Java tutorial
//package com.java2s; /* * Copyright 2014 Google Inc. All rights reserved. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ import android.bluetooth.BluetoothGatt; import android.bluetooth.BluetoothGattCharacteristic; import android.bluetooth.BluetoothGattService; import java.util.UUID; public class Main { private static BluetoothGatt mBluetoothGatt; private static BluetoothGattService mBeaconBluetoothGattService = null; private static final UUID UUID_BEACON_DATA_PART_2 = UUID.fromString("b35d7da8-eed4-4d59-8f89-f6573edea967"); /** * Write the given data to the beacon's advertising packet. * This only writes part 2 which is up to 8 bytes * of the packet data and is appended to the data from part 1. * * @param data */ private static void writeCharacteristic_beaconDataPart2(byte[] data) { // Get the characteristic for part 2 of the beacon data BluetoothGattCharacteristic characteristic_beaconDataPart2 = mBeaconBluetoothGattService .getCharacteristic(UUID_BEACON_DATA_PART_2); // Write the given byte array data to that characteristic characteristic_beaconDataPart2.setValue(data); // Write the updated characteristic via GATT mBluetoothGatt.writeCharacteristic(characteristic_beaconDataPart2); } }