Ios uses sqlite to operate a simple database instance

Static pthread_mutex_t dbMutex = PTHREAD_MUTEX_INITIALIZER;Static sem_t * dbSem [10];Static sqlite3 * db;Static sqlite3_stmt * insertStmt = NULL;Static sqlite3_stmt * queryStmt = NULL; Void createAndOpenDB (void );Void * insertIntoDB (void *);Void

Objective-C Variable Parameter Function Definition

The Objective-C Variable Parameter Function Definition is described in search in this article. When database operations are involved in the iPhone, variable parameters must be passed in the update operation, these variable parameters are actually

Cocos2dx developed in xcode and compiled to android (2)

1. Check that your eclipse environment has been configured on mac. [android code can be compiled on eclipse and can be run on a virtual machine or on a real machine.] the address of my sdk is: [Plain]Localhost: android-sdk-macosx b126 $

IOS cainiao learning-using nib files to customize Cells

First, the class for creating a custom cell must inherit from UITableViewCell. We call it the CustomCell class.Then, create a new view file. We call this file CustomCell. xib. Open CustomCell. xib, delete the view, and add a UITableViewCell. Click

Ios Study Notes (2) Implement basic interaction under xcode 4.3.2

I think everyone has read the basic tutorial on iPhone 4 and ipad2 development. xcode in this book is different from the latest version. With view base application removed, only single view application is similar. First, create a single view

IOS learning 3: Extended OOP, category, and memory management of Objective-C

In fact, I don't know how to write these concepts. I can't copy them directly from a book. It's better to buy books.Abstract concepts are generally written by masters. For example, this can be the java programming idea of a pillow. That's really an

Cocos2d-x Study Notes (3)-action

For a game, action is very important, good action can greatly improve the playability of the game, there is a category in the cocos2d-x engine, CCAction is the base class of the category class, an action is defined on a node (CCNode). It targets

LWUIT pilot bee map development example: IP address query

You can query the geographical longitude and latitude coordinates of an IP address based on the IP address. For example, in the following example, the IP address 58.192.32.1 is located at 118.777802 and 32.061699, which is the location of Nanjing

Cocos2d-x offline document generation

Cocos2d-x source code has been doxygen project, you can directly generate the source code documentation. 1. Install doxygen [Cpp]Svn co https://doxygen.svn.sourceforge.net/svnroot/doxygen/trunk doxygen-svn Svn co

Image Processing in iOS (III)-hybrid computing

Sometimes it is difficult or impossible to process an image independently. The emergence of a good filter effect often requires a lot of complex steps, careful fine-tuning, image application effect observation, and many layers. I found some common

One of cocos2d-x animations

Struct transformValues _ has the following parameters: CCPoint pos; // position x and yCCPoint scale; // scale x and y to zoom in and outFloat rotation; rotationCCPoint skew; // skew x and y skewCCPoint ap; // anchor point in pixels anchorBool

Cocos2d-x Study Notes (16) -- spritesheet (genie form)

Cocos2d-x Study Notes (16) -- spritesheet (genie form)Before talking about the content, we need to make some preparations before class;The sprintf function is defined as follows:Int sprintf (char * buffer, const char * format [argument]

PhoneGap layout (1)

Look! Styles and colors whitelist This text is in Verdana Grand Prix and red This text is in Times and handsome green This text is 30, do you know pixels high   Useful Tips Section Visit the Useful Tips Section This is the first This is

Cocos2d_x + lua ------ real-time Action of Action

I. Concept of instant actionThe CCActionInstant class,Most Real-Time actions have corresponding attribute setting methods. They are implemented as an action to form a continuous action with other actions,The cocos2d-x provides the following

Cocos2d_x + lua ------ touch screen event

To enable the CCLayer touch screen, you only need two steps. [Cpp]-- Rewrite the corresponding touch functionPtTouchBegan = nilPtTouchEnd = nilLocal function onTouchBegan (x, y)PtTouchBegan = CCPointMake (x, y)EndWww.2cto.comLocal function

User Experience elements of App Software Development

Survival status of domestic apps Nowadays, the domestic App market is a crisis and opportunity. Because there is no clearly-defined development platform in China, App development is mostly in a decentralized State, developers are also exploring in

Cocos2d-x 2.0.4 in iPad iOS 4.3 jpgimage Alpha Display Error Solution

Today, when I installed an iOS 4.3 iPad, I suddenly found that all the JPG images in the game were very dark. In fact, JPG became translucent. It was previously run on more than 5.1 systems, so this problem was not found. After reading the code, we

SurfaceView displays animation Effects

I. Basic Knowledge: SurfaceView inherits from the View. View updates the animation in the main thread, while SurfaceView updates the animation in a new thread. Main Methods of SurfaceView class: // call pubilic abstract void surfaceCreated

Cocos2d-x jitters the entire game scene CCShake

CCShake. h [cpp] # ifndef _ SHAKE_H _ # define _ SHAKE_H _ # include "CCActionInterval. h "class CCShake: public cocos2d: CCActionInterval {// Code by Francois Guibert // Contact: www.frozax.com- http://twitter.com/frozax -Www.facebook.com/frozax

Cocos2d-iphone magic tower layer 20 Part 1

We need to add monsters to view this part. First, let's look at the figure below: This is what we want to achieve, it is easy to see that the content displayed by each monster is similar to that in its similarity. Here we need to add two classes of

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