Android mk编译OkHttp3

使用OkHttp，放到framework层编译，编译错误：

Warning: okio.DeflaterSink: can't find referenced class org.codehaus.mojo.animal_sniffer.IgnoreJRERequirement
Warning: okio.Okio: can't find referenced class java.nio.file.Files
Warning: okio.Okio: can't find referenced class java.nio.file.Files
Warning: okio.Okio: can't find referenced class java.nio.file.Files
Warning: okio.Okio: can't find referenced class java.nio.file.Path
Warning: okio.Okio: can't find referenced class java.nio.file.OpenOption
Warning: okio.Okio: can't find referenced class java.nio.file.Path
Warning: okio.Okio: can't find referenced class java.nio.file.OpenOption
Warning: okio.Okio: can't find referenced class org.codehaus.mojo.animal_sniffer.IgnoreJRERequirement
Warning: okio.Okio: can't find referenced class java.nio.file.Path
Warning: okio.Okio: can't find referenced class java.nio.file.OpenOption
Warning: okio.Okio: can't find referenced class java.nio.file.Path
Warning: okio.Okio: can't find referenced class java.nio.file.OpenOption
Warning: okio.Okio: can't find referenced class org.codehaus.mojo.animal_sniffer.IgnoreJRERequirement
Warning: there were 14 unresolved references to classes or interfaces.
         You may need to add missing library jars or update their versions.
         If your code works fine without the missing classes, you can suppress
         the warnings with '-dontwarn' options.
         (http://proguard.sourceforge.net/manual/troubleshooting.html#unresolvedclass)
Error: Please correct the above warnings first.

编译环境：

• Welcome to Ubuntu 14.04.4 LTS (GNU/Linux 3.16.0-40-generic x86_64)

• miyuehu@ubuntu:~$ java -version

• java version “1.7.0_101”
• OpenJDK Runtime Environment (IcedTea 2.6.6) (7u101-2.6.6-0ubuntu0.14.04.1)
• OpenJDK 64-Bit Server VM (build 24.95-b01, mixed mode)

---

github okhttp FAQs

https://github.com/square/okhttp/issues/964
大牛回复
Nope. They are safe to ignore!

擦，不用管。
关键提示信息：“the warnings with ‘-dontwarn’ options”
////////////////////////////////////////////////////////////////

修改Android.mk

###使能proguard.cfg
LOCAL_PROGUARD_ENABLED := full
LOCAL_PROGUARD_FLAG_FILES := proguard.cfg

LOCAL_CERTIFICATE := platform
include $(BUILD_PACKAGE)

include $(CLEAR_VARS)
LOCAL_PREBUILT_STATIC_JAVA_LIBRARIES := okhttp:libs/okhttp-3.5.0.jar 
LOCAL_PREBUILT_STATIC_JAVA_LIBRARIES += okio:libs/okio-1.11.0.jar
include $(BUILD_MULTI_PREBUILT)

修改proguard.cfg

-dontwarn okio.**

目录结构：
.
├── AndroidManifest.xml
├── Android.mk
├── assets
├── libs
│?? ├── okhttp-3.5.0.jar
│?? └── okio-1.11.0.jar