Cocos2d-x：静态方法实现android的Toast效果

在cocos2dx中静态方法实现android 的Toast效果，代码如下：

<span style="font-size:14px;">//
//  ShowToast.h
//  BananaCard
//
//  Created by Alostz on 16/4/8.
//  toast方法
//

#ifndef ShowToast_h
#define ShowToast_h

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

using namespace cocos2d;
using namespace std;

class ShowToast : public LayerColor
{
public:
    static void ShowText(Node* node,const string& msg,const float& time); //静态函数，方便类直接调用
    void removeToast(Node* node);
};

#endif /* ShowToast_h */
</span>

<span style="font-size:14px;">//
//  ShowToast.cpp
//  BananaCard
//
//  Created by Alostz on 16/4/8.
//
//

#include <ShowToast.h>

void ShowToast::ShowText(cocos2d::Node *node,const string &msg,const float &time){
    Size visibleSize = Director::getInstance()->getVisibleSize();
    Vec2 origin = Director::getInstance()->getVisibleOrigin();
    
    auto pLabel = Label::createWithSystemFont(msg.c_str(),"Arial",14);
    pLabel->setColor(Color3B::WHITE);
    pLabel->ignoreAnchorPointForPosition(false);
    pLabel->setAnchorPoint(Vec2::ANCHOR_MIDDLE);
    
    auto ly = LayerColor::create(Color4B(130,120,255));
    ly->ignoreAnchorPointForPosition(false);
    ly->setAnchorPoint(Vec2::ANCHOR_MIDDLE);
    ly->setContentSize(pLabel->getContentSize() + Size(20,15));
    
    node->addChild(ly);
    node->addChild(pLabel);
    ly->setPosition(Vec2(visibleSize.width/2,-pLabel->getContentSize().height));
    pLabel->setPosition(ly->getPosition());
    auto seq1 = Sequence::create(FadeIn::create(time/5),DelayTime::create(time/5*1.5),FadeOut::create(time/5*2.5),CallFuncN::create(ly,CC_CALLFUNCN_SELECTOR(ShowToast::removeToast)),nullptr);
    auto seq2 = Sequence::create(EaseSineIn::create(MoveBy::create(time/5,Vec2(0,200))),DelayTime::create(time/5*2),EaseSineOut::create(MoveBy::create(time/3,-200))),nullptr);
    auto spawn = Spawn::create(seq1,seq2,nullptr);
    auto action = Repeat::create(spawn,1);
    ly->setOpacity(0);
    pLabel->setOpacity(0);
    ly->runAction(action);
    pLabel->runAction(action->clone());
}

void ShowToast::removeToast(Node* node)
{
    log("node = %s",node->getDescription().c_str());
    this->removeFromParentAndCleanup(true);
}</span>

调用方法

#include "ShowToast.h"

ShowToast::ShowText(this,"使用能量",3.0f);

（编辑：李大同）

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