java.io.IOException: Bluetooth not initialized

[Gareth Murfin]

Getting this error with the bluetooth lib on Android (samsung s7 -  Android 8.0)

W/System.err: java.io.IOException: Bluetooth not initialized

W/System.err:     at com.codename1.cordova.Cordova.execute(Cordova.java:33)

W/System.err:     at com.codename1.bluetoothle.Bluetooth.enable(Bluetooth.java:85)

W/System.err:     at userclasses.MainForm.startBluetooth(MainForm.java:55)

W/System.err:     at com.pippa.hobmonitor.MyApplication.start(MyApplication.java:41)

W/System.err:     at com.pippa.hobmonitor.MyApplicationStub.run(MyApplicationStub.java:163)

W/System.err:     at com.pippa.hobmonitor.MyApplicationStub$1.run(MyApplicationStub.java:107)

W/System.err:     at com.codename1.ui.Display.processSerialCalls(Display.java:1298)

W/System.err:     at com.codename1.ui.Display.mainEDTLoop(Display.java:1093)

W/System.err:     at com.codename1.ui.RunnableWrapper.run(RunnableWrapper.java:120)

W/System.err:     at com.codename1.impl.CodenameOneThread$1.run(CodenameOneThread.java:60)

W/System.err:     at java.lang.Thread.run(Thread.java:764)

[Gareth Murfin]

seems to be related to the json lib not working .. any ideas?

 Exception: java.lang.NoSuchMethodError - No direct method <init>(Ljava/util/Map;)V in class Lca/weblite/codename1/json/JSONObject; or its super classes (declaration of 'ca.weblite.codename1.json.JSONObject' appears in /data/app/com.pippa.hobmonitor-i555BGum4BjW27o1gIXtCQ==/base.apk)

W/System.err: java.lang.NoSuchMethodError: No direct method <init>(Ljava/util/Map;)V in class Lca/weblite/codename1/json/JSONObject; or its super classes (declaration of 'ca.weblite.codename1.json.JSONObject' appears in /data/app/com.pippa.hobmonitor-i555BGum4BjW27o1gIXtCQ==/base.apk)

[Shai Almog]

Did you install the dependencies?

[Gareth Murfin]

well I think so.. my libs dir is shown below, anything else required?

Mode                LastWriteTime         Length Name

----                -------------         ------ ----

d-----       28/08/2019     14:03                impl

-a----       27/08/2019     20:46        2264815 CLDC11.jar

-a----       27/08/2019     21:46          50396 CN1Bluethooth.cn1lib

-a----       14/08/2017     10:44          30533 CN1JSON.cn1lib

-a----       27/08/2019     21:19        6256001 CodenameOne.jar

-a----       27/08/2019     21:19       10888836 CodenameOne_SRC.zip

[Kandy Bitxenio]

If you I can send you my libraries, or my dummy project.

Best Regards.

[Gareth Murfin]

That would be great Kandy, a dummy project that you know works would help me greatly. I appreciate your help!

[Kandy Bitxenio]

Hi Gareth

This are my libs, please give me your mail to send the project.

https://www.dropbox.com/sh/d652hpn11bowq0s/AAA-jEVH3WRv-1sueCOReuQ5a?dl=0

My project is copied from:

https://github.com/chen-fishbein/bluetoothle-codenameone/tree/master/BTDemo

Best Regards

[Gareth Murfin]

Thanks very much! Grabbing the libs now, but my internet is poor.. my email is gareth...@gmail.com

[Gareth Murfin]

Thanks Kandy! Your libraries worked perfectly for me. Much appreciated! No idea why mine didnt work!!.. Thanks again, let me know if you ever need any help in return. 

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Gareth Murfin
(Android Freelancer - www.garethmurfin.co.uk)

[Gareth Murfin]

hmmm now im getting android errors, im presuming these need to be set as build hints.. BluetoothLeScanner: fail to start le scan - SecurityException thrown: java.lang.SecurityException: Need ACCESS_COARSE_LOCATION or ACCESS_FINE_LOCATION permission to get scan results

On Wednesday, August 28, 2019 at 12:25:12 AM UTC+1, Gareth Murfin wrote:

[Gareth Murfin]

who knows whats going on this bluetooth library is terrible. 

issue described here.

https://github.com/chen-fishbein/bluetoothle-codenameone/issues/11  

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[Kandy Bitxenio]

Hi Garet, you need to activate the location on Android, se the library documentation, the bluetooth library works fine on IOS and Android.

Best Regards Kandy

[Gareth Murfin]

Oh I see! Yes it seems to work, location is a weird permission to need, and I wonder why it doesnt prompt for it when it requests permission. Thanks again.

[Gareth Murfin]

Still more issues, connecting I always get "Device previously connected, reconnect or close for new device". There is no way to get the address it thinks its connected to in order to call disconnect/reconnect. And it erroneously thinks that I have connected, which I havent.

[Gareth Murfin]

Did you ever get the callback for connect() to work? Doesnt work here, this library seems very flakey..