# JavaVTK Android Black Screen
**URL:** https://discourse.vtk.org/t/javavtk-android-black-screen/13725
**Category:** Support
**Tags:** code
**Created:** [April 17, 2024, 7:10am UTC](https://discourse.vtk.org/t/javavtk-android-black-screen/13725 "2024-04-17T07:10:42Z")
**Posts on this page:** 4
**Page:** 1
### Author:  [@jiajiadelequ](https://discourse.vtk.org/u/jiajiadelequ)
#### Post date: [April 17, 2024, 7:10am UTC](https://discourse.vtk.org/t/javavtk-android-black-screen/13725/1 "2024-04-17T07:10:42Z")
I run this example project in Android Studio, and at the beginning, the scene did not render and it was a black screen until foo -\>Interactor -\>HandleMotionEvent (action, eventPointer, numPtrs, xPtr, yPtr, idPtr, metaState) was triggered; The scene was only rendered, What happened behind this? What do I need to do to make it render properly
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### Author:  [@jiajiadelequ](https://discourse.vtk.org/u/jiajiadelequ)
#### Post date: [April 18, 2024, 3:39am UTC](https://discourse.vtk.org/t/javavtk-android-black-screen/13725/2 "2024-04-18T03:39:07Z")
I have relevant videos here to demonstrate this bug
[ ](https://www.youtube.com/watch?v=HSFQOLuL4S0)
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### Author:  [@jiajiadelequ](https://discourse.vtk.org/u/jiajiadelequ)
#### Post date: [April 19, 2024, 2:14am UTC](https://discourse.vtk.org/t/javavtk-android-black-screen/13725/3 "2024-04-19T02:14:56Z")
To add, when starting the JavaVTK example, I received an error here：
open /system\_ext/lib64/libmigl.so failed! dlopen - dlopen failed: library “/system\_ext/lib64/libmigl.so” needed or dlopened by “/system/lib/libEGL.so” is not accessible for the namespace “(default)”
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### Author:  [@jiajiadelequ](https://discourse.vtk.org/u/jiajiadelequ)
#### Post date: [April 19, 2024, 5:52am UTC](https://discourse.vtk.org/t/javavtk-android-black-screen/13725/4 "2024-04-19T05:52:00Z")
VTK compilation Module:
System : Ubuntu20.04 (you can use the [VMware Workstation Pro])
CMake : 3.27.6-linux-x86\_64 (use ninja generator compiler)
VTK CMake : VTK\_ANDROID\_BUILD[√] VTK\_OPENGL\_USE\_GLES[√]
NDK : r21e
ABI : armeabi-v7a
VTK integration Module:
IDE:Android Studio : 2022.3.1 Patch 2
JDK : 17
NDK : r21e
CMake:3.22.1
Gradle Plugin : 8.1.2
Gradle : 8.0