Google reporting app crashes on some phones

[jonathanbataire]

Describe the bug
Google play is reporting app crashes on TECNO TECNO-KF6j (TECNO SPARK 7) & TECNO TECNO-KG5j (TECNO SPARK 8C)

Exception java.lang.RuntimeException:
  at android.app.ActivityThread.performLaunchActivity (ActivityThread.java:3628)
  at android.app.ActivityThread.handleLaunchActivity (ActivityThread.java:3873)
  at android.app.servertransaction.LaunchActivityItem.execute (LaunchActivityItem.java:85)
  at android.app.servertransaction.TransactionExecutor.executeCallbacks (TransactionExecutor.java:135)
  at android.app.servertransaction.TransactionExecutor.execute (TransactionExecutor.java:95)
  at android.app.ActivityThread$H.handleMessage (ActivityThread.java:2197)
  at android.os.Handler.dispatchMessage (Handler.java:106)
  at android.os.Looper.loop (Looper.java:268)
  at android.app.ActivityThread.main (ActivityThread.java:8016)
  at java.lang.reflect.Method.invoke
  at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run (RuntimeInit.java:627)
  at com.android.internal.os.ZygoteInit.main (ZygoteInit.java:997)
Caused by java.lang.NullPointerException: Attempt to invoke virtual method 'void android.view.View.setOnTouchListener(android.view.View$OnTouchListener)' on a null object reference
  at L.H.onCreate (SourceFile:17)
  at android.app.Fragment.performCreate (Fragment.java:2486)
  at android.app.FragmentManagerImpl.moveToState (FragmentManager.java:1261)
  at android.app.FragmentManagerImpl.moveFragmentToExpectedState (FragmentManager.java:1581)
  at android.app.FragmentManagerImpl.moveToState (FragmentManager.java:1642)
  at android.app.FragmentManagerImpl.dispatchMoveToState (FragmentManager.java:3052)
  at android.app.FragmentManagerImpl.dispatchCreate (FragmentManager.java:2999)
  at android.app.FragmentController.dispatchCreate (FragmentController.java:173)
  at android.app.Activity.onCreate (Activity.java:1601)
  at org.medicmobile.webapp.mobile.EmbeddedBrowserActivity.onCreate (SourceFile:1)
  at android.app.Activity.performCreate (Activity.java:8077)
  at android.app.Activity.performCreate (Activity.java:8061)
  at android.app.Instrumentation.callActivityOnCreate (Instrumentation.java:1315)
  at android.app.ActivityThread.performLaunchActivity (ActivityThread.java:3601)

CHT Android version: 1.4

Phone specifications

RAM: 2.9 – 3.0 GB
Android version: Android 11 (SDK 30)
System on Chip: Mediatek MT6762d
CPU: Unknown
GPU: Unknown
ABI: arm64-v8a, armeabi-v7a,armeabi

[binokaryg]

This error is showing up on other phones with Android versions 8.1 - 14:

• OnePlus OP5DA6L1
• Samsung m32
• Realme RMX3231
• Samsung a04
• others

For PRTP Gandaki, the user-perceived crash rate is 11.49% which is very high according to Google. The threshold is 1.09%.

Here are the Crash details for PRTP Gandaki.

[binokaryg]

The same error was reported by Google when doing pre-launch testing. Here are the details:

Device specifications:

Model name	Small Desktop (x86) (virtual)
Manufacturer	Generic
Android version	Android 12L (SDK 32)
Locale	en_US
Screen size	1366 x 768
Screen density (DPI)	160
RAM (total memory)	-
OpenGL ES version	-
ABI	x86_64
CPU	-

Stacktrace

Exception java.lang.RuntimeException: Unable to start activity ComponentInfo{org.medicmobile.webapp.mobile.gandaki_ne/org.medicmobile.webapp.mobile.EmbeddedBrowserActivity}: java.lang.NullPointerException: Attempt to invoke virtual method 'void android.view.View.setOnTouchListener(android.view.View$OnTouchListener)' on a null object reference
  at android.app.ActivityThread.performLaunchActivity (ActivityThread.java:3707)
  at android.app.ActivityThread.handleLaunchActivity (ActivityThread.java:3864)
  at android.app.ActivityThread.handleRelaunchActivityInner (ActivityThread.java:5811)
  at android.app.ActivityThread.handleRelaunchActivity (ActivityThread.java:5703)
  at android.app.servertransaction.ActivityRelaunchItem.execute (ActivityRelaunchItem.java:71)
  at android.app.servertransaction.ActivityTransactionItem.execute (ActivityTransactionItem.java:45)
  at android.app.servertransaction.TransactionExecutor.executeCallbacks (TransactionExecutor.java:135)
  at android.app.servertransaction.TransactionExecutor.execute (TransactionExecutor.java:95)
  at android.app.ActivityThread$H.handleMessage (ActivityThread.java:2253)
  at android.os.Handler.dispatchMessage (Handler.java:106)
  at android.os.Looper.loopOnce (Looper.java:201)
  at android.os.Looper.loop (Looper.java:288)
  at android.app.ActivityThread.main (ActivityThread.java:7870)
  at java.lang.reflect.Method.invoke
  at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run (RuntimeInit.java:548)
  at com.android.internal.os.ZygoteInit.main (ZygoteInit.java:1003)
Caused by java.lang.NullPointerException: Attempt to invoke virtual method 'void android.view.View.setOnTouchListener(android.view.View$OnTouchListener)' on a null object reference
  at org.medicmobile.webapp.mobile.OpenSettingsDialogFragment.onCreate (OpenSettingsDialogFragment.java:17)
  at android.app.Fragment.performCreate (Fragment.java:2486)
  at android.app.FragmentManagerImpl.moveToState (FragmentManager.java:1261)
  at android.app.FragmentManagerImpl.moveFragmentToExpectedState (FragmentManager.java:1581)
  at android.app.FragmentManagerImpl.moveToState (FragmentManager.java:1642)
  at android.app.FragmentManagerImpl.dispatchMoveToState (FragmentManager.java:3052)
  at android.app.FragmentManagerImpl.dispatchCreate (FragmentManager.java:2999)
  at android.app.FragmentController.dispatchCreate (FragmentController.java:174)
  at android.app.Activity.onCreate (Activity.java:1634)
  at org.medicmobile.webapp.mobile.EmbeddedBrowserActivity.onCreate (EmbeddedBrowserActivity.java:1)
  at android.app.Activity.performCreate (Activity.java:8074)
  at android.app.Activity.performCreate (Activity.java:8054)
  at android.app.Instrumentation.callActivityOnCreate (Instrumentation.java:1341)
  at androidx.test.runner.MonitoringInstrumentation.callActivityOnCreate (MonitoringInstrumentation.java:2)
  at android.app.ActivityThread.performLaunchActivity (ActivityThread.java:3688)

video.mp4

It's not clear from the screen recording at what point exactly it crashed, probably at the end after initial sync is complete.

Full logcat: logcat.txt

[binokaryg]

Of the three Nepal apps, only those two on 1.4.0 have this error: PRTP Gandaki, CHIS Nepal.
mHealth Lumbini is on v1.3.0-alpha-2.lumbini-ne, and this error is not seen.

[sugat009]

I've looked into this and I think I've figured out the cause of the error. I couldn't recreate this but judging by the stack trace and the previous error which was fixed #338, I have the following findings.

Here, in the EmbeddedBrowserActivity (the main class/activity for the app) calls the Fragment OpenSettingsDialogFragment class, which will work as expected in a normal case. However, in some cases such as hibernation or pause or something that needs the app to be paused and resumed the Fragment class OpenSettingsDialogFragment fails to obtain the activity from which it is being called. Ref. Hence, the view variable here is set to null as per the exception stack trace and cannot call setOnTouchListener method.

I haven't implemented and tested this all out but the solution seems to be to implement androidx.fragment.app.Fragment and not android.app.Fragment. androidx.fragment.app.Fragment seems to have more flexibility and functionalities to deal with the required functionality.

[binokaryg]

Using Android emulator with version 12L on small desktop x86 virtual device, the error was reproduced. It occurred when using the "Split" action in the overview to start split-screen mode with a tap.

20241002-1348-25.9588927.mp4

I was also able to reproduce the error on my phone when switching to a split screen view where one of the open apps was CHT.

[derickl]

I see this in Kenya as well

org.medicmobile.webapp.mobile.OpenSettingsDialogFragment.onCreate
java.lang.NullPointerException

There are 62,196 crashes in the last 28 days. Devices running android 13 are affected the most.

Exception java.lang.RuntimeException: Unable to start activity ComponentInfo{org.medicmobile.webapp.mobile.moh_kenya_echis/org.medicmobile.webapp.mobile.EmbeddedBrowserActivity}: java.lang.NullPointerException: Attempt to invoke virtual method 'void android.view.View.setOnTouchListener(android.view.View$OnTouchListener)' on a null object reference
  at android.app.ActivityThread.performLaunchActivity (ActivityThread.java:3704)
  at android.app.ActivityThread.handleLaunchActivity (ActivityThread.java:3861)
  at android.app.servertransaction.LaunchActivityItem.execute (LaunchActivityItem.java:105)
  at android.app.servertransaction.TransactionExecutor.executeCallbacks (TransactionExecutor.java:136)
  at android.app.servertransaction.TransactionExecutor.execute (TransactionExecutor.java:96)
  at android.app.ActivityThread$H.handleMessage (ActivityThread.java:2273)
  at android.os.Handler.dispatchMessage (Handler.java:106)
  at android.os.Looper.loopOnce (Looper.java:201)
  at android.os.Looper.loop (Looper.java:288)
  at android.app.ActivityThread.main (ActivityThread.java:7976)
  at java.lang.reflect.Method.invoke
  at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run (RuntimeInit.java:553)
  at com.android.internal.os.ZygoteInit.main (ZygoteInit.java:1003)
Caused by java.lang.NullPointerException: Attempt to invoke virtual method 'void android.view.View.setOnTouchListener(android.view.View$OnTouchListener)' on a null object reference
  at org.medicmobile.webapp.mobile.OpenSettingsDialogFragment.onCreate (OpenSettingsDialogFragment.java:17)
  at android.app.Fragment.performCreate (Fragment.java:2486)
  at android.app.FragmentManagerImpl.moveToState (FragmentManager.java:1261)
  at android.app.FragmentManagerImpl.moveFragmentToExpectedState (FragmentManager.java:1581)
  at android.app.FragmentManagerImpl.moveToState (FragmentManager.java:1642)
  at android.app.FragmentManagerImpl.dispatchMoveToState (FragmentManager.java:3072)
  at android.app.FragmentManagerImpl.dispatchCreate (FragmentManager.java:3019)
  at android.app.FragmentController.dispatchCreate (FragmentController.java:174)
  at android.app.Activity.onCreate (Activity.java:1612)
  at org.medicmobile.webapp.mobile.EmbeddedBrowserActivity.onCreate (EmbeddedBrowserActivity.java:1)
  at android.app.Activity.performCreate (Activity.java:8094)
  at android.app.Activity.performCreate (Activity.java:8074)
  at android.app.Instrumentation.callActivityOnCreate (Instrumentation.java:1329)
  at android.app.ActivityThread.performLaunchActivity (ActivityThread.java:3674)