Interesting we are also working on a Bluetooth library

Question

louiscad · Answer

< shayla> What kind of Bluetooth library Bluetooth Classic BluetoothScanner BluetoothLeScanner BluetoothGatt Something more specific In my case I ll actually open source two libraries One for BluetoothGatt with coroutines another without coroutines for scanning Beacons with initial support for Eddystone UID and iBeacon which is based on Android 5 0+ BluetoothLeScanner

shayla · Answer

< louiscad> Currently the company I work for has a Swift library Goal is to bring some of the convenience of operation queueing and device state management to Android From a scanning standpoint it supports BluetoothScanner pre lollipop and bluetoothLeScanner post lollipop as well as a wrapper around BluetoothGatt for read write listen functionalities

shayla · Answer

Although full disclaimer this is my first large Bluetooth project so I am still learning a bunch about the gritty details

louiscad · Answer

< shayla> My library may be of great help then for BluetoothGatt I ll keep you in the loop for when it s on GitHub Note that the first version will only support read write notify but not write no response and a few other things that I couldn t test but suggestions will be welcome to get it exhaustive to the BluetoothGatt capabilities on Android

shayla · Answer

That would be great please do slightly smiling face

orangy · Answer

Consider dropping a note to < C2YH04E3S|opensource>

louiscad · Answer

< orangy> Sure will do I m so excited to open source this work I won t be able to forget Is cross posting to < C0B8M7BUY|android> okay too

orangy · Answer

I think so

deviant · Answer

< louiscad> ble api on android is extremely buggy especially on some samsungs i wish you lot of patience and luck slightly smiling face

louiscad · Answer

< deviant> Which Samsungs and other devices exactly What kind of problem exactly Personally had no issue testing on a Samsung Galaxy A5 2016 I plan to test it on my Nexus 6P and other devices too

deviant · Answer

i had a lot of pain with such issue <https github com NordicSemiconductor Android DFU Library issues 1>

deviant · Answer

the problematic device was S5 if i m not mistaken

deviant · Answer

also i had random 133 and 22 errors on xiaomi devices

deviant · Answer

and all known workarounds barely helped

deviant · Answer

like wait 600 ms then reconnect smile

louiscad · Answer

< deviant> Will you be able to test your use case again with the problematic devices with my library when it s released should be on GitHub by the 26th I m asking because I got 133 errors when using GATT without my library but I didn t get any except consistently when trying reliableWrite but the device may not support it at all and this may be because I added mutexes that enforces waiting an operation including it s callback to complete before proceeding with the next operation so I d be interested in knowing if it solves your issues

deviant · Answer

unfortunately i don t own any of samsungs right now

deviant · Answer

or fortunately