Question

我从那里的网站下载了Getac Z710 Android tablet RFID库/ jar。但在我调用init函数之后：

05-19 19:23:45.315: E/AndroidRuntime(2469): FATAL EXCEPTION: main
05-19 19:23:45.315: E/AndroidRuntime(2469): java.lang.ExceptionInInitializerError
05-19 19:23:45.315: E/AndroidRuntime(2469):  at com.getac.lib.rfidreader.RfidTagReaderAPI.InitRFIDReader(RfidTagReaderAPI.java:118)
05-19 19:23:45.315: E/AndroidRuntime(2469):  at example.com.MainActivity.onCreate(MainActivity.java:104)
05-19 19:23:45.315: E/AndroidRuntime(2469):  at android.app.Activity.performCreate(Activity.java:5008)
05-19 19:23:45.315: E/AndroidRuntime(2469):  at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1079)
05-19 19:23:45.315: E/AndroidRuntime(2469):  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2023)
05-19 19:23:45.315: E/AndroidRuntime(2469):  at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2084)
05-19 19:23:45.315: E/AndroidRuntime(2469):  at android.app.ActivityThread.access$600(ActivityThread.java:130)
05-19 19:23:45.315: E/AndroidRuntime(2469):  at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1195)
05-19 19:23:45.315: E/AndroidRuntime(2469):  at android.os.Handler.dispatchMessage(Handler.java:99)
05-19 19:23:45.315: E/AndroidRuntime(2469):  at android.os.Looper.loop(Looper.java:137)
05-19 19:23:45.315: E/AndroidRuntime(2469):  at android.app.ActivityThread.main(ActivityThread.java:4745)
05-19 19:23:45.315: E/AndroidRuntime(2469):  at java.lang.reflect.Method.invokeNative(Native Method)
05-19 19:23:45.315: E/AndroidRuntime(2469):  at java.lang.reflect.Method.invoke(Method.java:511)
05-19 19:23:45.315: E/AndroidRuntime(2469):  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:786)
05-19 19:23:45.315: E/AndroidRuntime(2469):  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553)
05-19 19:23:45.315: E/AndroidRuntime(2469):  at dalvik.system.NativeStart.main(Native Method)
05-19 19:23:45.315: E/AndroidRuntime(2469): Caused by: java.lang.UnsatisfiedLinkError: Couldn't load serial_port: findLibrary returned null
05-19 19:23:45.315: E/AndroidRuntime(2469):  at java.lang.Runtime.loadLibrary(Runtime.java:365)
05-19 19:23:45.315: E/AndroidRuntime(2469):  at java.lang.System.loadLibrary(System.java:538)
05-19 19:23:45.315: E/AndroidRuntime(2469):  at android_serialport_api.SerialPort.<clinit>(SerialPort.java:69)
05-19 19:23:45.315: E/AndroidRuntime(2469):  ... 16 more

我为此尝试了其他解决方案，但仍然没有运气。会出现什么问题？他们只有有限的文档和支持。 TIA。

Answer 1

我在同一设备上遇到了同样的问题。通过从here下载libserial_port.so并将其复制到myProject / libs / armeabi /来实现它。我正在使用Eclipse。

Answer 2

当您的代码/项目无法找到项目中包含的系统库时，会出现此错误。为此，您需要使用NDK重新构建.so文件。因此，您可以使用NDK插件重新构建.so文件。以下是Using the NDK Plugins

的步骤

ExceptionInInitializerError和UnsatisfiedLinkError

2 个答案: