AOSP Android 添加第三方aar库到系统实战

拆aar,并打包jar为dex

~/Android/Sdk/build-tools/30.0.2/dx --dex --output=classes.dex ./*.jar
jar cf iiot.jar classes.dex

把jar 和 So 放到指定目录，并在device.mk中添加对应的配置

project device/xxx/xxx_x/device.mk

+PRODUCT_COPY_FILES += $(LOCAL_PATH)/libxxxio_linux.so:system/lib/libxxxio_linux.so
+PRODUCT_COPY_FILES += $(LOCAL_PATH)/com.xxx.iot.jar:system/framework/com.xxx.iot.jar

声明library

project frameworks/base/data/etc/platform.xml

     <library name="org.apache.http.legacy"
             file="/system/framework/org.apache.http.legacy.boiot.jar" />
+            
+        <library name="com.xxx.iot"
+        file="/system/framework/com.xxx.iot.jar"/>

声明So

project system/core//roiotdir/etc/public.libraries.android.txt
 libc++.so
 libandroid_runtime.so
+libxxxio_linux.so

应用层使用：

<application
    android:name=".xxxx"
    tools:replace="android:label,android:allowBackup">
    
    <uses-library android:name="com.xxx.iot"
        android:required="true"/>

添加防混淆

-keep class io.netty.** {*;}
-keep class org.slf4j.** {*;}
-keep class com.xxx.bridge.** {*;}
-keep class com.xxx.xxxio.** {*;}
-keep class com.xxx.xxxiot.** {*;}
-keep class com.xxx.tool.** {*;}
-keep class com.ouyang.** {*;}

添加AAR中的清单文件

<service
    android:name="com.xxxx"
    android:enabled="true"
    android:process=":xxx"
    android:exported="false" >
    <intent-filter android:priority="1000" >
        <action android:name="xxxxx" />
    </intent-filter>
</service>