How to add a third party C library in android apk?

Question

I have a prebuild third party C library libliveplay.so, I want to add it to apk. I put it under

libs/armeabi
libs/armeabi-v7a

and my android.mk file is like:

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

LOCAL_MODULE_TAGS := optional

LOCAL_SRC_FILES := $(call all-subdir-java-files)

LOCAL_PACKAGE_NAME := RtspPlayer
LOCAL_CERTIFICATE := platform
LOCAL_PROGUARD_ENABLED := disabled
LOCAL_DEX_PREOPT := false

LOCAL_SHARED_LIBRARIES := libliveplay

include $(BUILD_PACKAGE)
include $(call all-makefiles-under,$(LOCAL_PATH))

but it can't add the so into apk with this method, could anyone help?

When apk build out, I install it on my device, and runtime error happened:

E/AndroidRuntime( 4660): FATAL EXCEPTION: main
E/AndroidRuntime( 4660): java.lang.ExceptionInInitializerError
E/AndroidRuntime( 4660):    at java.lang.Class.newInstanceImpl(Native Method)
E/AndroidRuntime( 4660):    at java.lang.Class.newInstance(Class.java:1319)
E/AndroidRuntime( 4660):    at android.app.Instrumentation.newActivity(Instrumentation.java:1064)
E/AndroidRuntime( 4660):    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2097)
E/AndroidRuntime( 4660):    at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2230)
E/AndroidRuntime( 4660):    at android.app.ActivityThread.access$600(ActivityThread.java:141)
E/AndroidRuntime( 4660):    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1234)
E/AndroidRuntime( 4660):    at android.os.Handler.dispatchMessage(Handler.java:99)
E/AndroidRuntime( 4660):    at android.os.Looper.loop(Looper.java:137)
E/AndroidRuntime( 4660):    at android.app.ActivityThread.main(ActivityThread.java:5041)
E/AndroidRuntime( 4660):    at java.lang.reflect.Method.invokeNative(Native Method)
E/AndroidRuntime( 4660):    at java.lang.reflect.Method.invoke(Method.java:511)
E/AndroidRuntime( 4660):    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:793)
E/AndroidRuntime( 4660):    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:560)
E/AndroidRuntime( 4660):    at dalvik.system.NativeStart.main(Native Method)
E/AndroidRuntime( 4660): Caused by: java.lang.UnsatisfiedLinkError: Couldn't load liveplay from loader dalvik.system.PathClassLoader[dexPath=/data/app/com.mrlans.play-2.apk,libraryPath=/data/app-lib/com.mrlans.play-2]: findLibrary returned null
E/AndroidRuntime( 4660):    at java.lang.Runtime.loadLibrary(Runtime.java:365)
E/AndroidRuntime( 4660):    at java.lang.System.loadLibrary(System.java:535)
E/AndroidRuntime( 4660):    at com.mrlans.play.MediaActivity.<clinit>(MediaActivity.java:152)
E/AndroidRuntime( 4660):    ... 15 more

The error indicated that the so did not include in the apk, it didn't install into system when apk installed. please help.

http://stackoverflow.com/questions/8650472/how-do-i-import-a-native-library-so-file-into-eclipse Go through this question. — Bhaskar, Apr 01 '14 at 11:01
Its already a art of the apk and you don't need to add it manually. Just load it at runtime through your code — Adnan Mulla, Apr 01 '14 at 12:58
http://stackoverflow.com/questions/7927210/how-to-include-prebuilt-shared-libraries-in-apk-with-eclipse — Marcel Tricolici, Apr 01 '14 at 13:48
please see my question updated error. I see your advice thread post, I think it not work for me. — gladman, Apr 02 '14 at 02:10

Krypton · Answer 1 · 2014-04-02T03:25:19.403

0

You need to include libliveplay as PREBUILT library. Place libliveplay.so in your /jni directory so the structure is as following:

Android.mk                 --> the file above
armeabi/libliveplay.so     --> the armeabi prebuilt shared library
armeabi-v7a/libliveplay.so --> the armeabi-v7a prebuilt shared library

Then in Android.mk

LOCAL_PATH:= $(call my-dir)

include $(CLEAR_VARS)
LOCAL_MODULE := liveplay
LOCAL_SRC_FILES := $(TARGET_ARCH_ABI)/libliveplay.so
include $(PREBUILT_SHARED_LIBRARY)


include $(CLEAR_VARS)

LOCAL_MODULE_TAGS := optional

LOCAL_SRC_FILES := $(call all-subdir-java-files)

LOCAL_PACKAGE_NAME := RtspPlayer
LOCAL_CERTIFICATE := platform
LOCAL_PROGUARD_ENABLED := disabled
LOCAL_DEX_PREOPT := false

LOCAL_SHARED_LIBRARIES := liveplay

include $(BUILD_PACKAGE)
include $(call all-makefiles-under,$(LOCAL_PATH))

edited Apr 02 '14 at 03:25

answered Apr 02 '14 at 02:42

Krypton

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I have tried your method, the build out apk didn't include libliveplay.so – gladman Apr 02 '14 at 03:14
Can you check if the path to libliveplay.so is correct? – Krypton Apr 02 '14 at 03:17
my lib path is under project_path/libs/armeabi/ and project_path/libs/armeabi-v7a/ folder, it's android apk libs folder – gladman Apr 02 '14 at 03:19
if so then you need to put your libliveplay.so in the jni directory and your path should be like this: include $(CLEAR_VARS) LOCAL_MODULE := liveplay LOCAL_SRC_FILES := $(TARGET_ARCH_ABI)/libliveplay.so include $(PREBUILT_SHARED_LIBRARY) See my edit for info – Krypton Apr 02 '14 at 03:24
I use you edit mk file, then build using 'mmm -B package/apps/RtspPlayer', the apk didn't include the library either. So frustrate us. – gladman Apr 02 '14 at 03:31

How to add a third party C library in android apk?

1 Answers1