android系统应用根据mk文件加载相应的文件

1、mk文件介绍

AAA := aw

LOCAL_PATH := $(call my-dir)
include $(CLEAR_VARS)

# LOCAL_PRODUCT_MODULE := true
LOCAL_PACKAGE_NAME := BndEngineerMode
LOCAL_PRIVATE_PLATFORM_APIS := true
LOCAL_MODULE_TAGS := optional
LOCAL_SRC_FILES := $(call all-java-files-under, src)
ifeq ($(strip $(AAA)), mtk)
LOCAL_SRC_FILES += $(call all-java-files-under, src_mtk)
LOCAL_JAVA_LIBRARIES += mediatek-framework telephony-common
LOCAL_STATIC_JAVA_LIBRARIES += vendor.mediatek.hardware.nvram-V1.1-java
endif
ifeq ($(strip $(AAA)), sprd)
LOCAL_SRC_FILES += $(call all-java-files-under, src_sprd)
endif
ifeq ($(strip $(AAA)), aw)
LOCAL_SRC_FILES += $(call all-java-files-under, src_aw)
LOCAL_STATIC_JAVA_LIBRARIES := \
	libsecstoragemanager
endif
ifeq ($(strip $(AAA)), rk)
LOCAL_SRC_FILES += $(call all-java-files-under, src_rk)

endif
LOCAL_CERTIFICATE := platform
LOCAL_STATIC_ANDROID_LIBRARIES := \
    android-support-v7-recyclerview
LOCAL_DEX_PREOPT := false

# LOCAL_STATIC_JAVA_LIBRARIES += vendor.mediatek.hardware.netdagent-V1.0-java
# LOCAL_PRIVILEGED_MODULE := true
include $(BUILD_PACKAGE)

解析就是AAA后面的值就是需要传入的，根据后面传入的值进行加载相应的文件夹。这样一份代码就可以控制四个平台