ble example does not find devices

[fro...@barachant.com]

IDE: NetBeans 8.2
Desktop OS win10
Simulator nope
Device lenowo pb2-690m & samsung galaxy tab 2. both are android 6.0.1

Hi.
I've been debugging original (https://github.com/chen-fishbein/bluetoothle-codenameone/tree/master/BTDemo) version and a debug one of the BLE example and failed.
Basically, all is fine, inits are ok,  (contrarly to him http://stackoverflow.com/questions/43217757/codenameone-ble-initialize-on-ios even if i'm not on IOS yet) but scanning does not return anything.

I have a BLE system that is seen by android's bluetooth preferences, but scanning using the app shows nothing.
My debug version shows that scanning is running (constant timer that checks for isScanning() ) but i never get any event.

Should the example still be fine?

Thank you.

[Shai Almog]

Hi,
are you sure it's a bluetooth LE device and not a Bluetooth device?
Notice the methods are all asynchronous and work based on callbacks which aren't delivered on the EDT.

[Froogle]

Hi.
I am certain this is a BLE device. In the android bluetooth panel -on that same device-, i can see my BLE target hardware.

[Froogle]

An i have also installed a BLE peripheral simulator on my device. It is correctly detected by other devices as a ble service source.
That means the device the code runs on is able to see and share services, but the codenameOne app is not able to see anything from anyone.

And i tested on two devices. Each is able to see the others BLE peripheral simulator in the bluetooth preferences pane.
None of them display anything in the codenameone BLE example application.

On Wednesday, May 3, 2017 at 6:51:04 AM UTC+2, Shai Almog wrote:

[Shai Almog]

I'm not familiar enough with BLE, maybe Steve has an idea.

[Froogle]

That would be nice. I am really looking forward this platform and i need that part to work first.

[Steve Hannah]

It is possible that the library needs to be updated to support Android 6 permissions (i.e. it needs to prompt the user for permissions to access bluetooth).

Do you have any Android 5 devices you can test with to confirm that it works there?

Steve

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Steve Hannah

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Codename One

http://www.codenameone.com

[Shai Almog]

You don't need an Android 5 device to test that theory.
Define the build hint: android.targetSDKVersion=21

If it solves the issue then we need to update the cn1lib for Marshmallow permissions.

[Froogle]

Yes! compiling to sdk21 worked...
Thanks. At least now i have a workaround and i can progress..

[Shai Almog]

Can you please file an issue on the project?
We will need to address that.

[Froogle]

Hello.

Done ! https://github.com/codenameone/CodenameOne/issues/2109

Thanks for your help on this.