Android Question ImmersiveMode Using B4A [RESOLVED]

Big Dave said:

I have copied the jar and xml files to my Add Library folder but it is not showing in the Library list

Click to expand...

did you refresh the list?

DonManfred said:

did you refresh the list?

Click to expand...

Didn't realise you had to do that. Closed the project and B4A and then reopened and ImmersiveMode is now in the list. TYVM for that.

Can you enlighten me as to the purpose of the B4X Manifest (app compatibility), do I need to include it as the app is B4A not B4XPages.

App is now failing on..

With a null pointer error on the "Sub Activity..." line

java.lang.NullPointerException: Attempt to read from field 'anywheresoftware.b4a.BA b4a.konnqa3.main.activityBA' on a null object reference in method 'java.lang.String b4a.konnqa3.main._activity_windowfocuschanged(boolean)'

I suspect I am missing something?

Thanks in advance.

Big Dave said:

I suspect I am missing something?

Click to expand...

You shouldn't try it in debug mode; try it in release mode.

Filippo said:

You shouldn't try it in debug mode; try it in release mode.

Click to expand...

Tried in Release mode and still getting an error

** Activity (main) Resume **
** Activity (main) Pause, UserClosed = false **
main_activity_windowfocuschanged (java line: 727)
java.lang.NullPointerException: Attempt to read from field 'b4a.claude.immersive.immersivemode b4a.konnqa3.main._imimmersive' on a null object reference in method 'java.lang.String b4a.konnqa3.main._activity_windowfocuschanged(boolean)'
at b4a.konnqa3.main._activity_windowfocuschanged(main.java:727)
at java.lang.reflect.Method.invoke(Native Method)
at anywheresoftware.b4a.BA.raiseEvent2(BA.java:221)
at b4a.konnqa3.main.onWindowFocusChanged(main.java:186)
at com.android.internal.policy.DecorView.onWindowFocusChanged(DecorView.java:2430)
at android.view.View.dispatchWindowFocusChanged(View.java:17541)
at android.view.ViewGroup.dispatchWindowFocusChanged(ViewGroup.java:1542)
at android.view.ViewRootImpl.dispatchFocusEvent(ViewRootImpl.java:5958)
at android.view.ViewRootImpl.handleWindowFocusChanged(ViewRootImpl.java:5841)
at android.view.ViewRootImpl.-$$Nest$mhandleWindowFocusChanged(Unknown Source:0)
at android.view.ViewRootImpl$ViewRootHandler.handleMessageImpl(ViewRootImpl.java:8391)
at android.view.ViewRootImpl$ViewRootHandler.handleMessage(ViewRootImpl.java:8301)
at android.os.Handler.dispatchMessage(Handler.java:110)
at android.os.Looper.loopOnce(Looper.java:273)
at android.os.Looper.loop(Looper.java:363)
at android.app.ActivityThread.main(ActivityThread.java:10060)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:632)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:975)
java.lang.NullPointerException: Attempt to read from field 'b4a.claude.immersive.immersivemode b4a.konnqa3.main._imimmersive' on a null object reference in method 'java.lang.String b4a.konnqa3.main._activity_windowfocuschanged(boolean)'
sending message to waiting queue (OnActivityResult)

Big Dave said:

Tried in Release mode and still getting an error

Click to expand...

I use this code, and it works for me.

Filippo said:

I use this code, and it works for me.

B4X:

Private Sub Activity_WindowFocusChanged(HasFocus As Boolean)
'    Log(HasFocus)
    If HasFocus Then
        Try
            Dim jo As JavaObject = Activity
            Sleep(100) '(300)
            If GetSDKversion >= 36 Then
                jo.RunMethod("setSystemUiVisibility", Array As Object(5894)) '3846 - non-sticky
            Else
                jo.RunMethod("setSystemUiVisibility", Array As Object(8192+16))
            End If
        Catch
            Log("error")
            'Log(LastException) 'This can cause another error
        End Try 'ignore
    End If
End Sub

Public Sub GetSDKversion() As Int
    Dim p As Phone
    Return p.SdkVersion
End Sub

Click to expand...

I copied the code from the "ImmersiveMode" example earlier and it worked for me also. I think I was trying to find a resolution using two different solutions. Thank you for your assistance, very much appreciated.