private final boolean DEBUG = false;
if (DEBUG) {
Log.i("TEST","hello,world");
}
LOCAL_SRC_FILES := $(call all-java-files-under, src)
这条代码的意思是从src目录中查找所有的java文件,并保存到LOCAL_SRC_FILES
│ Android.mk
│└─src
include $(call all-makefiles-under, $(LOCAL_PATH)/platform)
这里的LOCAL_PATH为在根目录的Android.mk中定义的LOCAL_PATH
执行时会包含platform子目录下的所有Android.mkifeq ($(TARGET_PRODUCT),aa)
PLATFORM_DIR := aa
Endif
ifeq ($(TARGET_PRODUCT),bb)
PLATFORM_DIR := bb
endif
LOCAL_PATH:= $(call my-dir) include $(CLEAR_VARS)
...
LOCAL_SRC_FILES := $(call all-java-files-under, src)
include $(LOCAL_PATH)/platform/Android.mk
LOCAL_SRC_FILES += $(call all-java-files-under, platform/$(MTA_PLATFORM_DIR)/src)
...
标红的第一行代码把platform/Android.mk包含进来,执行的脚本会根据平台定义PLATFORM_DIR变量。第二行代码即为把平台相关的src目录下的所有java代码包含进来.
这样,就实现了编译不同文件的java代码了。
方法是用
include $(BUILD_STATIC_JAVA_LIBRARY)代替include $(BUILD_JAVA_LIBRARY)
include $(BUILD_JAVA_LIBRARY)会直接编译出jar包。而include $(BUILD_STATIC_JAVA_LIBRARY)虽然也会生成jar包,