android PathClassLoader couldn't find "libxxx.so"

悠悠 2023-10-17 09:43 10阅读 0赞

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 = []
        }
    }

问题解决。