Hi I have been compiling a JavaFX app for Android using the Dalvik SDK. I have managed to resolve all the dependencies and compiled into an APK. This APK will install on Android devices but doesn't work on all of them. I have tried it on a number of devices some display fine but some just show a black screen.
I have modified the HelloWorld app included with the Dalvik SDK by changing the code to debug my problem. It works on all of my devices with just a label on the screen but as soon as I add a sphere into the scene it just displays a black screen on some devices (some devices work and some don't). I have searched on the internet and suggestions indicate that this may be a memory issue but I have tried setting android.monocle.stacksize = 12800 in the javafx.platform.properties but this has had no effect. I have also tried printing out the result of Platform.isSupported(ConditionalFeature.SCENE3D) but confusingly this shows true despite the error.
I have a full stack trace for the issue…
05-12 09:10:06.584 4053 4181 I ActivityManager: Start proc 8921:org.javafxports.helloworld/u0a56 for activity org.javafxports.helloworld/javafxports.android.FXActivity
05-12 09:10:06.649 8921 8921 I art : Not late-enabling -Xcheck:jni (already on)
05-12 09:10:06.731 8921 8921 I MultiDex: VM with version 2.1.0 has multidex support
05-12 09:10:06.731 8921 8921 I MultiDex: install
05-12 09:10:06.731 8921 8921 I MultiDex: VM has multidex support, MultiDex support library is disabled.
05-12 09:10:06.735 8921 8921 V FXActivity: Initializing JavaFX Platform, using 8.60.9-SNAPSHOT
05-12 09:10:06.745 8921 8921 V FXActivity native: Loading JavaFXDalvik library
05-12 09:10:06.751 8921 8921 I System.out: usetextureview = false, useswipekeyboard = false
05-12 09:10:06.753 8921 8921 V FXActivity: onCreate called, using 8.60.9-SNAPSHOT
05-12 09:10:06.754 8921 8934 V FXActivity native: Notification queue instance created.
05-12 09:10:06.754 8921 8934 V FXActivity native: Notification queue started
05-12 09:10:06.758 4172 4172 V PhoneStatusBar: setLightsOn(true)
05-12 09:10:06.789 8921 8921 V FXActivity native: appDataDir: /data/user/0/org.javafxports.helloworld
05-12 09:10:06.790 8921 8921 V FXActivity: onStart
05-12 09:10:06.790 8921 8921 V FXActivity: onResume
05-12 09:10:06.827 8921 8921 V FXEntity: Surface created.
05-12 09:10:06.828 8921 8921 V FXActivity native: [JVDBG] SURFACE created native android window at 0xf4a94608, surface = 0xffda7390
05-12 09:10:06.970 8921 8921 I System.out: user.locale=en-US
05-12 09:10:06.970 8921 8921 I System.out: monocle.stackSize=128000
05-12 09:10:06.970 8921 8921 I System.out: prism.text=native
05-12 09:10:06.970 8921 8921 I System.out: java.vendor.url=http://www.android.com/
05-12 09:10:06.970 8921 8921 I System.out: java.ext.dirs=
05-12 09:10:06.970 8921 8921 I System.out: line.separator=
05-12 09:10:06.970 8921 8921 I System.out: file.encoding=UTF-8
05-12 09:10:06.970 8921 8921 I System.out: java.runtime.version=0.9
05-12 09:10:06.970 8921 8921 I System.out: prism.dirtyopts=true
05-12 09:10:06.970 8921 8921 I System.out: user.name=root
05-12 09:10:06.970 8921 8921 I System.out: monocle.input.touchRadius=1
05-12 09:10:06.970 8921 8921 I System.out: java.compiler=
05-12 09:10:06.970 8921 8921 I System.out: android.icu.unicode.version=7.0
05-12 09:10:06.970 8921 8921 I System.out: prism.debugfonts=true
05-12 09:10:06.970 8921 8921 I System.out: java.version=0
05-12 09:10:06.970 8921 8921 I System.out: android.icu.library.version=55.1
05-12 09:10:06.970 8921 8921 I System.out: use.egl=true
05-12 09:10:06.971 8921 8921 I System.out: embedded=monocle
05-12 09:10:06.971 8921 8921 I System.out: prism.lcdtext=false
05-12 09:10:06.971 8921 8921 I System.out: os.arch=armv8l
05-12 09:10:06.971 8921 8921 I System.out: java.io.tmpdir=/data/user/0/org.javafxports.hellowor...
05-12 09:10:06.971 8921 8921 I System.out: glass.platform=Monocle
05-12 09:10:06.971 8921 8921 I System.out: android.zlib.version=1.2.8
05-12 09:10:06.971 8921 8921 I System.out: user.language=en
05-12 09:10:06.971 8921 8921 I System.out: java.vm.version=2.1.0
05-12 09:10:06.971 8921 8921 I System.out: com.sun.javafx.isEmbedded=true
05-12 09:10:06.971 8921 8921 I System.out: prism.glDepthSize=16
05-12 09:10:06.971 8921 8921 I System.out: path.separator=:
05-12 09:10:06.971 8921 8921 I System.out: java.runtime.name=Android Runtime
05-12 09:10:06.971 8921 8921 I System.out: java.specification.version=0.9
05-12 09:10:06.971 8921 8921 I System.out: user.dir=/
05-12 09:10:06.971 8921 8921 I System.out: prism.maxTextureSize=2048
05-12 09:10:06.971 8921 8921 I System.out: java.vm.specification.vendor=The Android Project
05-12 09:10:06.971 8921 8921 I System.out: java.vm.name=Dalvik
05-12 09:10:06.971 8921 8921 I System.out: monocle.platform=Android
05-12 09:10:06.971 8921 8921 I System.out: log.lens=FINEST
05-12 09:10:06.971 8921 8921 I System.out: java.vm.specification.version=0.9
05-12 09:10:06.971 8921 8921 I System.out: user.home=
05-12 09:10:06.971 8921 8921 I System.out: java.specification.name=Dalvik Core Library
05-12 09:10:06.971 8921 8921 I System.out: file.separator=/
05-12 09:10:06.971 8921 8921 I System.out: java.library.path=/vendor/lib:/system/lib
05-12 09:10:06.971 8921 8921 I System.out: user.variant=
05-12 09:10:06.971 8921 8921 I System.out: os.version=3.14.29
05-12 09:10:06.971 8921 8921 I System.out: java.boot.class.path=/system/framework/core-libart.jar:/sy...
05-12 09:10:06.971 8921 8921 I System.out: DALVIK.prism.verbose=true
05-12 09:10:06.971 8921 8921 I System.out: java.vm.specification.name=Dalvik Virtual Machine Specification
05-12 09:10:06.971 8921 8921 I System.out: javafx.platform=android
05-12 09:10:06.971 8921 8921 I System.out: glass.lens=eglfb
05-12 09:10:06.971 8921 8921 I System.out: os.name=Linux
05-12 09:10:06.971 8921 8921 I System.out: user.region=US
05-12 09:10:06.971 8921 8921 I System.out: java.class.path=.
05-12 09:10:06.971 8921 8921 I System.out: android.icu.impl.ICUBinary.dataPath=/data/misc/zoneinfo/current/icu:/syst...
05-12 09:10:06.971 8921 8921 I System.out: prism.verbose=true
05-12 09:10:06.971 8921 8921 I System.out: prism.vsync=false
05-12 09:10:06.971 8921 8921 I System.out: java.specification.vendor=The Android Project
05-12 09:10:06.971 8921 8921 I System.out: java.vm.vendor=The Android Project
05-12 09:10:06.971 8921 8921 I System.out: prism.allowhidpi=false
05-12 09:10:06.972 8921 8921 I System.out: java.vendor=The Android Project
05-12 09:10:06.972 8921 8921 I System.out: http.agent=Dalvik/2.1.0 (Linux; U; Android 6.0.1...
05-12 09:10:06.972 8921 8921 I System.out: android.icu.cldr.version=27.0.1
05-12 09:10:06.972 8921 8921 I System.out: android.openssl.version=BoringSSL
05-12 09:10:06.972 8921 8921 I System.out: java.home=/system
05-12 09:10:06.972 8921 8921 I System.out: java.vm.vendor.url=http://www.android.com/
05-12 09:10:06.972 8921 8921 I System.out: java.class.version=50.0
05-12 09:10:06.972 8921 8921 V DalvikLauncher: Launch JavaFX application on DALVIK vm.
05-12 09:10:06.976 8921 8921 V DalvikLauncher: We have JavaFX on our current (base) classpath, registered exit listener
05-12 09:10:06.978 8921 8921 V DalvikLauncher: application class: [class org.javafxports.helloworld.HelloAndroid]
05-12 09:10:06.978 8921 8921 V DalvikLauncher: preloader class: [null]
05-12 09:10:06.978 8921 8921 V DalvikLauncher: javafx application class: [class javafx.application.Application]
05-12 09:10:06.978 8921 8921 V DalvikLauncher: javafx launcher class: [class com.sun.javafx.application.LauncherImpl]
05-12 09:10:06.978 8921 8921 V DalvikLauncher: launch application method: [public static void com.sun.javafx.application.LauncherImpl.launchApplication(java.lang.Class,java.lang.Class,java.lang.String[])]
05-12 09:10:06.979 8921 8921 V FXEntity: Called Surface changed [1280, 696], format 4
05-12 09:10:06.979 8921 8921 V FXActivity native: [JVDBG] SURFACE created native android window at 0xf4a94608, surface = 0xffda7370
05-12 09:10:06.980 8921 8921 V FXEntity: Called Surface redraw needed
05-12 09:10:06.989 8921 8921 V FXEntity: Called Surface redraw needed
05-12 09:10:07.018 4053 4075 I ActivityManager: Displayed org.javafxports.helloworld/javafxports.android.FXActivity: +461ms
05-12 09:10:07.020 8921 8938 I System.out: Prism pipeline init order: es2
05-12 09:10:07.020 8921 8938 I System.out: Using native-based Pisces rasterizer
05-12 09:10:07.020 8921 8938 I System.out: Using dirty region optimizations
05-12 09:10:07.020 8921 8938 I System.out: Using system sized mask for primitives
05-12 09:10:07.021 8921 8938 I System.out: Not forcing power of 2 sizes for textures
05-12 09:10:07.021 8921 8938 I System.out: Using hardware CLAMP_TO_ZERO mode
05-12 09:10:07.021 8921 8938 I System.out: Not opting in for HiDPI pixel scaling
05-12 09:10:07.026 8921 8939 I System.out: Prism pipeline name = com.sun.prism.es2.ES2Pipeline
05-12 09:10:07.029 8921 8939 I System.out: Loading ES2 native library ... prism_es2_monocle
05-12 09:10:07.039 8921 8939 I System.out: succeeded.
05-12 09:10:07.040 8921 8939 I System.out: GLFactory using com.sun.prism.es2.MonocleGLFactory
05-12 09:10:07.052 8921 8939 I GLASS : I have to Call dlopen libGLESv2.so
05-12 09:10:07.052 8921 8939 I GLASS : handle = 0xf712dd04
05-12 09:10:07.052 8921 8939 I GLASS : I have to Call dlopen libEGL.so
05-12 09:10:07.052 8921 8939 I GLASS : handle = 0xf712d9c4
05-12 09:10:07.053 8921 8939 I GLASS : Binding to libactivity.so
05-12 09:10:07.054 8921 8939 I GLASS : GetNativeWindow = 0xf4ad86dc, getDensitiy = 0xf4ad86ec
05-12 09:10:07.054 8921 8935 V FXEntity: notify_glassHasStarted called in FXActivity. register device now.
05-12 09:10:07.072 8921 8939 E libEGL : eglMakeCurrent:800 error 3009 (EGL_BAD_MATCH)
05-12 09:10:07.076 8921 8939 I System.out: (X) Got class = class com.sun.prism.es2.ES2Pipeline
05-12 09:10:07.077 8921 8939 I System.out: Initialized prism pipeline: com.sun.prism.es2.ES2Pipeline
05-12 09:10:07.083 8921 8943 I DENSITY : GETDENSITY, answer = 1.000000
05-12 09:10:07.097 8921 8939 I System.out: Maximum supported texture size: 4096
05-12 09:10:07.097 8921 8939 I System.out: Maximum texture size clamped to 2048
05-12 09:10:07.097 8921 8939 I System.out: Non power of two texture support = true
05-12 09:10:07.098 8921 8939 I System.out: Maximum number of vertex attributes = 16
05-12 09:10:07.098 8921 8939 I System.out: Maximum number of uniform vertex components = 1024
05-12 09:10:07.098 8921 8939 I System.out: Maximum number of uniform fragment components = 1024
05-12 09:10:07.098 8921 8939 I System.out: Maximum number of varying components = 48
05-12 09:10:07.098 8921 8939 I System.out: Maximum number of texture units usable in a vertex shader = 0
05-12 09:10:07.098 8921 8939 I System.out: Maximum number of texture units usable in a fragment shader = 8
05-12 09:10:07.098 8921 8939 I System.out: Graphics Vendor: ARM
05-12 09:10:07.098 8921 8939 I System.out: Renderer: Mali-450 MP
05-12 09:10:07.098 8921 8939 I System.out: Version: OpenGL ES 2.0
05-12 09:10:07.104 8921 8935 I System.out: register device done
05-12 09:10:07.107 8921 8943 W System.err: vsync: false vpipe: true
05-12 09:10:07.107 8921 8943 I System.out: [MON] Create device
05-12 09:10:07.109 8921 8943 I System.out: [MON] Create device done, add done
05-12 09:10:07.257 8921 8943 W System.err: Loading FontFactory com.sun.javafx.font.freetype.FTFactory
05-12 09:10:07.258 8921 8943 W System.err: Subpixel: enabled
05-12 09:10:07.272 8921 8943 W System.err: Freetype2 Loaded (version 2.10.0)
05-12 09:10:07.272 8921 8943 W System.err: LCD support Enabled
05-12 09:10:07.302 8921 8943 W art : Before Android 4.1, method void com.sun.javafx.scene.transform.TransformUtils$ImmutableTransform.ensureCanTransform2DPoint() would have incorrectly overridden the package-private method in javafx.scene.transform.Transform
05-12 09:10:07.784 8921 8943 W art : Before Android 4.1, method double javafx.scene.text.TextFlow.computeChildPrefAreaHeight(javafx.scene.Node, javafx.geometry.Insets) would have incorrectly overridden the package-private method in javafx.scene.layout.Region
05-12 09:10:07.784 8921 8943 W art : Before Android 4.1, method double javafx.scene.text.TextFlow.computeChildPrefAreaWidth(javafx.scene.Node, javafx.geometry.Insets) would have incorrectly overridden the package-private method in javafx.scene.layout.Region
05-12 09:10:08.001 8921 8939 I System.out: max rectangle texture cell size = 62
05-12 09:10:08.019 8921 8939 I System.out: wrap rectangle texture = 2 x 2
05-12 09:10:08.024 8921 8939 I System.out: ES2ResourceFactory: Prism - createStockShader: AlphaTexture_Color.frag
05-12 09:10:08.287 8921 8939 E javafx : Program link log: L0010 Uniform 'color' differ on precision
05-12 09:10:08.287 8921 8939 W System.err: java.lang.RuntimeException: Error creating shader program
05-12 09:10:08.288 8921 8939 W System.err: at com.sun.prism.es2.ES2Shader.createFromSource(ES2Shader.java:158)
05-12 09:10:08.288 8921 8939 W System.err: at com.sun.prism.es2.ES2PhongShader.getShader(ES2PhongShader.java:190)
05-12 09:10:08.288 8921 8939 W System.err: at com.sun.prism.es2.ES2Context.getPhongShader(ES2Context.java:122)
05-12 09:10:08.288 8921 8939 W System.err: at com.sun.prism.es2.ES2Context.renderMeshView(ES2Context.java:451)
05-12 09:10:08.288 8921 8939 W System.err: at com.sun.prism.es2.ES2MeshView.render(ES2MeshView.java:119)
05-12 09:10:08.288 8921 8939 W System.err: at com.sun.javafx.sg.prism.NGShape3D.renderMeshView(NGShape3D.java:179)
05-12 09:10:08.288 8921 8939 W System.err: at com.sun.javafx.sg.prism.NGShape3D.renderContent(NGShape3D.java:201)
05-12 09:10:08.288 8921 8939 W System.err: at com.sun.javafx.sg.prism.NGNode.doRender(NGNode.java:2056)
05-12 09:10:08.288 8921 8939 W System.err: at com.sun.javafx.sg.prism.NGNode.render(NGNode.java:1948)
05-12 09:10:08.288 8921 8939 W System.err: at com.sun.javafx.sg.prism.NGGroup.renderContent(NGGroup.java:235)
05-12 09:10:08.288 8921 8939 W System.err: at com.sun.javafx.sg.prism.NGRegion.renderContent(NGRegion.java:576)
05-12 09:10:08.288 8921 8939 W System.err: at com.sun.javafx.sg.prism.NGNode.doRender(NGNode.java:2056)
05-12 09:10:08.288 8921 8939 W System.err: at com.sun.javafx.sg.prism.NGNode.render(NGNode.java:1948)
05-12 09:10:08.288 8921 8939 W System.err: at com.sun.javafx.tk.quantum.ViewPainter.doPaint(ViewPainter.java:477)
05-12 09:10:08.288 8921 8939 W System.err: at com.sun.javafx.tk.quantum.ViewPainter.paintImpl(ViewPainter.java:330)
05-12 09:10:08.288 8921 8939 W System.err: at com.sun.javafx.tk.quantum.PresentingPainter.run(PresentingPainter.java:91)
05-12 09:10:08.288 8921 8939 W System.err: at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:423)
05-12 09:10:08.288 8921 8939 W System.err: at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:278)
05-12 09:10:08.288 8921 8939 W System.err: at com.sun.javafx.tk.RenderJob.run(RenderJob.java:58)
05-12 09:10:08.288 8921 8939 W System.err: at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1113)
05-12 09:10:08.288 8921 8939 W System.err: at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:588)
05-12 09:10:08.288 8921 8939 W System.err: at com.sun.javafx.tk.quantum.QuantumRenderer$PipelineRunnable.run(QuantumRenderer.java:125)
05-12 09:10:08.288 8921 8939 W System.err: at java.lang.Thread.run(Thread.java:818)