如何通过Android应用程序过滤蓝牙标签

Question

How to filter bluetooth tags in times of pairing with apps. For instance, "Tile" doesn't connect with tags other than their authorized tags. My question is, how do they recognize their authorized tags through apps?

Answer 1

A simple solution is to connect to an untrusted device, send a signal with an specific result expected, if it receives fine, then "trust" that device.

Then, on next loads, check the paired MAC address..

Something akin to:

private BluetoothDevice mDevice = null;
if (mDevice == null) {
        BluetoothAdapter mBluetoothAdapter = BluetoothAdapter.getDefaultAdapter();
        if (mBluetoothAdapter != null) {
            if (mBluetoothAdapter.isEnabled()) {
                Set<BluetoothDevice> bluetoothDevices = mBluetoothAdapter
                        .getBondedDevices();
                if (bluetoothDevices != null && bluetoothDevices.size() > 0) {
                    String bondedID = SharedPreferences.getInstance(
                            getApplicationContext()
                    ).getPairedAddress();
                    if (bondedID != null) {
                        for (final BluetoothDevice device : bluetoothDevices) {
                            if (device != null
                                    && device.getAddress().equals(bondedID)) {
                                mDevice = device;
                                break;
                            }
                        }
                    }
                } else {
                    Logger.v(TAG, "There are no Bluetooth Paired devices");
                }
            }
        }
    }