UIListViewTest_ScrollToItem类 参考

#include <UIListViewTest.h>

类 UIListViewTest_ScrollToItem 继承关系图:

UIListViewTest_ScrollToItem 的协作图:

Protected 成员函数
virtual bool	init () override
virtual cocos2d::ui::ScrollView::Direction	getListViewDirection () const =0

Protected 属性
cocos2d::ui::ListView *	_listView
cocos2d::ui::Text *	_titleLabel
int	_nextIndex
Protected 属性 继承自 UIScene
cocos2d::Layer *	_uiLayer
cocos2d::ui::Layout *	_widget
cocos2d::ui::Text *	_sceneTitle
Protected 属性 继承自 TestCase
cocos2d::MenuItemImage *	_priorTestItem
cocos2d::MenuItemImage *	_restartTestItem
cocos2d::MenuItemImage *	_nextTestItem
cocos2d::Label *	_titleLabel
cocos2d::Label *	_subtitleLabel

额外继承的成员函数
Public 类型 继承自 TestCase
enum class	Type { ROBUSTNESS , UNIT , GRAPHICAL_STATIC , MANUAL }
Public 成员函数 继承自 UIScene
	UIScene ()
	~UIScene ()
virtual void	onEnter () override
Public 成员函数 继承自 TestCase
	TestCase ()
	~TestCase ()
virtual std::string	title () const
virtual std::string	subtitle () const
virtual Type	getTestType () const
virtual float	getDuration () const
virtual std::string	getExpectedOutput () const
virtual std::string	getActualOutput () const
virtual void	restartTestCallback (cocos2d::Ref *sender)
virtual void	nextTestCallback (cocos2d::Ref *sender)
virtual void	priorTestCallback (cocos2d::Ref *sender)
virtual void	onBackCallback (cocos2d::Ref *sender)
void	setTestSuite (TestSuite *testSuite)
TestSuite *	getTestSuite () const
float	getRunTime () const
void	setTestCaseName (const std::string &name)
std::string	getTestCaseName () const
const cocos2d::Label *	getSubtitleLable () const
const cocos2d::MenuItemImage *	getRestartTestItem () const
Public 属性 继承自 TestCase
CC_CONSTRUCTOR_ACCESS	__pad0__: virtual bool init() override

详细描述

在文件 UIListViewTest.h 第 124 行定义.

成员函数说明

getListViewDirection()

virtual cocos2d::ui::ScrollView::Direction UIListViewTest_ScrollToItem::getListViewDirection ( ) const

protectedpure virtual

在 UIListViewTest_ScrollToItemVertical , 以及 UIListViewTest_ScrollToItemHorizontal 内被实现.

被这些函数引用 init().

这是这个函数的调用关系图:

init()

bool UIListViewTest_ScrollToItem::init ( )

overrideprotectedvirtual

重载 UIScene .

在文件 UIListViewTest.cpp 第 652 行定义.

{
    if(!UIScene::init())
    {
        return false;
    }
    
    Size layerSize = _uiLayer->getContentSize();
    
    static int NUMBER_OF_ITEMS = 31;
    _nextIndex = 0;
    _titleLabel = Text::create("Scroll to item", "fonts/Marker Felt.ttf", 32);
    _titleLabel->setAnchorPoint(Vec2::ANCHOR_MIDDLE);
    _titleLabel->setPosition(Vec2(layerSize / 2) + Vec2(0.0f, _titleLabel->getContentSize().height * 3.15f));
    _uiLayer->addChild(_titleLabel, 3);
    
    // Create the list view
    _listView = ListView::create();
    _listView->setDirection(getListViewDirection());
    _listView->setBounceEnabled(true);
    _listView->setBackGroundImage("cocosui/green_edit.png");
    _listView->setBackGroundImageScale9Enabled(true);
    _listView->setContentSize(layerSize / 2);
    _listView->setScrollBarPositionFromCorner(Vec2(7, 7));
    _listView->setItemsMargin(2.0f);
    _listView->setAnchorPoint(Vec2::ANCHOR_MIDDLE);
    _listView->setPosition(layerSize / 2);
    _uiLayer->addChild(_listView);
    
    // Guide line for center align
    {
        DrawNode* pNode = DrawNode::create();
        Vec2 center = layerSize / 2;
        if(getListViewDirection() == ScrollView::Direction::HORIZONTAL)
        {
            float halfY = 110;
            pNode->drawLine(Vec2(center.x, center.y - halfY), Vec2(center.x, center.y + halfY), Color4F(0, 0, 0, 1));
        }
        else
        {
            float halfX = 150;
            pNode->drawLine(Vec2(center.x - halfX, center.y), Vec2(center.x + halfX, center.y), Color4F(0, 0, 0, 1));
        }
        pNode->setLineWidth(2);
        _uiLayer->addChild(pNode);
    }
    
    // Button
    auto pButton = Button::create("cocosui/backtotoppressed.png", "cocosui/backtotopnormal.png");
    pButton->setAnchorPoint(Vec2::ANCHOR_MIDDLE_LEFT);
    pButton->setScale(0.8f);
    pButton->setPosition(Vec2(layerSize / 2) + Vec2(120.0f, -60.0f));
    pButton->setTitleText(StringUtils::format("Go to '%d'", _nextIndex));
    pButton->addClickEventListener([this, pButton](Ref*) {
        _listView->scrollToItem(_nextIndex, Vec2::ANCHOR_MIDDLE, Vec2::ANCHOR_MIDDLE);
        _nextIndex = (_nextIndex + (NUMBER_OF_ITEMS / 2)) % NUMBER_OF_ITEMS;
        pButton->setTitleText(StringUtils::format("Go to '%d'", _nextIndex));
    });
    _uiLayer->addChild(pButton);
    
    // Add list items
    static const Size BUTTON_SIZE(50, 40);
    for (int i = 0; i < NUMBER_OF_ITEMS; ++i)
    {
        auto pButton = Button::create("cocosui/button.png", "cocosui/buttonHighlighted.png");
        pButton->setContentSize(BUTTON_SIZE);
        pButton->setScale9Enabled(true);
        pButton->setTitleText(StringUtils::format("Button-%d", i));
        _listView->pushBackCustomItem(pButton);
    }
    return true;
}

引用了 _listView, _nextIndex, _titleLabel, UIScene::_uiLayer, getListViewDirection() , 以及 UIScene::init().

函数调用图:

类成员变量说明

_listView

cocos2d::ui::ListView* UIListViewTest_ScrollToItem::_listView

protected

在文件 UIListViewTest.h 第 130 行定义.

被这些函数引用 init().

_nextIndex

int UIListViewTest_ScrollToItem::_nextIndex

protected

在文件 UIListViewTest.h 第 132 行定义.

被这些函数引用 init().

_titleLabel

cocos2d::ui::Text* UIListViewTest_ScrollToItem::_titleLabel

protected

在文件 UIListViewTest.h 第 131 行定义.

被这些函数引用 init().

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该类的文档由以下文件生成:

• /Users/yujizhu/Documents/Git/cocos2d-x-4.0/tests/cpp-tests/Classes/UITest/CocoStudioGUITest/UIListViewTest/UIListViewTest.h
• /Users/yujizhu/Documents/Git/cocos2d-x-4.0/tests/cpp-tests/Classes/UITest/CocoStudioGUITest/UIListViewTest/UIListViewTest.cpp