix iOS 10 does not pop up whether to allow XXX to access data, resulting in app can not be connected to the Internet bug
February 4, 2024
by Alan Ross
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There is a system bug in iOS 10: When the app is installed for the first time, an authorization box will pop up when the...
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IOS development: Advanced Drag and Drop
February 4, 2024
by Saanvi Hari
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We've already seen iOS 11's drag-and-drop feature. We've also tried drag-and-drop within a single view and across views, but it's not quite the same as...
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IOS local logging solution
February 4, 2024
by Thomas Goodman
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In our project, the log recording part is also quite important. Sometimes, when there is something wrong with the user program, the server's log can...
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Runtime learning: Interview questions sniping
February 4, 2024
by James Berg
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The previous two articles recorded some knowledge points and common applications of learning Runtime respectively. I set up a flag that I was going to...
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18. Message passing: message forwarding process
February 4, 2024
by Callum Hussain
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In Objective-C, when the essence of calling a method is message passing, the message passing does not find the implementation of the method after three...
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[iOS features]- The permission of iOS to access album for the first time was rejected due to popup
February 4, 2024
by Wendy Thomas-Wade
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https://www.jianshu.com/p/e29a58b4c399
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IOS15 Dynamic voice broadcast solution
February 4, 2024
by Cynthia Rodgers
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After iOS15, push multiple voice will generate multiple banners, for the dynamic amount of voice, multiple banners are not desirable solution to do version management,...
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IOS 9 Yin Truth: 19. In-depth understanding of KVC
February 4, 2024
by Derek Armstrong
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Key-value Coding (KVC) is a mechanism enabled by the NSKeyValueCoding informal protocol that objects use to provide indirect access to their attributes. When the object...
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Basic exploration — Analysis of class DE loading process (A) Runtime initialization
February 4, 2024
by Dr. Owen James
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Runtime initialization 1.1, Environ_init 1.2, Static_init 1.3, Runtime_init 1.4, Exception_INIT 1.5, _DYLD_OBJC_NOT
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IOS infinite rotation of images
February 4, 2024
by Navya Sastry
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Now, at the head of almost every app, you have a ScrollView that scrolls an image indefinitely, and then you click on the image to...
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What does the iOS super keyword do for us?
February 4, 2024
by Edward Copeland
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This article is about the actual operation principle of super. If you still have doubts about the distinction between super and self, please refer to...
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CGAffineTransformMake(A, B, C, D, TX, TY) matrix operation principle
February 4, 2024
by Dishani Gandhi
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In order to unify the changes of two-dimensional graphics in a coordinate system, the concept of homogeneous coordinates is introduced, that is, a graph is...
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