IOS

IOS development NOTE 2: singleton, iossingleton Each app has only one UIApplication, and a class like UIApplication "[UIApplication sharedApplication]" has a unique instance design, that is, the singleton mode.Singleton design and key points Shows

Travel scenery display application source code iPad version, Landscape Display source code ipad Source code of an iPad travel scenery display application and an iPad travel scenic area display application. The effect is dazzling. You can flip pages

IOS Programming UINavigationController, ioscontroller jump IOS Programming UINavigationController The Settings application has multiple related screens of information: a list of settings (like Sounds), a detailed page for each setting, and a

[IOS] Use JSONModel and iosswiftjsonmodel in Swift Preface First, all models are written using oc. If you see whether you want to close the webpage or not, you can directly write an error in swift, so you will use oc, here, I will share my

Modify the last step of CocoaPods dependency library, cocoapods I read this blog http://blog.csdn.net/wzzvictory/article/details/20067595, but CocoaPods had an update in April 2015, and something trunk (see

IOS NSUserDefaults-lightweight local data storageIOS NSUserDefaults-lightweight local data storage IOS provides multiple processing methods for user data persistence: NSUserDefaults, plist, and sqlite3 databases are all good choices! NSUserDefaults

IOS development-NSURLSession for resumable downloadNSURLSession 1. Procedure 1> obtain the NSURLSession object 2> create a Task using the NSURLSession object 3> Start the task ([Task resume]) 2. Obtain the NSURLSession object 1> [NSURLSession

IOS map positioning uses several small FunctionsThe positioning service provided by the iOS system can meet many requirements. For example, obtain the current longitude and latitude, and obtain the current location information.Obtain the current

Full version of Inkpad application project source code and full version of inkpad source code A fully functional and effective vector graph rendering App source code. If you have used Adobe's AI software, you will understand some of the

Objective-C Properties, objective-c Objective-C Properties Apple introduced properties, a combination of new compiler ctictivesAnd a new attribute accessor syntax. Apple introduced the attribute concept. New compiler commands and new attribute

How to convert a non-ARC project to an ARC project How to convert a non-ARC project to an ARC project Xcode comes with an automatic conversion function, but it is only suitable for small projects. It is not suitable for large projects. Therefore,

IOS development and replication Summary (deep copy and shallow copy differences)1. Copy a variable string NSMutableString * city = [NSMutableString stringWithString: @ "Beijing"]; // copy the variable copy NSMutableString * cityCopy = [city

Source code of a High-imitation ios application, and the high-imitation ios source code Similar to basic functions. XMPP-based instant messaging and dating clients.---- The functions of the first code are as follows ----1. New User

KVC vs KVO (the content is reposted and summarized by everyone), kvckvo KVC is the abbreviation of key-value coding, KVO is the abbreviation of key-value observing. If you need to master the Key-Value Observing mechanism, you need to read this

Objective-C Memory Management Being Exceptional Exception Handling and Memory, memorymanagement Objective-C Memory Management Being Exceptional Exception Handling and Memory 3.1 Cocoa requires that all exceptions must be of type NSException Cocoa

Message forwarding in iOS   Well, running is a good thing. In Objective-C, this feature can help us do a lot of things. First, this feature changes code decisions from compilation and linking to running, so that we can use this feature to do

IOS gesture sliding between left and right 1. Add two gesture properties in "ViewController. h.  ? 1 2 @property (nonatomic, strong) UISwipeGestureRecognizer *leftSwipeGestureRecognizer; @property (nonatomic, strong)

How to Learn about IOS A colleague asked me how I learned about IOS. I don't necessarily have code for products ~ Sorry, yes, we don't need to. But if we do, we can better communicate with programmers. At least we can understand the same language. I

Introduction to Block in iOS (1) Basics and introduction to iosblockIntroduction to Block in iOS (I) Basics I. Overview Block is a C-level syntax and runtime feature. Block is similar to a C function, but the flexibility of Block is reflected in the

Tips for iOS development 1. function used to calculate the image position: AVMakeRectWithAspectRatioInsideRect () Through this function, we can calculate the center display of an image placed in another view according to a certain proportion. It may