Programmer Think

Article 1: understand the origin of Objective-C Objective-C evolved from Smalltalk (the ancestor of message language), so Objective-C uses "message structure" rather than "function call". The difference between the two is as follows: //Messaging (Objective-C) Object *obj = [Object new]; [obj performWith:parameter1 and ...

In September 2021, Apple released xcode13 and iOS15. Every year, apple requires developers to limit the submission of Xcode versions of market apps. The mobile securities App makes full time preparations to deal with the restrictions in advance. At present, the company's project is adapting in advance, so it is recorded again. 1. Prob ...

1. Review In the previous blogs, I mainly talked about class loading, including the underlying exploration of classification loading. This time, I will analyze the class extension and associated objects. Loading of iOS underlying exploration (III): attachCategories analysis 2. Expansion 2.1 what is classification and extension First, let's ...

A MaterialPageRoute component is provided in the Material component library, which can use route switching animation consistent with the platform style. For example, it will slide left and right on iOS and up and down on Android. Now, what should we do if we also want to use the left-right switching style on Android? A simple way is to directly ...

HandyJSON HandyJSON is a framework developed by Ali to convert JSON data into corresponding models on swift. Compared with other popular Swift JSON libraries, HandyJSON is characterized by its support for pure swift classes and ease of use. When it is deserialized (converting JSON to Model), it does not require Model to inherit from NSObje ...

Article starting address( Mr Huang xiansen's blog (thatisawesome.club)) Business background Think of a business scenario where the client initiates a task submission request to the Server through the / api/commit interface, and the Server returns a successful Response after receiving the request , in order to obtain the execution progress of ...

Author Pu KeThis paper introduces how to design the architecture of a large Android project from 0 to 1.One guideThis article is long and can be combined with the following table to guide you to quickly understand the main context of the full text.II. Project architecture evolutionThis chapter mainly summarizes the evolution process of an Andro ...

Relationship between process and thread A process is an application running in the system. Each process is independent. Each process runs in its dedicated and protected memory space. If a process wants to perform tasks, it must have a thread (each process must have at least one thread, called the main thread). All tasks of a process (progra ...

Download Python 3 https://www.python.org/downloads/mac-osx/ Modify environment variables Modify ~ /. Under the user root directory bash_profile file, input at the terminal: vi ~/.bash_profile Add a new row PATH="/Library/Frameworks/Python.framework/Versions/3.9/bin:${PATH}" export PATH alias python="/Library/Frameworks/Python.framework ...

preface Recently, the UIWebView in the project was replaced with WKWebView, so let's summarize. Example Demo: Use of WKWebView This article will introduce WKWebView from the following aspects: 1. Some classes involved in WKWebView 2. Proxy methods involved in WKWebView 3. Implementation of web content loading progress bar and title 4. Inter ...