cocos2d-x3.1 下实现类似Android下ExpandListView的效果

标签：列表   c++   可扩展   expandlistview   cocos2dx   

在左Android开始有SDK提供ExpandListView的可扩展列表，而在iOS下有许多第三方做好的Demo，这里我是参照iOS下RATreeView这个第三方库实现的。

本文代码：需要在3.1以上版本运行。如果是用3.0版本需要将Vec2换成Piont

原文地址：http://blog.csdn.net/qqmcy/article/details/29559241

代码下载：http://download.csdn.net/detail/qqmcy/7469387

下面说下使用方法：

DJDataObject.h   数据模型类

//
//  DJDataObject.h
//  testthirdone
//
//  Created by 杜甲 on 14-6-7.
//
//

#ifndef __testthirdone__DJDataObject__
#define __testthirdone__DJDataObject__

#include "cocos2d.h"
USING_NS_CC;

class DJDataObject :public Ref
{
    
public:
    
    CREATE_FUNC(DJDataObject);
    virtual bool init();
    std::string name;
    std::vector<DJDataObject*> children;
    
    void initWithNameAndChildren(std::string name,std::vector<DJDataObject*> data_vec);
    
};

#endif /* defined(__testthirdone__DJDataObject__) */

//
//  DJDataObject.cpp
//  testthirdone
//
//  Created by 杜甲 on 14-6-7.
//
//

#include "DJDataObject.h"

bool DJDataObject::init()
{
    bool bRet = false;
    do {
        
        
        bRet = true;
    } while (0);
    
    return bRet;
}

void DJDataObject::initWithNameAndChildren(std::string name,std::vector<DJDataObject*> data_vec)
{
    this->name = name;
    this->children = data_vec;
    
}

ListViewTest.h  可扩展列表的使用类，将这个布局addChild到场景中就OK。

//
//  ListViewTest.h
//  testthirdone
//
//  Created by 杜甲 on 14-6-9.
//
//

#ifndef __testthirdone__ListViewTest__
#define __testthirdone__ListViewTest__

#include "cocos2d.h"
#include "ui/CocosGUI.h"
#include "DJDataObject.h"

USING_NS_CC;
using namespace ui;

class ListViewTest  : public ui::Layout
{
public:
    
    CREATE_FUNC(ListViewTest);
    virtual bool init();
    
    std::vector<DJDataObject*> data_vec;
    
    
};


#endif /* defined(__testthirdone__ListViewTest__) */

//
//  ListViewTest.cpp
//  testthirdone
//
//  Created by 杜甲 on 14-6-9.
//
//

#include "ListViewTest.h"
#include "DJTreeNode.h"
#include "DJTreeNodeInfo.h"
#include "DJListView.h"


bool ListViewTest::init()
{
    bool bRet = false;
    do {
        CC_BREAK_IF(!ui::Layout::init());

        
        
        
        
        setBackGroundColorType(ui::Layout::BackGroundColorType::SOLID);
        setBackGroundColor(Color3B(18, 23, 222));
        
        
        
        std::vector<DJDataObject*>temp1;
        std::vector<DJDataObject*>temp2;
        std::vector<DJDataObject*>temp3;
        std::vector<DJDataObject*>temp4;
        
        DJDataObject* data7 = DJDataObject::create();
        data7->retain();
        //initWithNameAndChildren 参数1：当前数据内容， 参数2 ：子集
        data7->initWithNameAndChildren("数据1-1-1", temp4);
        temp1.push_back(data7);
        
        
        DJDataObject* data3 = DJDataObject::create();
        data3->retain();
        data3->initWithNameAndChildren("数据1-1", temp1);
        
        
        
        DJDataObject* data4 = DJDataObject::create();
        data4->retain();
        data4->initWithNameAndChildren("数据1-2", temp4);
        
        
        for (int i = 0; i < 7; i++)
        {
            DJDataObject* data6 = DJDataObject::create();
            data6->retain();
            data6->initWithNameAndChildren("数据h", temp3);
            temp2.push_back(data6);
        }
        
        
        
        DJDataObject* data1 = DJDataObject::create();
        data1->retain();
        data1->initWithNameAndChildren("数据r", temp2);
        
        
        DJDataObject* data = DJDataObject::create();
        data->retain();
        std::vector<DJDataObject*>temp;
        temp.push_back(data3);
        temp.push_back(data4);
        
        data->initWithNameAndChildren("数据1", temp);
        
        
        
        data_vec.push_back(data);
        data_vec.push_back(data1);

        
        
        auto winSize = Director::getInstance()->getWinSize();
        
        auto listView1 = DJListView::create();
        listView1->setSize(winSize);
        listView1->addExpandedListView(data_vec);
        addChild(listView1);
        
        
        bRet = true;
    } while (0);
    
    return bRet;
}

实现效果：

之后我会把下面的实现传上来，现在网络有限制不让传。

这里也贴出实现类

DJTreeNodeInfo.h 节点信息类

//
//  DJTreeNodeInfo.h
//  testthirdone
//
//  Created by 杜甲 on 14-6-6.
//
//

#ifndef __testthirdone__DJTreeNodeInfo__
#define __testthirdone__DJTreeNodeInfo__

#include "cocos2d.h"
USING_NS_CC;
class DJTreeNode;


class DJTreeNodeInfo :public Ref
{
    
public:
    CREATE_FUNC(DJTreeNodeInfo);
    virtual bool init();
    
    bool expanded;
    
    int treeDepthLevel;
    int siblingsNumber;
    int positionInsiblings;
    
    DJTreeNodeInfo* parent;
    
    DJTreeNode* parentTreeNode;
    
    std::vector<DJTreeNodeInfo*> children;
    
    void* item;
    std::vector<DJTreeNode*> childrenTreeNodes;
   
    void initWithParent(DJTreeNode* parent1 , std::vector<DJTreeNode*> children1);
    
    
    DJTreeNodeInfo* getParent();
    std::vector<DJTreeNodeInfo*> getChildren();
    
};

#endif /* defined(__testthirdone__DJTreeNodeInfo__) */

//
//  DJTreeNodeInfo.cpp
//  testthirdone
//
//  Created by 杜甲 on 14-6-6.
//
//

#include "DJTreeNodeInfo.h"
#include "DJTreeNode.h"

bool DJTreeNodeInfo::init()
{
    bool bRet = false;
    do {
        
        
        bRet = true;
    } while (0);
    
    return bRet;
}

void DJTreeNodeInfo::initWithParent(DJTreeNode *parent1, std::vector<DJTreeNode *> children1)
{
    this->parentTreeNode = parent1;
    this->childrenTreeNodes = children1;
}

DJTreeNodeInfo* DJTreeNodeInfo::getParent()
{
    if (this->parent == nullptr)
    {
        this->parent = this->parentTreeNode->treeNodeInfo1();
        
    }
    return nullptr;
}

std::vector<DJTreeNodeInfo*> DJTreeNodeInfo::getChildren()
{
    if (this->children.size() == 0 )
    {
        std::vector<DJTreeNodeInfo*> treeNodesInfos;
        for (int i = 0; i < this->childrenTreeNodes.size(); i++) {
            DJTreeNode* treeNode = this->childrenTreeNodes.at(i);
            treeNodesInfos.push_back(treeNode->treeNodeInfo1());
            this->children = treeNodesInfos;
        }
    }
    return this->children;
}

//
//  DJTreeNode.h
//  testthirdone
//
//  Created by 杜甲 on 14-6-6.
//
//

#ifndef __testthirdone__DJTreeNode__
#define __testthirdone__DJTreeNode__

#include "cocos2d.h"
USING_NS_CC;

class DJTreeNodeInfo;

class DJTreeNode :public Ref{
    
public:
    CREATE_FUNC(DJTreeNode);
    virtual bool init();
    
    
    bool expanded;
    bool visible;
    DJTreeNode* parent;
    std::vector<DJTreeNode*> children;
    DJTreeNodeInfo* treeNodeInfo;
    DJTreeNodeInfo* treeNodeInfo1();
    
    
    void* item;
    
    int treeDepthLevel;
    
    void initWithItem(void* item , DJTreeNode* parent , bool expanded);
    
    void addChildNode(DJTreeNode* child);
    
    std::vector<DJTreeNode*> visibleDescendants();
    int numberOfVisibleDescendants();
    
    void collapse();
    void expand();
    
    int startIndex();
    int endIndex();
    
    bool isVisible();
    
    int treeDepthLevel1();
    
    
    
    
};

#endif /* defined(__testthirdone__DJTreeNode__) */

//
//  DJTreeNode.cpp
//  testthirdone
//
//  Created by 杜甲 on 14-6-6.
//
//

#include "DJTreeNode.h"
#include "DJTreeNodeInfo.h"


typedef enum DJTreeDepthLevel {
    DJTreeDepthLevelNotInitialized
} DJTreeDepthLevel;


bool DJTreeNode::init()
{
    bool bRet = false;
    do {
        
        
        bRet = true;
    } while (0);
    
    return bRet;
}




void DJTreeNode::initWithItem(void *item, DJTreeNode *parent, bool expanded)
{
    this->treeDepthLevel = DJTreeDepthLevelNotInitialized;
    this->item = item;
    this->parent = parent;
    this->expanded = expanded;
    
}

bool DJTreeNode::isVisible()
{
    return this->parent->expanded || this->parent == nullptr;
}

void DJTreeNode::addChildNode(DJTreeNode *child)
{
//    if (this->children.size() > 0) {
//        this->children.clear();
//    }
    std::vector<DJTreeNode*> children1(this->children);
    
    children1.push_back(child);
    this->children = children1;
}

int DJTreeNode::numberOfVisibleDescendants()
{
    return (int)visibleDescendants().size();
}

std::vector<DJTreeNode*> DJTreeNode::visibleDescendants()
{
    std::vector<DJTreeNode*> visibleDescendants;
    
    try {
        if (expanded)
        {
            
            if (this->children.size() > 0)
            {
                //            log("children.size() = %lu",children.size());
                for (int i = 0; i < this->children.size(); i++)
                {
                    // log("i = %d",i);
                    DJTreeNode* treeNode =  children.at(i);
                    
                    
                    
                    visibleDescendants.push_back(treeNode);
                    if (treeNode->expanded)
                    {
                        std::vector<DJTreeNode*> tree_vec = treeNode->visibleDescendants();
                        for (int i = 0; i < tree_vec.size(); i++)
                        {
                            
                            visibleDescendants.push_back(tree_vec.at(i));
                        }
                        
                    }
                    
                }
                
            }
            
            
        }

        
    } catch (std::out_of_range & exc) {
        log("exc.what() = %s",exc.what());
        
    }
    
    
   // log("visibleDescendants = %zd",visibleDescendants.size());
     return visibleDescendants;
}

void DJTreeNode::expand()
{
    this->expanded = true;
    if (this->parent != nullptr) {
        this->parent->expand();
    }
    
}

void DJTreeNode::collapse()
{
    this->expanded = false;
    for (int i = 0; i < children.size(); i++)
    {
        DJTreeNode* treeNode = children.at(i);
        treeNode->collapse();
    }
}

int DJTreeNode::startIndex()
{
    int startIndex;
    if (this->parent->parent == nullptr) {
        startIndex = 0;
    }else{
        startIndex = this->parent->startIndex() + 1;
    }
    
    for (int i = 0 ; i < this->parent->children.size() ; i++)
    {
        DJTreeNode* treeNode = this->parent->children.at(i);
        
        if (treeNode != this) {
            startIndex += 1;
            if (treeNode->expanded) {
                startIndex += treeNode->numberOfVisibleDescendants();
            }
        }
        else
        {
            break;
        }
        
    }
    return startIndex;
}

int DJTreeNode::endIndex()
{
    int startIndex = this->startIndex();
    return startIndex + numberOfVisibleDescendants();
    
}

DJTreeNodeInfo* DJTreeNode::treeNodeInfo1()
{
    if (this->treeNodeInfo == nullptr)
    {
        DJTreeNodeInfo* treeNodeInfo = DJTreeNodeInfo::create();
        treeNodeInfo->initWithParent(this->parent, this->children);
        treeNodeInfo->treeDepthLevel = treeDepthLevel1();
        treeNodeInfo->siblingsNumber = (int)this->parent->children.size();
        
        for (int i = 0; i < this->parent->children.size(); i++)
        {
            
            if (this->parent->children.at(i) == this)
            {
                treeNodeInfo->positionInsiblings = i;
            }
        }
        this->treeNodeInfo = treeNodeInfo;
        
    }
    this->treeNodeInfo->item = this->item;
    this->treeNodeInfo->expanded = this->expanded;
    return this->treeNodeInfo;
}

int DJTreeNode::treeDepthLevel1()
{
    if (this->treeDepthLevel == DJTreeDepthLevelNotInitialized)
    {
        int treeDepthLevel = 0;
        DJTreeNode* current = this->parent->parent;
        while (current != nullptr) {
            treeDepthLevel++;
            current = current->parent;
        }
        this->treeDepthLevel = treeDepthLevel;
        
    }
    return this->treeDepthLevel;
}

DJTreeNodeCollectionController.h  节点控制类

//
//  DJTreeNodeCollectionController.h
//  testthirdone
//
//  Created by 杜甲 on 14-6-6.
//
//

#ifndef __testthirdone__DJTreeNodeCollectionController__
#define __testthirdone__DJTreeNodeCollectionController__

#include "cocos2d.h"
USING_NS_CC;

class DJTreeNode;
class DJTreeNodeInfo;


class DJTreeNodeCollectionController : public Ref
{
    
public:
    
    CREATE_FUNC(DJTreeNodeCollectionController);
    virtual bool init();
    
    
    DJTreeNode* root;
    
    void addTreeNode(DJTreeNode* treeNode);
    
    DJTreeNode* treeNodeForIndex(int index);
    
    DJTreeNode* treeNodeForIndex(int index , DJTreeNode* currentTreeNode);
    
    int indexForItem(void* item);
    
    int indexForItem(void* item , DJTreeNode* currentTreeNode);
    
    
};

#endif /* defined(__testthirdone__DJTreeNodeCollectionController__) */

//
//  DJTreeNodeCollectionController.cpp
//  testthirdone
//
//  Created by 杜甲 on 14-6-6.
//
//

#include "DJTreeNodeCollectionController.h"
#include "DJTreeNode.h"

bool DJTreeNodeCollectionController::init()
{
    bool bRet = false;
    do {
        root = DJTreeNode::create();
        root->retain();
        root->initWithItem(nullptr, nullptr, true);
        
        bRet = true;
    } while (0);
    
    return bRet;
    
}

void DJTreeNodeCollectionController::addTreeNode(DJTreeNode *treeNode)
{
    if (treeNode->parent == nullptr)
    {
        this->root->addChildNode(treeNode);
    
        treeNode->parent = this->root;
    }else
    {
        treeNode->parent->addChildNode(treeNode);
        if (treeNode->expanded)
        {
            treeNode->expand();
        }
    }
}

DJTreeNode* DJTreeNodeCollectionController::treeNodeForIndex(int index)
{
    if (index < 0)
    {
        return nullptr;
    }
    
    return treeNodeForIndex(index, this->root);
}

DJTreeNode* DJTreeNodeCollectionController::treeNodeForIndex(int index, DJTreeNode *currentTreeNode)
{
    for (int i = 0; i < currentTreeNode->children.size(); i++)
    {
        DJTreeNode* treeNode = currentTreeNode->children.at(i);
        if (treeNode->startIndex() == index)
        {
            return treeNode;
        }else if (index <= treeNode->endIndex())
        {
            return treeNodeForIndex(index, treeNode);
        }
    }
    return nullptr;
}

int DJTreeNodeCollectionController::indexForItem(void *item)
{
    return indexForItem(item, this->root);
}


int DJTreeNodeCollectionController::indexForItem(void *item, DJTreeNode *currentTreeNode)
{
    std::vector<DJTreeNode*> array = this->root->visibleDescendants();
    for (int i = 0; i < array.size(); i++)
    {
        DJTreeNode* treeNode = array.at(i);
        if (treeNode->item == item)
        {
            return i;
    }
    }
    
    return -1;
}

DayReportListAdapter.h  

//
//  DayReportListAdapter.h
//
//
//  Created by 杜甲 on 14-6-4.
//
//

#ifndef __ht_mobile_cpp__DayReportListAdapter__
#define __ht_mobile_cpp__DayReportListAdapter__

#include "cocos2d.h"
#include "../../cocos2d/cocos/ui/CocosGUI.h"

USING_NS_CC;

class DayReportListAdapter :public ui::Layout
{
    
public:
    CREATE_FUNC(DayReportListAdapter);
    virtual bool init();
    ui::Text* organName;
    
    ui::Text* prem_day;
    
    ui::Text* prem_month;
};
#endif /* defined(__ht_mobile_cpp__DayReportListAdapter__) */

//
//  DayReportListAdapter.cpp
//  
//
//  Created by 杜甲 on 14-6-4.
//
//

#include "DayReportListAdapter.h"
bool DayReportListAdapter::init()
{
    bool bRet = false;
    do {
        CC_BREAK_IF(!ui::Layout::init());
        setLayoutType(cocos2d::ui::Layout::Type::RELATIVE);
        float topLength = 30;
        
        organName = ui::Text::create();
        organName->setFontSize(30);
        organName->setColor(Color3B::BLACK);
        addChild(organName);
        
        auto rp_organName = ui::RelativeLayoutParameter::create();
        rp_organName->setMargin(ui::Margin(30,topLength,0,0));
        rp_organName->setAlign(cocos2d::ui::RelativeLayoutParameter::RelativeAlign::PARENT_TOP_LEFT);
        organName->setLayoutParameter(rp_organName);
        
        
        
        
        prem_month = ui::Text::create();
        prem_month->setFontSize(30);
        prem_month->setColor(Color3B::BLACK);
        addChild(prem_month);
        
        auto rp_prem_month = ui::RelativeLayoutParameter::create();
        rp_prem_month->setAlign(cocos2d::ui::RelativeLayoutParameter::RelativeAlign::PARENT_TOP_RIGHT);
        rp_prem_month->setRelativeName("rp_prem_month");
        rp_prem_month->setMargin(ui::Margin(0,topLength,50,0));
        
        prem_month->setLayoutParameter(rp_prem_month);
        
        
        
        prem_day = ui::Text::create();
        prem_day->setFontSize(30);
        
        
        prem_day->setColor(Color3B::BLACK);
        addChild(prem_day);
        
        auto rp_prem_day = ui::RelativeLayoutParameter::create();
        rp_prem_day->setAlign(cocos2d::ui::RelativeLayoutParameter::RelativeAlign::PARENT_TOP_CENTER_HORIZONTAL);
      //  rp_prem_day->setRelativeToWidgetName("rp_prem_month");
        rp_prem_day->setMargin(ui::Margin(30,topLength,0,0));
        prem_day->setLayoutParameter(rp_prem_day);
        
        
        bRet = true;
    } while (0);
    return bRet;

    
}

//
//  DJListView.h
//  testthirdone
//
//  Created by 杜甲 on 14-6-8.
//
//

#ifndef __testthirdone__DJListView__
#define __testthirdone__DJListView__

#include "cocos2d.h"
#include "ui/CocosGUI.h"
#include "DJDataObject.h"
#include "DJExpandListView.h"

USING_NS_CC;
using namespace ui;

class DJListView :public ui::Layout
{
    
    
public:
    CREATE_FUNC(DJListView);
    
    virtual bool init();
    
    void selectedItemEvent(Ref *pSender, cocos2d::ui::ListView::EventType type);
    
    Size winSize;
    
    
    std::vector<DJDataObject*> data_vec;
    void addExpandedListView( std::vector<DJDataObject*> data_vec);
    
    
private:
    
    ui::ListView* listView;
    
    ssize_t numberOfCellsInListView(void *item);
    
    void* treeViewItem( int index, void *item);
    
    DJTreeNodeCollectionController* treeNodeCollectionController;
    std::vector<void*> childrenForItem(void *item);
    void setupTreeStructure();
    void setupTreeStructureWithParentNode(DJTreeNode* parentTreeNode ,int treeDepthLevel);
    
    void collapseCellForTreeNode(cocos2d::Ref *pSender,DJTreeNode* treeNode);
    DJTreeNode* treeNodeForIndex(int index);
    void expandCellForTreeNode(cocos2d::Ref *pSender , DJTreeNode* treeNode);
    
    
};


#endif /* defined(__testthirdone__DJListView__) */

//
//  DJListView.cpp
//  testthirdone
//
//  Created by 杜甲 on 14-6-8.
//
//

#include "DJListView.h"
#include "DayReportListAdapter.h"
#include "DJTreeNode.h"
#include "DJTreeNodeInfo.h"

#include "DJTreeNodeCollectionController.h"

bool DJListView::init()
{
    bool bRet = false;
    
    do {
        CC_BREAK_IF(!ui::Layout::init());
        
        setLayoutType(cocos2d::ui::Layout::Type::RELATIVE);
        winSize = Director::getInstance()->getWinSize();
    
        bRet = true;
    } while (0);
    return bRet;
}

void DJListView::addExpandedListView( std::vector<DJDataObject*> data_vec1)
{
    data_vec = data_vec1;
    
    listView = ui::ListView::create();
    
    listView->setDirection(cocos2d::ui::ScrollView::Direction::VERTICAL);
    listView->setTouchEnabled(true);
    listView->setBounceEnabled(true);
    listView->setSize(Size(winSize.width,winSize.height - 100));
    listView->setBackGroundColorType(ui::Layout::BackGroundColorType::SOLID);
    listView->setBackGroundColor(Color3B::WHITE);
    
    listView->addEventListener(CC_CALLBACK_2(DJListView::selectedItemEvent, this));
    
    
    auto rp_listView = ui::RelativeLayoutParameter::create();
    rp_listView->setAlign(cocos2d::ui::RelativeLayoutParameter::RelativeAlign::PARENT_BOTTOM_CENTER_HORIZONTAL);
    listView->setLayoutParameter(rp_listView);

    
    
    setupTreeStructure();
    
    // set model
    
    
    for (int i = 0; i < treeNodeCollectionController->root->numberOfVisibleDescendants(); i++)
    {
        DJDataObject* dobject = static_cast<DJDataObject*>(treeNodeForIndex(i)->item) ;
        
        
        auto tableLayout1 = DayReportListAdapter::create();
        tableLayout1->setSize(Size(winSize.width, 1));
        tableLayout1->setBackGroundColorType(ui::Layout::BackGroundColorType::SOLID);
        tableLayout1->setBackGroundColor(Color3B(189, 203, 222));
        listView->pushBackCustomItem(tableLayout1);
        tableLayout1->organName->setString(dobject->name);
        tableLayout1->prem_day->setString(StringUtils::format("%d",i));
        tableLayout1->prem_month->setString("fffff");
    }
    
    
    
    
    auto tableLayout2 = DayReportListAdapter::create();
    tableLayout2->setSize(Size(winSize.width, 1));
    tableLayout2->setBackGroundColorType(ui::Layout::BackGroundColorType::SOLID);
    tableLayout2->setBackGroundColor(Color3B(189, 203, 222));
    listView->pushBackCustomItem(tableLayout2);
    
    auto layout21 = ui::Layout::create();
    layout21->setLayoutType(cocos2d::ui::Layout::Type::RELATIVE);
    layout21->setSize(winSize);
    layout21->addChild(listView);
    layout21->setBackGroundColorType(ui::Layout::BackGroundColorType::SOLID);
    layout21->setBackGroundColor(Color3B(89, 203, 222));
    
    
    
    
    
    
    auto tableLayout1 = ui::Layout::create();
    tableLayout1->setSize(winSize);
    tableLayout1->setBackGroundColorType(ui::Layout::BackGroundColorType::SOLID);
    tableLayout1->setBackGroundColor(Color3B(189, 203, 222));
    //listView->pushBackCustomItem(tableLayout1);
    
    
    
    listView->setGravity(cocos2d::ui::ListView::Gravity::CENTER_VERTICAL);
    listView->setItemsMargin(100.0f);
    
    
    auto page = ui::PageView::create();
    page->setLayoutType(cocos2d::ui::Layout::Type::RELATIVE);
    page->setSize(winSize);
    page->addPage(layout21);
    
    page->addPage(tableLayout1);
    addChild(page);
    
    auto rp_page = ui::RelativeLayoutParameter::create();
    rp_page->setAlign(cocos2d::ui::RelativeLayoutParameter::RelativeAlign::PARENT_BOTTOM_CENTER_HORIZONTAL);
    page->setLayoutParameter(rp_page);
    
    
}





void DJListView::selectedItemEvent(cocos2d::Ref *pSender, cocos2d::ui::ListView::EventType type)
{
    
    switch (type) {
        case ui::ListView::EventType::ON_SELECTED_ITEM_END:
        {
            ui::ListView* listView = static_cast<ui::ListView*>(pSender);
            
            DJTreeNode* treeNode = treeNodeForIndex((int)listView->getCurSelectedIndex());
            
            if (treeNode->children.size() == 0)
            {
                return;
                
            }
            
 
            if (treeNode->expanded) {
                 collapseCellForTreeNode(pSender, treeNode);
            }else{
                log("treeNode->expanded = %d",treeNode->expanded);
                expandCellForTreeNode(pSender, treeNode);
            }
            
           
            listView->refreshView();
        }
            break;
            
        default:
            break;
    }
    
    
}

ssize_t DJListView::numberOfCellsInListView(void *item)
{
    if (item == nullptr) {
        log("%zd",data_vec.size());
        
        return data_vec.size();
    }
    
    DJDataObject* data =  static_cast<DJDataObject*>(item);
    return data->children.size();
    
}


void* DJListView::treeViewItem( int index, void *item)
{
    DJDataObject* data = static_cast<DJDataObject*>(item);
    if (item == nullptr) {
        return data_vec.at( index );
    }
    return data->children.at( index );
    
}


std::vector<void*> DJListView::childrenForItem(void *item)
{
    std::vector<void*> children ;
    ssize_t numberOfChildren = numberOfCellsInListView(item);
    
    for (int i = 0; i< numberOfChildren ; i++)
    {
        children.push_back(treeViewItem(i, item));
        
    }
    
    return children;
}

DJTreeNode* DJListView::treeNodeForIndex(int index)
{
    return treeNodeCollectionController->treeNodeForIndex(index);
}

void DJListView::setupTreeStructure()
{
    treeNodeCollectionController = DJTreeNodeCollectionController::create();
    treeNodeCollectionController->retain();
    setupTreeStructureWithParentNode(nullptr, 0);
}

void DJListView::setupTreeStructureWithParentNode(DJTreeNode* parentTreeNode ,int treeDepthLevel)
{
    std::vector<void*> children;
    

    
    if (parentTreeNode == nullptr)
    {
        children = childrenForItem(nullptr);
    }else
    {
        children  = childrenForItem(parentTreeNode->item);
    }
        log("setupTreeStructureWithParentNode 循环前");
    
    try {
        for (int i = 0; i < children.size(); i++)
        {
            log(" i = %d",i);
            
            void* item = children.at(i);
            DJTreeNode* treeNode = DJTreeNode::create();
            treeNode->retain();
            treeNode->initWithItem(item, parentTreeNode, false);
            setupTreeStructureWithParentNode(treeNode, treeDepthLevel + 1);
            treeNodeCollectionController->addTreeNode(treeNode);
        }
    } catch (std::out_of_range & exc)
    {
        log("exc.what() = %s",exc.what());
    }
    

}


void DJListView::collapseCellForTreeNode(cocos2d::Ref *pSender,DJTreeNode* treeNode)
{
    log("treeNode->startIndex() = %d , treeNode->endIndex() = %d",treeNode->startIndex(),treeNode->endIndex());
    
    for (int index = treeNode->startIndex() + 1; index <= treeNode->endIndex(); index++)
    {
         ui::ListView* listView1 = static_cast<ui::ListView*>(pSender);
        listView1->removeItem(treeNode->startIndex() + 1);
        
        
    }
    treeNode->collapse();
    
}


void DJListView::expandCellForTreeNode(cocos2d::Ref *pSender , DJTreeNode* treeNode)
{
     log("treeNode->startIndex() = %d , treeNode->endIndex() = %d",treeNode->startIndex(),treeNode->endIndex());
    treeNode->expand();
//    ui::ListView* listView1 = static_cast<ui::ListView*>(pSender);
//    listView1->insertDefaultItem(0);
    for (int index = treeNode->startIndex() + 1; index <= treeNode->endIndex();index++ )
    {
        
        DJDataObject* dobject = static_cast<DJDataObject*>(treeNodeForIndex(index)->item) ;
            
            
            auto tableLayout1 = DayReportListAdapter::create();
            tableLayout1->setSize(Size(winSize.width, 1));
            tableLayout1->setBackGroundColorType(ui::Layout::BackGroundColorType::SOLID);
            tableLayout1->setBackGroundColor(Color3B(189, 203, 222));
            listView->insertCustomItem(tableLayout1, index);
        //pushBackCustomItem(tableLayout1);
           tableLayout1->organName->setString(dobject->name);
            tableLayout1->prem_day->setString(StringUtils::format("%d",index));
            tableLayout1->prem_month->setString("fffff");
        
    }
    

}

cocos2d-x3.1 下实现类似Android下ExpandListView的效果,布布扣,bubuko.com

cocos2d-x3.1 下实现类似Android下ExpandListView的效果

标签：列表   c++   可扩展   expandlistview   cocos2dx   

原文地址：http://blog.csdn.net/qqmcy/article/details/29559241