Android Question Check if smartphone/tablet has enabled security option

[Magma]

Hi there...

Is it possible to read settings and specifically if user has enabled a security option (for example pin or slide or motif) ?

Thanks in advance!

 

[Erel]

I don't think that it is possible to get the lock screen type.

The Administrator library might be relevant: https://www.b4x.com/android/forum/threads/device-administrator-library.19208/

 

[Magma]

@Erel i am having problem when the device wake up and need slide or pin with my app (my app has service for gps + mariadb sql writing) - when the app wake up without pin and slide - works perfect.. but when need pin or slide going dead... :-(

 

[Erel]

but when need pin or slide going dead

Does it crash?

 

[Magma]

Yes...

 

[DonManfred]

with which error?

 

[Magma]

To be more specific... the problem is when having PIN screen type...

I can give you the activity resume and pause but no more (it 's a big project and for time i don't want to share it, understand me):

Sub Activity_Pause (UserClosed As Boolean)

'If UserClosed=True Then
    showactiva=0
       
    If TTSON=True Then
    If TTS1.IsInitialized=True Then TTS1.Release
    End If
    If camEx.IsInitialized=True Then
        camEx.Release
    End If

        'audiorec.releaseRecorder
    If goon="1" Then

        timer2.Enabled=False
        timer3.Enabled=False
        timer4.Enabled=False
        rectimer.Enabled=False
        timerexit.Enabled=False
   
    End If
'End If
   
   
End Sub

Sub Activity_Resume
Log("realfirst:" & realfirst)
    If mustexit=1 Then
        ExitApplication
    End If
    If goon="1" Then
        showactiva=1
        If realfirst>0 Then
            If TTSON=True Then
                If TTS1.IsInitialized = False Then
                    TTS1.Initialize("TTS1")
                    'Sleep(1000)
                    'selecttts
                End If
            End If
            'If camEx.IsInitialized=False Then
           
                InitializeCamera
   

            timer2.Enabled=True
            timer3.Enabled=True
            timer4.Enabled=True
            Else
            startall
        End If
       
        Else
        StartActivity("check")
    End If
End Sub

The problem is only when i have pin lock type (slide works ok)

FROM Logs after pressing power-button to close screen and need to set pin after re-open - seems to resuming ???

lib:queryasync()~i:** Activity (main) Pause, UserClosed = false **
** Activity (main) Create, isFirst = false **
running waiting messages (1)
** Activity (main) Resume **
....here doing what doing when starting....
...here pressing button to open screen... but...
Reposting event: mysql_execresult
lib:queryasync()
main_timer3_tick (java line: 5778)
java.lang.NullPointerException: Attempt to invoke virtual method 'int anywheresoftware.b4a.objects.TabStripViewPager.getCurrentPage()' on a null object reference
at mvt.client.main._timer3_tick(main.java:5778)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at anywheresoftware.b4a.BA.raiseEvent2(BA.java:186)
at anywheresoftware.b4a.objects.Timer$TickTack.run(Timer.java:105)
at android.os.Handler.handleCallback(Handler.java:815)
at android.os.Handler.dispatchMessage(Handler.java:104)
at android.os.Looper.loop(Looper.java:194)
at android.app.ActivityThread.main(ActivityThread.java:5624)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:959)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:754)
*** Service (starter) Create ***
** Service (starter) Start **
** Service (gpstrack) Create **
** Service (gpstrack) Start **

what happening.... as i said at slide works perfect... at pin... get the above... TABSTRIP error


Forgot tell you that using this code:

Sub SetShowWhenLocked
    Dim r As Reflector
    r.Target = r.GetActivity
    r.Target = r.RunMethod("getWindow")
    r.RunMethod2("addFlags", 6815872, "java.lang.int")
   
End Sub

+If before pressing power button - press home to hide activity and go at home..after pressing power button will not get/take error...

 

[Erel]

Check your code and see why you are trying to get the CurrentPage in Timer3_Tick before the layout was loaded.

 

[Magma]

can i check layout if loaded ?

i believed that timer was disabled (false).. .but at resume goes on

ps: and why this is different from slide option at pin ?

 

[Magma]

Removing SetShowWhenLocked.... not giving error... :-(

How can i have it too..?

 

[Erel]

The problem is somewhere in your code. The timer raises the event before you load the layout.

 

[Magma]

Searching Forum, found this:

https://www.b4x.com/android/forum/threads/activity-always-on-top.45601/#post-280538

at #6 Post...

says that you can run the same "command" if not having screen lock..

so i can;t have my activity on top and screen will goes off ?

 

[Magma]

@Erel how do you explain that with no pin lock type works perfect ?

 

[Erel]

Hard to say without understanding your code. However the error itself should be simple to fix.

 

[Magma]

Sorry but did you check the Sub SetShowWhenLocked and the post #6 from other question

https://www.b4x.com/android/forum/threads/activity-always-on-top.45601/#post-280538
... i have the feeling that someway is the same problem...

Because when i remove the call of SetShowWhenLocked works perfect...


It is difficult to trap something when in other way works perfect...

 

[Erel]

There is no doubt that it is related to that method. However it is impossible to help you without seeing your code, or better a small project with the minimum code that reproduces this issue.

 

[Magma]

I understand... I ll try to make a project from the subs came the error...