Android Question App freezes and causes device to forcefully reboot

[roderiko4]

Hello, I'm new to this community and I need help to solve this problem...

I'm making an app for an specific purpose and for that I made the app an kiosk app. I needed the app to be able to receive phone calls normally so I made it so the app unlock itself when it received a phone call. For some weird reason when the device gets a phone call while locked, the entire device stops responding and after a while it reboots itself.

Sub PE_PhoneStateChanged (State As String, IncomingNumber As String, Intent As Intent)
    Select State
        Case "IDLE" ' Idle state.
        Case "RINGING" ' Ringing state.

            Log("sono sono sono")
            If IsPaused (Main) = False Then
                CallSubDelayed(Main,"Unlock")
            End If
      End Select

Sub Unlock
    GetContext.RunMethod("stopLockTask", Null)
    WriteLockState(False)
End Sub

Here's the error message :

java.lang.RuntimeException: android.os.DeadSystemException
    at android.os.PowerManager$WakeLock.release(PowerManager.java:2236)
    at android.os.PowerManager$WakeLock$1.run(PowerManager.java:2097)
    at android.os.Handler.handleCallback(Handler.java:883)
    at android.os.Handler.dispatchMessage(Handler.java:100)
    at android.os.Looper.loop(Looper.java:214)
    at android.app.ActivityThread.main(ActivityThread.java:7405)
    at java.lang.reflect.Method.invoke(Native Method)
    at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:502)
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:980)
Caused by: android.os.DeadSystemException
    ... 9 more

 

[Erel]

java.lang.RuntimeException: android.os.DeadSystemException

This error means that the OS is shutting down for some reason.
Looks like you are hitting an OS bug.
Make some tests. See if it is indeed related to the app being locked before the phone call.

 

[roderiko4]

I ran some tests like you said, and now it crashed after 1 phone call: I call, my device unlocks itself to show phone call properly, call ends, device locks itself again, and I call AGAIN then my device freezes and reboots. The logs showed the same error message as above

 

[roderiko4]

I ran some tests like you said, and now it crashed after 1 phone call: I call, my device unlocks itself to show phone call properly, call ends, device locks itself again, and I call AGAIN then my device freezes and reboots. The logs showed the same error message as above

Now I tried doing a test again and the app could unlock itself after receiving 4+ calls, but now I call it again and it freezes...this is inconsistent

EDIT: I forgot I should've posted my device specs, I hope it helps
Lenovo TB-8505X
Android 10

 

[roderiko4]

Did another test and I got this new error message:

main_lock (java line: 2024)
java.lang.reflect.InvocationTargetException
    at java.lang.reflect.Method.invoke(Native Method)
    at anywheresoftware.b4j.object.JavaObject.RunMethod(JavaObject.java:132)
    at redmaster.citofono.v2.main._lock(main.java:2024)
    at java.lang.reflect.Method.invoke(Native Method)
    at anywheresoftware.b4a.BA.raiseEvent2(BA.java:213)
    at anywheresoftware.b4a.keywords.Common.CallSub4(Common.java:1082)
    at anywheresoftware.b4a.keywords.Common.CallSubNew(Common.java:1029)
    at redmaster.citofono.v2.listener._timer1_tick(listener.java:370)
    at java.lang.reflect.Method.invoke(Native Method)
    at anywheresoftware.b4a.BA.raiseEvent2(BA.java:213)
    at anywheresoftware.b4a.objects.Timer$TickTack.run(Timer.java:105)
    at android.os.Handler.handleCallback(Handler.java:883)
    at android.os.Handler.dispatchMessage(Handler.java:100)
    at android.os.Looper.loop(Looper.java:214)
    at android.app.ActivityThread.main(ActivityThread.java:7405)
    at java.lang.reflect.Method.invoke(Native Method)
    at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:502)
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:980)
Caused by: java.lang.RuntimeException: android.os.DeadSystemException
    at android.app.admin.DevicePolicyManager.setLockTaskPackages(DevicePolicyManager.java:8035)
    ... 18 more
Caused by: android.os.DeadSystemException
    ... 19 more
main_lock (java line: 2024)
java.lang.reflect.InvocationTargetException
    at java.lang.reflect.Method.invoke(Native Method)
    at anywheresoftware.b4j.object.JavaObject.RunMethod(JavaObject.java:132)
    at redmaster.citofono.v2.main._lock(main.java:2024)
    at java.lang.reflect.Method.invoke(Native Method)
    at anywheresoftware.b4a.BA.raiseEvent2(BA.java:213)
    at anywheresoftware.b4a.keywords.Common.CallSub4(Common.java:1082)
    at anywheresoftware.b4a.keywords.Common.CallSubNew(Common.java:1029)
    at redmaster.citofono.v2.listener._timer1_tick(listener.java:370)
    at java.lang.reflect.Method.invoke(Native Method)
    at anywheresoftware.b4a.BA.raiseEvent2(BA.java:213)
    at anywheresoftware.b4a.objects.Timer$TickTack.run(Timer.java:105)
    at android.os.Handler.handleCallback(Handler.java:883)
    at android.os.Handler.dispatchMessage(Handler.java:100)
    at android.os.Looper.loop(Looper.java:214)
    at android.app.ActivityThread.main(ActivityThread.java:7405)
    at java.lang.reflect.Method.invoke(Native Method)
    at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:502)
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:980)
Caused by: java.lang.RuntimeException: android.os.DeadSystemException
    at android.app.admin.DevicePolicyManager.setLockTaskPackages(DevicePolicyManager.java:8035)
    ... 18 more
Caused by: android.os.DeadSystemException
    ... 19 more

 

[Erel]

You need to look for an error before the dead system error. Might be in the unfiltered logs.

 

[MbedAndroid]

suddenly i got this today via Firebase. android.os.DeadSystemException
No really a clue. Galaxy 7, android 10. Seeing the posts on stackoverflow most are related to android 10.

android.app.ApplicationPackageManager.getPackageInfoAsUser (ApplicationPackageManager.java:273)


android.app.ApplicationPackageManager.getPackageInfo (ApplicationPackageManager.java:244)


gr.a com.google.android.gms.dynamite_mapsdynamite@212621081@21.26.21 (120400-0):1)

com.google.maps.api.android.lib6.impl.fb.g com.google.android.gms.dynamite_mapsdynamite@212621081@21.26.21 (120400-0):2)


com.google.android.gms.maps.internal.o.aX com.google.android.gms.dynamite_mapsdynamite@212621081@21.26.21 (120400-0):22)

dy.onTransact com.google.android.gms.dynamite_mapsdynamite@212621081@21.26.21 (120400-0):4)

android.os.Binder.transact (Binder.java:949)


com.android.internal.os.ZygoteInit.main (ZygoteInit.java:1100)