5. coccos2d-x CCTextFieldTTF 输入框

#ifndef __HELLOWORLD_SCENE_H__
#define __HELLOWORLD_SCENE_H__

#include "cocos2d.h"

using namespace cocos2d;
class HelloWorld : public cocos2d::CCLayer ,public cocos2d::CCTextFieldDelegate
{
public:
    // Method 'init' in cocos2d-x returns bool, instead of 'id' in cocos2d-iphone (an object pointer)
    virtual bool init();

    // there's no 'id' in cpp, so we recommend to return the class instance pointer
    static cocos2d::CCScene* scene();
    
    // a selector callback
    void menuCloseCallback(CCObject* pSender);
    
    //用户启动虚拟键盘时回调函数
    virtual bool onTextFieldAttachWithIME(CCTextFieldTTF * sender);
    //当用户关闭虚拟键盘时回调
    virtual bool onTextFieldDetachWithIME(CCTextFieldTTF * sender);
    //当用户进行输入时回调函数
    virtual bool onTextFieldInsertText(CCTextFieldTTF * sender, const char * text, int nLen);
    //当用户删除文字时回调函数
    virtual bool onTextFieldDeleteBackward(CCTextFieldTTF * sender, const char * delText, int nLen);

    // preprocessor macro for "static create()" constructor ( node() deprecated )
    CREATE_FUNC(HelloWorld);
};

#endif // __HELLOWORLD_SCENE_H__

#include "HelloWorldScene.h"
#include "SimpleAudioEngine.h"

using namespace cocos2d;
using namespace CocosDenshion;

CCScene* HelloWorld::scene()
{
    // 'scene' is an autorelease object
    CCScene *scene = CCScene::create();
    
    // 'layer' is an autorelease object
    HelloWorld *layer = HelloWorld::create();

    // add layer as a child to scene
    scene->addChild(layer);

    // return the scene
    return scene;
}

// on "init" you need to initialize your instance
bool HelloWorld::init()
{
    //////////////////////////////
    // 1. super init first
    if ( !CCLayer::init() )
    {
        return false;
    }

    /////////////////////////////
    // 2. add a menu item with "X" image, which is clicked to quit the program
    //    you may modify it.

    // add a "close" icon to exit the progress. it's an autorelease object
    CCMenuItemImage *pCloseItem = CCMenuItemImage::create(
                                        "CloseNormal.png",
                                        "CloseSelected.png",
                                        this,
                                        menu_selector(HelloWorld::menuCloseCallback) );
    pCloseItem->setPosition( ccp(CCDirector::sharedDirector()->getWinSize().width - 20, 20) );

    // create menu, it's an autorelease object
    CCMenu* pMenu = CCMenu::create(pCloseItem, NULL);
    pMenu->setPosition( CCPointZero );
    this->addChild(pMenu, 1);
    
    //输入框 CCTextFieldTTF
    
    CCTextFieldTTF *textFileds=CCTextFieldTTF::textFieldWithPlaceHolder("请输入用户名", "Helvetica", 20);
    textFileds->setPosition(ccp(100, 300));
    this->addChild(textFileds);
    //绑定接口
    textFileds->setDelegate(this);
    //开启输入
    textFileds->attachWithIME();
    //关闭输入
//    textFileds->detachWithIME();
    
 
    
    return true;
}

void HelloWorld::menuCloseCallback(CCObject* pSender)
{
    CCDirector::sharedDirector()->end();

#if (CC_TARGET_PLATFORM == CC_PLATFORM_IOS)
    exit(0);
#endif
}


//用户启动虚拟键盘时回调函数
 bool HelloWorld:: onTextFieldAttachWithIME(CCTextFieldTTF * sender)
{
    CCLOG("启动输入");
    return false;
//    return true;//不启动
}
//当用户关闭虚拟键盘时回调
 bool HelloWorld:: onTextFieldDetachWithIME(CCTextFieldTTF * sender)
{
    CCLOG("关闭输入");
    return false;
}
//当用户进行输入时回调函数
 bool HelloWorld:: onTextFieldInsertText(CCTextFieldTTF * sender, const char * text, int nLen)
{
    CCLOG("输入字符...");
    return false;
    
}
//当用户删除文字时回调函数
 bool HelloWorld:: onTextFieldDeleteBackward(CCTextFieldTTF * sender, const char * delText, int nLen)
{
    CCLOG("删除字符...");
    return false;
}