ScannerFragment: Always show paired card10s, no matter if it's caught in the scan.

That way, we can unpair even if the card10 isn't available any more.

app/src/main/java/de/ccc/events/badge/card10/scanner/ScannerFragment.kt

@@ -48,7 +48,12 @@ class ScannerFragment : Fragment() {
     val callback = object : ScanCallback() {
         override fun onScanResult(callbackType: Int, result: ScanResult) {
             val device = result.device
-            if (device.address.startsWith(CARD10_BLUETOOTH_MAC_PREFIX, true)) {
+            if (device.address.startsWith(CARD10_BLUETOOTH_MAC_PREFIX, true))
+                putToListAdapter(device)
+        }
+    }
+
+    private fun putToListAdapter(device: BluetoothDevice) {
         listAdapter.put(
             Device(
                 btMac = device.address,
@@ -57,8 +62,6 @@ class ScannerFragment : Fragment() {
             )
         )
     }
-        }
-    }
 
     val receiver = object : BroadcastReceiver() {
         override fun onReceive(context: Context, intent: Intent) {
@@ -71,6 +74,14 @@ class ScannerFragment : Fragment() {
         super.onCreate(savedInstanceState)
         activity?.registerReceiver(receiver, IntentFilter(BluetoothDevice.ACTION_BOND_STATE_CHANGED))
         bluetoothAdapter = BluetoothAdapter.getDefaultAdapter();
+        for (device in bluetoothAdapter.bondedDevices.filter {
+            it.address.startsWith(
+                CARD10_BLUETOOTH_MAC_PREFIX,
+                true
+            )
+        }) {
+            putToListAdapter(device)
+        }
         bluetoothAdapter.bluetoothLeScanner.startScan(callback)
     }