IOS

Multiple cocos2dx Sprite creation methods, cocos2dxsprite 1. Create a file Sprite *bg = Sprite::create("backGround.jpg");   2. Create an image in a region 1 SpriteFrame *frame = SpriteFrame::create("pean.jpg", Rect(0, 0, 300, 300));2 Sprite

IOS Automatic Layout and elastic box When my colleague asked me this question, I came up with the word "elastic box ". Problem: There is a Cell with four controls arranged side by side. The layout is shown in: Hypothesis:

Common Objective-C NSString and nsstring Methods Tip: the previous ones are more common. 1. Create a string Instance method: -(Instancetype) initWithFormat :( NSString *) format Format to generate a String object This method is commonly used and has

How does xcode analyze and detect memory leakage (iOS) and xcodeios? Although the ARC mechanism is added to iOS 5.0 and later versions, memory leakage may still exist due to the complicated mutual reference relationship. Therefore, it is important

Basic NSURL operations and basic iosnsurl operations in iOS development1. URLURL is a simple representation of the location and access method of resources that can be obtained from the Internet. It is the address of standard resources on the

Enable and disable the NSTimer timer in iOS, iosnstimer I. Only call the timer method once: // It is not repeated and is called only once. Timer stops running once MyTimer = [NSTimer scheduledTimerWithTimeInterval: 1.5 target: self selector: @

IOS shake, iOS -(Void) viewDidLoad {[super viewDidLoad]; [[UIApplication sharedApplication] setApplicationSupportsShakeToEdit: YES]; // sets whether redo and undo operations are supported when a shake occurs. The default value is yes, therefore,

Core Data simple learning 01, coredata 01 Core Data is a framework developed by Apple for Mac and iOS platforms. Using CoreData, You can locally generate the database sqlite and provide the ORM function to convert objects and Data models. manage and

IOS-sqlite3 & FMDB use code demonstration, iossqlite3 use Database operations are a frequently used operation. We have to consider how to use the database and what database to use in iOS. Small data can be stored in plist or NSUserDefaults. When the

(No. 00004) implementing the brick-hitting game for iOS (6): rebound Rod   Another element of the brick-hitting game is the rebound rod. In this class, we will implement the rebound rod class.Create a bounce stick header file Create a Stick

Illusion: starting with a seemingly simple custom control Why is it so long to write this blog today? It's a winter of heavy snow ...... Then ....... Now, let's get started with today's topic. this blog is about iOS custom components. Some UI

UIButton, uibutton text in the left // UIButton-> UIControl-> UIView // UIControl controls with operations are inherited from them   // UIButton instantiation class method instantiation // There is no position or size during instantiation. You need

ANSI escape code, ansiescapecode Recently, I am working on the SSH Terminal Project on iOS. It is mainly to remotely connect to Unix systems on mobile phones and perform some simple commands, similar to SecureCRT; today I want to summarize the new

ARC mechanism, arcI. Basic Introduction ARC is a new feature added since iOS 5, completely eliminating the hassle of manual memory management. The compiler will automatically insert appropriate retain, release, and autorelease statements in

After the SVN version is updated and the upData project is completed, the Xcode project file cannot be opened. Solution: svnxcode After svn updates the code, open the xcode project file and xxx. xcodeproj cannot be opened because will appear.The

GPUImageContext class for GPUImage API documentation, gpuimage The GPUImageContext class provides the basic environment of OpenGL ES, which is generally not used. 　　Attribute @ Property (readonly, nonatomic) dispatch_queue_t contextQueue Creates a

Objective-C's total Runtime (1) message mechanism [conversion], objective-cruntime RunTime is short for RunTime. It is the mechanism of the system when it is running, the most important of which is the message mechanism. For C language, function

IOS error diagnosis-linker command failed with exit code 1After Xcode was recently upgraded, it was found that all previous projects could not be compiled, and different errors were reported, some of which were-fembed-bitcode is not supported on

Singleton in iOS development, iOS development 　　 In iOS development, Singleton is often used. For example, each iOS program is a Singleton, and a singleton is used for storage of personal preferences. So how can we write a singleton class by

OC, oc Language  Introduction Function Draw Drawing: lines, triangles, rectangles, circles, and Arcs Draw text Draw \ generate image (image) Read \ generate PDF \ Crop an image Custom UI controls (usually controls with complicated