Not scanning or discoverying nearby bluetooth devices. (startActivityForResult)

[ritchie-tg]

Greetings, Firstly, thanks for this awesome library. I used it about a year ago for an ESP32 project I was doing. Everything was working great. I revisited that same - once working - project to find issues. A problem I've been having is the only devices detected on the activity (BluetoothState.REQUEST_CONNECT_DEVICE) are devices I have paired through Android's settings. When I press scan for devices, it doesn't scan. The client device is available and detected when using Android setting for Bluetooth > pair a new device. But not in the app, using this library. This happens on three Android devices I own from a Google Nexus 5, Moto x4, and Moto G7 Power.

I'm not sure what is the difference between then and now?

I/OpenGLRenderer: Initialized EGL, version 1.4
D/OpenGLRenderer: Swap behavior 2
I/Choreographer: Skipped 62 frames!  The application may be doing too much work on its main thread.
W/ActivityThread: handleWindowVisibility: no activity for token android.os.BinderProxy@6dda9fa
D/BluetoothSPP: doDiscovery()

And nothing further.

bt.startService(BluetoothState.DEVICE_OTHER); // start bluetooth service
bt.setupService(); // setup bluetooth service
Intent intent = new Intent(getApplicationContext(), DeviceList.class);
startActivityForResult(intent, BluetoothState.REQUEST_CONNECT_DEVICE);

    <uses-permission android:name="android.permission.BLUETOOTH" />
    <uses-permission android:name="android.permission.BLUETOOTH_ADMIN" />
    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
    <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
    <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />

I manually request permission for each permission. Only write access is promoted and requested because Bluetooth isn't considered "dangerous." Yet, when pressing the connect button, I am not asked for bluetooth permissions at all.

The readme state to declare <activity android:name="app.akexorcist.bluetoothspp.DeviceList" /> which I'm guessing you meant in the AndroidManifest.xml? The name is red and flagged in Android studio. No idea. I can't seem to find an answer on that.

[felangga]

having this same issue,

I just found out that it's only showing the paired devices.

[ghost]

I've moved onto the flutter blue libraries. They're currently updated.