Bluetooth: app crashes when conneceting to arbitrary device

[marcnause]

Actual Behaviour
The app crashes when user tries to connect to a Bluetooth device.

Expected Behaviour
The app shouldn't crash in any circumstances.

Steps to reproduce it
Scan Bluetooth devices and try to connect to any device.

LogCat for the issue

FATAL EXCEPTION: main
Process: io.pslab, PID: 18312
java.lang.RuntimeException: Error receiving broadcast Intent { act=android.bluetooth.device.action.FOUND flg=0x10 pkg=io.pslab (has extras) } in io.pslab.fragment.BluetoothScanFragment$1@5a2bfd
at android.app.LoadedApk$ReceiverDispatcher$Args.lambda$getRunnable$0$android-app-LoadedApk$ReceiverDispatcher$Args(LoadedApk.java:1800)
at android.app.LoadedApk$ReceiverDispatcher$Args$$ExternalSyntheticLambda0.run(Unknown Source:2)
at android.os.Handler.handleCallback(Handler.java:942)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loopOnce(Looper.java:201)
at android.os.Looper.loop(Looper.java:288)
at android.app.ActivityThread.main(ActivityThread.java:7932)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:548)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:942)
Caused by: java.lang.NullPointerException: Attempt to invoke virtual method 'int android.content.Context.checkPermission(java.lang.String, int, int)' on a null object reference
at androidx.core.content.ContextCompat.checkSelfPermission(ContextCompat.java:552)
at io.pslab.fragment.BluetoothScanFragment$1.onReceive(BluetoothScanFragment.java:53)
at android.app.LoadedApk$ReceiverDispatcher$Args.lambda$getRunnable$0$android-app-LoadedApk$ReceiverDispatcher$Args(LoadedApk.java:1790)
at android.app.LoadedApk$ReceiverDispatcher$Args$$ExternalSyntheticLambda0.run(Unknown Source:2) 
at android.os.Handler.handleCallback(Handler.java:942) 
at android.os.Handler.dispatchMessage(Handler.java:99) 
at android.os.Looper.loopOnce(Looper.java:201) 
at android.os.Looper.loop(Looper.java:288) 
at android.app.ActivityThread.main(ActivityThread.java:7932) 
at java.lang.reflect.Method.invoke(Native Method) 
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:548) 
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:942) 

Screenshots of the issue

Screen_recording_20250118_235922.mp4

Would you like to work on the issue?
Maybe

[AsCress]

@marcnause I guess this arises because of the fact that we haven't configured support for Bluetooth connections in the app. I wonder whether we should work on issues relating to Bluetooth ? We haven't decided yet if we should work on developing this feature in the app, provided that we've already implemented wireless connection using Wifi.
This is something which can be decided upon.

[marcnause]

@AsCress As discussed in our weekly meeting, we should remove the Bluetooth option since Bluetooth is not supported, nobody is working on it and we have working WiFi support now.