IOS

Sometimes we need to draw a graph of irregular paths, which may contain lines or curves, and can be implemented using Uibezierpath. The Uibezierpath class can represent any shape that can be defined with Bézier curves, and we can

Company project needs to develop a similar QQ, micro-letter Instant IM chat function, do real-time monitoring messages, need to use the technology is websocket. Overview WebSocket: 1.1 Why do we need to websocket such a real-time communication

iOS implementation multi-agent What is multi-agent Use the Ring Letter SDK students should be more than a stranger to the agent, please see the following code: @method @brief Register a listener to the listening list @discussion Add the

Implementing UITableView Control Data RefreshI. Project document structure and plist documents Second, realize the effect 1. Description: This is a hero display interface, click on the selected row, you can change the name of the row hero

Nsurlconnection as an abstraction above the Core foundation/cfnetwork framework API, in 2003, as the first edition of Safari was released. Nsurlconnection this name, in effect, refers to the Foundation frame URL loading system in a series of

Socket Now in IOS applications to the Socket slowly up, on an instant messaging, many applications have integration, that instant messaging function is generally certainly based on the socket, socket this topic I have been talking about less, one

Definedto avoid coupling the sender of the request with the receiver, make it possible for multiple objects to receive requests, connect these objects to a chain, and pass the request along this chain until the object handles it, the responsibility

What is Memo mode? In response to certain events, the application needs to save its state, such as when the user saves the document or the program exits. For example, before the game exits, you may need to save the status of the current session,

Events in iOS fall into three categories: touch events, accelerometer events, and remote control events. Only objects that inherit Uiresponder can receive and process events, called Responder objects. UIApplication, Uiviewcontroller and UIView all

The example of this article introduces the iOS clock development process, for your reference, the specific contents are as follows The idea is to use calayer implicit animation to achieve. Because the UIView layer, which is a manually created layer,

UIButton highlight and uibutton highlight on UITableView or UIScrollVIewUIButton highlight on UITableView or UIScrollVIew Address: http://www.jianshu.com/p/b4331f06bd34Recently, when I was working on a project, I found that the UIButton click on

IOS system analysis (2) Mach-O binary file parsing, Refer to the following link for more technical tips: Alibaba Cloud blog 0x01 Mach-O Format The Mach-O file format is the executable file format on OS X and iOS systems, similar to windows PE files

Comprehensive Explanation of iOS AVKit audio and video playback, Audio and video processing is often used in company projects, and some things need to be customized. It is especially important to sort out these audio and video processing! It is

Knowledge points and techniques used in iOS interviews, and ios interview knowledge points 1. What is the life cycle of the APP and viewcontroler? A: APP lifecycle: there are seven phases in APP Proxy: 1. Start 2. Started 3. Enter the inactive

Step by step filter (1) Basic Color knowledge, step by step filter I declare in advance that my goal is to write a filter function by myself, instead of using open source filters or system filters. I think those filters are good but cannot be

Basic knowledge of IOS development-fragmentation 48, basic knowledge of ios-48 1: Assertion failure in dequeueReusableCellWithIdentifier: forIndexPath: static NSString *CellIdentifier = @"Cell";UITableViewCell *cell = [tableView

Basic configuration of project and Project Creation and basic configuration of App development process My development environment is: Mac OS X EI Capitan (10.11.6), Xcode 7.3.1 First of all, I want to explain the original intention of this project.

When the layoutSubviews and drawRect methods of UIView are called, layoutsubviews are not called First, both methods are executed asynchronously.LayoutSubviews facilitate data computing and drawRect facilitate view re-painting.LayoutSubviews will be

Swift class, inheritance, interface, swift class inheritance Interface Import Foundationclass Hello {var _ name: String? = "Swift global" init (name: String) {// constructor with parameters in the definition class _ name = name; println ("Hello, \

IOS-learning roadmap and ios-Roadmap When learning a new knowledge, in addition to maintaining a positive attitude and desire for knowledge, the learning route and method are also very important. When I was learning iOS, I had such a situation that