• cocos2d-x中CCTableView介绍


    在这篇文章中,我们将讲下CCTableView,顾名思义,CCTableView表试图,在ios里是tableview,android里是listview,都是差不多的意思,在cocos2dx中CCTableView继承自CCScrollview。OK,下面我们直接上代码:

    在头文件.h中:

     1 class HelloWorld : public cocos2d::CCLayer,public cocos2d::extension::CCTableViewDelegate,cocos2d::extension::CCTableViewDataSource
     2 {
     3 public:
     4     // Method 'init' in cocos2d-x returns bool, instead of 'id' in cocos2d-iphone (an object pointer)
     5     virtual bool init();
     6 
     7     // there's no 'id' in cpp, so we recommend to return the class instance pointer
     8     static cocos2d::CCScene* scene();
     9     
    10     // a selector callback
    11     void menuCloseCallback(CCObject* pSender);
    12 
    13     // preprocessor macro for "static create()" constructor ( node() deprecated )
    14     CREATE_FUNC(HelloWorld);
    15     
    16     
    17     
    18 public:
    19     
    20     //CCTableViewDelegate继承自CCScrollViewDelegate
    21     virtual void scrollViewDidScroll(cocos2d::extension::CCScrollView* view);
    22     
    23     virtual void scrollViewDidZoom(cocos2d::extension::CCScrollView* view);
    24     
    25     //点击哪个cell
    26     virtual void tableCellTouched(cocos2d::extension::CCTableView* table, cocos2d::extension::CCTableViewCell* cell);
    27     //每个cell的size
    28     virtual cocos2d::CCSize cellSizeForTable(cocos2d::extension::CCTableView *table);
    29     //生成cell
    30     virtual cocos2d::extension::CCTableViewCell* tableCellAtIndex(cocos2d::extension::CCTableView *table, unsigned int idx);
    31     //cell的数量
    32     virtual unsigned int numberOfCellsInTableView(cocos2d::extension::CCTableView *table);
    33     
    34     //按下去的时候,就是高亮显示,这里可以设置高亮状态
    35     virtual void tableCellHighlight(cocos2d::extension::CCTableView* table, cocos2d::extension::CCTableViewCell* cell);
    36     
    37     //松开的时候,取消高亮状态
    38     virtual void tableCellUnhighlight(cocos2d::extension::CCTableView* table, cocos2d::extension::CCTableViewCell* cell);
    39 
    40     
    41     
    42     void scrollBar(cocos2d::extension::CCTableView* table);
    43     
    44     
    45 };

    .cpp中:

     1 bool HelloWorld::init()
     2 {
     3     //////////////////////////////
     4     // 1. super init first
     5     if ( !CCLayer::init() )
     6     {
     7         return false;
     8     }
     9     
    10     
    11     CCSize visibSize=CCDirector::sharedDirector()->getVisibleSize();
    12     
    13     CCTableView *tableView=CCTableView::create(this, CCSizeMake(visibSize.width, visibSize.height));
    14     
    15     tableView->setDirection(kCCScrollViewDirectionVertical);
    16     
    17     tableView->setPosition(CCPointZero);
    18 
    19    // tableView->setAnchorPoint(ccp(0, 0));
    20     tableView->setDelegate(this);
    21     
    22     tableView->setVerticalFillOrder(kCCTableViewFillTopDown);
    23     
    24     this->addChild(tableView,1);
    25     
    26     tableView->reloadData();
    27     
    28     
    29     return true;
    30 }

    回调函数:

      1 unsigned int HelloWorld::numberOfCellsInTableView(CCTableView *table)
      2 {
      3 
      4     return 10;
      5     
      6 
      7 }
      8 
      9 CCTableViewCell* HelloWorld::tableCellAtIndex(CCTableView *table, unsigned int idx)
     10 {
     11 
     12     CCLOG("%d",idx);
     13     CCString *nameString=CCString::createWithFormat("icon_%d.png",idx+1);
     14 
     15     CCTableViewCell *cell = table->dequeueCell();
     16     
     17     if (!cell) {
     18         
     19         cell = new CCTableViewCell();
     20         
     21         cell->autorelease();
     22         CCSprite *bgSprite = CCSprite::create("cell.png");
     23         bgSprite->setAnchorPoint(CCPointZero);
     24         bgSprite->setPosition(CCPointZero);
     25         bgSprite->setTag(789);
     26         cell->addChild(bgSprite);
     27         
     28         
     29         CCSprite *iconSprite = CCSprite::create(nameString->getCString());
     30         iconSprite->setScale(0.6);
     31         iconSprite->setAnchorPoint(CCPointZero);
     32         iconSprite->setPosition(ccp(25, 10));
     33         iconSprite->setTag(123);
     34         cell->addChild(iconSprite);
     35         
     36         
     37         CCLabelTTF *pLabel = CCLabelTTF::create(nameString->getCString(), "Arial", 30.0);
     38         pLabel->setPosition(ccp(200, 10));
     39         pLabel->setTag(456);
     40         pLabel->setAnchorPoint(CCPointZero);
     41         cell->addChild(pLabel);
     42     }
     43     else
     44     {
     45         
     46         //创建了就不需要再重新创建了,不然你会发现图片跟文字都不对
     47         CCTexture2D *aTexture=CCTextureCache::sharedTextureCache()->addImage(nameString->getCString());
     48         
     49         CCSprite *pSprite=(CCSprite *)cell->getChildByTag(123);
     50         
     51         pSprite->setTexture(aTexture);
     52         
     53     
     54         CCLabelTTF *pLabel = (CCLabelTTF*)cell->getChildByTag(456);
     55         pLabel->setString(nameString->getCString());
     56     
     57     
     58         
     59        // this->scrollBar(table);
     60     
     61     }
     62     
     63     
     64     return cell;
     65 
     66 
     67 }
     68 
     69 
     70 CCSize HelloWorld::cellSizeForTable(CCTableView *table)
     71 {
     72     
     73     
     74     CCSize visibSize=CCDirector::sharedDirector()->getVisibleSize();
     75 
     76     return CCSizeMake(visibSize.width, 84);
     77     
     78     
     79 }
     80 
     81 void HelloWorld::tableCellHighlight(CCTableView *table, CCTableViewCell *cell)
     82 {
     83 
     84     CCLOG("wwww");
     85 
     86     CCTexture2D *aTexture=CCTextureCache::sharedTextureCache()->addImage("cell_selected.png");
     87     
     88     CCSprite *pSprite=(CCSprite *)cell->getChildByTag(789);
     89     
     90     pSprite->setTexture(aTexture);
     91 
     92 
     93 }
     94 
     95 void HelloWorld::tableCellUnhighlight(CCTableView *table, CCTableViewCell *cell)
     96 {
     97 
     98 
     99     CCLOG("dddd");
    100     
    101 
    102     CCTexture2D *aTexture=CCTextureCache::sharedTextureCache()->addImage("cell.png");
    103     
    104     CCSprite *pSprite=(CCSprite *)cell->getChildByTag(789);
    105     
    106     pSprite->setTexture(aTexture);
    107 
    108 
    109 
    110 }
    111 
    112 
    113 void HelloWorld::tableCellTouched(CCTableView *table, CCTableViewCell *cell)
    114 {
    115 
    116 
    117     CCLog("cell touched at index: %i", cell->getIdx());
    118 
    119 
    120 }

    OK,我们看下效果图:

    一个未选择状态,一个选中状态,注意,tableCellHighlight,tableCellUnhighlight,tableCellTouched的执行先后顺序为tableCellHighlight->tableCellUnhighlight->tableCellTouched。OK,就这么简单,貌似cctableview没有自带的滚动条,可能需要自己来实现,希望以后的版本中直接加入滚动条,这样会更方便~~~

    原文链接:http://blog.csdn.net/kuloveyouwei/article/details/9099361

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  • 原文地址:https://www.cnblogs.com/atong/p/3328886.html
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