black belt at the bottom of the screen - immersive mode, portrait mode, nexus device, android 6.0 bug

I have found a bug in libgdx:

Steps to reproduce

1. You have to have nexus device, that does have on screen buttons (tested on nexus 5 and nexus 9), device must be running Android 6.0 (app worked correctly in previous versions)
2. Create fresh new project (can be only andorid, no need for ios, desktop or html)
3. edit AndoridLauncher.java, add folowing comfig: config.useImmersiveMode = true; to enable “full screen mode”
4. Set app to be portrait rather than landscape (In AndoridManifest.xml, set: android:screenOrientation="portrait")
5. Build & Deploy
6. Start app -> App runs fine -> App runs fine only on first start
7. Exit app by pressing back button twice
8. Start app again
9. There is black belt at the bottom of the screen as shown in screenshot)

Aditional info:

• belt can be removed by going out of the app and back into (middle button)
• belt can be removed by going to app switcher and back into the app
• our app is still in the development, therefore I cannot give you link to the play store to test it, but we have observed same problem with https://play.google.com/store/apps/details?id=com.freaxator.game100balls which presumably uses libgdx framework.
• I have used latest gdx-setup.jar and latest LibGDX 1.7.0

Logs

This is log of first startup (no black belt)

10-22 09:04:45.451 17959-17959/? I/art: Late-enabling -Xcheck:jni 10-22 09:04:45.484 17959-17965/? I/art: Debugger is no longer active 10-22 09:04:45.533 17959-17959/? I/Adreno-EGL: <qeglDrvAPI_eglInitialize:379>: QUALCOMM Build: 09/02/15, 76f806e, Ibddc658e36 10-22 09:04:45.665 17959-17959/? I/AndroidInput: sensor listener setup 10-22 09:04:45.673 17959-17982/? D/OpenGLRenderer: Use EGL_SWAP_BEHAVIOR_PRESERVED: true 10-22 09:04:45.715 17959-17982/? I/Adreno-EGL: <qeglDrvAPI_eglInitialize:379>: QUALCOMM Build: 09/02/15, 76f806e, Ibddc658e36 10-22 09:04:45.715 17959-17982/? I/OpenGLRenderer: Initialized EGL, version 1.4 10-22 09:04:45.746 17959-17978/? W/GL2JNIView: creating OpenGL ES 2.0 context 10-22 09:04:45.761 17959-17978/? I/GL2: all initialized 2 10-22 09:04:45.761 17959-17978/? I/AndroidGraphics: OGL renderer: Adreno ™ 330 10-22 09:04:45.761 17959-17978/? I/AndroidGraphics: OGL vendor: Qualcomm 10-22 09:04:45.762 17959-17978/? I/AndroidGraphics: OGL version: OpenGL ES 3.0 V@127.0 AU@ (GIT@Ibddc658e36) 10-22 09:04:45.762 17959-17978/? I/AndroidGraphics: OGL extensions: GL_AMD_compressed_ATC_texture GL_AMD_performance_monitor GL_AMD_program_binary_Z400 GL_EXT_debug_label GL_EXT_debug_marker GL_EXT_discard_framebuffer GL_EXT_robustness GL_EXT_texture_format_BGRA8888 GL_EXT_texture_type_2_10_10_10_REV GL_NV_fence GL_OES_compressed_ETC1_RGB8_texture GL_OES_depth_texture GL_OES_depth24 GL_OES_EGL_image GL_OES_EGL_sync GL_OES_EGL_image_external GL_OES_element_index_uint GL_OES_fbo_render_mipmap GL_OES_fragment_precision_high GL_OES_get_program_binary GL_OES_packed_depth_stencil GL_OES_depth_texture_cube_map GL_OES_rgb8_rgba8 GL_OES_standard_derivatives GL_OES_texture_3D GL_OES_texture_float GL_OES_texture_half_float GL_OES_texture_half_float_linear GL_OES_texture_npot GL_OES_vertex_half_float GL_OES_vertex_type_10_10_10_2 GL_OES_vertex_array_object GL_QCOM_alpha_test GL_QCOM_binning_control GL_QCOM_driver_control GL_QCOM_perfmon_global_mode GL_QCOM_extended_get GL_QCOM_extended_get2 GL_QCOM_tiled_rendering GL_QCOM_writeonly_rendering GL_EXT_sRGB GL_EXT_sRGB_write_control GL_EXT_texture_sRGB_decode GL_EXT_texture_filter_anisotropic GL_EXT_multisampled_render_to_texture GL_EXT_color_buffer_float > GL_EXT_color_buffer_half_float GL_EXT_disjoint_timer_query 10-22 09:04:45.763 17959-17978/? W/Adreno-EGL: <qeglDrvAPI_eglGetConfigAttrib:607>: EGL_BAD_ATTRIBUTE 10-22 09:04:45.763 17959-17978/? W/Adreno-EGL: <qeglDrvAPI_eglGetConfigAttrib:607>: EGL_BAD_ATTRIBUTE 10-22 09:04:45.763 17959-17978/? I/AndroidGraphics: framebuffer: (5, 6, 5, 0) 10-22 09:04:45.763 17959-17978/? I/AndroidGraphics: depthbuffer: (16) 10-22 09:04:45.763 17959-17978/? I/AndroidGraphics: stencilbuffer: (0) 10-22 09:04:45.763 17959-17978/? I/AndroidGraphics: samples: (0) 10-22 09:04:45.763 17959-17978/? I/AndroidGraphics: coverage sampling: (false) 10-22 09:04:45.767 17959-17978/? I/AndroidGraphics: Managed meshes/app: { } 10-22 09:04:45.767 17959-17978/? I/AndroidGraphics: Managed textures/app: { } 10-22 09:04:45.767 17959-17978/? I/AndroidGraphics: Managed cubemap/app: { } 10-22 09:04:45.767 17959-17978/? I/AndroidGraphics: Managed shaders/app: { } 10-22 09:04:45.767 17959-17978/? I/AndroidGraphics: Managed buffers/app: { }

This is log of second startup (bug, black belt)

10-22 09:02:41.778 15895-15895/? I/art: Late-enabling -Xcheck:jni 10-22 09:02:41.866 15895-15895/com.mygdx.game.android I/Adreno-EGL: <qeglDrvAPI_eglInitialize:379>: QUALCOMM Build: 09/02/15, 76f806e, Ibddc658e36 10-22 09:02:42.004 15895-15895/com.mygdx.game.android I/AndroidInput: sensor listener setup 10-22 09:02:42.010 15895-15936/com.mygdx.game.android D/OpenGLRenderer: Use EGL_SWAP_BEHAVIOR_PRESERVED: true 10-22 09:02:42.052 15895-15936/com.mygdx.game.android I/Adreno-EGL: <qeglDrvAPI_eglInitialize:379>: QUALCOMM Build: 09/02/15, 76f806e, Ibddc658e36 10-22 09:02:42.052 15895-15936/com.mygdx.game.android I/OpenGLRenderer: Initialized EGL, version 1.4 10-22 09:02:42.072 15895-15930/com.mygdx.game.android W/GL2JNIView: creating OpenGL ES 2.0 context 10-22 09:02:42.085 15895-15930/com.mygdx.game.android I/GL2: all initialized 2 10-22 09:02:42.086 15895-15930/com.mygdx.game.android I/AndroidGraphics: OGL renderer: Adreno ™ 330 10-22 09:02:42.086 15895-15930/com.mygdx.game.android I/AndroidGraphics: OGL vendor: Qualcomm 10-22 09:02:42.086 15895-15930/com.mygdx.game.android I/AndroidGraphics: OGL version: OpenGL ES 3.0 V@127.0 AU@ (GIT@Ibddc658e36) 10-22 09:02:42.086 15895-15930/com.mygdx.game.android I/AndroidGraphics: OGL extensions: GL_AMD_compressed_ATC_texture GL_AMD_performance_monitor GL_AMD_program_binary_Z400 GL_EXT_debug_label GL_EXT_debug_marker GL_EXT_discard_framebuffer GL_EXT_robustness GL_EXT_texture_format_BGRA8888 GL_EXT_texture_type_2_10_10_10_REV GL_NV_fence GL_OES_compressed_ETC1_RGB8_texture GL_OES_depth_texture GL_OES_depth24 GL_OES_EGL_image GL_OES_EGL_sync GL_OES_EGL_image_external GL_OES_element_index_uint GL_OES_fbo_render_mipmap GL_OES_fragment_precision_high GL_OES_get_program_binary GL_OES_packed_depth_stencil GL_OES_depth_texture_cube_map GL_OES_rgb8_rgba8 GL_OES_standard_derivatives GL_OES_texture_3D GL_OES_texture_float GL_OES_texture_half_float GL_OES_texture_half_float_linear GL_OES_texture_npot GL_OES_vertex_half_float GL_OES_vertex_type_10_10_10_2 GL_OES_vertex_array_object GL_QCOM_alpha_test GL_QCOM_binning_control GL_QCOM_driver_control GL_QCOM_perfmon_global_mode GL_QCOM_extended_get GL_QCOM_extended_get2 GL_QCOM_tiled_rendering GL_QCOM_writeonly_rendering GL_EXT_sRGB GL_EXT_sRGB_write_control GL_EXT_texture_sRGB_decode GL_EXT_texture_filter_anisotropic GL_EXT_multisampled_render_to_texture GL_EXT_color_buffer_float > GL_EXT_color_buffer_half_float GL_EXT_disjoint_timer_query 10-22 09:02:42.086 15895-15930/com.mygdx.game.android W/Adreno-EGL: <qeglDrvAPI_eglGetConfigAttrib:607>: EGL_BAD_ATTRIBUTE 10-22 09:02:42.086 15895-15930/com.mygdx.game.android W/Adreno-EGL: <qeglDrvAPI_eglGetConfigAttrib:607>: EGL_BAD_ATTRIBUTE 10-22 09:02:42.086 15895-15930/com.mygdx.game.android I/AndroidGraphics: framebuffer: (5, 6, 5, 0) 10-22 09:02:42.087 15895-15930/com.mygdx.game.android I/AndroidGraphics: depthbuffer: (16) 10-22 09:02:42.087 15895-15930/com.mygdx.game.android I/AndroidGraphics: stencilbuffer: (0) 10-22 09:02:42.087 15895-15930/com.mygdx.game.android I/AndroidGraphics: samples: (0) 10-22 09:02:42.087 15895-15930/com.mygdx.game.android I/AndroidGraphics: coverage sampling: (false) 10-22 09:02:42.090 15895-15930/com.mygdx.game.android I/AndroidGraphics: Managed meshes/app: { } 10-22 09:02:42.090 15895-15930/com.mygdx.game.android I/AndroidGraphics: Managed textures/app: { } 10-22 09:02:42.090 15895-15930/com.mygdx.game.android I/AndroidGraphics: Managed cubemap/app: { } 10-22 09:02:42.091 15895-15930/com.mygdx.game.android I/AndroidGraphics: Managed shaders/app: { } 10-22 09:02:42.091 15895-15930/com.mygdx.game.android I/AndroidGraphics: Managed buffers/app: { }

[arclee]

I have the same issue, I fix this issue by setting immersive mode few seconds latter (Handler.postdelayed) in onResume call.

[Over17]

FYI: I fixed this issue in Unity by explicitly applying Material theme.