Please note that this question is a follow-up question to another question I asked here some time ago.
What would I like to achieve?
I would like to use JNA (version 4.5.2 with Android Studio) to achieve the following:
- First I would like to get a list of all callable functions from a given .so file.
- Once I have this list, I would like to call a specific function
What did I do so far?
So far, the code of the file "MainActivita.java" of my test app looks as follows:
public class MainActivity extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
String MyLibraryString = MyLibrary.Instance.toString();
}
public interface MyLibrary extends Library
{
MyLibrary Instance = (MyLibrary ) Native.loadLibrary("nameOfMyLibraryWithoutSoExtension", MyLibrary.class);
}
}
What issues am I facing?
I used to get an error message that my library is not found on my Android device but after putting it in the "jniLibs" subfolder my app seems to be able to detect it. Unfortunately, I now get the error message
java.lang.UnsatisfiedLinkError: Native library (com/sun/jna/android-aarch64/libjnidispatch.so) not found in resource path (.)
whenever I try to start the app on my device. I already tried to extract the file "libjnidispatch.so" from the JNA.jar file and put it in its respective subfolders (as described here) but that doesn't work.
The folder structure of the subfolder "app\src\main\jniLibs" of my app looks as follows:
app\src\main\jniLibs\arm64-v8a\myLibrary.so
...
app\src\main\jniLibs\arm64-v8a\libjnidispatch.so
app\src\main\jniLibs\armeabi\myLibrary.so
...
app\src\main\jniLibs\armeabi\libjnidispatch.so
app\src\main\jniLibs\armeabi-v7a\myLibrary.so
...
app\src\main\jniLibs\armeabi-v7a\libjnidispatch.so
app\src\main\jniLibs\mips\myLibrary.so
...
app\src\main\jniLibs\mips\libjnidispatch.so
app\src\main\jniLibs\mips64\myLibrary.so
...
app\src\main\jniLibs\mips64\libjnidispatch.so
app\src\main\jniLibs\x86\myLibrary.so
...
app\src\main\jniLibs\x86\libjnidispatch.so
app\src\main\jniLibs\x86_64\myLibrary.so
...
app\src\main\jniLibs\x86_64\libjnidispatch.so
Any help would be highly appreciated.
