mirror of https://github.com/axmolengine/axmol.git
119 lines
3.4 KiB
C++
119 lines
3.4 KiB
C++
#include "PullToRefreshScene.h"
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USING_NS_AX;
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class ScrollPaneHeader : public GComponent
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{
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public:
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CREATE_FUNC(ScrollPaneHeader);
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bool isReadyToRefresh()
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{
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return _c1->getSelectedIndex() == 1;
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}
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void setRefreshStatus(int value);
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protected:
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virtual void onConstruct();
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private:
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void onSizeChanged(EventContext*);
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GController* _c1;
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};
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void ScrollPaneHeader::onConstruct()
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{
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_c1 = getController("c1");
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addEventListener(UIEventType::SizeChange, AX_CALLBACK_1(ScrollPaneHeader::onSizeChanged, this));
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}
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void ScrollPaneHeader::onSizeChanged(EventContext*)
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{
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if (_c1->getSelectedIndex() == 2 || _c1->getSelectedIndex() == 3)
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return;
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if (getHeight() > sourceSize.height)
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_c1->setSelectedIndex(1);
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else
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_c1->setSelectedIndex(0);
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}
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void ScrollPaneHeader::setRefreshStatus(int value)
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{
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_c1->setSelectedIndex(value);
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}
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void PullToRefreshScene::continueInit()
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{
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UIPackage::addPackage("UI/PullToRefresh");
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UIObjectFactory::setPackageItemExtension("ui://PullToRefresh/Header", []() {return ScrollPaneHeader::create(); });
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_view = UIPackage::createObject("PullToRefresh", "Main")->as<GComponent>();
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_groot->addChild(_view);
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_list1 = _view->getChild("list1")->as<GList>();
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_list1->itemRenderer = AX_CALLBACK_2(PullToRefreshScene::renderListItem1, this);
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_list1->setVirtual();
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_list1->setNumItems(1);
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_list1->addEventListener(UIEventType::PullDownRelease, AX_CALLBACK_1(PullToRefreshScene::onPullDownToRefresh, this));
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_list2 = _view->getChild("list2")->as<GList>();
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_list2->itemRenderer = AX_CALLBACK_2(PullToRefreshScene::renderListItem2, this);
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_list2->setVirtual();
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_list2->setNumItems(1);
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_list2->addEventListener(UIEventType::PullUpRelease, AX_CALLBACK_1(PullToRefreshScene::onPullUpToRefresh, this));
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}
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void PullToRefreshScene::renderListItem1(int index, GObject* obj)
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{
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obj->setText("Item " + std::to_string(_list1->getNumItems() - index - 1));
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}
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void PullToRefreshScene::renderListItem2(int index, GObject* obj)
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{
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obj->setText("Item " + std::to_string(index));
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}
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void PullToRefreshScene::onPullDownToRefresh(EventContext*)
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{
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ScrollPaneHeader* header = dynamic_cast<ScrollPaneHeader*>(_list1->getScrollPane()->getHeader());
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if (header->isReadyToRefresh())
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{
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header->setRefreshStatus(2);
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_list1->getScrollPane()->lockHeader(header->sourceSize.height);
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//Simulate a async resquest
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this->scheduleOnce([header, this](float)
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{
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_list1->setNumItems(_list1->getNumItems() + 5);
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//Refresh completed
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header->setRefreshStatus(3);
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_list1->getScrollPane()->lockHeader(35);
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this->scheduleOnce([header, this](float)
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{
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header->setRefreshStatus(0);
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_list1->getScrollPane()->lockHeader(0);
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}, 2, "pull_down2");
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}, 2, "pull_down1");
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}
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}
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void PullToRefreshScene::onPullUpToRefresh(EventContext*)
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{
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GComponent* footer = dynamic_cast<GComponent*>(_list2->getScrollPane()->getFooter());
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footer->getController("c1")->setSelectedIndex(1);
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_list2->getScrollPane()->lockFooter(footer->sourceSize.height);
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//Simulate a async resquest
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this->scheduleOnce([footer, this](float)
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{
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_list2->setNumItems(_list2->getNumItems() + 5);
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//Refresh completed
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footer->getController("c1")->setSelectedIndex(0);
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_list2->getScrollPane()->lockFooter(0);
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}, 2, "pull_up");
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} |