Android Question Can't share variable between activities

[App Dude]

I have 2 activities in my app, and can't seem to share an object between them. I've added both activities as modules.

(1) In my main activity, I have ...

Sub Process_Globals
    'These global variables will be declared once when the application starts.
    'These variables can be accessed from all modules.
    Public bleMgr As BleManager2
End Sub

In the second activity, I have ...

Sub Activity_Create(FirstTime As Boolean)
    'Do not forget to load the layout file created with the visual designer. For example:
    Activity.LoadLayout("BLESelector")
    bleMgr.Scan(Null)

But I get a compilation error...
"Error description: Undeclared variable 'blemgr' is used before it was assigned any value."


I tried moving the bleMgr declaration to the Service_Create sub in the Starter activity, but then it doesn't work in either activity.
(BTW, I'm initializing etc but not showing that as I don't see it being relevant here)

I am able to share an Int variable without any errors. Is there something specific about the BleManager2 that makes it have this issue? Or what else am I missing here?

Thanks.

 

[BillMeyer]

In your second activity use:

Main.bleMgr.Scan(Null)

If you declare "public" in an activity and you wish to refer to it, you always need to prefix its name - in this case "Main".

 

[App Dude]

Excellent... that works. Thanks!

 

[Erel]

Don't manage BLE from an Activity. Use the starter service for this: https://www.b4x.com/android/forum/threads/ble-2-bluetooth-low-energy.59937/