gistfile1.java

    private BluetoothAdapter mBluetoothAdapter;
    private Handler mHandler;
    private static final int REQUEST_ENABLE_BT = 1;
    private static final long SCAN_PERIOD = 10000;
    
    @Override
    public void onCreate() {
        if (beaconManager == null)
        {
            Log.d(APP_TAG,"create new beaconmanager");
            try{
                beaconManager = new BeaconManager(getBaseContext());
            }
            catch (Exception e)
            {
                Log.d(APP_TAG,e.toString());
            }
        }
        
        mHandler = new Handler();

        // Use this check to determine whether BLE is supported on the device.  Then you can
        // selectively disable BLE-related features.
        if (!getPackageManager().hasSystemFeature(PackageManager.FEATURE_BLUETOOTH_LE)) {
            Toast.makeText(this, R.string.ble_not_supported, Toast.LENGTH_SHORT).show();
//            finish();
            stopSelf();
        }

        // Initializes a Bluetooth adapter.  For API level 18 and above, get a reference to
        // BluetoothAdapter through BluetoothManager.
        final BluetoothManager bluetoothManager =
                (BluetoothManager) getSystemService(Context.BLUETOOTH_SERVICE);
        mBluetoothAdapter = bluetoothManager.getAdapter();

        // Checks if Bluetooth is supported on the device.
        if (mBluetoothAdapter == null) {
            Toast.makeText(this, R.string.error_bluetooth_not_supported, Toast.LENGTH_SHORT).show();
            stopSelf();
            return;
        }

            scheduleTaskExecutor.scheduleAtFixedRate(new Runnable() {
                public void run() {
                    Log.d(APP_TAG,"Call beacon Scan");
                    scanLeDevice(true);
                }
            }, 0, 35, TimeUnit.SECONDS);
    }
    
    // Device scan callback.
    private BluetoothAdapter.LeScanCallback mLeScanCallback =
            new BluetoothAdapter.LeScanCallback() {

                @Override
                public void onLeScan(final BluetoothDevice device, int rssi, byte[] scanRecord) {
                    runOnUiThread(new Runnable() {
                        @Override
                        public void run() {
                            Log.d("Device Found", "Device : " + device.getName());
                            Log.d("Device Found", "Device : " + device.getAddress());
                        }
                    });
                }
            };
            
    private void runOnUiThread(Runnable runnable) {
        mHandler.post(runnable);
    }