Programmer Group

App Store Scoring Method 1. Open App Store directly through open URL No version restrictions, you can jump directly to the comment interface. On the scoring page, you can score and evaluate, and comments are more valuable. The disadvantage is that jumping to App Store requires login and the transformation of user's operation scenario, whic ...

Preface In iOS development, UITextField and UITextView are the most commonly used text acceptance class and text display class controls. Both UITextField and UITextView input text and can also monitor text changes. The difference is that UITextField inherits from the abstract class UIControl. UITextView inherits from the entity class UIScrol ...

iOS Black Technology (AVFoundation) Dynamic Face Recognition (II) In the previous article, we introduced the static face recognition implemented by Core Image. Here we introduce dynamic face recognition, one of the powerful functions of AVFoundation. First, introduce some methods of face recognition. 1. CoreI ...

See the source code for AFNetworking. The fourth source code, for the time being, is also the last one in the direction of iOS, and is ready to take advantage of the hot Internet protocol. Catalog Dead work functional module AFURLSessionManager/AFHTTPSessionManager Core code Some interesting things When listening for at ...

1. Developing a Functional ~~Effect Map of "Player Information" [train of thought analysis:] A grid component is needed to display the data, a grid component needs a column array to display the returned results, a grid needs a store, and a store needs a model. At the same time, grid also needs a toolbar and queryF ...

There are four ways to store data in iOS: plist storage, preferences, NSCoding archives, databases The first three are stored in the sandbox of the iPhone and the second in the database. Before learning about iOS storage methods, first learn about iOS storage mechanism - sandboxApplication sandbox mechanism: Each iOS application has its own a ...

This article is mainly reproduced from: Objective-C-Coding-Guidelines-In-Chinese Objective-C coding specification, content from Apple, Google document translation, your coding experience and summary of other information. Summary Objective-C is an object-oriented dynamic programming language that is mainly used to write iOS and Mac applications. ...

Simple Line Segment Tree for Enemy Arrangement https://vjudge.net/contest/295911#problem/A Time limit: 1000 ms Memory limit: 32768 kB OS: Windows describe Country C's deadly rival, Country A, was conducting military exercises during this period, so Derek, the spy chief of Country C, and Tidy, his men, were busy again. The ta ...

React Native has been upgraded to 0.51.0, and the version has been upgraded very quickly, but there are also some problems with old projects, the common problem is that attributes can not be found. For example: The main reason is that with the upgrade of React Native, the system has discarded a lot of things. In the past, we can use React.Pro ...

Today, by writing a simple maze game, we show you how to use the built-in accelerometer of the iPhone. The effect of the game is shown in the following figure. Users control the orange pacman moving by shaking the screen up and down, pacman will bounce back when it hits the edge of the screen or the wall (blue border box), and ...