Cocos2d-x的Android工程之Android.mk与Application.mk分析

LOCAL_PATH := $(call my-dir)//#1设置当前文件路径，my-dir返回当前Android.mk所在的目录路径，用于在开发树种查找源文件
//#2CLEAR_VARS：指向编译脚本，必须在开始一个新模块之前包含。由编译系统提供，指定GUN MAKEFILE清除LOCAL_XXX变量，因为所有的控制文件都在同一个GUN MAKE
include $(CLEAR_VARS)    //执行环境中，<span style="color:#cc0000;">所有的变量都是全局的</span>。
//#3将新的路径加入NDK_MODULE_PATH变量
$(call import-add-path,$(LOCAL_PATH)/../../cocos2d)
$(call import-add-path,$(LOCAL_PATH)/../../cocos2d/external)
$(call import-add-path,$(LOCAL_PATH)/../../cocos2d/cocos)
//4#模块名字，必须是唯一的，且不能包含空格。编译系统会自动产生适合的前缀和后缀。即libXXX.so文件。
LOCAL_MODULE := cocos2dcpp_shared
//#5设置模块的二进制文件的名称，独立于LOCAL_MODULE
LOCAL_MODULE_FILENAME := libcocos2dcpp
//6#将要编译的源码文件列表，不用包含头文件和包含文件，编译系统自动找出依赖，只需列出源码文件即可。
LOCAL_SRC_FILES := hellocpp/main.cpp \
                   ../../Classes/AppDelegate.cpp \
                   ../../Classes/HelloWorldScene.cpp
//#6可选变量，表示头文件的搜索路径
LOCAL_C_INCLUDES := $(LOCAL_PATH)/../../Classes
//#7只加载用到的静态库函数，LOCAL_WHOLE_STATIC_LIBRARIES加载所有静态库
LOCAL_STATIC_LIBRARIES := cocos2dx_static
//#8指向编译脚本，根据所在的LOCAL_XXX变量，把列出的源码文件编译成一个共享库
include $(BUILD_SHARED_LIBRARY)
//在Android.mk中引用模块
$(call import-module,.)

3、Application.mk

APP_STL := c++_static//指定连接的标准C++库
NDK_TOOLCHAIN_VERSION=clang
//编译选项
APP_CPPFLAGS := -frtti -DCC_ENABLE_CHIPMUNK_INTEGRATION=1 -std=c++11 -fsigned-char
APP_LDFLAGS := -latomic


ifeq ($(NDK_DEBUG),1)
  APP_CPPFLAGS += -DCOCOS2D_DEBUG=1
  APP_OPTIM := debug
else
  APP_CPPFLAGS += -DNDEBUG
  APP_OPTIM := release
endif

#Test Exe
LOCAL_PATH := $(call my-dir)
#include $(CLEAR_VARS)
LOCAL_SRC_FILES:= main.c
LOCAL_MODULE:= test_exe
#LOCAL_C_INCLUDES :=
#LOCAL_STATIC_LIBRARIES :=
#LOCAL_SHARED_LIBRARIES :=
include $(BUILD_EXECUTABLE)

5、编译静态库模板

#Test Static Lib
LOCAL_PATH := $(call my-dir)
include $(CLEAR_VARS)
LOCAL_SRC_FILES:= \
helloworld.c
LOCAL_MODULE:= libtest_static
#LOCAL_C_INCLUDES :=
#LOCAL_STATIC_LIBRARIES :=
#LOCAL_SHARED_LIBRARIES :=
include $(BUILD_STATIC_LIBRARY) 

6、编译动态库模板

#Test Shared Lib
LOCAL_PATH := $(call my-dir)
include $(CLEAR_VARS)
LOCAL_SRC_FILES:= \
helloworld.c
LOCAL_MODULE:= libtest_shared
TARGET_PRELINK_MODULES := false
#LOCAL_C_INCLUDES :=
#LOCAL_STATIC_LIBRARIES :=
#LOCAL_SHARED_LIBRARIES :=
include $(BUILD_SHARED_LIBRARY)