6
我有這個iOS的cocos 2dx遊戲，我想將它移植到Android。我知道我必須在android.mk中編寫所有的類，而且我也是。但我仍然有這個問題未定義引用'cocos2d :: UserDefault'
Classes/scenes/itemshop/ItemShop.cpp:144: error: undefined reference to 'cocos2d::UserDefault::GetValueForKeyPlist
這僅僅是可怕的，我不明白爲什麼我有這樣的錯誤，我有UserDefault類android.mk
編輯聲明： 這裏是一些代碼：
CCUserDefault.h
/****************************************************************************
Copyright (c) 2010-2012 cocos2d-x.org
Copyright (c) 2013-2014 Chukong Technologies Inc.
http://www.cocos2d-x.org
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
****************************************************************************/
#ifndef __SUPPORT_CCUSERDEFAULT_H__
#define __SUPPORT_CCUSERDEFAULT_H__
#include "base/CCPlatformMacros.h"
#include <string>
#include "base/CCData.h"
NS_CC_BEGIN
/**
* @addtogroup data_storage
* @{
*/
/**
* UserDefault acts as a tiny database. You can save and get base type values by it.
* For example, setBoolForKey("played", true) will add a bool value true into the database.
* Its key is "played". You can get the value of the key by getBoolForKey("played").
*
* It supports the following base types:
* bool, int, float, double, string
*/
class CC_DLL UserDefault
{
public:
// get value methods
/**
@brief Get bool value by key, if the key doesn't exist, a default value will return.
You can set the default value, or it is false.
* @js NA
*/
bool getBoolForKey(const char* pKey);
/**
* @js NA
*/
bool getBoolForKey(const char* pKey, bool defaultValue);
/**
@brief Get integer value by key, if the key doesn't exist, a default value will return.
You can set the default value, or it is 0.
* @js NA
*/
int getIntegerForKey(const char* pKey);
/**
* @js NA
*/
int getIntegerForKey(const char* pKey, int defaultValue);
/**
@brief Get float value by key, if the key doesn't exist, a default value will return.
You can set the default value, or it is 0.0f.
* @js NA
*/
float getFloatForKey(const char* pKey);
/**
* @js NA
*/
float getFloatForKey(const char* pKey, float defaultValue);
/**
@brief Get double value by key, if the key doesn't exist, a default value will return.
You can set the default value, or it is 0.0.
* @js NA
*/
double getDoubleForKey(const char* pKey);
/**
* @js NA
*/
double getDoubleForKey(const char* pKey, double defaultValue);
/**
@brief Get string value by key, if the key doesn't exist, a default value will return.
You can set the default value, or it is "".
* @js NA
*/
std::string getStringForKey(const char* pKey);
/**
* @js NA
*/
std::string getStringForKey(const char* pKey, const std::string & defaultValue);
/**
@brief Get binary data value by key, if the key doesn't exist, a default value will return.
You can set the default value, or it is null.
* @js NA
* @lua NA
*/
Data getDataForKey(const char* pKey);
/**
* @js NA
* @lua NA
*/
Data getDataForKey(const char* pKey, const Data& defaultValue);
// set value methods
/**
@brief Set bool value by key.
* @js NA
*/
void setBoolForKey(const char* pKey, bool value);
/**
@brief Set integer value by key.
* @js NA
*/
void setIntegerForKey(const char* pKey, int value);
/**
@brief Set float value by key.
* @js NA
*/
void setFloatForKey(const char* pKey, float value);
/**
@brief Set double value by key.
* @js NA
*/
void setDoubleForKey(const char* pKey, double value);
/**
@brief Set string value by key.
* @js NA
*/
void setStringForKey(const char* pKey, const std::string & value);
/**
@brief Set binary data value by key.
* @js NA
* @lua NA
*/
void setDataForKey(const char* pKey, const Data& value);
/**
@brief Save content to xml file
* @js NA
*/
void flush();
/** returns the singleton
* @js NA
* @lua NA
*/
static UserDefault* getInstance();
/**
* @js NA
*/
static void destroyInstance();
/** deprecated. Use getInstace() instead
* @js NA
* @lua NA
*/
CC_DEPRECATED_ATTRIBUTE static UserDefault* sharedUserDefault();
/**
* @js NA
*/
CC_DEPRECATED_ATTRIBUTE static void purgeSharedUserDefault();
/**
* @js NA
*/
static const std::string& getXMLFilePath();
/**
* @js NA
*/
static bool isXMLFileExist();
std::string GetValueForKeyPlist(std::string key);
// bool searchTextInPlist(std::string text);
private:
UserDefault();
~UserDefault();
static bool createXMLFile();
static void initXMLFilePath();
static UserDefault* _userDefault;
static std::string _filePath;
static bool _isFilePathInitialized;
};
// end of data_storage group
/// @}
NS_CC_END
#endif // __SUPPORT_CCUSERDEFAULT_H__
CCUserDefault.cpp
/****************************************************************************
Copyright (c) 2010-2012 cocos2d-x.org
Copyright (c) 2013-2014 Chukong Technologies Inc.
http://www.cocos2d-x.org
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
****************************************************************************/
#include "base/CCUserDefault.h"
#include "platform/CCCommon.h"
#include "platform/CCFileUtils.h"
#include "tinyxml2.h"
#include "base/base64.h"
#include "base/ccUtils.h"
#if (CC_TARGET_PLATFORM != CC_PLATFORM_IOS && CC_TARGET_PLATFORM != CC_PLATFORM_MAC && CC_TARGET_PLATFORM != CC_PLATFORM_ANDROID)
// root name of xml
#define USERDEFAULT_ROOT_NAME "userDefaultRoot"
#define XML_FILE_NAME "UserDefault.xml"
using namespace std;
NS_CC_BEGIN
/**
* define the functions here because we don't want to
* export xmlNodePtr and other types in "CCUserDefault.h"
*/
static tinyxml2::XMLElement* getXMLNodeForKey(const char* pKey, tinyxml2::XMLElement** rootNode, tinyxml2::XMLDocument **doc)
{
tinyxml2::XMLElement* curNode = nullptr;
// check the key value
if (! pKey)
{
return nullptr;
}
do
{
tinyxml2::XMLDocument* xmlDoc = new tinyxml2::XMLDocument();
*doc = xmlDoc;
std::string xmlBuffer = FileUtils::getInstance()->getStringFromFile(UserDefault::getInstance()->getXMLFilePath());
if (xmlBuffer.empty())
{
CCLOG("can not read xml file");
break;
}
xmlDoc->Parse(xmlBuffer.c_str(), xmlBuffer.size());
// get root node
*rootNode = xmlDoc->RootElement();
if (nullptr == *rootNode)
{
CCLOG("read root node error");
break;
}
// find the node
curNode = (*rootNode)->FirstChildElement();
while (nullptr != curNode)
{
const char* nodeName = curNode->Value();
if (!strcmp(nodeName, pKey))
{
break;
}
curNode = curNode->NextSiblingElement();
}
} while (0);
return curNode;
}
static void setValueForKey(const char* pKey, const char* pValue)
{
tinyxml2::XMLElement* rootNode;
tinyxml2::XMLDocument* doc;
tinyxml2::XMLElement* node;
// check the params
if (! pKey || ! pValue)
{
return;
}
// find the node
node = getXMLNodeForKey(pKey, &rootNode, &doc);
// if node exist, change the content
if (node)
{
if (node->FirstChild())
{
node->FirstChild()->SetValue(pValue);
}
else
{
tinyxml2::XMLText* content = doc->NewText(pValue);
node->LinkEndChild(content);
}
}
else
{
if (rootNode)
{
tinyxml2::XMLElement* tmpNode = doc->NewElement(pKey);//new tinyxml2::XMLElement(pKey);
rootNode->LinkEndChild(tmpNode);
tinyxml2::XMLText* content = doc->NewText(pValue);//new tinyxml2::XMLText(pValue);
tmpNode->LinkEndChild(content);
}
}
// save file and free doc
if (doc)
{
doc->SaveFile(UserDefault::getInstance()->getXMLFilePath().c_str());
delete doc;
}
}
/**
* implements of UserDefault
*/
UserDefault* UserDefault::_userDefault = nullptr;
string UserDefault::_filePath = string("");
bool UserDefault::_isFilePathInitialized = false;
UserDefault::~UserDefault()
{
}
UserDefault::UserDefault()
{
}
bool UserDefault::getBoolForKey(const char* pKey)
{
return getBoolForKey(pKey, false);
}
bool UserDefault::getBoolForKey(const char* pKey, bool defaultValue)
{
const char* value = nullptr;
tinyxml2::XMLElement* rootNode;
tinyxml2::XMLDocument* doc;
tinyxml2::XMLElement* node;
node = getXMLNodeForKey(pKey, &rootNode, &doc);
// find the node
if (node && node->FirstChild())
{
value = (const char*)(node->FirstChild()->Value());
}
bool ret = defaultValue;
if (value)
{
ret = (! strcmp(value, "true"));
}
if (doc) delete doc;
return ret;
}
int UserDefault::getIntegerForKey(const char* pKey)
{
return getIntegerForKey(pKey, 0);
}
int UserDefault::getIntegerForKey(const char* pKey, int defaultValue)
{
const char* value = nullptr;
tinyxml2::XMLElement* rootNode;
tinyxml2::XMLDocument* doc;
tinyxml2::XMLElement* node;
node = getXMLNodeForKey(pKey, &rootNode, &doc);
// find the node
if (node && node->FirstChild())
{
value = (const char*)(node->FirstChild()->Value());
}
int ret = defaultValue;
if (value)
{
ret = atoi(value);
}
if(doc)
{
delete doc;
}
return ret;
}
float UserDefault::getFloatForKey(const char* pKey)
{
return getFloatForKey(pKey, 0.0f);
}
float UserDefault::getFloatForKey(const char* pKey, float defaultValue)
{
float ret = (float)getDoubleForKey(pKey, (double)defaultValue);
return ret;
}
double UserDefault::getDoubleForKey(const char* pKey)
{
return getDoubleForKey(pKey, 0.0);
}
double UserDefault::getDoubleForKey(const char* pKey, double defaultValue)
{
const char* value = nullptr;
tinyxml2::XMLElement* rootNode;
tinyxml2::XMLDocument* doc;
tinyxml2::XMLElement* node;
node = getXMLNodeForKey(pKey, &rootNode, &doc);
// find the node
if (node && node->FirstChild())
{
value = (const char*)(node->FirstChild()->Value());
}
double ret = defaultValue;
if (value)
{
ret = utils::atof(value);
}
if (doc) delete doc;
return ret;
}
std::string UserDefault::getStringForKey(const char* pKey)
{
return getStringForKey(pKey, "");
}
string UserDefault::getStringForKey(const char* pKey, const std::string & defaultValue)
{
const char* value = nullptr;
tinyxml2::XMLElement* rootNode;
tinyxml2::XMLDocument* doc;
tinyxml2::XMLElement* node;
node = getXMLNodeForKey(pKey, &rootNode, &doc);
// find the node
if (node && node->FirstChild())
{
value = (const char*)(node->FirstChild()->Value());
}
string ret = defaultValue;
if (value)
{
ret = string(value);
}
if (doc) delete doc;
return ret;
}
Data UserDefault::getDataForKey(const char* pKey)
{
return getDataForKey(pKey, Data::Null);
}
Data UserDefault::getDataForKey(const char* pKey, const Data& defaultValue)
{
const char* encodedData = nullptr;
tinyxml2::XMLElement* rootNode;
tinyxml2::XMLDocument* doc;
tinyxml2::XMLElement* node;
node = getXMLNodeForKey(pKey, &rootNode, &doc);
// find the node
if (node && node->FirstChild())
{
encodedData = (const char*)(node->FirstChild()->Value());
}
Data ret = defaultValue;
if (encodedData)
{
unsigned char * decodedData = nullptr;
int decodedDataLen = base64Decode((unsigned char*)encodedData, (unsigned int)strlen(encodedData), &decodedData);
if (decodedData) {
ret.fastSet(decodedData, decodedDataLen);
}
}
if (doc) delete doc;
return ret;
}
void UserDefault::setBoolForKey(const char* pKey, bool value)
{
// save bool value as string
if (true == value)
{
setStringForKey(pKey, "true");
}
else
{
setStringForKey(pKey, "false");
}
}
void UserDefault::setIntegerForKey(const char* pKey, int value)
{
// check key
if (! pKey)
{
return;
}
// format the value
char tmp[50];
memset(tmp, 0, 50);
sprintf(tmp, "%d", value);
setValueForKey(pKey, tmp);
}
void UserDefault::setFloatForKey(const char* pKey, float value)
{
setDoubleForKey(pKey, value);
}
void UserDefault::setDoubleForKey(const char* pKey, double value)
{
// check key
if (! pKey)
{
return;
}
// format the value
char tmp[50];
memset(tmp, 0, 50);
sprintf(tmp, "%f", value);
setValueForKey(pKey, tmp);
}
void UserDefault::setStringForKey(const char* pKey, const std::string & value)
{
// check key
if (! pKey)
{
return;
}
setValueForKey(pKey, value.c_str());
}
void UserDefault::setDataForKey(const char* pKey, const Data& value) {
// check key
if (! pKey)
{
return;
}
char *encodedData = 0;
base64Encode(value.getBytes(), static_cast<unsigned int>(value.getSize()), &encodedData);
setValueForKey(pKey, encodedData);
if (encodedData)
free(encodedData);
}
UserDefault* UserDefault::getInstance()
{
initXMLFilePath();
// only create xml file one time
// the file exists after the program exit
if ((! isXMLFileExist()) && (! createXMLFile()))
{
return nullptr;
}
if (! _userDefault)
{
_userDefault = new UserDefault();
}
return _userDefault;
}
void UserDefault::destroyInstance()
{
CC_SAFE_DELETE(_userDefault);
}
// XXX: deprecated
UserDefault* UserDefault::sharedUserDefault()
{
return UserDefault::getInstance();
}
// XXX: deprecated
void UserDefault::purgeSharedUserDefault()
{
return UserDefault::destroyInstance();
}
bool UserDefault::isXMLFileExist()
{
FILE *fp = fopen(_filePath.c_str(), "r");
bool bRet = false;
if (fp)
{
bRet = true;
fclose(fp);
}
return bRet;
}
std::string UserDefault::GetValueForKeyPlist(std::string key){
return "test";
}
void UserDefault::initXMLFilePath()
{
if (! _isFilePathInitialized)
{
_filePath += FileUtils::getInstance()->getWritablePath() + XML_FILE_NAME;
_isFilePathInitialized = true;
}
}
// create new xml file
bool UserDefault::createXMLFile()
{
bool bRet = false;
tinyxml2::XMLDocument *pDoc = new tinyxml2::XMLDocument();
if (nullptr==pDoc)
{
return false;
}
tinyxml2::XMLDeclaration *pDeclaration = pDoc->NewDeclaration(nullptr);
if (nullptr==pDeclaration)
{
return false;
}
pDoc->LinkEndChild(pDeclaration);
tinyxml2::XMLElement *pRootEle = pDoc->NewElement(USERDEFAULT_ROOT_NAME);
if (nullptr==pRootEle)
{
return false;
}
pDoc->LinkEndChild(pRootEle);
bRet = tinyxml2::XML_SUCCESS == pDoc->SaveFile(_filePath.c_str());
if(pDoc)
{
delete pDoc;
}
return bRet;
}
const string& UserDefault::getXMLFilePath()
{
return _filePath;
}
void UserDefault::flush()
{
}
NS_CC_END
#endif // (CC_TARGET_PLATFORM != CC_PLATFORM_IOS && CC_PLATFORM != CC_PLATFORM_ANDROID)
末這裏有幾個電話我做：
std::string textid = itemname + "_name";
std::string word = UserDefault::getInstance()->GetValueForKeyPlist(textid);
std::string word = UserDefault::getInstance()->GetValueForKeyPlist(node.child("desc").attribute("value").as_string());
std::string word = UserDefault::getInstance()->GetValueForKeyPlist(itemname+"_desc");
在每個這樣的行，我得到未定義的引用 '的cocos2d :: UserDefault :: GetValueForKeyPlist（的std :: string）'
我的代碼cocos2dx遊戲結構是這樣的
/MYGAME/Classes
/MYGAME/cocos2d/cocos
/MYGAME/ml
我有jni文件夾和/ MYGAME/cocos2d/cocos中的android.mk文件，可能是鏈接問題，但如果它是鏈接問題，爲什麼我在調用UserDefault類的其他函數時未獲取未定義的引用？
編輯：問題解決。在類的頂部有一個IF，所以這個類只能在IOS平臺上編譯。現在我的方法奏效了。
是否可以向我們展示一些代碼？ – Gombat
是否在同一個項目或項目外的庫中定義了'cocos2d :: UserDefault :: GetValueForKeyPlist'？ – Gombat
它位於Classes文件夾之外。當我向這個類中添加一個函數時，我遇到了這個問題，所有其他的「UserDefault」函數都可以工作，但是這個「GetValueForKeyPlist」沒有。我將原型製作成頭文件，然後在.cpp中實現該功能。這裏缺少什麼？爲什麼我得到未定義的參考:( – Heixss