我对cocos2dx非常陌生。我有一个用xcode制作的cocos2dx项目。对于手势识别器,我在cocos2dx中使用cocoa touch的本机代码(UIGestureRecognizers),使用.mm文件。
现在我想用android sdk构建这个项目。
我通过使用build_native.sh文件构建android项目得到的错误,在终端中就像是以下
1
../android-ndk-r9d/toolchains/arm-linux-androideabi-4.6/prebuilt/darwin-x86_64/bin/../lib/gcc/arm-linux-androideabi/4.6/../../../../arm-linux-androideabi/bin/ld: ./obj/local/armeabi/objs/cocos2dcpp_shared/__/__/Classes/HelloWorldScene.o: in function HelloWorld::menuCloseCallback(cocos2d::CCObject*):jni/../../Classes/HelloWorldScene.cpp:88: error: undefined reference to 'XBridge::doSth()'
2
../android-ndk-r9d/toolchains/arm-linux-androideabi-4.6/prebuilt/darwin-x86_64/bin/../lib/gcc/arm-linux-androideabi/4.6/../../../../arm-linux-androideabi/bin/ld: ./obj/local/armeabi/objs/cocos2dcpp_shared/__/__/Classes/HelloWorldScene.o: in function HelloWorld::menuCloseCallback(cocos2d::CCObject*):jni/../../Classes/HelloWorldScene.cpp:85: error: undefined reference to 'XBridge::imageName'
collect2: ld returned 1 exit status
make: *** [obj/local/armeabi/libcocos2dcpp.so] Error 1
make: Leaving directory `../cocos2d-x/projects/MyGame/proj.android'
我在这里错过了什么?我刚开始学习cocos2dx。 我甚至可以在Android项目中使用这样的原生iOS代码吗?或者我只是拍摄空白?
我的代码如下所示。
我的HelloWorldScene.cpp中的代码
void HelloWorld::menuCloseCallback(CCObject* pSender)
{
#if (CC_TARGET_PLATFORM == CC_PLATFORM_WINRT) || (CC_TARGET_PLATFORM == CC_PLATFORM_WP8)
CCMessageBox("You pressed the close button. Windows Store Apps do not implement a close button.","Alert");
#else
cocos2d::CCString * imageNameString = cocos2d::CCString::create("image.png");
XBridge::imageName = imageNameString->getCString();
XBridge::doSth();
#if (CC_TARGET_PLATFORM == CC_PLATFORM_IOS)
//exit(0);
#endif
#endif
}
XBridge.h中的代码
#ifndef xbridge_XBridgeViewController_h
#define xbridge_XBridgeViewController_h
#include "cocos2d.h"
class XBridge {
public:
static std::string imageName;
static void doSth();
};
#endif
XBridge.mm中的代码
#include "XBridge.h"
#include "AppController.h"
#include "RootViewController.h"
#include "SpriteVC.h"
using namespace cocos2d;
std::string XBridge::imageName;
void XBridge::doSth()
{
id sth = [[UIApplication sharedApplication] delegate];
if ([sth isKindOfClass:[AppController class]])
{
printf("XBridge::doSth imageName %s\n",imageName.c_str());
SpriteVC *SPVC = [[SpriteVC alloc] initWithNibName:nil bundle:nil];
SPVC.imageNameString = [NSString stringWithFormat:@"%s",imageName.c_str()];
[SPVC setUpImage];
NSLog(@"XBridge::doSth imageName == %@",[NSString stringWithFormat:@"%s",imageName.c_str()]);
//SPVC.imageView.frame = CGRectMake(480, 320, 333, 333);
AppController *controller = (AppController *)sth;
[controller.viewController.view addSubview:SPVC.photoImage];
}
}
答案 0 :(得分:0)
即使您真的可以使用Android NDK Clang工具链编译Objective-C和Objective-C ++代码,也无法使用适用于Android的iOS Cocoa Touch API。因为Android NDK根本不提供iOS API,如UIApplication,AppController等。 Cocos2d-x只提供C ++中的Cocos2d-x API和Android的一些插件。
如果您想使用适用于Android的iOS API,请查看Apportable。