Runloop and thread happy time
We know that if we use macOS to create a command line project for testing, it will execute the main function and the program will...
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Tag: objective-c
OC Underlying principle 05: Class structure cache
January 7, 2024
by Travis Porter
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In the analysis of class structure, we talked about cache: caching methods using hash tables. Let's take a closer look at cache. Regardless of the...
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OC Fundamentals 06: Fast lookup process for message flow analysis
January 7, 2024
by Miss Sara Welch
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In the last article, we explored how the insert method inserts SEL and IMP into the cache when instance objects call instance methods. Now let's...
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JS interacting with OC (calling h5 Action and returning callback)
January 7, 2024
by 王惠如
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JS and OC interaction (call H5 action, return callback) some time ago encountered a requirement, need to use JS injection client local login data, to...
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OC combing Automatic layout
January 7, 2024
by Matthew Brennan
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An error? Do not panic, when the length of the text of the two labels plus the horizontal spacing is not enough to fill the...
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OC Underlying Principle 07: Slow lookup process for message flow analysis
January 7, 2024
by 王家豪
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When objc_msgSend cannot find a method in the cache cache, the source code executes CheckMiss and JumpMiss, and a slow lookup is performed. Get the...
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Effective Objective-C 2.0 Effective Objective-C 2.0
January 7, 2024
by Annette Knight
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Objective-c manages memory with reference counting, which many beginners struggle with, especially if they've used a language that manages memory in a "garbage collector." The...
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KVO Analysis of underlying principles of iOS (Part 2)
January 6, 2024
by Sean Smith
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We analyzed the KVO principle in the KVO analysis (1) of the underlying principle of iOS above, and this paper mainly defines the implementation of...
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NSTimer does not release problem analysis and solution
January 6, 2024
by Anthony Thompson
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NSTimer does not release the problem as shown in the code above, we create a timer and add it to the current runLoop, also modify...
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Memory management – Weak reference analysis
January 6, 2024
by Melissa Evans
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In the memory management - Retain&Realese rootRetain function, we introduce the direct manipulation of the hash table when isa is not of type nonpointer to...
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About the Object
January 6, 2024
by Nigel Knox
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Object can be thought of as a class. There are 19 static methods on Object and 11 methods on the prototype. Assign If the properties...
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KVO Analysis of underlying Principles of iOS (PART 1)
January 6, 2024
by 張惠婷
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KVO, short for key-value Observing, is used to monitor the changes of object properties. Let's take the IFPerson class as an example to study the...
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GCD tasks and queues in iOS
January 6, 2024
by 丁怡安
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Grand Central Dispatch (GCD) is a multi-core programming solution developed by Apple. It is a set of PURE C apis for optimizing applications to support...
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IOSer self-cultivation | Everything you need to know about Blocks
January 6, 2024
by Chelsea Parrish DDS
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This article will start from a few interview questions, from OC to C++ and then dive into the underlying source code, with you familiar with...
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IOS low-level explore KVC
January 6, 2024
by Trevor Clark
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In iOS development, you can use setValue:forKey: to set the value of an object's member variable. What is the principle? Right-click Jump to Definit where...
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Looping and traversing of object properties
January 6, 2024
by Lori May
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Object property traversal method for... In the Object. The keys/Object. Values/Object. The entries Object. GetOwmPropertyName traversal methods own properties Inherit the attributes
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[iOS features]- NSString string handling (interception, inclusion, capitalization, etc.)
January 6, 2024
by Albert Hardy
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1, cut string 2, determine whether the string contains a field 3, string to lowercase 4, delete (replace) specified string 5, retain 2 decimal point...
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Quartz2D + particle animation + CoreAnimation to achieve a simple version of chang ‘e to the moon
January 6, 2024
by Aaron Lee
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When the Mid-Autumn Festival is approaching, I suddenly found that the gold digger children are stealing (DA) stealing (Zhang) touching (QI) touching (gu) activities. That...
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Ios-moblink integration process
January 6, 2024
by 孫中山
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MobLink is a service from MobTech. These include the familiar ShareSDK, SMSSDK, seconds, MobPush, and MobLink. Official explanation: MobLink is a mobile scene restoration solution....
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IOS push development,NSData format deviceToken to NSString method
January 6, 2024
by Abigail Ford-Little
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Middle is... Omitted. There is no way to copy and debug. Therefore, another way to think about it is to print the deviceToken object directly:...
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IOS: Block instead of Notifications
January 6, 2024
by 劉懿
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), they have implemented the notification function. In the previous implementation, the Runtime was used for dynamic binding, which achieved the final result but also...
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Hand rip iOS bottom 10 — Strong© & Weak bottom understand
January 5, 2024
by Mr. Jonathan Richards
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In objC-781's source code, the corresponding method is shown above. More types can be found in this table on the official website.
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IOS – How to deeply copy Array elements, custom objects, and properties of custom objects
January 5, 2024
by Kristina Walker
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The nickname of the Person in the NSArray is the nickname of the Person in the NSArray
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IOS13 [UIViewController presentViewController] style adaptation
January 5, 2024
by Tania Wilton
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This style obviously doesn't fit our UI, and the problem is that we've been ignoring the UIModalPresentationStyle property. In versions prior to iOS13, UIViewController's UIModalPresentationStyle...
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About 13 locking schemes in iOS
January 5, 2024
by Sherry Mullins
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There are a lot of locks in iOS, so how do you use them? This article shares 13 locking schemes. This is a long article...
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IOS multithreading: a detailed summary of “pthread, NSThread”
January 5, 2024
by Mishti Sibal
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Pthread is a set of universal multithreading API, which can be used cross-platform in Unix, Linux, Windows and other systems. It is written in C...
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Comprehensive understanding of DNS and HTTPDNS
January 5, 2024
by 劉雅芳
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The cost of DNS resolution in mobile scenario is a non-negligible part of the total network request. In the weak network environment, the udp-based LocalDNS...
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IOS13 adaptation
January 5, 2024
by Mark Mccoy
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Compiling on Xcode10 will be fine, but compiling on Xcode11 will crash. - (void)setValue:(nullable id)value forKey:(NSString *)key - (void)setValue:(nullable id)value fo...
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Hand Rip iOS Bottom 12 — cache_t In-depth analysis
January 5, 2024
by Hazel Sanghvi
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Struct bucket *buckets(); Sel () and IMP (Class) methods of bucket_t to get sel and IMP. From the above analysis, method caching is performed every...
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Talk about iOS componentized development
January 5, 2024
by Ritvik Sule
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Componentization, as one of the mainstream methods of mobile application architecture, has been actively explored and practiced by the industry in recent years. In the...
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