Black screen on phone

Question

I have problem with my 'first' application on android. When I run my program I see only black screen. I found some information and I used Android.sdk abd.exe file to check all running threads on my phone.

I run cmd and set path to android.sdk abd file. Then I executed this commend:

adb logcat -v threadtime

After my console shows this:

01-14 11:54:36.798  2210  2735 D InputDispatcher: notifyMotion - action=ACTION_DOWN(0), id=0, tooltype=1, deviceId=5, source=0x1002, policyFlags=0x0, flags=0x0, metaState=0x0, buttonState=0x0, edgeFlags=0x0, eventTime=1813030619000, downTime=1813030619000,
01-14 11:54:36.799  2210  2734 D InputTransport: channel 'fae6efc com.lge.launcher2/com.lge.launcher2.Launcher (server)' : action=ACTION_DOWN(0), id=0, tooltype=1, deviceId=5, source=0x1002, flags=0x0, edgeFlags=0x0, metaState=0x0, buttonState=0x0, downTime=1813030619000, eventTime=1813030619000, pointerCount=1
01-14 11:54:36.799  2210  2734 D InputTransport: channel '5c6a310 com.android.systemui.ImageWallpaper (server)' : action=ACTION_DOWN(0), id=0, tooltype=1, deviceId=5, source=0x1002, flags=0x1, edgeFlags=0x0, metaState=0x0, buttonState=0x0, downTime=1813030619000, eventTime=1813030619000, pointerCount=1
01-14 11:54:36.800  3567  3567 I ViewRootImpl: ViewRoot's Touch Event : ACTION_DOWN
01-14 11:54:36.847  2210  2735 D InputDispatcher: notifyMotion - action=ACTION_UP(0), id=0, tooltype=1, deviceId=5, source=0x1002, policyFlags=0x0, flags=0x0, metaState=0x0, buttonState=0x0, edgeFlags=0x0, eventTime=1813079025000, downTime=1813030619000,
01-14 11:54:36.847  2210  2734 D InputTransport: channel 'fae6efc com.lge.launcher2/com.lge.launcher2.Launcher (server)' : action=ACTION_UP(0), id=0, tooltype=1, deviceId=5, source=0x1002, flags=0x0, edgeFlags=0x0, metaState=0x0, buttonState=0x0, downTime=1813030619000, eventTime=1813079025000, pointerCount=1
01-14 11:54:36.847  2210  2734 D InputTransport: channel '5c6a310 com.android.systemui.ImageWallpaper (server)' : action=ACTION_UP(0), id=0, tooltype=1, deviceId=5, source=0x1002, flags=0x1, edgeFlags=0x0, metaState=0x0, buttonState=0x0, downTime=1813030619000, eventTime=1813079025000, pointerCount=1
01-14 11:54:36.849  3567  3567 I ViewRootImpl: ViewRoot's Touch Event : ACTION_UP
01-14 11:54:36.850  2210  2940 V SoundPool: play sampleID=1, leftVolume=1.000000, rightVolume=1.000000, priority=0, loop=0, rate=1.000000
01-14 11:54:36.851  2210  2940 V SoundPool: Allocated recycled channel for same sampleID
01-14 11:54:36.851  2210  2940 V SoundPool: play channel 0xb876a680 state = 0
01-14 11:54:36.851  2210  2940 V SoundPool: SoundChannel::play 0xb876a680: sampleID=1, channelID=83, leftVolume=1.000000, rightVolume=1.000000, priority=0, loop=0, rate=1.000000
01-14 11:54:36.851  3567  3567 I Timeline: Timeline: Activity_launch_request id:com.ordenimagesaver time:1813082
01-14 11:54:36.851   403  3522 V APM::AudioPolicyManager: getOutput() device 2, stream 1, samplingRate 0, format 0, channelMask 3, flags 0
01-14 11:54:36.851   403  3522 V APM::AudioPolicyManager:   getOutputForDevice() returns output 2
01-14 11:54:36.851  2210  2940 D AudioSystem: getIoDescriptor: ioHandle = 2, index = 0, mIoDescriptors = 0xb897f080
01-14 11:54:36.851  2210  2940 V AudioSystem: getFrameCount() output 2, frameCount 960
01-14 11:54:36.851   403  2941 V APM::AudioPolicyManager: getOutput() device 2, stream 1, samplingRate 0, format 0, channelMask 3, flags 0
01-14 11:54:36.851   403  2941 V APM::AudioPolicyManager:   getOutputForDevice() returns output 2
01-14 11:54:36.852  2210  2940 D AudioSystem: getIoDescriptor: ioHandle = 2, index = 0, mIoDescriptors = 0xb897f080
01-14 11:54:36.852  2210  2940 V AudioSystem: getSamplingRate() output 2, sampling rate 48000
01-14 11:54:36.852  2210  2940 V SoundPool: reusing track 0xb8b6b2a8 for sample 1
01-14 11:54:36.852  2210  2940 V AudioTrack: setLoop_l 0 0 0
01-14 11:54:36.852  2210  2940 D AudioTrack: start(): 0xb8b6b2a8
01-14 11:54:36.852   403   403 V AudioFlinger_Tracks: start(4096), calling pid 2210 session 13
01-14 11:54:36.852   403   403 V AudioFlinger_Tracks: ? => ACTIVE (4096) on thread 0xb7fccd88
01-14 11:54:36.852   403   403 V APM::AudioPolicyManager: startOutput() output 2, stream 1, session 13
01-14 11:54:36.852   403   403 V APM::AudioPolicyManager: startOutput() output primary->(primary)(2), stream 1, session 13
01-14 11:54:36.852   403   403 V APM::AudioPolicyManager: setBeaconMute(1) mBeaconMuteRefCount=1 mBeaconPlayingRefCount=0
01-14 11:54:36.852   403   403 V APM::AudioOutputDescriptor: changeRefCount() stream 1, count 1
01-14 11:54:36.852   403   403 V APM::AudioPolicyManager: getNewOutputDevice() selected device 2
01-14 11:54:36.852   403   403 V APM::AudioPolicyManager: setOutputDevice() device 0002 delayMs 0
01-14 11:54:36.852   403   403 V APM::AudioPolicyManager: setOutputDevice() prevDevice 0x0002
01-14 11:54:36.852   403   403 V APM::AudioPolicyEngine: getDeviceForStrategy() remove speaker device. strategy 9 ringermode 1
01-14 11:54:36.852   403   403 V APM::AudioPolicyEngine: getDeviceForStrategy() add headphone device. strategy 9 ringermode 1
01-14 11:54:36.852   403   403 V APM::AudioPolicyManager: setOutputDevice() changing device
01-14 11:54:36.852   403   403 V AudioPolicyService: AudioCommandThread() adding create patch delay 0
01-14 11:54:36.852   403   403 V AudioPolicyService: inserting command: 7 at index 0, num commands 0
01-14 11:54:36.852  2210  3556 I ActivityManager: START u0 {act=android.intent.action.MAIN cat=[android.intent.category.LAUNCHER] flg=0x10200000 cmp=com.ordenimagesaver/javafxports.android.FXActivity} from uid 10022 on display 0
01-14 11:54:36.855   403  1455 V AudioPolicyService: AudioCommandThread() processing create audio patch
01-14 11:54:36.855   403  1455 V AudioFlinger_Threads: sendConfigEvent_l() num events 1 event 3
01-14 11:54:36.856   403  1625 V AudioFlinger_Threads: thread 0xb17b1008 type 0 TID 1625 waking up
01-14 11:54:36.856   403  1625 V AudioFlinger_Threads: processConfigEvents_l() remaining events 1
01-14 11:54:36.856   403  1625 D audio_hw_primary: out_set_parameters: enter: usecase(0: deep-buffer-playback) kvpairs: routing=2
01-14 11:54:36.856   403  1625 V audio_hw_primary: out_set_parameters: exit: code(0)
01-14 11:54:36.856   403  1625 V AudioFlinger_Threads: processConfigEvents_l() DONE thread 0xb17b1008
01-14 11:54:36.857   403  1455 V AudioPolicyService: -AudioCommandThread 7
01-14 11:54:36.857   403  1455 V AudioPolicyService: AudioCommandThread() going to sleep
01-14 11:54:36.857   403   403 V APM::AudioPolicyManager: setOutputDevice() createAudioPatch returned 0 patchHandle 103num_sources 1 num_sinks 1
01-14 11:54:36.857   403   403 V AudioPolicyService: AudioCommandThread() adding update audio patch list
01-14 11:54:36.857   403   403 V AudioPolicyService: inserting command: 10 at index 0, num commands 0
01-14 11:54:36.857   403   403 V AudioPolicyService: AudioCommandThread() adding set voice volume volume 0.571429, delayMs 0
01-14 11:54:36.857   403   403 V AudioPolicyService: inserting command: 4 at index 0, num commands 0
01-14 11:54:36.857   403  1455 V AudioPolicyService: AudioCommandThread() processing set voice volume volume 0.571429
01-14 11:54:36.857   403  1455 V AudioPolicyService: -AudioCommandThread 4
01-14 11:54:36.857   403  1455 V AudioPolicyService: AudioCommandThread() going to sleep
01-14 11:54:36.857   403   403 V AudioPolicyService: AudioCommandThread() adding set parameter string fm_volume=0.1115583479, io 2 ,delay 0
01-14 11:54:36.857   403   403 V AudioPolicyService: inserting command: 3 at index 0, num commands 0
01-14 11:54:36.857   403  1455 V AudioPolicyService: AudioCommandThread() processing set parameters string fm_volume=0.1115583479, io 2
01-14 11:54:36.857   403  1455 V AudioFlinger: setParameters(): io 2, keyvalue fm_volume=0.1115583479, calling pid 403
01-14 11:54:36.857   403  1455 V AudioFlinger_Threads: ThreadBase::setParameters() fm_volume=0.1115583479
01-14 11:54:36.857   403  1455 V AudioFlinger_Threads: sendConfigEvent_l() num events 1 event 2
01-14 11:54:36.858   403  1456 V AudioPolicyService: AudioCommandThread() processing update audio patch list
01-14 11:54:36.858   403  1456 V AudioPolicyService: -AudioCommandThread 10
01-14 11:54:36.858   403  1456 V AudioPolicyService: AudioCommandThread() going to sleep
01-14 11:54:36.858  2210  3556 D ActivityManager: setTaskToReturnTo : TaskRecord{dd1e57 #73 A=com.ordenimagesaver U=0 sz=4} / mTaskToReturnTo = 1
01-14 11:54:36.862  2210  3556 D InputDispatcher: Focus left window: Window{fae6efc u0 com.lge.launcher2/com.lge.launcher2.Launcher}
01-14 11:54:36.866   403  1625 V AudioFlinger_Threads: processConfigEvents_l() remaining events 1
01-14 11:54:36.866   403  1625 D audio_hw_primary: out_set_parameters: enter: usecase(0: deep-buffer-playback) kvpairs: fm_volume=0.1115583479
01-14 11:54:36.866   403  1625 D audio_hw_fm: audio_extn_fm_set_parameters: set_fm_volume usecase
01-14 11:54:36.866   403  1625 D audio_hw_fm: fm_set_volume: (0.111558)
01-14 11:54:36.866   403  1625 E audio_hw_fm: fm_set_volume: FM not active, ignoring set_fm_volume call or mute state 0
01-14 11:54:36.866   403  1625 V audio_hw_primary: out_set_parameters: exit: code(0)
01-14 11:54:36.866   403  1625 V AudioFlinger_Threads: processConfigEvents_l() DONE thread 0xb17b1008
01-14 11:54:36.866   403  1455 V AudioPolicyService: -AudioCommandThread 3
01-14 11:54:36.866   403  1455 V AudioPolicyService: AudioCommandThread() going to sleep
01-14 11:54:36.866   403   403 V APM::AudioPolicyManager: checkAndSetVolume() cannot set stream 6 volume with force use = 0 for comm
01-14 11:54:36.866   403   403 V AudioFlinger_Threads: signal playback thread
01-14 11:54:36.868  2210  2940 V SoundPool: delete oldTrack 0x0
01-14 11:54:36.869  2210  3556 D AppWindowTokenEx: AppWindowTokenEx init..
01-14 11:54:36.874  3567  3567 I [LGHome]EVENT: [Launcher.java:5515:onWindowFocusChanged()]onWindowFocusChanged() hasFocus false
01-14 11:54:36.874  3567  3567 I [LGHome]EVENT: [Launcher.java:5541:setEnableShakeHandlers()]disableShakeHandlers
01-14 11:54:36.874  3567  3567 I [LGHome]EVENT: onPause
01-14 11:54:36.877   403  1625 D audio_hw_primary: start_output_stream: enter: stream(0xb7f5d7d8)usecase(0: deep-buffer-playback) devices(0x2)
01-14 11:54:36.877   403  1625 D audio_hw_primary: select_devices: enter and usecase(0)
01-14 11:54:36.877   403  1625 D msm8974_platform_lge: LGE_platform_get_output_snd_device: enter(0:2)
01-14 11:54:36.877   403  1625 V msm8916_platform: platform_get_output_snd_device: enter: output devices(0x2)
01-14 11:54:36.877   403  1625 V msm8916_platform: platform_get_output_snd_device: exit: snd_device(speaker)
01-14 11:54:36.877   403  1625 V platform_apt: lge_get_output_in_mandatory_depth: enter and devices(2)
01-14 11:54:36.877   403  1625 D msm8974_platform_lge: LGE_platform_get_output_snd_device: exit: out_snd_device(speaker)
01-14 11:54:36.877   403  1625 D audio_hw_primary: select_devices: out_snd_device(2: speaker) in_snd_device(0: )
01-14 11:54:36.877   403  1625 D audio_hw_primary: enable_snd_device: enter  2
01-14 11:54:36.877   403  1625 D hardware_info: hw_info_append_hw_type : device_name = speaker
01-14 11:54:36.877   403  1625 D audio_hw_primary: enable_snd_device: snd_device(2: speaker)
01-14 11:54:36.883   403  1625 W audio_hw_utils: audio_extn_utils_update_stream_app_type_cfg: App type could not be selected. Falling back to default
01-14 11:54:36.883   403  1625 I audio_hw_primary: select_devices Selected apptype: 69936
01-14 11:54:36.883   403  1625 V audio_hw_primary: enable_audio_route: enter: usecase(0)
01-14 11:54:36.884   403  1625 E audio_hw_dolby: audio_extn_dolby_ds2_set_endpoint: Dolby set endpint :0x2
01-14 11:54:36.884   403  1625 V msm8916_platform: platform_send_audio_calibration: sending audio calibration for snd_device(2) acdb_id(14)
01-14 11:54:36.884   403  1625 D ACDB-LOADER: ACDB -> send_audio_cal, acdb_id = 14, path =  0
01-14 11:54:36.884   403  1625 D ACDB-LOADER: ACDB -> send_asm_topology
01-14 11:54:36.884   403  1625 D ACDB-LOADER: ACDB -> ACDB_CMD_GET_AUDPROC_STREAM_TOPOLOGY_ID
01-14 11:54:36.884   403  1625 D ACDB-LOADER: ACDB -> send_adm_topology
01-14 11:54:36.884   403  1625 D ACDB-LOADER: ACDB -> ACDB_CMD_GET_AUDPROC_COMMON_TOPOLOGY_ID
01-14 11:54:36.884   403  1625 D ACDB-LOADER: ACDB -> send_audtable
01-14 11:54:36.884   403  1625 D ACDB-LOADER: ACDB -> ACDB_CMD_GET_AUDPROC_COMMON_TABLE_SIZE
01-14 11:54:36.884   403  1625 D ACDB-LOADER: ACDB -> ACDB_CMD_GET_AUDPROC_COMMON_TABLE
01-14 11:54:36.884   403  1625 D ACDB-LOADER: ACDB -> AUDIO_SET_AUDPROC_CAL
01-14 11:54:36.884   403  1625 D ACDB-LOADER: ACDB -> send_audvoltable
01-14 11:54:36.884   403  1625 D ACDB-LOADER: ACDB -> ACDB_CMD_GET_AUDPROC_GAIN_DEP_STEP_TABLE
01-14 11:54:36.884   403  1625 D ACDB-LOADER: ACDB -> AUDIO_SET_AUDPROC_VOL_CAL
01-14 11:54:36.884   403  1625 D ACDB-LOADER: ACDB -> send_afe_cal
01-14 11:54:36.884   403  1625 D ACDB-LOADER: ACDB -> ACDB_CMD_GET_AFE_COMMON_TABLE
01-14 11:54:36.884   403  1625 D ACDB-LOADER: ACDB -> AUDIO_SET_AFE_CAL
01-14 11:54:36.884   403  1625 D ACDB-LOADER: ACDB -> send_hw_delay : acdb_id = 14 path = 0
01-14 11:54:36.884   403  1625 D ACDB-LOADER: ACDB -> ACDB_AVSYNC_INFO: ACDB_CMD_GET_DEVICE_PROPERTY
01-14 11:54:36.884   403  1625 I audio_hw_utils: audio_extn_utils_send_app_type_cfg app_type 69936, acdb_dev_id 14, sample_rate 48000
01-14 11:54:36.884   403  1625 V msm8974_platform_lge: LGE_platform_add_backend_name: enter: 2
01-14 11:54:36.884   403  1625 D audio_hw_primary: enable_audio_route: apply mixer and update path: deep-buffer-playback
01-14 11:54:36.885   403  1625 V audio_hw_primary: enable_audio_route: exit
01-14 11:54:36.885   403  1625 D audio_hw_primary: select_devices: done
01-14 11:54:36.885   403  1625 V audio_hw_primary: start_output_stream: Opening PCM device card_id(0) device_id(0) format(0)
01-14 11:54:36.888   403  1625 V audio_hw_primary: start_output_stream: pcm_prepare
01-14 11:54:36.895 11337 11337 I System.out: usetextureview = false, useswipekeyboard = false
01-14 11:54:36.895 11337 11337 V FXActivity: onCreate called, using 8.60.7-SNAPSHOT
01-14 11:54:36.896 11337 11585 V FXActivity native: Notification queue started
01-14 11:54:36.902 11337 11337 V FXActivity native: appDataDir: /data/user/0/com.ordenimagesaver
01-14 11:54:36.903 11337 11337 V FXActivity: onStart
01-14 11:54:36.903 11337 11337 V FXActivity: onResume
01-14 11:54:36.907   403  1625 D AudioFlinger_Threads: mixer(0xb17b1008) throttle end: throttle time(30)
01-14 11:54:36.908 11337 11337 D PhoneWindow: notifyNavigationBarColor, color=0x: ff000000, token: android.view.ViewRootImplAO$WEx@ab25162
01-14 11:54:36.909  2210  3521 D WindowManager: notifyNavigationBarColor(), token: android.os.BinderProxy@84a02b6, color: ff000000
01-14 11:54:36.918   403  1625 V AudioFlinger_Threads: mixer(0xb17b1008) throttle begin: ret(3840) deltaMs(0) requires sleep 10 ms
01-14 11:54:36.919  2210  2339 I SystemUI[Framework]: PhoneWindowManager.updateSystemUiVisibilityLw() :visibility=0x8600, pkg=com.ordenimagesaver
01-14 11:54:36.920  2210  3044 D InputDispatcher: Focus entered window: Window{31acbb7 u0 com.ordenimagesaver/javafxports.android.FXActivity}
01-14 11:54:36.921  2210  2339 W WindowManager: Call!!!getLGSystemUiVisibility. =0x0
01-14 11:54:36.921  2210  2339 D StatusBarManagerServiceEx: setLGSystemUiVisibility(0x0)
01-14 11:54:36.921  2210  2339 D StatusBarManagerServiceEx: manageNaviBtnDisableList userId=0 what=0x0 pkg=Window{31acbb7 u0 com.ordenimagesaver/javafxports.android.FXActivity}
01-14 11:54:36.921  2210  2339 I SystemUI[Framework]: ==>disabledNaviBtn() what=0x0, token=android.os.Binder@bb24803,  pkg=Window{31acbb7 u0 com.ordenimagesaver/javafxports.android.FXActivity}
01-14 11:54:36.921  2210  2339 I SystemUI[Framework]: disableNaviBtn: mDisabledNaviBtn=0x0,  mDisableRecords.size=0
01-14 11:54:36.921  2210  2339 D PhoneWindowManagerEx: [PWM]1.notifyNavigationBarColor => mLastColorNavigationBar=0xff000000
01-14 11:54:36.922  3026  3026 I NavigationThemeResource: notify navigation bar color(0xff000000)
01-14 11:54:36.922  3026  3026 I NavigationThemeResource: NavigationKey Color is changed(WHITE_WITH_SHADOW -> WHITE)
01-14 11:54:36.922  3026  3026 I NavigationThemeResource:  BarMode=4, Theme=BLACK, LightBackground=false (NOT Transparent)
01-14 11:54:36.922  3026  3026 I NavigationThemeResource: , Keyguard show=false, IME shown=false, Bar vertical=false, Panel expanded=false
01-14 11:54:36.937 11337 11337 V FXEntity: Surface created.
01-14 11:54:36.938 11337 11337 V FXActivity native: [JVDBG] SURFACE created native android window at 0xb798f7c8, surface = 0xbe837b00
01-14 11:54:36.938   403  1625 V AudioFlinger_Threads: track(0xb7fccd88) underrun,  framesReady(0) < framesDesired(962)
01-14 11:54:36.938   403  1625 V AudioFlinger_Tracks: presentationComplete() mPresentationCompleteFrames 0 framesWritten 3840
01-14 11:54:36.938   403  1625 V AudioFlinger_Tracks: presentationComplete() reset: mPresentationCompleteFrames 7680 audioHalFrames 3840
01-14 11:54:36.939 11337 11337 I GLASS   : Native code is notified that surface has changed (repaintall)!
01-14 11:54:36.940 11337 11337 V FXEntity: Called Surface changed [480, 749], format 4
01-14 11:54:36.940 11337 11337 V FXActivity native: [JVDBG] SURFACE created native android window at 0xb798f7c8, surface = 0xbe837ae0
01-14 11:54:36.941 11337 11337 I GLASS   : Native code is notified that surface has changed with size provided (repaintall)!
01-14 11:54:36.941 11337 11337 V FXEntity: Called Surface redraw needed
01-14 11:54:36.941 11337 11337 V FXEntity: Redraw...
01-14 11:54:36.941 11337 11337 I GLASS   : Call surfaceRedrawNeeded
01-14 11:54:36.941 11337 11337 I GLASS   : Native code is notified that surface needs to be redrawn (repaintall)!
01-14 11:54:36.941 11337 11337 V FXEntity: Wait a while before doing this again...
01-14 11:54:36.943  2210  8114 V SoundPool: process 0xb876a680 channel 83 event BUFFER_END
01-14 11:54:36.943  2210  3309 V SoundPool: awake
01-14 11:54:36.943  2210  3309 V SoundPool: Getting channel from stop list
01-14 11:54:36.943  2210  3309 V SoundPool: stop
01-14 11:54:36.943  2210  3309 D AudioTrack: stop(): 0xb8b6b2a8
01-14 11:54:36.943   403  1635 V AudioFlinger_Tracks: stop(4096), calling pid 2210
01-14 11:54:36.943   403  1635 V AudioFlinger_Tracks: not stopping/stopped => stopping/stopped (4096) on thread 0xb17b1008
01-14 11:54:36.944  2210  3309 V SoundPool: done_l(83)
01-14 11:54:36.944  2210  3309 V SoundPool: move to front
01-14 11:54:36.949   403  1625 V AudioFlinger_Tracks: presentationComplete() mPresentationCompleteFrames 7680 framesWritten 3840
01-14 11:54:36.949   403  1625 V AudioFlinger_Tracks: presentationComplete() mPresentationCompleteFrames 7680 framesWritten 4800
01-14 11:54:36.959   403  1625 V AudioFlinger_Tracks: presentationComplete() mPresentationCompleteFrames 7680 framesWritten 4800
01-14 11:54:36.959   403  1625 V AudioFlinger_Tracks: presentationComplete() mPresentationCompleteFrames 7680 framesWritten 5760
01-14 11:54:36.969   403  1625 V AudioFlinger_Tracks: presentationComplete() mPresentationCompleteFrames 7680 framesWritten 5760
01-14 11:54:36.969   403  1625 V AudioFlinger_Tracks: presentationComplete() mPresentationCompleteFrames 7680 framesWritten 6720
01-14 11:54:36.979   403  1625 V AudioFlinger_Tracks: presentationComplete() mPresentationCompleteFrames 7680 framesWritten 6720
01-14 11:54:36.979   403  1625 V AudioFlinger_Tracks: presentationComplete() mPresentationCompleteFrames 7680 framesWritten 7680
01-14 11:54:36.979   403  1625 V AudioFlinger_Threads: removeTracks_l removing track on session 13
01-14 11:54:36.990   403  1625 V AudioPolicyService: AudioCommandThread() adding stop output 2
01-14 11:54:36.990   403  1625 V AudioPolicyService: inserting command: 5 at index 0, num commands 0
01-14 11:54:36.990   403  1456 V AudioPolicyService: AudioCommandThread() processing stop output 2
01-14 11:54:36.990   403  1456 V APM::AudioPolicyManager: stopOutput() output 2, stream 1, session 13
01-14 11:54:36.990   403  1456 V APM::AudioPolicyManager: setBeaconMute(1) mBeaconMuteRefCount=0 mBeaconPlayingRefCount=0
01-14 11:54:36.990   403  1456 V APM::AudioOutputDescriptor: changeRefCount() stream 1, count 0
01-14 11:54:36.990   403  1456 V APM::AudioPolicyManager: getNewOutputDevice() selected device 0
01-14 11:54:36.990   403  1456 V APM::AudioPolicyManager: setOutputDevice() device 0000 delayMs 160
01-14 11:54:36.990   403  1456 V APM::AudioPolicyManager: setOutputDevice() prevDevice 0x0002
01-14 11:54:36.990   403  1456 V APM::AudioPolicyEngine: getDeviceForStrategy() remove speaker device. strategy 9 ringermode 1
01-14 11:54:36.990   403  1456 V APM::AudioPolicyEngine: getDeviceForStrategy() add headphone device. strategy 9 ringermode 1
01-14 11:54:36.990   403  1456 V APM::AudioPolicyManager: setOutputDevice() setting same device 0x0000 or null device
01-14 11:54:36.990   403  1456 V AudioPolicyService: -AudioCommandThread 5
01-14 11:54:36.990   403  1456 V AudioPolicyService: AudioCommandThread() going to sleep
01-14 11:54:37.141 11337 11337 V FXEntity: Redraw again...
01-14 11:54:37.142 11337 11337 I GLASS   : Call surfaceRedrawNeeded
01-14 11:54:37.142 11337 11337 I GLASS   : Native code is notified that surface needs to be redrawn (repaintall)!
01-14 11:54:37.152 11337 11337 V FXEntity: Called Surface redraw needed
01-14 11:54:37.152 11337 11337 V FXEntity: Redraw...
01-14 11:54:37.152 11337 11337 I GLASS   : Call surfaceRedrawNeeded
01-14 11:54:37.152 11337 11337 I GLASS   : Native code is notified that surface needs to be redrawn (repaintall)!
01-14 11:54:37.152 11337 11337 V FXEntity: Wait a while before doing this again...
01-14 11:54:37.352 11337 11337 V FXEntity: Redraw again...
01-14 11:54:37.352 11337 11337 I GLASS   : Call surfaceRedrawNeeded
01-14 11:54:37.352 11337 11337 I GLASS   : Native code is notified that surface needs to be redrawn (repaintall)!
01-14 11:54:37.369  2210  2419 I ActivityManager: Displayed com.ordenimagesaver/javafxports.android.FXActivity: +487ms
01-14 11:54:37.384 11337 11337 V ViewRootImpl: Contents drawing finished : com.ordenimagesaver/javafxports.android.FXActivity
01-14 11:54:37.385 11337 11337 I Timeline: Timeline: Activity_idle id: android.os.BinderProxy@158b82d time:1813617
01-14 11:54:37.391  3567  3788 E Surface : getSlotFromBufferLocked: unknown buffer: 0xb898a880
01-14 11:54:37.780  3567  3567 I [LGHome]EVENT: onStop
01-14 11:54:37.795  2210  2337 I ProcessStatsService: Prepared write state in 14ms
01-14 11:54:39.934   403  1625 V AudioFlinger_Threads: Audio hardware entering standby, mixer 0xb17b1008, suspend count 0
01-14 11:54:39.934   403  1625 D audio_hw_primary: out_standby: enter: stream (0xb7f5d7d8) usecase(0: deep-buffer-playback)
01-14 11:54:40.121   403  1625 V audio_hw_primary: stop_output_stream: enter: usecase(0: deep-buffer-playback)
01-14 11:54:40.121   403  1625 V audio_hw_primary: disable_audio_route: enter: usecase(0)
01-14 11:54:40.121   403  1625 V msm8974_platform_lge: LGE_platform_add_backend_name: enter: 2
01-14 11:54:40.121   403  1625 D audio_hw_primary: disable_audio_route: reset and update mixer path: deep-buffer-playback
01-14 11:54:40.121   403  1625 V audio_hw_primary: disable_audio_route: exit
01-14 11:54:40.121   403  1625 D audio_hw_primary: disable_snd_device: enter 2
01-14 11:54:40.121   403  1625 D hardware_info: hw_info_append_hw_type : device_name = speaker
01-14 11:54:40.121   403  1625 D audio_hw_primary: disable_snd_device: snd_device(2: speaker)
01-14 11:54:40.123   403  1625 V audio_hw_primary: stop_output_stream: exit: status(0)
01-14 11:54:40.123   403  1625 V audio_hw_primary: out_standby: exit
01-14 11:54:40.123   403  1625 V AudioFlinger_Threads: thread 0xb17b1008 type 0 TID 1625 going to sleep
01-14 11:54:41.259   415   508 I ThermalEngine: Sensor:pa_therm0:27000 mC

I do not see any exceptions and still I have black screen when I run my program on smartphone with Android OS.

Answer 1

The ClassNotFoundException says it can't find the OrdenImageSaver class. It sounds like you're trying to load an image and since that class can't be found, the screen is just displaying black.

Make sure the class is located in the com.ordenimagesaver package. After that, try the following:

Clear app cache

Clear app data

Uninstall app

Restart Android Studio

Run/Debug again