IOS

Objective-c ios multi-thread GCD deep understanding, objective-cgcd Two important concepts are added to GCD: task and queue.A thread can have multiple execution queues, and all tasks are added to the queue waiting for execution.The main queue column

Deep Dive into all aspects of Block, deep dive into blockContent outline: 1. Blocks Summary 2. Blocks Mode 3. Block essence (key points for interviews)  1. Blocks Summary What is Blocks: Blocks is an extension function of C language. It can be

Analysis of TCP/IP protocol families in iOS & Socket, iostcpIntroduction This article mainly reviews TCP/UDP, HTTP, and Socket in the TCP/IP protocol family.(-- This article is very dry and has been brewing for a long time! Can you watch it

Use UIPickerView (3) and use uipickerview   The usage of UIPickerView (I) and UIPickerView (II) in the first two articles learned how to use the single-column selector and double-row selector of UIPickerView. Now let's learn the interdependent multi-

Network Programming for iOS development-2. Download The NSURLSessionDownloadTask file and nsurlsessiondatatask   Content outline: 1. Review NSURLSessionTask 2. NSURLSessionDownloadTask large file block download 3. Download The

[Code notes] Merge multiple images, and merge Multiple Code notes. Code:   RootViewController. m   # Import "RootViewController. h "@ interface RootViewController () @ end @ implementation RootViewController-(id) initWithNibName :( NSString *)

For the female ios app with strong soul, the open source code and iosapp will be considered in the near future. I am so busy. I have been developing this App on and off for more than a month, and the frontend and backend are independently completed,

[Code Note] takes a UIView and takes a uiview. I ,. 2. Engineering Drawing. 3. Code. RootViewController. m # Import "RootViewController. h "@ interface RootViewController () @ end @ implementation RootViewController-(id) initWithNibName :(

Third-party-laser push 2.1.0 and third-party laser push 2.1.0 1. Create a category first # Import "AppDelegate + JPush. h "# import" JPUSHService. h "# import" WJNotifier. h "// dependent file static NSString * JIGUANG_PUSH_KEY = @" 4cd543c073753fb8

[Code Note] Click a button to produce 6 buttons and note the button. I ,.     2. Engineering Drawing. 3. Code. RootViewController. h # Import // Add the header file # import "DCPathButton. h" @ interface RootViewController: UIViewController @

Overall IOS project level building and ios level building When creating an IOS project, if there is a clear hierarchical architecture, it will be helpful for future code maintenance or function expansion; this article will show some of my views on

Jitter of some controls in IOS and IOS   I saw a post on the Internet over the past two days to discuss the jitter effect when some apps enter the account and password. Then I figured out how to implement it. The code below is shown !!! First, write

IOS development ~ UI layout (1) Size Class, iosui With the release of the iOS8 system, a new page UI Layout Concept emerged. This new feature will subvert the UI layout methods of iOS7 and earlier versions. This new feature is the Size Class. With

New Feature of iOS: iOS 6.x-Main Content: Automatic Layout, set view, and UI status persistence   IOS6.1 MapKit Searches IOS6.0 Map Maps Social Framework Pass Development Kit PassKit Game Center GameCenter Reminder Reminders In-APP

QR code scanning and iOS scanning in ios With the extensive promotion, more and more people will use the QR code in their daily lives. Therefore, many apps gradually add the QR code element. Today, I will introduce you to the iOS7 system, which can

(No. 00004) implementing the brick-hitting game for iOS (9): collision between the ball in the game and the rebound Rod   The previous blog post introduced the collision processing between small balls and bricks in physical objects. In this

When using AFNetworking in iOS, the following error occurs: Request failed: unacceptable content-type: text/html, and iosafnetworking.   Error Log: Error Domain = com. alamofire. error. serialization. response Code =-1016 "Request failed:

[Reading Notes] iOS network-use Game Kit to implement inter-device communication and ioskit Apple's Game Kit framework enables communication between devices without a network, including the absence of cellular services, wi-Fi infrastructure and LAN

Attribute Value Transfer Between iOS pages, proxy value transfer, and ios page When the mobile APP is running, it is essential to pass values between different pages. There are many ways to pass values (method-based value transfer, attribute-based

Data Persistence UI pro in iOS _ 17 The essence of data persistence is to write data from the inside to the local (hard disk), and write the data to the sandbox folder in iOS; Sandbox mechanism: manages local files of applications in the form of