블루투스 검색, startDiscovery() 결과 ㅠㅠ

Question

블루투스 검색에서 한 소스는 정상적으로 ACTION_FOUND를 받아오는데,

한 소스는 ACTION_DISCOVERY_FINISHED를 받아오네요 ㅠㅠ

menifests에 권한도 동일하게 줬고,

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

소스를 Compare 해봐도 다른 부분이 없는데 말이죠;;

혹시나 해서 소스도 올립니다.

BroadcatReceiver 등록하고 startDiscovery() 해주면 검색 되야 하는거 아닌가요 ㅠㅠ

따로 설정해야 되는 부분이 있는건가요? ㅠㅠ

 

public class DeviceListActivity extends Activity {
    public static String EXTRA_DEVICE_ADDRESS = "device_address";
    private BluetoothAdapter mBtAdapter;
    private ArrayAdapter<String> mNewDevicesArrayAdapter;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        // Setup the window
        requestWindowFeature(Window.FEATURE_INDETERMINATE_PROGRESS);
        setContentView(R.layout.activity_device_list);

        // Set result CANCELED in case the user backs out
        setResult(Activity.RESULT_CANCELED);

        // Initialize the button to perform device discovery
        Button scanButton = (Button) findViewById(R.id.button_scan);
        scanButton.setOnClickListener(new View.OnClickListener() {
            public void onClick(View v) {
                doDiscovery();
                v.setVisibility(View.GONE);
                Log.d("SEOK", "On Click Scan !!!");
            }
        });

        // Initialize array adapters. One for already paired devices and
        // one for newly discovered devices
        ArrayAdapter<String> pairedDevicesArrayAdapter =
                new ArrayAdapter<String>(this, R.layout.adapter_device_name);
        mNewDevicesArrayAdapter = new ArrayAdapter<String>(this, R.layout.adapter_device_name);

        // Find and set up the ListView for paired devices
        ListView pairedListView = (ListView) findViewById(R.id.paired_devices);
        pairedListView.setAdapter(pairedDevicesArrayAdapter);
        pairedListView.setOnItemClickListener(mDeviceClickListener);

        // Find and set up the ListView for newly discovered devices
        ListView newDevicesListView = (ListView) findViewById(R.id.new_devices);
        newDevicesListView.setAdapter(mNewDevicesArrayAdapter);
        newDevicesListView.setOnItemClickListener(mDeviceClickListener);

        // Register for broadcasts when a device is discovered
        //IntentFilter filter = new IntentFilter(BluetoothDevice.ACTION_FOUND);
        IntentFilter filter = new IntentFilter(BluetoothDevice.ACTION_FOUND);
        this.registerReceiver(mReceiver, filter);

        // Register for broadcasts when discovery has finished
        filter = new IntentFilter(BluetoothAdapter.ACTION_DISCOVERY_FINISHED);
        this.registerReceiver(mReceiver, filter);

        // Get the local Bluetooth adapter
        mBtAdapter = BluetoothAdapter.getDefaultAdapter();

        // Get a set of currently paired devices
        Set<BluetoothDevice> pairedDevices = mBtAdapter.getBondedDevices();

        // If there are paired devices, add each one to the ArrayAdapter
        if (pairedDevices.size() > 0) {
            findViewById(R.id.title_paired_devices).setVisibility(View.VISIBLE);
            for (BluetoothDevice device : pairedDevices) {
                pairedDevicesArrayAdapter.add(device.getName() + "\n" + device.getAddress());
            }
        } else {
            String noDevices = getResources().getText(R.string.none_paired).toString();
            pairedDevicesArrayAdapter.add(noDevices);
        }
    }
   
    /**
     * Start device discover with the BluetoothAdapter
     */
    private void doDiscovery() {
        Log.d(TAG, "doDiscovery()");

        // Indicate scanning in the title
        setProgressBarIndeterminateVisibility(true);
        setTitle(R.string.scanning);

        // Turn on sub-title for new devices
        findViewById(R.id.title_new_devices).setVisibility(View.VISIBLE);

        // If we're already discovering, stop it
        if (mBtAdapter.isDiscovering()) {
            mBtAdapter.cancelDiscovery();
        }

        // Request discover from BluetoothAdapter
        mBtAdapter.startDiscovery();
    }

    /**
     * The BroadcastReceiver that listens for discovered devices and changes the title when
     * discovery is finished
     */
    private final BroadcastReceiver mReceiver = new BroadcastReceiver() {
        @Override
        public void onReceive(Context context, Intent intent) {
            String action = intent.getAction();
            Log.d(TAG, "onReceive: BLUETOOTH WOW!! " + action);
            // When discovery finds a device
            if (BluetoothDevice.ACTION_FOUND.equals(action)) {
                // Get the BluetoothDevice object from the Intent
                BluetoothDevice device = intent.getParcelableExtra(BluetoothDevice.EXTRA_DEVICE);
                // If it's already paired, skip it, because it's been listed already
                if (device.getBondState() != BluetoothDevice.BOND_BONDED) {
                    mNewDevicesArrayAdapter.add(device.getName() + "\n" + device.getAddress());
                }
                // When discovery is finished, change the Activity title
            } else if (BluetoothAdapter.ACTION_DISCOVERY_FINISHED.equals(action)) {
                setProgressBarIndeterminateVisibility(false);
                setTitle(R.string.select_device);
                if (mNewDevicesArrayAdapter.getCount() == 0) {
                    String noDevices = getResources().getText(R.string.none_found).toString();
                    mNewDevicesArrayAdapter.add(noDevices);
                }
            }
        }
    };

}

Answer 1

저도 이 문제때문에 블루투스 scan을 못하고있네요.. 하앙...

Comments

http://blog.naver.com/siggry4u/221002441118
댓글에 소스 표시하기 힘들어 제 블로그에 해결방법 올려놨습니다.
최선의 방법인지는 모르겠지만 도움이 되었으면 합니다.

Answer 2

registerReceiver할때요

두번 register하고 있는데 마지막것이 첫번째것을 덮어쓰기때문에 그런걸겁니다.

 

인텐트 필터 만드셔서 액션 두개 add해주시고 registerReceiver해보세요

filter.addAction(BluetoothDevice.ACTION_FOUND);

filter.addAction(BluetoothDevice.ACTION_DISCOVERY_FINISHED);

this.registerReceiver(mReceiver, filter);