Posted by
bmcclint on
Jul 01, 2020; 1:29pm
URL: https://forum.jogamp.org/Android-Studio-Package-Native-Libraries-into-APK-tp4040727.html
I am trying to get JOGAMPs JOAL (OpenAL) to package into an APK for my Android applications. The code compiles and generates the expected APK file but when executed on the device it gets a dlopen failed: library "//natives/android-aarch64//libgluegen-rt.so" not found.
I understand the error, or so I think. It cannot find the native library libgluegen-rt.so.
I agree it's not on the phone. I'm hoping to package it inside the APK. I suspect the error is telling me it cannot find it at the root of the classpath. Then IF it was in the APK I think it would find it. Or is it telling me it cannot find the .so file at the device level file system? I'm not sure.
For reference I created the same project first as a regular Java application in eclipse, using Gradle and shadowJar and I get the 'fat' jar I am expecting. At the root of the jar, there is a natives folder along with the expected folders and files. Runs as expected. Replicating as close as possible in a simple 'empty activity' project it compiles as well as installs and aborts.
I'd love to attach both the desktop and android projects for completeness but it looks like that's not an option.
Included in this post is the android build.gradle from the app folder, followed by the build.gradle from the java application. Lastly the output from logcat in android studio with the output from the execution. Line of interest is ... java.lang.UnsatisfiedLinkError: dlopen failed: library "//natives/android-aarch64//libgluegen-rt.so" not found ... but the stack trace is there.
Am I misreading the error message? I know the APK does not contain a natives folder via inspection. Just not sure what I am chasing. I wouldn't think I'd need to include all the sources manually and go down the NDK route but...
I'd appreciate any insight into what I am missing to build a 'fat' APK or 'uber' APK as I have seen it mentioned.
With respect to what I have tried, I've chased adding libs in the app folder, attempting the file tree route, many others I can't even remember right now. I suspect its something small I am missing OR it's just not possible. I'd hope for the former.
If there is something that needs clarification please ask. The development platform is ubuntu 19.10 up to date. The device is a galaxy S9. This is part of a larger OpenGL VR application which is working just fine. I want to move my positional audio engine from the desktop world to android.
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ANDROID
<pre><code>
apply plugin: 'com.android.application'
android {
compileSdkVersion 29
defaultConfig {
applicationId "android.joal"
minSdkVersion 22
targetSdkVersion 29
versionCode 1
versionName "1.0"
testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
}
}
}
dependencies {
implementation fileTree(dir: "libs", include: ["*.jar"])
implementation 'androidx.appcompat:appcompat:1.1.0'
implementation 'androidx.constraintlayout:constraintlayout:1.1.3'
// Parts of JOAL needed to compile.
implementation "org.jogamp.gluegen:gluegen-rt-android:2.3.2"
implementation "org.jogamp.joal:joal-android:2.3.2"
// Parts of JOAL (Native Libraries) needed to execute.
// These I suspect should reside at the root of the APK at...
// /natives/android-aarch64/*.so
runtimeOnly "org.jogamp.gluegen:gluegen-rt-android:2.3.2:natives-android-aarch64"
runtimeOnly "org.jogamp.joal:joal-android:2.3.2:natives-android-aarch64"
testImplementation 'junit:junit:4.12'
androidTestImplementation 'androidx.test.ext:junit:1.1.1'
androidTestImplementation 'androidx.test.espresso:espresso-core:3.2.0'
}
</code></pre>
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DESKTOP
<code><pre>
plugins {
id 'java'
id 'eclipse'
id 'com.github.johnrengelman.shadow' version '5.2.0'
}
repositories {
jcenter()
}
jar {
manifest {
attributes 'Main-Class': 'desktop.joal.App'
}
}
dependencies {
implementation "org.jogamp.gluegen:gluegen-rt:2.3.2"
implementation "org.jogamp.joal:joal:2.3.2"
runtimeOnly "org.jogamp.gluegen:gluegen-rt:2.3.2:natives-linux-amd64"
runtimeOnly "org.jogamp.joal:joal:2.3.2:natives-linux-amd64"
// Use JUnit test framework
testImplementation 'junit:junit:4.13'
}
shadowJar {
zip64 false
baseName = jar.baseName
exclude "**/*.sha1", "**/*.git"
}
assemble.dependsOn shadowJar
</code></pre>
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ANDROID LOGCAT
<code><pre>
2020-06-27 20:21:04.656 8729-8729/? E/Zygote: isWhitelistProcess - Process is Whitelisted
2020-06-27 20:21:04.658 8729-8729/? E/Zygote: accessInfo : 1
2020-06-27 20:21:04.672 8729-8729/? I/android.joal: Late-enabling -Xcheck:jni
2020-06-27 20:21:04.693 8729-8729/? E/android.joal: Unknown bits set in runtime_flags: 0x8000
2020-06-27 20:21:04.704 8729-8729/? D/ActivityThread: setConscryptValidator
2020-06-27 20:21:04.705 8729-8729/? D/ActivityThread: setConscryptValidator - put
2020-06-27 20:21:04.878 8729-8729/android.joal I/MultiWindowDecorSupport: updateCaptionType >> DecorView@28d56d5[], isFloating: false, isApplication: true, hasWindowDecorCaption: false, hasWindowControllerCallback: true
2020-06-27 20:21:04.878 8729-8729/android.joal D/MultiWindowDecorSupport: setCaptionType = 0, DecorView = DecorView@28d56d5[]
2020-06-27 20:21:04.916 8729-8729/android.joal W/android.joal: Accessing hidden method Landroid/view/View;->computeFitSystemWindows(Landroid/graphics/Rect;Landroid/graphics/Rect;)Z (greylist, reflection, allowed)
2020-06-27 20:21:04.917 8729-8729/android.joal W/android.joal: Accessing hidden method Landroid/view/ViewGroup;->makeOptionalFitsSystemWindows()V (greylist, reflection, allowed)
2020-06-27 20:21:04.966 8729-8729/android.joal D/AndroidRuntime: Shutting down VM
2020-06-27 20:21:04.969 8729-8729/android.joal E/AndroidRuntime: FATAL EXCEPTION: main
Process: android.joal, PID: 8729
java.lang.UnsatisfiedLinkError: dlopen failed: library "//natives/android-aarch64//libgluegen-rt.so" not found
at java.lang.Runtime.load0(Runtime.java:938)
at java.lang.System.load(System.java:1631)
at com.jogamp.common.jvm.JNILibLoaderBase.loadLibraryInternal(JNILibLoaderBase.java:624)
at com.jogamp.common.jvm.JNILibLoaderBase.access$000(JNILibLoaderBase.java:63)
at com.jogamp.common.jvm.JNILibLoaderBase$DefaultAction.loadLibrary(JNILibLoaderBase.java:106)
at com.jogamp.common.jvm.JNILibLoaderBase.loadLibrary(JNILibLoaderBase.java:487)
at com.jogamp.common.os.DynamicLibraryBundle$GlueJNILibLoader.loadLibrary(DynamicLibraryBundle.java:421)
at com.jogamp.common.os.Platform$1.run(Platform.java:317)
at java.security.AccessController.doPrivileged(AccessController.java:43)
at com.jogamp.common.os.Platform.<clinit>(Platform.java:287)
at com.jogamp.common.os.Platform.initSingleton(Platform.java:355)
at com.jogamp.openal.ALFactory.<clinit>(ALFactory.java:68)
at com.jogamp.openal.ALFactory.getAL(ALFactory.java:123)
at android.joal.MainActivity$App.initialize(MainActivity.java:57)
at android.joal.MainActivity.onCreate(MainActivity.java:30)
at android.app.Activity.performCreate(Activity.java:7955)
at android.app.Activity.performCreate(Activity.java:7944)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1307)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:3423)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3595)
at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:83)
at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:135)
at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:95)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2147)
at android.os.Handler.dispatchMessage(Handler.java:107)
at android.os.Looper.loop(Looper.java:237)
at android.app.ActivityThread.main(ActivityThread.java:7811)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:493)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1076)
</code></pre>