先看看引入jar (因為和引用aar很像)
LOCAL_STATIC_JAVA_LIBRARIES := dictenginelib \
org.apache.http.legacy \
constraint-layout-solver-1.1.3_ \
yxp_support-new-v4-annotations-25.3.1 \
yxp_support-new-v4-compat-25.3.1 \
yxp_support-new-v4-core-ui-25.3.1 \
yxp_support-new-v4-fragment-25.3.1 \
yxp_support-new-v4-media-compat-25.3.1 \
yxp_support-new-v4-core-utils-25.3.1 \
yxp_support-new-vector-drawable-25.3.1 \
yxp_support-new-animated-vector-drawable-25.3.1 \
IntelligentLearningScheme_cupboard-2.2.0 \
IntelligentLearningScheme_glide-4.3.1 \
IntelligentLearningScheme_glide_annotations-4.3.1 \
IntelligentLearningScheme_glide_disklrucache-4.3.1 \
IntelligentLearningScheme_glide_gifdecoder-4.3.1\
IntelligentLearningScheme_gson-2.8.5 \
IntelligentLearningScheme_okgo-3.0.4 \
IntelligentLearningScheme_okhttp-3.8.1 \
IntelligentLearningScheme_okio-1.13.0
LOCAL_PREBUILT_STATIC_JAVA_LIBRARIES := IntelligentLearningScheme_cupboard-2.2.0:libs/cupboard-2.2.0.jar \
IntelligentLearningScheme_glide-4.3.1:libs/glide-4.3.1.jar \
IntelligentLearningScheme_glide_annotations-4.3.1:libs/glide_annotations-4.3.1.jar \
IntelligentLearningScheme_glide_disklrucache-4.3.1:libs/glide_disklrucache-4.3.1.jar \
IntelligentLearningScheme_glide_gifdecoder-4.3.1:libs/glide_gifdecoder-4.3.1.jar \
IntelligentLearningScheme_gson-2.8.5:libs/gson-2.8.5.jar \
IntelligentLearningScheme_okgo-3.0.4:libs/okgo-3.0.4.jar \
IntelligentLearningScheme_okhttp-3.8.1:libs/okhttp-3.8.1.jar \
IntelligentLearningScheme_okio-1.13.0:libs/okio-1.13.0.jar \
constraint-layout-solver-1.1.3_:/../../library/third_jars/constraint-layout-solver-1.1.3.jar \
yxp_support-new-v4-annotations-25.3.1:/../../library/third_jars/support-annotations-25.3.1_.jar \
yxp_support-new-v4-compat-25.3.1:/../../library/third_jars/support-compat-25.3.1_.jar \
yxp_support-new-v4-core-ui-25.3.1:/../../library/third_jars/support-core-ui-25.3.1_.jar \
yxp_support-new-v4-fragment-25.3.1:/../../library/third_jars/support-fragment-25.3.1_.jar \
yxp_support-new-v4-media-compat-25.3.1:/../../library/third_jars/support-media-compat-25.3.1_.jar \
yxp_support-new-v4-core-utils-25.3.1:/../../library/third_jars/support-core-utils-25.3.1_.jar \
yxp_support-new-vector-drawable-25.3.1:/../../library/third_jars/support-vector-drawable-25.3.1_.jar \
yxp_support-new-animated-vector-drawable-25.3.1:/../../library/third_jars/support-animated-vector-drawable-25.3.1_.jar
使用LOCAL_STATIC_JAVA_LIBRARIES 要引入的jar定義一個變量名。
使用LOCAL_PREBUILT_STATIC_JAVA_LIBRARIES 給定義的變量 設定一個引用路徑。
再看引用aar
LOCAL_STATIC_JAVA_AAR_LIBRARIES := IntelligentLearningScheme_appcompat-v7-25.3.1 \
IntelligentLearningScheme_recyclerview-v7-25.3.1 \
IntelligentLearningScheme_constraint-layout-1.1.3 \
IntelligentLearningScheme_utilcode-1.9.9
LOCAL_PREBUILT_STATIC_JAVA_LIBRARIES := IntelligentLearningScheme_appcompat-v7-25.3.1:/../../library/aars/appcompat-v7-25.3.1.aar \
IntelligentLearningScheme_recyclerview-v7-25.3.1:/../../library/aars/recyclerview-v7-25.3.1.aar \
IntelligentLearningScheme_constraint-layout-1.1.3:/../../library/aars/constraint-layout-1.1.3.aar \
IntelligentLearningScheme_utilcode-1.9.9:libs/utilcode-1.9.9.aar
#需要引入library/aar的包名
LOCAL_AAPT_FLAGS := --auto-add-overlay \
--extra-packages android.support.v7.appcompat \
--extra-packages android.support.constraint \
--extra-packages android.support.v7.recyclerview \
--extra-packages com.blankj.utilcode
可以發現不同的是：
需要使用LOCAL_STATIC_JAVA_AAR_LIBRARIES 來給要引入的aar 定義一個變量(差別于LOCAL_STATIC_JAVA_LIBRARIES)。
需要使用LOCAL_AAPT_FLAGS為aar添加一個包名。
需要注意的是：
android.support.constraint 的 targetSdkVersion='24'
appcompat、recyclerview、cardview 都是 minSdkVersion='9' ， com.blankj.utilcode為 minSdkVersion='14'
是以在androidmianfest.xml加上
android:minSdkVersion="19"
android:targetSdkVersion="24" />
注意：
加上android:targetSdkVersion="24"會有一些問題，因為android6.0(23)加入了動态權限，targetSdkVersion="24"時需添加動态權限代碼。
将targetSdkVersion="24"改為targetSdkVersion="22"則不需要添加動态權限代碼，但是會有編譯錯誤，這裡發現，隻需要在編譯一次此問題就會解決(比如加一個空格再上傳代碼編譯，就會通過編譯，以u27為例，暫不清楚為什麼會這樣，且隻發現在constraint 庫上有此問題，知道的同學望指教)。
編譯的apk安裝，有幾率constraint 庫會在setcontentview() 提示找不到此庫。
完整android.mk檔案
LOCAL_PATH := $(call my-dir)
include $(CLEAR_VARS)
LOCAL_PROGUARD_ENABLED := disabled
LOCAL_MODULE_TAGS := optional
LOCAL_STATIC_JAVA_LIBRARIES := dictenginelib \
org.apache.http.legacy \
constraint-layout-solver-1.1.3_ \
yxp_support-new-v4-annotations-25.3.1 \
yxp_support-new-v4-compat-25.3.1 \
yxp_support-new-v4-core-ui-25.3.1 \
yxp_support-new-v4-fragment-25.3.1 \
yxp_support-new-v4-media-compat-25.3.1 \
yxp_support-new-v4-core-utils-25.3.1 \
yxp_support-new-vector-drawable-25.3.1 \
yxp_support-new-animated-vector-drawable-25.3.1 \
IntelligentLearningScheme_cupboard-2.2.0 \
IntelligentLearningScheme_glide-4.3.1 \
IntelligentLearningScheme_glide_annotations-4.3.1 \
IntelligentLearningScheme_glide_disklrucache-4.3.1 \
IntelligentLearningScheme_glide_gifdecoder-4.3.1\
IntelligentLearningScheme_gson-2.8.5 \
IntelligentLearningScheme_okgo-3.0.4 \
IntelligentLearningScheme_okhttp-3.8.1 \
IntelligentLearningScheme_okio-1.13.0
LOCAL_STATIC_JAVA_AAR_LIBRARIES := IntelligentLearningScheme_appcompat-v7-25.3.1 \
IntelligentLearningScheme_recyclerview-v7-25.3.1 \
IntelligentLearningScheme_constraint-layout-1.1.3 \
IntelligentLearningScheme_utilcode-1.9.9
#LOCAL_ASSET_DIR := $(LOCAL_PATH)/app/src/main/assets
LOCAL_JAVA_LIBRARIES := com.noahedu \
PenWriterLib \
com.writepen \
ucache
LOCAL_RESOURCE_DIR := \
$(addprefix $(LOCAL_PATH)/../../library/yxp_src/dictenginelib/, res) \
$(LOCAL_PATH)/res
# $(addprefix $(LOCAL_PATH)/,$(extrafunction)/src/main/res) \
LOCAL_SRC_FILES := $(call all-java-files-under, src) \
src/com/noahedu/synclearning/engine/IBookService.aidl \
src/com/noahedu/synclearning/engine/IBookServiceCallback.aidl
# $(call all-java-files-under,$(extrafunction)/src/main/java)\
#需要引入library/aar的包名
LOCAL_AAPT_FLAGS := --auto-add-overlay \
--extra-packages com.noahedu.DictEngine \
--extra-packages android.support.v7.appcompat \
--extra-packages android.support.constraint \
--extra-packages android.support.v7.recyclerview \
--extra-packages com.blankj.utilcode
LOCAL_PACKAGE_NAME := IntelligentLearningScheme
LOCAL_CERTIFICATE := testkey
include $(BUILD_PACKAGE)
include $(CLEAR_VARS)
#libs/recyclerview-v7-25.3.1.aar
#$(LOCAL_PATH)/../../library/jars/recyclerview-v7-25.3.1.aar
LOCAL_PREBUILT_STATIC_JAVA_LIBRARIES := IntelligentLearningScheme_cupboard-2.2.0:libs/cupboard-2.2.0.jar \
IntelligentLearningScheme_glide-4.3.1:libs/glide-4.3.1.jar \
IntelligentLearningScheme_glide_annotations-4.3.1:libs/glide_annotations-4.3.1.jar \
IntelligentLearningScheme_glide_disklrucache-4.3.1:libs/glide_disklrucache-4.3.1.jar \
IntelligentLearningScheme_glide_gifdecoder-4.3.1:libs/glide_gifdecoder-4.3.1.jar \
IntelligentLearningScheme_gson-2.8.5:libs/gson-2.8.5.jar \
IntelligentLearningScheme_okgo-3.0.4:libs/okgo-3.0.4.jar \
IntelligentLearningScheme_okhttp-3.8.1:libs/okhttp-3.8.1.jar \
IntelligentLearningScheme_okio-1.13.0:libs/okio-1.13.0.jar \
constraint-layout-solver-1.1.3_:/../../library/third_jars/constraint-layout-solver-1.1.3.jar \
yxp_support-new-v4-annotations-25.3.1:/../../library/third_jars/support-annotations-25.3.1_.jar \
yxp_support-new-v4-compat-25.3.1:/../../library/third_jars/support-compat-25.3.1_.jar \
yxp_support-new-v4-core-ui-25.3.1:/../../library/third_jars/support-core-ui-25.3.1_.jar \
yxp_support-new-v4-fragment-25.3.1:/../../library/third_jars/support-fragment-25.3.1_.jar \
yxp_support-new-v4-media-compat-25.3.1:/../../library/third_jars/support-media-compat-25.3.1_.jar \
yxp_support-new-v4-core-utils-25.3.1:/../../library/third_jars/support-core-utils-25.3.1_.jar \
yxp_support-new-vector-drawable-25.3.1:/../../library/third_jars/support-vector-drawable-25.3.1_.jar \
yxp_support-new-animated-vector-drawable-25.3.1:/../../library/third_jars/support-animated-vector-drawable-25.3.1_.jar \
IntelligentLearningScheme_appcompat-v7-25.3.1:/../../library/aars/appcompat-v7-25.3.1.aar \
IntelligentLearningScheme_recyclerview-v7-25.3.1:/../../library/aars/recyclerview-v7-25.3.1.aar \
IntelligentLearningScheme_constraint-layout-1.1.3:/../../library/aars/constraint-layout-1.1.3.aar \
IntelligentLearningScheme_utilcode-1.9.9:libs/utilcode-1.9.9.aar
include $(BUILD_MULTI_PREBUILT)
#include $(BUILD_PREBUILT)
# Use the folloing include to make our test apk.
include $(call all-makefiles-under,$(LOCAL_PATH))
如果代碼或者資源不在預設路徑，就需要額外指定，或者指定多個
# ‘:=’是指派的意思；’+=’是追加的意思；‘\’表示連接配接符。
LOCAL_MODULE_TAGS :=user eng tests optional
- user: 指該子產品隻在user版本下才編譯
- eng: 指該子產品隻在eng版本下才編譯
- tests: 指該子產品隻在tests版本下才編譯
- optional:指該子產品在所有版本下都編譯
#指定asset目錄
LOCAL_ASSET_DIR := $(LOCAL_PATH)/app/src/main/assets
#指定res目錄
LOCAL_RESOURCE_DIR := \
$(addprefix $(LOCAL_PATH)/../../library/yxp_src/dictenginelib/, res) \
$(LOCAL_PATH)/res
#指定src/aidl目錄
LOCAL_SRC_FILES := $(call all-java-files-under, src) \
src/com/noahedu/synclearning/engine/IBookService.aidl \
src/com/noahedu/synclearning/engine/IBookServiceCallback.aidl \
$(call all-Iaidl-files-under, src/com/noahedu/synclearning/engine/)
#指定arm目錄
LOCAL_PREBUILT_JNI_LIBS_arm := libs/armeabi-v7a/libdecrypt.so \
libs/armeabi-v7a/liblasa.so \
libs/armeabi-v7a/libspeex.so \
libs/armeabi-v7a/libddsdns.so
#指定arm64目錄
LOCAL_PREBUILT_JNI_LIBS_arm64 :=libs/arm64-v8a/libdecrypt.so \
libs/arm64-v8a/liblasa.so \
libs/arm64-v8a/libspeex.so \
libs/arm64-v8a/libddsdns.so
#指定androidmainfest.xml目錄
LOCAL_MANIFEST_FILE := AndroidManifest.xml
發現總是編譯不過的一個問題，看下面這段.mk片段
34行連接配接符 “ \ ”會把下面的35行的代碼連成一片。 導緻下面所有jar aar 都引用不到。是以編譯就會報錯
改正：
如果是注釋：
連接配接符 “ \ ”後面要空一行。
連接配接符 “ \ ”後面要空一行。
連接配接符 “ \ ”後面要空一行。