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kai-morich / SimpleBluetoothTerminal

Android terminal app for Bluetooth classic devices using SPP profile
MIT License
447 stars 166 forks source link

Connection always fails on Android API 28 #2

Closed OuterObsessionSoftware closed 5 years ago

OuterObsessionSoftware commented 5 years ago

I've been recently working on a app based on your SimpleBluetoothTerminal example and it works really well.

I've started to do testing on a range of devices and noticed something strange. On one of our devices (Samsung S8 API 28) it fails to establish a connection. I tried loading up the unmodified example and the Google Play version with identical results.

The only thing I haven't been able to test is if the failed connection is specific to certain Bluetooth devices or all Bluetooth devices.

Did they change the way Bluetooth operates in 28? I know in Android Q they're making big changes to the Bluetooth stack. It's not a big deal at all just thought that was kinda strange.

kai-morich commented 5 years ago

I im not aware of changes with API 28. On test devices everything works as before

Chuntianhong commented 2 years ago

I also have a same issue. It doesn't connect in Android 9 device(API 29). With same app, connect to Android 7,

socket = device.createRfcommSocketToServiceRecord(BLUETOOTH_SPP);
socket.connect();

In connect() function, it gives exception. Would you give me any suggestion?