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Published 20 hours ago • verified publisher icon nisrulz

Attempt to invoke virtual method 'float android.view.MotionEvent.getX()' on a null object reference

Open duartebarbosadev opened this issue 8 years ago • 11 comments

It works, but sometimes it shows this error: (Double Tap)

I don't know how to replicate tho :/

Process: com.test.testmenu, PID: 5675
                  java.lang.NullPointerException: Attempt to invoke virtual method 'float android.view.MotionEvent.getX()' on a null object reference
                      at com.github.nisrulz.sensey.TouchTypeDetector$a.onScroll(SourceFile:169)
                      at android.view.GestureDetector.onTouchEvent(GestureDetector.java:619)
                      at android.support.v4.view.GestureDetectorCompat$GestureDetectorCompatImplJellybeanMr2.onTouchEvent(GestureDetectorCompat.java:479)
                      at android.support.v4.view.GestureDetectorCompat.onTouchEvent(GestureDetectorCompat.java:542)
                      at com.github.nisrulz.sensey.Sensey.setupDispatchTouchEvent(SourceFile:4102)
                      at com.quarkprojects.detetordeazeite.MainActivity.dispatchTouchEvent(MainActivity.java:1202)
                      at android.support.v7.view.WindowCallbackWrapper.dispatchTouchEvent(WindowCallbackWrapper.java:71)
                      at android.support.v7.view.WindowCallbackWrapper.dispatchTouchEvent(WindowCallbackWrapper.java:71)
                      at com.android.internal.policy.PhoneWindow$DecorView.dispatchTouchEvent(PhoneWindow.java:2364)
                      at android.view.View.dispatchPointerEvent(View.java:9514)
                      at android.view.ViewRootImpl$ViewPostImeInputStage.processPointerEvent(ViewRootImpl.java:4230)
                      at android.view.ViewRootImpl$ViewPostImeInputStage.onProcess(ViewRootImpl.java:4096)
                      at android.view.ViewRootImpl$InputStage.deliver(ViewRootImpl.java:3642)
                      at android.view.ViewRootImpl$InputStage.onDeliverToNext(ViewRootImpl.java:3695)
                      at android.view.ViewRootImpl$InputStage.forward(ViewRootImpl.java:3661)
                      at android.view.ViewRootImpl$AsyncInputStage.forward(ViewRootImpl.java:3787)
                      at android.view.ViewRootImpl$InputStage.apply(ViewRootImpl.java:3669)
                      at android.view.ViewRootImpl$AsyncInputStage.apply(ViewRootImpl.java:3844)
                      at android.view.ViewRootImpl$InputStage.deliver(ViewRootImpl.java:3642)
                      at android.view.ViewRootImpl$InputStage.onDeliverToNext(ViewRootImpl.java:3695)
                      at android.view.ViewRootImpl$InputStage.forward(ViewRootImpl.java:3661)
                      at android.view.ViewRootImpl$InputStage.apply(ViewRootImpl.java:3669)
                      at android.view.ViewRootImpl$InputStage.deliver(ViewRootImpl.java:3642)
                      at android.view.ViewRootImpl.deliverInputEvent(ViewRootImpl.java:5922)
                      at android.view.ViewRootImpl.doProcessInputEvents(ViewRootImpl.java:5896)
                      at android.view.ViewRootImpl.enqueueInputEvent(ViewRootImpl.java:5857)
                      at android.view.ViewRootImpl$WindowInputEventReceiver.onInputEvent(ViewRootImpl.java:6025)
                      at android.view.InputEventReceiver.dispatchInputEvent(InputEventReceiver.java:185)
                      at android.os.MessageQueue.nativePollOnce(Native Method)
                      at android.os.MessageQueue.next(MessageQueue.java:323)
                      at android.os.Looper.loop(Looper.java:135)
                      at android.app.ActivityThread.main(ActivityThread.java:5417)
                      at java.lang.reflect.Method.invoke(Native Method)
                      at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)
                      at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)

duartebarbosadev avatar Feb 18 '17 01:02 duartebarbosadev

@PedroBarbosaPT Can you provide device details and os details.

nisrulz avatar Feb 18 '17 02:02 nisrulz

@nisrulz Android Emulator - Nexus 5 API 23 Android 6.0

duartebarbosadev avatar Feb 18 '17 16:02 duartebarbosadev

@PedroBarbosaPT I have yet to reproduce this issue. Just so you know this issue isn't abandoned. 😅 Will update you when I am able to replicate and provide a possible solution.

nisrulz avatar Feb 28 '17 08:02 nisrulz

@nisrulz No problem. The error never happened again, so ... 😅

duartebarbosadev avatar Feb 28 '17 14:02 duartebarbosadev

Hmm.. good to know that. I am closing this issue until it resurfaces again.

nisrulz avatar Feb 28 '17 18:02 nisrulz

I have the same problem. From my stats on Fabric it looks like it occurs only on Samsung (94%) and Huawei(6%) devices. I wasn't able to replicate the problem myself. It's the most occurring bug in my app right now, Is there any solution to this?

Patra89 avatar Nov 10 '17 00:11 Patra89

Hi @Patra89 Could you share information from your fabric account. For both devices where you are seeing this. Also please provide me full details of the device specs. If you do figure out how to replicate this that would be really helpful too.

nisrulz avatar Nov 10 '17 02:11 nisrulz

Stats from Fabric:

Samsung devices: Galaxy S4, SM-G950U, Galaxy S7 Edge, SM-G950F, SM-A320FL, Galaxy S7, Galaxy S6, SM-N950F, SM-N950F, Galaxy Note4, Galaxy S6 Edge, Galaxy A7(2016), Galaxy S6 Edge+

Huawei devices: P9, P8 Lite

Operating systems: 7 - 64% 5 - 23% 6 - 13% (I don't support anything below 5.0)

Device statistics: Proximity On - 6% App in Focus - 6% Rooted - 0%

Raport on the same problem from my Google Play Console:

Devices: Galaxy S4 (jflte) | 23,5% Galaxy S8 (dreamqltesq) | 11,8% Galaxy S7 Edge (hero2lte) | 8,8% Galaxy A3 (2017) (a3y17lte) | 8,8% Galaxy S7 (heroqltevzw) | 5,9% Galaxy S7 (heroqltetmo) | 5,9% Galaxy S7 Edge (hero2qltetmo) | 5,9% Galaxy S8 (dreamlte) | 5,9% Galaxy S6 (zeroflte) | 2,9% Galaxy S6 Edge+ (zenltetmo) | 2,9% Galaxy Note4 (trlte) | 2,9% Galaxy S7 (herolte) | 2,9% Galaxy Note8 (greatlte) | 2,9% Galaxy S8+ (dream2qltecan) | 2,9% Galaxy A7(2016) (a7xeltextc) | 2,9% Galaxy A7(2016) (a7xelte)

Operating systems:

Android 7.0 | 58,8% Android 5.0 | 23,5% Android 6.0 | 14,7% Android 7.1 | 2,9%

Patra89 avatar Nov 10 '17 11:11 Patra89

Have the same bug here on my test Device.

Stack trace:

2020-10-14 15:07:32.521 18965-18965/de.sipgate.app.satellite V/ProfileListEntry: [2020-10-14 15:07:32:517] [18965] [VERBO] [ProfileListEntry]: Event was ACTION_MOVE 2020-10-14 15:07:32.528 18965-18965/de.sipgate.app.satellite V/ProfileListEntry: [2020-10-14 15:07:32:528] [18965] [VERBO] [ProfileListEntry]: Data: rawX: 486.82617, x: 486.82617, xPrecision: 1.0 2020-10-14 15:07:32.568 18965-18965/de.sipgate.app.satellite V/ProfileListEntry: [2020-10-14 15:07:32:567] [18965] [VERBO] [ProfileListEntry]: Event was ACTION_CANCEL 2020-10-14 15:07:32.575 18965-18965/de.sipgate.app.satellite V/ProfileListEntry: [2020-10-14 15:07:32:574] [18965] [VERBO] [ProfileListEntry]: Your time Delay was: 131 and your distance: -395.8642 2020-10-14 15:07:32.587 18965-18965/de.sipgate.app.satellite V/ProfileListEntry: [2020-10-14 15:07:32:586] [18965] [VERBO] [ProfileListEntry]: Reset and Start animation 2020-10-14 15:07:32.596 18965-18965/de.sipgate.app.satellite I/ProfileListEntry: [2020-10-14 15:07:32:595] [18965] [INFO] [ProfileListEntry]: I choose this was a click 2020-10-14 15:07:32.631 18965-18965/de.sipgate.app.satellite D/ProfileRepository: [2020-10-14 15:07:32:630] [18965] [DEBUG] [ProfileRepository]: attempt to parse 11246ada-4f80-4afb-b613-66d75f00ca29 2020-10-14 15:07:32.633 18965-18965/de.sipgate.app.satellite W/ClassMapper: No setter/field for trigger found on class de.sipgate.app.satellite.repository.Profile 2020-10-14 15:07:32.635 18965-18965/de.sipgate.app.satellite D/ProfileRepository: [2020-10-14 15:07:32:634] [18965] [DEBUG] [ProfileRepository]: attempt to parse b31906d6-5ee9-4839-ae4e-885fbc62c95f 2020-10-14 15:07:32.636 18965-18965/de.sipgate.app.satellite W/ClassMapper: No setter/field for trigger found on class de.sipgate.app.satellite.repository.Profile 2020-10-14 15:07:32.674 18965-18965/de.sipgate.app.satellite E/InputEventReceiver: Exception dispatching input event. 2020-10-14 15:07:32.674 18965-18965/de.sipgate.app.satellite D/AndroidRuntime: Shutting down VM 2020-10-14 15:07:32.686 18965-18965/de.sipgate.app.satellite E/AndroidRuntime: FATAL EXCEPTION: main Process: de.sipgate.app.satellite, PID: 18965 java.lang.NullPointerException: Attempt to invoke virtual method 'float android.view.MotionEvent.getX()' on a null object reference at com.github.nisrulz.sensey.TouchTypeDetector$a.onScroll(SourceFile:84) at android.view.GestureDetector.onTouchEvent(GestureDetector.java:651) at androidx.core.view.GestureDetectorCompat$GestureDetectorCompatImplJellybeanMr2.onTouchEvent(GestureDetectorCompat.java:480) at androidx.core.view.GestureDetectorCompat.onTouchEvent(GestureDetectorCompat.java:543) at com.github.nisrulz.sensey.Sensey.setupDispatchTouchEvent(SourceFile:1240) at de.sipgate.app.satellite.main.MainActivity.dispatchTouchEvent(MainActivity.kt:326) at androidx.appcompat.view.WindowCallbackWrapper.dispatchTouchEvent(WindowCallbackWrapper.java:69) at com.android.internal.policy.DecorView.dispatchTouchEvent(DecorView.java:514) at android.view.View.dispatchPointerEvent(View.java:12877) at android.view.ViewRootImpl$ViewPostImeInputStage.processPointerEvent(ViewRootImpl.java:5771) at android.view.ViewRootImpl$ViewPostImeInputStage.onProcess(ViewRootImpl.java:5535) at android.view.ViewRootImpl$InputStage.deliver(ViewRootImpl.java:4983) at android.view.ViewRootImpl$InputStage.onDeliverToNext(ViewRootImpl.java:5036) at android.view.ViewRootImpl$InputStage.forward(ViewRootImpl.java:5002) at android.view.ViewRootImpl$AsyncInputStage.forward(ViewRootImpl.java:5157) at android.view.ViewRootImpl$InputStage.apply(ViewRootImpl.java:5010) at android.view.ViewRootImpl$AsyncInputStage.apply(ViewRootImpl.java:5214) at android.view.ViewRootImpl$InputStage.deliver(ViewRootImpl.java:4983) at android.view.ViewRootImpl$InputStage.onDeliverToNext(ViewRootImpl.java:5036) at android.view.ViewRootImpl$InputStage.forward(ViewRootImpl.java:5002) at android.view.ViewRootImpl$InputStage.apply(ViewRootImpl.java:5010) at android.view.ViewRootImpl$InputStage.deliver(ViewRootImpl.java:4983) at android.view.ViewRootImpl.deliverInputEvent(ViewRootImpl.java:7803) at android.view.ViewRootImpl.doProcessInputEvents(ViewRootImpl.java:7768) at android.view.ViewRootImpl.enqueueInputEvent(ViewRootImpl.java:7726) at android.view.ViewRootImpl$WindowInputEventReceiver.onInputEvent(ViewRootImpl.java:8007) at android.view.InputEventReceiver.dispatchInputEvent(InputEventReceiver.java:202) at android.view.InputEventReceiver.nativeConsumeBatchedInputEvents(Native Method) at android.view.InputEventReceiver.consumeBatchedInputEvents(InputEventReceiver.java:191) at android.view.ViewRootImpl.doConsumeBatchedInput(ViewRootImpl.java:7917) at android.view.ViewRootImpl$ConsumeBatchedInputRunnable.run(ViewRootImpl.java:8061) at android.view.Choreographer$CallbackRecord.run(Choreographer.java:1092) at android.view.Choreographer.doCallbacks(Choreographer.java:893) at android.view.Choreographer.doFrame(Choreographer.java:806) at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:1078) at android.os.Handler.handleCallback(Handler.java:907) at android.os.Handler.dispatchMessage(Handler.java:105) at android.os.Looper.loop(Looper.java:216) at android.app.ActivityThread.main(ActivityThread.java:7625) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:524) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:987) 2020-10-14 15:07:32.696 18965-18965/de.sipgate.app.satellite E/App$setupExceptionHandler: [2020-10-14 15:07:32:688] [18965] [ERROR] [App$setupExceptionHandler]: CRASH java.lang.NullPointerException: Attempt to invoke virtual method 'float android.view.MotionEvent.getX()' on a null object reference at com.github.nisrulz.sensey.TouchTypeDetector$a.onScroll(SourceFile:84) at android.view.GestureDetector.onTouchEvent(GestureDetector.java:651) at androidx.core.view.GestureDetectorCompat$GestureDetectorCompatImplJellybeanMr2.onTouchEvent(GestureDetectorCompat.java:480) at androidx.core.view.GestureDetectorCompat.onTouchEvent(GestureDetectorCompat.java:543) at com.github.nisrulz.sensey.Sensey.setupDispatchTouchEvent(SourceFile:1240) at de.sipgate.app.satellite.main.MainActivity.dispatchTouchEvent(MainActivity.kt:326) at androidx.appcompat.view.WindowCallbackWrapper.dispatchTouchEvent(WindowCallbackWrapper.java:69) at com.android.internal.policy.DecorView.dispatchTouchEvent(DecorView.java:514) at android.view.View.dispatchPointerEvent(View.java:12877) at android.view.ViewRootImpl$ViewPostImeInputStage.processPointerEvent(ViewRootImpl.java:5771) at android.view.ViewRootImpl$ViewPostImeInputStage.onProcess(ViewRootImpl.java:5535) at android.view.ViewRootImpl$InputStage.deliver(ViewRootImpl.java:4983) at android.view.ViewRootImpl$InputStage.onDeliverToNext(ViewRootImpl.java:5036) at android.view.ViewRootImpl$InputStage.forward(ViewRootImpl.java:5002) at android.view.ViewRootImpl$AsyncInputStage.forward(ViewRootImpl.java:5157) at android.view.ViewRootImpl$InputStage.apply(ViewRootImpl.java:5010) at android.view.ViewRootImpl$AsyncInputStage.apply(ViewRootImpl.java:5214) at android.view.ViewRootImpl$InputStage.deliver(ViewRootImpl.java:4983) at android.view.ViewRootImpl$InputStage.onDeliverToNext(ViewRootImpl.java:5036) at android.view.ViewRootImpl$InputStage.forward(ViewRootImpl.java:5002) at android.view.ViewRootImpl$InputStage.apply(ViewRootImpl.java:5010) at android.view.ViewRootImpl$InputStage.deliver(ViewRootImpl.java:4983) at android.view.ViewRootImpl.deliverInputEvent(ViewRootImpl.java:7803) at android.view.ViewRootImpl.doProcessInputEvents(ViewRootImpl.java:7768) at android.view.ViewRootImpl.enqueueInputEvent(ViewRootImpl.java:7726) at android.view.ViewRootImpl$WindowInputEventReceiver.onInputEvent(ViewRootImpl.java:8007) at android.view.InputEventReceiver.dispatchInputEvent(InputEventReceiver.java:202) at android.view.InputEventReceiver.nativeConsumeBatchedInputEvents(Native Method) at android.view.InputEventReceiver.consumeBatchedInputEvents(InputEventReceiver.java:191) at android.view.ViewRootImpl.doConsumeBatchedInput(ViewRootImpl.java:7917) at android.view.ViewRootImpl$ConsumeBatchedInputRunnable.run(ViewRootImpl.java:8061) at android.view.Choreographer$CallbackRecord.run(Choreographer.java:1092) at android.view.Choreographer.doCallbacks(Choreographer.java:893) at android.view.Choreographer.doFrame(Choreographer.java:806) at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:1078) at android.os.Handler.handleCallback(Handler.java:907) at android.os.Handler.dispatchMessage(Handler.java:105) at android.os.Looper.loop(Looper.java:216) at android.app.ActivityThread.main(ActivityThread.java:7625) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:524) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:987)

Device is a HUAWEI Mate 9 - Model MHA-L29 EMUI-Version 9.1.0. - Android Version 9 Build-Nummer: 9.1.0.252(C432E7R1P8patch03)

I created a view with a on touch listener to animate the swipe and used the swipe detection of sensey. It appears during a delete animation when the user touches or lift his finger on the view animations. So it seems there is a race condition, the view is allready destroyed but there a still running some event calculation in background.

Heres a video when i try to recreate the bug: https://drive.google.com/file/d/1-CQRggoRcw0b1GqTD1lHIIOGpMLaOhUn/view?usp=sharing

VanFanelia avatar Oct 14 '20 13:10 VanFanelia

My temporary fix is a big try catch around sensey's setup method. It works, but is not a reliable solution.

override fun dispatchTouchEvent(event: MotionEvent?): Boolean {
        // Setup onTouchEvent for detecting type of touch gesture
        try {
            Sensey.getInstance().setupDispatchTouchEvent(event)
        } catch (e: Exception){
            Timber.e(e, "Sensey got an exception. try to ignore it")
        }
        return super.dispatchTouchEvent(event)
    }

VanFanelia avatar Oct 14 '20 13:10 VanFanelia

I don't know if it's related but I've gotten a couple of somewhat similar crashes. Please let me know if you'd prefer that UI open a new issue for it. See below:

java.lang.NullPointerException: 
  at com.github.nisrulz.sensey.TouchTypeDetector$a.onScroll (SourceFile:1)
  at android.view.GestureDetector.onTouchEvent (GestureDetector.java:650)
  at androidx.core.view.GestureDetectorCompat$GestureDetectorCompatImplJellybeanMr2.onTouchEvent (GestureDetectorCompat.java:480)
  at androidx.core.view.GestureDetectorCompat.onTouchEvent (GestureDetectorCompat.java:543)
  at com.github.nisrulz.sensey.TouchTypeDetector.a (SourceFile:10)
  at com.github.nisrulz.sensey.Sensey.setupDispatchTouchEvent (SourceFile:2)
  at com.tobianoapps.timerise.ui.MainActivity.dispatchTouchEvent (MainActivity.kt:146)
  at androidx.appcompat.view.WindowCallbackWrapper.dispatchTouchEvent (WindowCallbackWrapper.java:69)
  at com.android.internal.policy.DecorView.dispatchTouchEvent (DecorView.java:692)
  at android.view.View.dispatchPointerEvent (View.java:13721)
  at android.view.ViewRootImpl$ViewPostImeInputStage.processPointerEvent (ViewRootImpl.java:6197)
  at android.view.ViewRootImpl$ViewPostImeInputStage.onProcess (ViewRootImpl.java:5975)
  at android.view.ViewRootImpl$InputStage.deliver (ViewRootImpl.java:5424)
  at android.view.ViewRootImpl$InputStage.onDeliverToNext (ViewRootImpl.java:5477)
  at android.view.ViewRootImpl$InputStage.forward (ViewRootImpl.java:5443)
  at android.view.ViewRootImpl$AsyncInputStage.forward (ViewRootImpl.java:5602)
  at android.view.ViewRootImpl$InputStage.apply (ViewRootImpl.java:5451)
  at android.view.ViewRootImpl$AsyncInputStage.apply (ViewRootImpl.java:5659)
  at android.view.ViewRootImpl$InputStage.deliver (ViewRootImpl.java:5424)
  at android.view.ViewRootImpl$InputStage.onDeliverToNext (ViewRootImpl.java:5477)
  at android.view.ViewRootImpl$InputStage.forward (ViewRootImpl.java:5443)
  at android.view.ViewRootImpl$InputStage.apply (ViewRootImpl.java:5451)
  at android.view.ViewRootImpl$InputStage.deliver (ViewRootImpl.java:5424)
  at android.view.ViewRootImpl.deliverInputEvent (ViewRootImpl.java:8501)
  at android.view.ViewRootImpl.doProcessInputEvents (ViewRootImpl.java:8421)
  at android.view.ViewRootImpl.enqueueInputEvent (ViewRootImpl.java:8374)
  at android.view.ViewRootImpl$WindowInputEventReceiver.onInputEvent (ViewRootImpl.java:8616)
  at android.view.InputEventReceiver.dispatchInputEvent (InputEventReceiver.java:198)
  at android.view.InputEventReceiver.nativeConsumeBatchedInputEvents (Native Method)
  at android.view.InputEventReceiver.consumeBatchedInputEvents (InputEventReceiver.java:187)
  at android.view.ViewRootImpl.doConsumeBatchedInput (ViewRootImpl.java:8575)
  at android.view.ViewRootImpl$ConsumeBatchedInputRunnable.run (ViewRootImpl.java:8643)
  at android.view.Choreographer$CallbackRecord.run (Choreographer.java:988)
  at android.view.Choreographer.doCallbacks (Choreographer.java:765)
  at android.view.Choreographer.doFrame (Choreographer.java:694)
  at android.view.Choreographer$FrameDisplayEventReceiver.run (Choreographer.java:967)
  at android.os.Handler.handleCallback (Handler.java:873)
  at android.os.Handler.dispatchMessage (Handler.java:99)
  at android.os.Looper.loop (Looper.java:214)
  at android.app.ActivityThread.main (ActivityThread.java:7156)
  at java.lang.reflect.Method.invoke (Native Method)
  at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run (RuntimeInit.java:494)
  at com.android.internal.os.ZygoteInit.main (ZygoteInit.java:975)

Device was a Samsung Galaxy J7 Neo running Android 9 (SDK 28).

Any idea how I could investigate the source of this error? Thanks!

sebastinto avatar Aug 10 '21 04:08 sebastinto