Several Methods for parsing iOS json: NSJSONSerialization, JSONKit, SBJson, TouchJson, and jsonkitsbjson

Several Methods for parsing iOS json: NSJSONSerialization, JSONKit, SBJson, TouchJson, and jsonkitsbjson You can download related third-party class libraries from github.1. NSJSONSerialization The Code is as follows: -(Void) viewDidLoad {[super

In-depth introduction to React Native 2: My first application, reactnative

In-depth introduction to React Native 2: My first application, reactnative This is the second article in The React Native tutorial. 1. Environment Configuration After the React Native environment is configured, you can start to create our first App.

IOS packaging (ipa package)

IOS packaging (ipa package) 1. Open XCode, open the project file, select Product, and then click Archive. 2. Right-click Shoe In Finder 3. Right-click and select "show Package content" 4. Double-click the Products folder 5. Open iTunes, click

Use Objective-C to calculate the code running time and objective-c code

Use Objective-C to calculate the code running time and objective-c codeFirst: (the simplest NSDate) NSDate* tmpStartData = [NSDate date];//You code here...double deltaTime = [[NSDate date] timeIntervalSinceDate:tmpStartData];NSLog(@"cost time = %f",

Use of GIT command line, use of GIT command line

Use of GIT command line, use of GIT command line If you know something wrong, give me some advice. First, I want to know what GIT is. GIT is an open-source distributed version control tool. Among all the distributed version control tools in the

Ios development-get and post, ios development-getpost

Ios development-get and post, ios development-getpost Example: drag two controls textField and UIButton on the storyboard to connect them (userNameText, password, and login )) @ Interface ViewController () @ Property (nonatomic, weak) IBOutlet

Simple IOS date format display, ios display

Simple IOS date format display, ios display First of all, I want to explain the meaning of the title and the concise format of the date. The reason for the introduction is that it makes people clear at a glance and does not need to think about the

[Code Note] Get the date of the current week, the date of the Code note

[Code Note] Get the date of the current week, the date of the Code note I. Code. -(Void) viewDidLoad {[super viewDidLoad]; // Do any additional setup after loading the view, typically from a nib. NSLog (@ "current week: % @", [self

IOS block, used as the callback function instead of the proxy, ios callback function

IOS block, used as the callback function instead of the proxy, ios callback function Recently, I am working on a video conference project, but what I want to talk about today is basically irrelevant to the video. Let's create a button in a view and

IOS-Automatic Layout code version (original) and ios-original layout code

IOS-Automatic Layout code version (original) and ios-original layout codeIntroduction basic knowledge under certain circumstances we need to use autolayout so that we can associate the positions of views and views. Horizontal: The minimum width of

IOS-multithreading GCD (original), ios-multithreading gcd original

IOS-multithreading GCD (original), ios-multithreading gcd originalPreface GCD Grand Central DisPath NSOperation is a GCD-based encapsulation.  Basic knowledge 1. GCD advantages (1) proposed solutions for multi-core parallel operations (2) GCD will

IOS complex UI Layout-16 (-(void) scrollViewDidEndScrollingAnimation: Method Usage Note)

IOS complex UI Layout-16 (-(void) scrollViewDidEndScrollingAnimation: Method Usage Note) Today, when I was writing a project, I encountered a crazy thing. As shown in the title, this method turns around. -(Void) scrollViewDidEndScrollingAnimation:

Multi-threaded Multi-image download 1. multi-threaded image download

Multi-threaded Multi-image download 1. multi-threaded image download The results are as follows:   You can see that this interface is very simple. It is actually the layout of UITableView, However, the difficulty lies in how to download these

Multi-threaded Multi-image download 2. multi-threaded image download

Multi-threaded Multi-image download 2. multi-threaded image download The final demonstration is as follows:   This is a multi-threaded download and storage of images. Considering the download failure, the placeholder image problem occurs (the first

In-depth analysis of the Runtime mechanism in iOS development, and development of the runtime mechanism in ios

In-depth analysis of the Runtime mechanism in iOS development, and development of the runtime mechanism in ios This article mainly describes the runtime mechanism involved in OC development: Running work: Runtime work in OC: The design mode of OC

In-depth introduction to React Native: Environment configuration, reactnative

In-depth introduction to React Native: Environment configuration, reactnative This tutorial mainly describes how to use react native to develop iOS. Therefore, you need a mac. Of course, black apple is also acceptable ~ To create a react native

Use of GCD-related functions

Use of GCD-related functions GCD It is one of iOS multi-thread implementation solutions and is very common. It is also known as a great central scheduler. Is a solution proposed by Apple for multi-core parallel computing   1. One-time

IOS miscellaneous-14 (forgotten owner), ios-14

IOS miscellaneous-14 (forgotten owner), ios-14 * The owner has rarely used any children's shoes during development. You can check them out * We often encounter a similar [[NSBundle mainBundle] loadNibNamed: @ "Food" owner: nil options: nil]

LLDB for iOS debugging

LLDB for iOS debuggingBrief Introduction LLDB is an open-source debugging tool built into XCode. It can install C ++ or Python plug-ins. Corresponding to LLDB is gdb, which mainly exists in program debugging tools based on UNIX

IOS development-Multithreading

IOS development-Multithreading Knowledge Point1. Understand the concept of Thread2. Use of NSThread3. Use of NSOperation4. Use of GCD5. thread lock, thread security ====================================1. multithreading is a technology for

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