android PathClassLoader couldn't find "libxxx.so"
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1. 问题:
Android studio中,引用so库时,不能正确加载so。
2.错误详情:
com.project.testapp I/System.out: -------------an error occured-------------
com.project.testapp I/System.out: dalvik.system.PathClassLoader[DexPathList[[zip file "/data/app/com.project.testapp-2/base.apk"],nativeLibraryDirectories=[/vendor/lib, /system/lib]]] couldn't find "liband.so"
com.project.testapp E/art: No implementation found for long cn.com.swjni.Open() (tried Java_cn_com_swjni_Open and Java_cn_com_swjni_Open__)
com.project.testapp D/AndroidRuntime: Shutting down VM
com.project.testapp E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.project.testapp, PID: 13179
java.lang.UnsatisfiedLinkError: No implementation found for long cn.com.swjni.Open() (tried Java_cn_com_swjni_Open and Java_cn_com_swjni_Open__)
at cn.com.swjni.Open(Native Method)
..........
at com.project.testapp.TestMainActivity.onCreate(TestMainActivity.java:79)
at android.app.Activity.performCreate(Activity.java:6221)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1119)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2611)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2723)
at android.app.ActivityThread.access$900(ActivityThread.java:172)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1422)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:145)
at android.app.ActivityThread.main(ActivityThread.java:5832)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1399)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1194)
com.qdsc.sdkeytestapp I/Process: Sending signal. PID: 13179 SIG: 9
3. 解决办法:
具体这个案例来看,从log可以分析出,加载so不成功。看了一下我的环境,配置也没什么问题,那么,为什么加载不成功。
最终发现,原来是因为在build.gradle文件中,没有写
jniLibs.srcDirs
所导致的。加上就可以了,如下:
sourceSets { main { jniLibs.srcDirs = ['libs'] jni.srcDirs = [] }}
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