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IOS CAEmitter Layer Implementing Animation Effect of Particle Emission Design sketch The code has been uploaded to GitHub: https://github.com/Silence-GitHub/CoreAnimationDemo The animation effect is realized by CAEmitter Layer. CAEmitter Layer displays particle emission animation, the specific particles are encapsulated by CAEmitter Cell. The ...

Guide reading Simply use OC to write a small ball rolling effect;It's like a balance ball. GitHub address: https://github.com/wangliujiayou/WLBallView Welcome to Star. Worship rolling Get to the Topic - (Sensors) Sensor is an induction detection device, which has been widely used in smart phones to detect the information around the device. ...

IO Classification IO Classification: Blocking IO, Non-Blocking IO, IO Multiplexing, Asynchronous IO, etc. Blocking IO 1. Definition: Block if the execution condition is not satisfied when performing an IO operation.Blocking IO is the default form of IO. 2. Efficiency: Blocking IO is a very inefficient type of IO.But because of its simplicit ...

IOS 11 has released beta, and I believe some of the partners with the iphone are eager to upgrade.So in this article, we use a simple custom View to implement a very novel progress bar in the control center similar to iOS 11. Let's first look at the target effect map and the final result. Target rendering Achieving results Custom Property A ...

Scenario Reproduction Many times, when we write programs, there will be such a situation, that is, code multiple-choice operations. For example, the following operations. For example, there are four view views (A, B, C, D, respectively). When the button a is clicked, the background color of view A and B changes. Whe ...

I'm very sorry to have paid attention to the columnists, but there have been few updates in the last month. This time share a react mobile end encapsulated rolling plug-in. When we do vertical rolling on the mobile end, there will be various problems, such as carton, penetration, compatibility, and the most intolerable is carton, such as the us ...

This week's physical condition is not good, so updates are limited. Anyway, it's not urgent for this time and a half, and less is more confusing, isn't it? I'm thinking about a problem now. When resume production is completed and delivered, Nima personnel should install a Node environment in the terminal for npm operation. Eh.......... No IP pa ...

First, what is NSOperation? NSOperation is a multithreaded solution offered by Apple. In fact, NSOperation is based on a higher level of encapsulation of GCD, but it is more object-oriented, more readable and more controllable than GCD. It is very important to add operation dependency. By default, NSOperations can only perform operations synchr ...

Author: Arthur Knopper, Links to the original text Original date: 2017-04-04 Translator: Crystal Sun Proofreading:way Finalization: shanks Translator's Note: This is an updated version of the previous article. Old Text Links The Swift version used in the old version is not 3.0. This article updates the code and upgrades to Swift 3.0. Attribu ...

MBProgress HUD is a tripartite library for displaying prompt windows, which is often used for user interaction, background time-consuming operations and other prompts. By displaying a prompt box, the user can be notified of the status of operation or task execution. At the same time, the animation effect can be used to reduce the anxiety of th ...