BluetoothHelper.java

/* AI generated */
import android.bluetooth.BluetoothAdapter;
import android.bluetooth.BluetoothDevice;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;

import java.util.ArrayList;
import java.util.List;

public class BluetoothHelper {

    private Context context;
    private BluetoothAdapter bluetoothAdapter;
    private List<BluetoothDevice> deviceList;
    private BluetoothListener listener;

    public BluetoothHelper(Context context) {
        this.context = context;
        bluetoothAdapter = BluetoothAdapter.getDefaultAdapter();
        deviceList = new ArrayList<>();
        registerBluetoothReceiver();
    }

    public void setListener(BluetoothListener listener) {
        this.listener = listener;
    }

    private void registerBluetoothReceiver() {
        context.registerReceiver(receiver, new IntentFilter(BluetoothDevice.ACTION_FOUND));
    }

    private final BroadcastReceiver receiver = new BroadcastReceiver() {
        public void onReceive(Context context, Intent intent) {
            String action = intent.getAction();
            if (BluetoothDevice.ACTION_FOUND.equals(action)) {
                BluetoothDevice device = intent.getParcelableExtra(BluetoothDevice.EXTRA_DEVICE);
                deviceList.add(device);
                if (listener != null) {
                    listener.onDeviceFound(deviceList);
                }
            }
        }
    };

    public void startDiscovery() {
        if (bluetoothAdapter != null && bluetoothAdapter.isEnabled()) {
            bluetoothAdapter.startDiscovery();
        }
    }

    public void stopDiscovery() {
        if (bluetoothAdapter != null && bluetoothAdapter.isDiscovering()) {
            bluetoothAdapter.cancelDiscovery();
        }
    }

    public interface BluetoothListener {
        void onDeviceFound(List<BluetoothDevice> devices);
    }
}