Does Android API 20 allows devices that support Bluetooth LE to act as a peripheral device?

Question

I am using the below code to set the Android device act as peripheral, but it does not seem like working. Do you know if peripheral mode is supported with API 20?

BluetoothGattServer mGattServer;
public void startPeripheralGattServer() {
        final BluetoothManager bluetoothManager =
                (BluetoothManager) this.getSystemService(Context.BLUETOOTH_SERVICE);

        mGattServer = bluetoothManager.openGattServer(getApplicationContext(), new BluetoothGattServerCallback() {

                @Override
                public void onCharacteristicReadRequest(BluetoothDevice device, int requestId,
                    int offset, BluetoothGattCharacteristic characteristic) {

                    if (mGattServer != null) {
                        mGattServer.sendResponse(device, requestId, BluetoothGatt.GATT_SUCCESS, offset, new byte[] { '1' });
                    }
                }
            });

        UUID serviceUUID = UUID.randomUUID();
        UUID characteristicUUID = UUID.randomUUID();
        UUID descriptorUUID = UUID.randomUUID();

        BluetoothGattCharacteristic characteristic = new BluetoothGattCharacteristic(characteristicUUID, BluetoothGattCharacteristic.PROPERTY_READ, BluetoothGattCharacteristic.PERMISSION_READ);
        characteristic.setValue(77, BluetoothGattCharacteristic.FORMAT_UINT8, 0);

        BluetoothGattDescriptor descriptor = new BluetoothGattDescriptor(descriptorUUID,    
                BluetoothGattDescriptor.PERMISSION_READ);

        characteristic.addDescriptor(descriptor);

        BluetoothGattService service = new BluetoothGattService(serviceUUID, 
                BluetoothGattService.SERVICE_TYPE_PRIMARY);
        service.addCharacteristic(characteristic);

        mGattServer.addService(service);
    }

Check out this related question: http://stackoverflow.com/questions/19717902/does-android-kitkat-allows-devices-that-support-bluetooth-le-to-act-as-a-periphe?rq=1 — Josh, Jul 01 '14 at 23:05

KikiTheMonk · Answer 1 · 2014-07-16T07:49:33.570

3

Based on this Google I/O video for Bluetooth Low Energy, peripheral mode will become available from Android API 20 (Android L) and above.

edited Jul 16 '14 at 07:49

answered Jul 15 '14 at 05:14

KikiTheMonk

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score 2 · Answer 2 · answered Dec 31 '14 at 09:09

The peripheral mode is supported with API 20. However, to transmit as a peripheral mode, Android 5.0+ and firmware supporting Bluetooth Low Energy Peripheral Mode are required. As of December 2014, only Nexus 6 and Nexus 9 devices are known to have firmware that supports Bluetooth Low Energy Peripheral Mode.

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score 0 · Answer 3 · answered Dec 15 '14 at 21:08

0

They will be available from API Level 21

BLE Peripheral APIs avaliable from API Level 21

answered Dec 15 '14 at 21:08

ARK

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Does Android API 20 allows devices that support Bluetooth LE to act as a peripheral device?

3 Answers3