android.bluetooth.BluetoothAdapter#isEnabled

Source File: LollipopScanner.java From RxCentralBle with Apache License 2.0

7 votes

private void startScan(PublishSubject scanDataSubject) {
  BluetoothAdapter adapter = BluetoothAdapter.getDefaultAdapter();
  if (adapter != null && adapter.isEnabled()) {
    // Setting service uuid scan filter failing on Galaxy S6 on Android 7.
    // Other devices and versions of Android have additional issues with Scan Filters.
    // Manually filter on scan operation.  Add a dummy filter to avoid Android 8.1+ enforcement
    // of filters during background scanning.
    List<ScanFilter> filters = new ArrayList<>();
    ScanFilter.Builder scanFilterBuilder = new ScanFilter.Builder();
    filters.add(scanFilterBuilder.build());

    ScanSettings.Builder settingsBuilder = new ScanSettings.Builder();
    settingsBuilder.setScanMode(ScanSettings.SCAN_MODE_LOW_LATENCY);

    BluetoothLeScanner bleScanner = adapter.getBluetoothLeScanner();
    if (bleScanner != null) {
      bleScanner.startScan(filters, settingsBuilder.build(), scanCallback);
    } else {
      if (RxCentralLogger.isError()) {
        RxCentralLogger.error("startScan - BluetoothLeScanner is null!");
      }

      scanDataSubject.onError(new ConnectionError(SCAN_FAILED));
    }
  } else {
    if (RxCentralLogger.isError()) {
      if (adapter == null) {
        RxCentralLogger.error("startScan - Default Bluetooth Adapter is null!");
      } else {
        RxCentralLogger.error("startScan - Bluetooth Adapter is disabled.");
      }
    }

    scanDataSubject.onError(new ConnectionError(SCAN_FAILED));
  }

}

Source File: BleUtils.java From Bluefruit_LE_Connect_Android with MIT License

6 votes

public static int getBleStatus(Context context) {
    if (!context.getPackageManager().hasSystemFeature(PackageManager.FEATURE_BLUETOOTH_LE)) {
        return STATUS_BLE_NOT_AVAILABLE;
    }

    final BluetoothAdapter adapter = getBluetoothAdapter(context);
    // Checks if Bluetooth is supported on the device.
    if (adapter == null) {
        return STATUS_BLUETOOTH_NOT_AVAILABLE;
    }

    if (!adapter.isEnabled()) {
        return STATUS_BLUETOOTH_DISABLED;
    }

    return STATUS_BLE_ENABLED;
}

Source File: EspMainActivity.java From esp-idf-provisioning-android with Apache License 2.0

6 votes

private void addDeviceClick() {

        if (BuildConfig.isQrCodeSupported) {

            gotoQrCodeActivity();

        } else {

            if (deviceType.equals(AppConstants.DEVICE_TYPE_BLE) || deviceType.equals(AppConstants.DEVICE_TYPE_BOTH)) {

                final BluetoothManager bluetoothManager = (BluetoothManager) getSystemService(Context.BLUETOOTH_SERVICE);
                BluetoothAdapter bleAdapter = bluetoothManager.getAdapter();

                if (!bleAdapter.isEnabled()) {
                    Intent enableBtIntent = new Intent(BluetoothAdapter.ACTION_REQUEST_ENABLE);
                    startActivityForResult(enableBtIntent, REQUEST_ENABLE_BT);
                } else {
                    startProvisioningFlow();
                }
            } else {
                startProvisioningFlow();
            }
        }
    }

Source File: BluetoothManager.java From libcommon with Apache License 2.0

6 votes

/**
 * 他の機器から探索可能になるように要求する
 * bluetoothに対応していないか無効になっている時はIllegalStateException例外を投げる
 * @param activity
 * @param duration 探索可能時間[秒]
 * @return 既に探索可能であればtrue
 * @throws IllegalStateException
 */
public static boolean requestDiscoverable(@NonNull final Activity activity, final int duration) throws IllegalStateException {
	final BluetoothAdapter adapter = BluetoothAdapter.getDefaultAdapter();
	if ((adapter == null) || !adapter.isEnabled()) {
		throw new IllegalStateException("bluetoothに対応していないか無効になっている");
	}
	if (adapter.getScanMode() != BluetoothAdapter.SCAN_MODE_CONNECTABLE_DISCOVERABLE) {
		final Intent intent = new Intent(BluetoothAdapter.ACTION_REQUEST_DISCOVERABLE);
		intent.putExtra(BluetoothAdapter.EXTRA_DISCOVERABLE_DURATION, duration);
		activity.startActivity(intent);
	}
	return adapter.getScanMode() == BluetoothAdapter.SCAN_MODE_CONNECTABLE_DISCOVERABLE;
}

Source File: BluetoothManager.java From libcommon with Apache License 2.0

6 votes

/**
 * 他の機器から探索可能になるように要求する
 * bluetoothに対応していないか無効になっている時はIllegalStateException例外を投げる
 * @param fragment
 * @param duration 0以下ならデフォルトの探索可能時間で120秒、 最大300秒まで設定できる
 * @return
 * @throws IllegalStateException
 */
public static boolean requestDiscoverable(@NonNull final Fragment fragment, final int duration) throws IllegalStateException {
	final BluetoothAdapter adapter = BluetoothAdapter.getDefaultAdapter();
	if ((adapter == null) || !adapter.isEnabled()) {
		throw new IllegalStateException("bluetoothに対応していないか無効になっている");
	}
	if (adapter.getScanMode() != BluetoothAdapter.SCAN_MODE_CONNECTABLE_DISCOVERABLE) {
		final Intent intent = new Intent(BluetoothAdapter.ACTION_REQUEST_DISCOVERABLE);
		if ((duration > 0) && (duration <= 300)) {
			intent.putExtra(BluetoothAdapter.EXTRA_DISCOVERABLE_DURATION, duration);
		}
		fragment.startActivity(intent);
	}
	return adapter.getScanMode() == BluetoothAdapter.SCAN_MODE_CONNECTABLE_DISCOVERABLE;
}

Source File: BluetoothUtils.java From SimpleSmsRemote with MIT License

6 votes

/**
 * set bluetooth state
 *
 * @param enabled bluetooth state
 * @throws Exception
 */
public static void SetBluetoothState(boolean enabled) throws Exception {
    BluetoothAdapter bluetoothAdapter = getDefaultBluetoothHandle();

    boolean isEnabled = bluetoothAdapter.isEnabled();
    if (enabled && !isEnabled) {
        if (!bluetoothAdapter.enable())
            throw new Exception("enabling bluetooth failed");
    } else if (!enabled && isEnabled) {
        if (!bluetoothAdapter.disable())
            throw new Exception("disabling bluetooth failed");
    }
}

Source File: BleManager.java From EasyBle with Apache License 2.0

6 votes

/**
 * Turn on local bluetooth, calling the method will show users a request dialog
 * to grant or reject,so you can get the result from Activity#onActivityResult()
 *
 * @param activity    activity, note that to get the result whether users have granted
 *                    or rejected to enable bluetooth, you should handle the method
 *                    onActivityResult() of this activity
 * @param requestCode enable bluetooth request code
 */
public static void enableBluetooth(Activity activity, int requestCode) {
    if (activity == null || requestCode < 0) {
        return;
    }
    BluetoothAdapter adapter = BluetoothAdapter.getDefaultAdapter();
    if (adapter != null && !adapter.isEnabled()) {
        Intent intent = new Intent(BluetoothAdapter.ACTION_REQUEST_ENABLE);
        activity.startActivityForResult(intent, requestCode);
    }
}

Source File: GattServerActivity.java From sample-bluetooth-le-gattserver with Apache License 2.0

6 votes

@Override
protected void onDestroy() {
    super.onDestroy();

    BluetoothAdapter bluetoothAdapter = mBluetoothManager.getAdapter();
    if (bluetoothAdapter.isEnabled()) {
        stopServer();
        stopAdvertising();
    }

    unregisterReceiver(mBluetoothReceiver);
}

Source File: HomeActivity.java From apollo-DuerOS with Apache License 2.0

6 votes

private void updateBlueToothStatus() {
    BluetoothAdapter mBluetoothAdapter = BluetoothAdapter.getDefaultAdapter();
    if (mBluetoothAdapter == null) {
        mBtImg.setImageResource(R.drawable.bt_off);
    } else {
        if (mBluetoothAdapter.isEnabled()) {
            mBtImg.setImageResource(R.drawable.bt_on);
        } else {
            mBtImg.setImageResource(R.drawable.bt_off);
        }
    }
}

Source File: DalvikBleService.java From attach with GNU General Public License v3.0

6 votes

private void init() {
    Log.v(TAG, "DalvikBle, init");
    boolean fineloc = Util.verifyPermissions(Manifest.permission.ACCESS_FINE_LOCATION);
    if (!fineloc) {
        Log.v(TAG, "No permission to get fine location");
    }
    final BluetoothAdapter adapter = BluetoothAdapter.getDefaultAdapter();
    if (!adapter.isEnabled()) {
        Log.v(TAG, "DalvikBle, init, adapter not enabled");
        Intent enableBtIntent = new Intent(BluetoothAdapter.ACTION_REQUEST_ENABLE);
        IntentHandler intentHandler = new IntentHandler() {
            @Override
            public void gotActivityResult (int requestCode, int resultCode, Intent intent) {
                if (requestCode == REQUEST_ENABLE_BT && resultCode == RESULT_OK) {
                    scanner = adapter.getBluetoothLeScanner();
                }
            }
        };

        if (activity == null) {
            LOG.log(Level.WARNING, "Activity not found. This service is not allowed when "
                    + "running in background mode or from wearable");
            return;
        }
        Util.setOnActivityResultHandler(intentHandler);

        // A dialog will appear requesting user permission to enable Bluetooth
        activity.startActivityForResult(enableBtIntent, REQUEST_ENABLE_BT);

    } else {
        scanner = adapter.getBluetoothLeScanner();
    }

}

Source File: MainActivity.java From PodEmu with GNU General Public License v3.0

6 votes

public void start_stop_service(View v)
{


    if(serviceBound)
    {
        PodEmuLog.debug("MA: Stop service initiated...");
        stop_service(v);
    }
    else
    {
        BluetoothAdapter bt = BluetoothAdapter.getDefaultAdapter();

        if( bt!=null && bluetoothEnabled && !bt.isEnabled() )
        {
            PodEmuLog.debug("MA: bt requested but not enabled. Not starting service.");
            requestBluetoothPermissions();
            return;
        }
        PodEmuLog.debug("MA: Start service initiated...");
        start_service();
    }
}

Source File: TaskbarController.java From Taskbar with Apache License 2.0

6 votes

private Drawable getBluetoothDrawable() {
    BluetoothAdapter adapter = BluetoothAdapter.getDefaultAdapter();
    if(adapter != null && adapter.isEnabled())
        return getDrawableForSysTray(R.drawable.tb_bluetooth);

    return null;
}

Source File: BluetoothUtil.java From Rumble with GNU General Public License v3.0

5 votes

public static boolean isEnabled() {
    BluetoothAdapter adapter = BluetoothUtil.getBluetoothAdapter(RumbleApplication.getContext());
    if(adapter == null)
        return false;
    return adapter.isEnabled();
}

Source File: SettingsActivity.java From PodEmu with GNU General Public License v3.0

5 votes

public void selectBluetoothDevice(View v)
{
    BluetoothAdapter btAdapter = BluetoothAdapter.getDefaultAdapter();

    if( btAdapter != null && btAdapter.isEnabled() && btDevices.size() > 0 )
    {
        BluetoothDeviceDialogFragment bluetoothDeviceDialog = new BluetoothDeviceDialogFragment();
        bluetoothDeviceDialog.setBluetoothDevices(btDevices);
        bluetoothDeviceDialog.show(getSupportFragmentManager(), "bt_tag");
    }
    else
    {
        new AlertDialog.Builder(this)
                .setTitle("Warning")
                .setMessage("No paired devices found or bluetooth is disabled. Please go to bluetooth settings and pair device first. Please also ensure that bluetooth is enabled.")
                .setPositiveButton(android.R.string.yes, new DialogInterface.OnClickListener()
                {
                    public void onClick(DialogInterface dialog, int which)
                    {
                        // continue with action
                    }
                })

                /* Disabled BLE in v45

                .setNegativeButton("Scan BLE", new DialogInterface.OnClickListener()
                {
                    public void onClick(DialogInterface dialog, int which)
                    {
                        if (getPackageManager().hasSystemFeature(PackageManager.FEATURE_BLUETOOTH_LE))
                        {
                            BluetoothLEDeviceDialogFragment bluetoothLEDeviceDialog = new BluetoothLEDeviceDialogFragment();
                            bluetoothLEDeviceDialog.show(getSupportFragmentManager(), "ble_tag");
                        }
                        else
                        {
                            Toast.makeText(SettingsActivity.this, R.string.bleNotSupported, Toast.LENGTH_SHORT).show();
                        }

                    }
                })
                */

                .setIcon(android.R.drawable.ic_dialog_info)
                .show();
    }
}

Source File: BeaconsFragment.java From Android-nRF-Beacon-for-Eddystone with BSD 3-Clause "New" or "Revised" License

5 votes

/**
 * Checks whether the Bluetooth adapter is enabled.
 */
private boolean isBleEnabled() {
    final BluetoothManager bm = (BluetoothManager) getActivity().getSystemService(Context.BLUETOOTH_SERVICE);
    final BluetoothAdapter ba = bm.getAdapter();
    return ba != null && ba.isEnabled();
}

Source File: BluetoothUtils.java From microbit with Apache License 2.0

5 votes

public static ConnectedDevice getPairedMicrobit(Context ctx) {
    SharedPreferences pairedDevicePref = ctx.getApplicationContext().getSharedPreferences(PREFERENCES_KEY,
            Context.MODE_MULTI_PROCESS);

    if(sConnectedDevice == null) {
        sConnectedDevice = new ConnectedDevice();
    }

    if(pairedDevicePref.contains(PREFERENCES_PAIREDDEV_KEY)) {
        boolean pairedMicrobitInSystemList = false;
        String pairedDeviceString = pairedDevicePref.getString(PREFERENCES_PAIREDDEV_KEY, null);
        Gson gson = new Gson();
        sConnectedDevice = gson.fromJson(pairedDeviceString, ConnectedDevice.class);
        //Check if the microbit is still paired with our mobile
        BluetoothAdapter mBluetoothAdapter = ((BluetoothManager) MBApp.getApp().getSystemService(Context
                .BLUETOOTH_SERVICE)).getAdapter();
        if(mBluetoothAdapter.isEnabled()) {
            Set<BluetoothDevice> pairedDevices = mBluetoothAdapter.getBondedDevices();
            for(BluetoothDevice bt : pairedDevices) {
                if(bt.getAddress().equals(sConnectedDevice.mAddress)) {
                    pairedMicrobitInSystemList = true;
                    break;
                }
            }
        } else {
            //Do not change the list until the Bluetooth is back ON again
            pairedMicrobitInSystemList = true;
        }

        if(!pairedMicrobitInSystemList) {
            Log.e("BluetoothUtils", "The last paired microbit is no longer in the system list. Hence removing it");
            //Return a NULL device & update preferences
            sConnectedDevice.mPattern = null;
            sConnectedDevice.mName = null;
            sConnectedDevice.mStatus = false;
            sConnectedDevice.mAddress = null;
            sConnectedDevice.mPairingCode = 0;
            sConnectedDevice.mfirmware_version = null;
            sConnectedDevice.mlast_connection_time = 0;

            setPairedMicroBit(ctx, null);
        }
    } else {
        sConnectedDevice.mPattern = null;
        sConnectedDevice.mName = null;
    }
    return sConnectedDevice;
}

Source File: DefaultPreconditions.java From neurosky-android-sdk with Apache License 2.0

5 votes

@Override
public boolean isBluetoothEnabled(BluetoothAdapter bluetoothAdapter) {
  return (bluetoothAdapter != null && bluetoothAdapter.isEnabled());
}

Source File: BluetoothManager.java From libcommon with Apache License 2.0

4 votes

/**
 * 端末がBluetoothに対応しているが無効になっていれば有効にするように要求する
 * 前もってbluetoothAvailableで対応しているかどうかをチェックしておく
 * Bluetoothを有効にするように要求した時は#onActivityResultメソッドで結果を受け取る
 * 有効にできればRESULT_OK, ユーザーがキャンセルするなどして有効に出来なければRESULT_CANCELEDが返る
 * @param fragment
 * @param requestCode
 * @return true Bluetoothに対応していて既に有効になっている
 * @throws SecurityException パーミッションがなければSecurityExceptionが投げられる
 */
public static boolean requestBluetoothEnable(@NonNull final Fragment fragment, final int requestCode) throws SecurityException {
	final BluetoothAdapter adapter = BluetoothAdapter.getDefaultAdapter();
	if ((adapter != null) && !adapter.isEnabled()) {
		final Intent intent = new Intent(BluetoothAdapter.ACTION_REQUEST_ENABLE);
		fragment.startActivityForResult(intent, requestCode);
	}
	return adapter != null && adapter.isEnabled();
}

Source File: BluetoothManager.java From libcommon with Apache License 2.0

4 votes

/**
 * 端末がBluetoothに対応しているが無効になっていれば有効にするように要求する
 * 前もってbluetoothAvailableで対応しているかどうかをチェックしておく
 * Bluetoothを有効にするように要求した時は#onActivityResultメソッドで結果を受け取る
 * 有効にできればRESULT_OK, ユーザーがキャンセルするなどして有効に出来なければRESULT_CANCELEDが返る
 * @param activity
 * @param requestCode
 * @return true Bluetoothに対応していて既に有効になっている
 * @throws SecurityException パーミッションがなければSecurityExceptionが投げられる
 */
public static boolean requestBluetoothEnable(@NonNull final Activity activity, final int requestCode) throws SecurityException {
	final BluetoothAdapter adapter = BluetoothAdapter.getDefaultAdapter();
	if ((adapter != null) && !adapter.isEnabled()) {
		final Intent intent = new Intent(BluetoothAdapter.ACTION_REQUEST_ENABLE);
		activity.startActivityForResult(intent, requestCode);
	}
	return adapter != null && adapter.isEnabled();
}

Source File: Utils.java From mcumgr-android with Apache License 2.0

3 votes

/**
 * Checks whether Bluetooth is enabled.
 *
 * @return True if Bluetooth is enabled, false otherwise.
 */
public static boolean isBleEnabled() {
    final BluetoothAdapter adapter = BluetoothAdapter.getDefaultAdapter();
    return adapter != null && adapter.isEnabled();
}

Java Code Examples for android.bluetooth.BluetoothAdapter#isEnabled()