RT
看不太懂例子。
例子有这些操作，用cocostudio 完成的是哪一块部分？
// create model
// set model
// add default item
// insert default item
// add custom item
// insert custom item
// set item data
// remove last item
// remove item by index
// set all items layout gravity
给解释一下model 是什么，做什么的，例子里哪几个for循环不能写在一起么？
bool UIListViewExTest_Horizontal::init()
{
if (UIScene::init())
{
CCSize widgetSize = m_pWidget->getSize();
m_pDisplayValueLabel = UILabel::create();
m_pDisplayValueLabel->setText("Move by horizontal direction");
m_pDisplayValueLabel->setFontName("Marker Felt");
m_pDisplayValueLabel->setFontSize(32);
m_pDisplayValueLabel->setAnchorPoint(ccp(0.5f, -1));
m_pDisplayValueLabel->setPosition(ccp(widgetSize.width / 2.0f, widgetSize.height / 2.0f + m_pDisplayValueLabel->getContentSize().height * 1.5));
m_pUiLayer->addWidget(m_pDisplayValueLabel);
UILabel* alert = UILabel::create();
alert->setText("ListView horizontal");
alert->setFontName("Marker Felt");
alert->setFontSize(30);
alert->setColor(ccc3(159, 168, 176));
alert->setPosition(ccp(widgetSize.width / 2.0f, widgetSize.height / 2.0f - alert->getSize().height * 3.075));
m_pUiLayer->addWidget(alert);
Layout* background = dynamic_cast<Layout*>(m_pUiLayer->getWidgetByName("background_Panel"));
CCSize backgroundSize = background->getContentSize();
// create list view data
m_array = CCArray::create();
CC_SAFE_RETAIN(m_array);
for (int i = 0; i < 20; ++i)
{
CCString* ccstr = CCString::createWithFormat("listview_item_%d", i);
m_array->addObject(ccstr);
}
// Create the list view
UIListView* listView = UIListView::create();
// set list view direction
listView->setDirection(SCROLLVIEW_DIR_HORIZONTAL);
listView->setTouchEnabled(true);
listView->setBounceEnabled(true);
listView->setBackGroundImage("cocosgui/green_edit.png");
listView->setBackGroundImageScale9Enabled(true);
listView->setSize(CCSizeMake(240, 130));
listView->setPosition(ccp((widgetSize.width - backgroundSize.width) / 2 +
(backgroundSize.width - listView->getSize().width) / 2,
(widgetSize.height - backgroundSize.height) / 2 +
(backgroundSize.height - listView->getSize().height) / 2));
listView->addEventListenerListView(this, listvieweventselector(UIListViewExTest_Horizontal::selectedItemEvent));
m_pUiLayer->addWidget(listView);
// create model
UIButton* default_button = UIButton::create();
default_button->setName("TextButton");
default_button->setTouchEnabled(true);
default_button->loadTextures("cocosgui/backtotoppressed.png", "cocosgui/backtotopnormal.png", "");
Layout* default_item = Layout::create();
default_item->setTouchEnabled(true);
default_item->setSize(default_button->getSize());
default_button->setPosition(ccp(default_item->getSize().width / 2, default_item->getSize().height / 2));
default_item->addChild(default_button);
// set model
listView->setItemModel(default_item);
CCLOG("items_count:%d",listView->getItems()->count());
// add default item
int count = m_array->count();
// for (int i = 0; i < count / 4; ++i)
// {
// listView->pushBackDefaultItem();
// }
//CCLOG(“items_count:%d”,listView->getItems()->count());
// // insert default item
// for (int i = 0; i < count / 4; ++i)
// {
// listView->insertDefaultItem(0);
// }
// CCLOG(“items_count:%d”,listView->getItems()->count());
// add custom item
for (int i = 0; i < count /2; ++i)
{
UIButton* custom_button = UIButton::create();
custom_button->setName(“TextButton”);
custom_button->setTouchEnabled(true);
custom_button->loadTextures(“cocosgui/button.png”, “cocosgui/buttonHighlighted.png”, “”);
custom_button->setScale9Enabled(true);
custom_button->setSize(default_button->getSize());
Layout *custom_item = Layout::create();
custom_item->setSize(custom_button->getSize());
custom_button->setPosition(ccp(custom_item->getSize().width / 2, custom_item->getSize().height / 2));
custom_item->addChild(custom_button);
listView->pushBackCustomItem(custom_item);
}
// insert custom item
CCArray *items = listView->getItems();
int items_count = items->count();
CCLOG("items_count:%d",listView->getItems()->count());
for (int i = 0; i < count / 2; ++i)
{
UIButton* custom_button = UIButton::create();
custom_button->setName("TextButton");
custom_button->setTouchEnabled(true);
custom_button->loadTextures("cocosgui/button.png", "cocosgui/buttonHighlighted.png", "");
custom_button->setScale9Enabled(true);
custom_button->setSize(default_button->getSize());
Layout *custom_item = Layout::create();
custom_item->setSize(custom_button->getSize());
custom_button->setPosition(ccp(custom_item->getSize().width / 2, custom_item->getSize().height / 2));
custom_item->addChild(custom_button);
listView->insertCustomItem(custom_item, items_count);
}
// set item data
items_count = items->count();
CCLOG("items_count:%d",items_count);
for (int i = 0; i < items_count; ++i)
{
UIWidget *item = listView->getItem(i);
UIButton *button = static_cast<UIButton*>(item->getChildByName("TextButton"));
int index = listView->getIndex(item);
button->setTitleText(static_cast<CCString*>(m_array->objectAtIndex(index))->getCString());
}
// remove last item
listView->removeLastItem();
// remove item by index
items_count = items->count();
listView->removeItem(items_count - 1);
// set all items layout gravity
listView->setGravity(LISTVIEW_GRAVITY_CENTER_VERTICAL);
// set items margin
listView->setItemsMargin(2);
return true;
}
return false;
}
我把代码改成这样，只显示18个元素。为啥？？？！！！！！！！
原来例子是把listView的全部使用方法写在一起了～其实只用一个就ok 了～
我也看不懂例子，求教
ListVew中总是显示少一条，怎么解决
哎，改来改去，也不弄个教程出来，搞毛啊，研究了半天，连个滑动都弄不出来~