/* Copyright (C) 2019-2024 Arjan Schrijver, Damien Gaignon, Sophanimus
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This file is part of Gadgetbridge.
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Gadgetbridge is free software: you can redistribute it and/or modify
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it under the terms of the GNU Affero General Public License as published
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by the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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Gadgetbridge is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Affero General Public License for more details.
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You should have received a copy of the GNU Affero General Public License
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along with this program. If not, see <https://www.gnu.org/licenses/>. */
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/*
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Features:
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Working
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work in progress
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possible
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not supported
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Get firmware version (X) () (X) ()
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Get battery level (X) () (X) ()
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Set alarms (1-3) (X) () (X) ()
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Sync date and time (X) () (X) ()
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Find device (X) () (X) ()
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Switch 12/24 hour mode () () (X) ()
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Set step goal () () (X) ()
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Set sitting reminder () () (X) ()
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Trigger a photo () () (X) ()
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Switch automated heartbeat detection (X) () (X) ()
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Switch display illumination () () (X) ()
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Switch vibration () () (X) ()
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Switch notifications () () (X) ()
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Set do not distract time () () (X) ()
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Get Steps () () (X) ()
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Get Heart Rate () () (X) ()
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Get Blood Pressure () () (x) ()
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Get Blood Satiation () () (X) ()
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Send Notification () () (X) ()
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*/
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package nodomain.freeyourgadget.gadgetbridge.service.devices.jyou;
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import android.bluetooth.BluetoothGatt;
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import android.bluetooth.BluetoothGattCharacteristic;
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import android.widget.Toast;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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import java.io.IOException;
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import java.io.UnsupportedEncodingException;
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import java.nio.ByteBuffer;
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import java.util.ArrayList;
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import java.util.Calendar;
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import java.util.UUID;
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import nodomain.freeyourgadget.gadgetbridge.deviceevents.GBDeviceEventBatteryInfo;
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import nodomain.freeyourgadget.gadgetbridge.deviceevents.GBDeviceEventVersionInfo;
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import nodomain.freeyourgadget.gadgetbridge.devices.jyou.BFH16Constants;
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import nodomain.freeyourgadget.gadgetbridge.impl.GBDevice;
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import nodomain.freeyourgadget.gadgetbridge.model.Alarm;
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import nodomain.freeyourgadget.gadgetbridge.model.CallSpec;
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import nodomain.freeyourgadget.gadgetbridge.model.NotificationSpec;
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import nodomain.freeyourgadget.gadgetbridge.service.btle.AbstractBTLEDeviceSupport;
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import nodomain.freeyourgadget.gadgetbridge.service.btle.TransactionBuilder;
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import nodomain.freeyourgadget.gadgetbridge.util.AlarmUtils;
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import nodomain.freeyourgadget.gadgetbridge.util.GB;
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import nodomain.freeyourgadget.gadgetbridge.util.StringUtils;
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public class BFH16DeviceSupport extends AbstractBTLEDeviceSupport {
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private static final Logger LOG = LoggerFactory.getLogger(BFH16DeviceSupport.class);
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public BluetoothGattCharacteristic ctrlCharacteristic = null;
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public BluetoothGattCharacteristic measureCharacteristic = null;
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private final GBDeviceEventVersionInfo versionCmd = new GBDeviceEventVersionInfo();
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private final GBDeviceEventBatteryInfo batteryCmd = new GBDeviceEventBatteryInfo();
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public BFH16DeviceSupport() {
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super(LOG);
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addSupportedService(BFH16Constants.BFH16_SERVICE1);
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addSupportedService(BFH16Constants.BFH16_SERVICE2);
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}
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@Override
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public boolean useAutoConnect() {
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return true;
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}
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@Override
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protected TransactionBuilder initializeDevice(TransactionBuilder builder) {
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LOG.info("Initializing BFH16");
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gbDevice.setState(GBDevice.State.INITIALIZING);
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gbDevice.sendDeviceUpdateIntent(getContext());
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measureCharacteristic = getCharacteristic(BFH16Constants.BFH16_SERVICE1_NOTIFY);
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ctrlCharacteristic = getCharacteristic(BFH16Constants.BFH16_SERVICE1_WRITE);
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builder.setCallback(this);
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builder.notify(measureCharacteristic, true);
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syncSettings(builder);
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gbDevice.setState(GBDevice.State.INITIALIZED);
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gbDevice.sendDeviceUpdateIntent(getContext());
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LOG.info("Initialization BFH16 Done");
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return builder;
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}
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//onXYZ
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//______________________________________________________________________________________________
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//TODO check TODOs in method
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@Override
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public boolean onCharacteristicChanged(BluetoothGatt gatt,
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BluetoothGattCharacteristic characteristic) {
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if (super.onCharacteristicChanged(gatt, characteristic)) {
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return true;
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}
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UUID characteristicUUID = characteristic.getUuid();
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byte[] data = characteristic.getValue();
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if (data.length == 0)
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return true;
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switch (data[0]) {
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case BFH16Constants.RECEIVE_DEVICE_INFO:
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int fwVerNum = data[4] & 0xFF;
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versionCmd.fwVersion = (fwVerNum / 100) + "." + ((fwVerNum % 100) / 10) + "." + ((fwVerNum % 100) % 10);
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handleGBDeviceEvent(versionCmd);
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LOG.info("Firmware version is: " + versionCmd.fwVersion);
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return true;
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case BFH16Constants.RECEIVE_BATTERY_LEVEL:
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batteryCmd.level = data[8];
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handleGBDeviceEvent(batteryCmd);
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LOG.info("Battery level is: " + batteryCmd.level);
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return true;
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case BFH16Constants.RECEIVE_STEPS_DATA:
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int steps = ByteBuffer.wrap(data, 5, 4).getInt();
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//TODO handle step data
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LOG.info("Number of walked steps: " + steps);
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return true;
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case BFH16Constants.RECEIVE_HEART_DATA:
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//TODO handle heart data
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LOG.info("Current heart rate: " + data[1]);
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LOG.info("Current blood pressure: " + data[2] + "/" + data[3]);
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LOG.info("Current satiation: " + data[4]);
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return true;
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case BFH16Constants.RECEIVE_PHOTO_TRIGGER:
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//TODO handle photo trigger
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LOG.info("Received photo trigger: " + data[8]);
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return true;
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default:
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LOG.info("Unhandled characteristic change: " + characteristicUUID + " code: " + String.format("0x%1x ...", data[0]));
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LOG.info("Unhandled characteristic data: "+ data[0]+" "+data[1]+" "+data[2]+" "+data[3]+" "+data[4]+" "+data[5]+" "+data[6]+" "+data[7]+" "+data[8]);
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return true;
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}
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}
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//working
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@Override
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public void onSetAlarms(ArrayList<? extends Alarm> alarms) {
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try {
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TransactionBuilder builder = performInitialized("SetAlarms");
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for (int i = 0; i < alarms.size(); i++)
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{
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byte cmd;
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switch (i) {
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case 0:
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cmd = BFH16Constants.CMD_SET_ALARM_1;
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break;
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case 1:
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cmd = BFH16Constants.CMD_SET_ALARM_2;
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break;
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case 2:
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cmd = BFH16Constants.CMD_SET_ALARM_3;
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break;
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default:
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return;
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}
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Calendar cal = AlarmUtils.toCalendar(alarms.get(i));
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builder.write(ctrlCharacteristic, commandWithChecksum(
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cmd,
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alarms.get(i).getEnabled() ? cal.get(Calendar.HOUR_OF_DAY) : -1,
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alarms.get(i).getEnabled() ? cal.get(Calendar.MINUTE) : -1
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));
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}
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builder.queue(getQueue());
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GB.toast(getContext(), "Alarm settings applied - do note that the current device does not support day specification", Toast.LENGTH_LONG, GB.INFO);
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} catch(IOException e) {
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LOG.warn(e.getMessage());
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}
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}
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//working
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@Override
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public void onSetTime() {
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try {
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TransactionBuilder builder = performInitialized("SetTime");
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syncDateAndTime(builder);
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builder.queue(getQueue());
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} catch(IOException e) {
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LOG.warn(e.getMessage());
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}
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}
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//working
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@Override
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public void onFindDevice(boolean start) {
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try {
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TransactionBuilder builder = performInitialized("FindDevice");
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builder.write(ctrlCharacteristic, commandWithChecksum(
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BFH16Constants.CMD_VIBRATE, 0, start ? 1 : 0
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));
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builder.queue(getQueue());
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} catch(Exception e) {
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LOG.warn(e.getMessage());
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}
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GB.toast(getContext(), "Your device will vibrate 3 times!", Toast.LENGTH_LONG, GB.INFO);
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}
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//TODO: checked + rework
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@Override
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public void onNotification(NotificationSpec notificationSpec) {
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String notificationTitle = StringUtils.getFirstOf(notificationSpec.sender, notificationSpec.title);
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byte icon;
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switch (notificationSpec.type) {
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case GENERIC_SMS:
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icon = BFH16Constants.ICON_SMS;
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break;
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case FACEBOOK:
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case FACEBOOK_MESSENGER:
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icon = BFH16Constants.ICON_FACEBOOK;
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break;
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case TWITTER:
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icon = BFH16Constants.ICON_TWITTER;
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break;
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case WHATSAPP:
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icon = BFH16Constants.ICON_WHATSAPP;
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break;
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default:
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icon = BFH16Constants.ICON_LINE;
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break;
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}
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showNotification(icon, notificationTitle, notificationSpec.body);
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}
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//TODO: check
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@Override
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public void onSetCallState(CallSpec callSpec) {
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switch (callSpec.command) {
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case CallSpec.CALL_INCOMING:
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showNotification(BFH16Constants.ICON_CALL, callSpec.name, callSpec.number);
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break;
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}
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}
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//TODO: check
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@Override
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public void onEnableRealtimeSteps(boolean enable) {
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onEnableRealtimeHeartRateMeasurement(enable);
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}
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//TODO: check
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@Override
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public void onReset(int flags) {
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try {
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TransactionBuilder builder = performInitialized("Reboot");
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builder.write(ctrlCharacteristic, commandWithChecksum(
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BFH16Constants.CMD_ACTION_REBOOT_DEVICE, 0, 0
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));
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builder.queue(getQueue());
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} catch(Exception e) {
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LOG.warn(e.getMessage());
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}
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}
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//TODO: check
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@Override
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public void onHeartRateTest() {
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try {
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TransactionBuilder builder = performInitialized("HeartRateTest");
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builder.write(ctrlCharacteristic, commandWithChecksum(
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BFH16Constants.CMD_MEASURE_HEART, 0, 1
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));
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builder.queue(getQueue());
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} catch(Exception e) {
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LOG.warn(e.getMessage());
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}
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}
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//TODO: check
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@Override
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public void onEnableRealtimeHeartRateMeasurement(boolean enable) {
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// TODO: test
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try {
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TransactionBuilder builder = performInitialized("RealTimeHeartMeasurement");
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builder.write(ctrlCharacteristic, commandWithChecksum(
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BFH16Constants.CMD_MEASURE_HEART, 0, enable ? 1 : 0
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));
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builder.queue(getQueue());
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} catch(Exception e) {
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LOG.warn(e.getMessage());
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}
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}
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//TODO: check
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@Override
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public void onSetConstantVibration(int integer) {
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try {
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TransactionBuilder builder = performInitialized("Vibrate");
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builder.write(ctrlCharacteristic, commandWithChecksum(
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BFH16Constants.CMD_VIBRATE, 0, 1
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));
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builder.queue(getQueue());
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} catch(Exception e) {
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LOG.warn(e.getMessage());
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}
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}
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@Override
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public void onTestNewFunction() {
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showNotification((byte)0xFF, "", "");
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// try {
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// TransactionBuilder builder = performInitialized("TestNewFunction");
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//
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// //Test new command
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// builder.write(ctrlCharacteristic, commandWithChecksum( (byte)0x32, 0, 0));
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// builder.queue(getQueue());
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//
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// GB.toast(getContext(), "TestNewFunction executed!", Toast.LENGTH_LONG, GB.INFO);
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//
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// } catch(IOException e) {
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// LOG.warn(e.getMessage());
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// }
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}
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//FUNCTIONS
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//______________________________________________________________________________________________
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//TODO: check
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private void showNotification(byte icon, String title, String message) {
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try {
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TransactionBuilder builder = performInitialized("ShowNotification");
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byte[] titleBytes = stringToUTF8Bytes(title, 16);
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byte[] messageBytes = stringToUTF8Bytes(message, 80);
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for (int i = 1; i <= 7; i++)
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{
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byte[] currentPacket = new byte[20];
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currentPacket[0] = BFH16Constants.CMD_ACTION_SHOW_NOTIFICATION;
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currentPacket[1] = 7;
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currentPacket[2] = (byte)i;
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switch(i) {
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case 1:
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currentPacket[4] = icon;
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break;
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case 2:
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if (titleBytes != null) {
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System.arraycopy(titleBytes, 0, currentPacket, 3, 6);
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System.arraycopy(titleBytes, 6, currentPacket, 10, 10);
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}
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break;
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default:
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if (messageBytes != null) {
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System.arraycopy(messageBytes, 16 * (i - 3), currentPacket, 3, 6);
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System.arraycopy(messageBytes, 6 + 16 * (i - 3), currentPacket, 10, 10);
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}
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break;
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}
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builder.write(ctrlCharacteristic, currentPacket);
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}
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builder.queue(getQueue());
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} catch (IOException e) {
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LOG.warn(e.getMessage());
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}
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}
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//TODO: check
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private void syncSettings(TransactionBuilder builder) {
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syncDateAndTime(builder);
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// TODO: unhardcode and separate stuff
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builder.write(ctrlCharacteristic, commandWithChecksum(
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BFH16Constants.CMD_SET_HEARTRATE_WARNING_VALUE, 0, 152
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));
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builder.write(ctrlCharacteristic, commandWithChecksum(
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BFH16Constants.CMD_SET_TARGET_STEPS, 0, 10000
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));
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builder.write(ctrlCharacteristic, commandWithChecksum(
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BFH16Constants.CMD_SWITCH_METRIC_IMPERIAL, 0, 0
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));
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builder.write(ctrlCharacteristic, commandWithChecksum(
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BFH16Constants.CMD_GET_SLEEP_TIME, 0, 0
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));
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builder.write(ctrlCharacteristic, commandWithChecksum(
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BFH16Constants.CMD_SET_NOON_TIME, 12 * 60 * 60, 14 * 60 * 60 // 12:00 - 14:00
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));
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builder.write(ctrlCharacteristic, commandWithChecksum(
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BFH16Constants.CMD_SET_SLEEP_TIME, 21 * 60 * 60, 8 * 60 * 60 // 21:00 - 08:00
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));
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builder.write(ctrlCharacteristic, commandWithChecksum(
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BFH16Constants.CMD_SET_INACTIVITY_WARNING_TIME, 0, 0
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));
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// do not disturb and a couple more features
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byte dndStartHour = 22;
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byte dndStartMin = 0;
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byte dndEndHour = 8;
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byte dndEndMin = 0;
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boolean dndToggle = false;
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boolean vibrationToggle = true;
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boolean wakeOnRaiseToggle = true;
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builder.write(ctrlCharacteristic, commandWithChecksum(
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BFH16Constants.CMD_SET_DND_SETTINGS,
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(dndStartHour << 24) | (dndStartMin << 16) | (dndEndHour << 8) | dndEndMin,
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((dndToggle ? 0 : 1) << 2) | ((vibrationToggle ? 1 : 0) << 1) | (wakeOnRaiseToggle ? 1 : 0)
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));
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}
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//working
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private void syncDateAndTime(TransactionBuilder builder) {
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Calendar cal = Calendar.getInstance();
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String strYear = String.valueOf(cal.get(Calendar.YEAR));
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byte year1 = (byte)Integer.parseInt(strYear.substring(0, 2));
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byte year2 = (byte)Integer.parseInt(strYear.substring(2, 4));
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byte month = (byte)cal.get(Calendar.MONTH);
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byte day = (byte)cal.get(Calendar.DAY_OF_MONTH);
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byte hour = (byte)cal.get(Calendar.HOUR_OF_DAY);
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byte minute = (byte)cal.get(Calendar.MINUTE);
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byte second = (byte)cal.get(Calendar.SECOND);
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byte weekDay = (byte)cal.get(Calendar.DAY_OF_WEEK);
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builder.write(ctrlCharacteristic, commandWithChecksum(
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BFH16Constants.CMD_SET_DATE_AND_TIME,
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(year1 << 24) | (year2 << 16) | (month << 8) | day,
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(hour << 24) | (minute << 16) | (second << 8) | weekDay
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));
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}
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//working
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private byte[] commandWithChecksum(byte cmd, int argSlot1, int argSlot2)
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{
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ByteBuffer buf = ByteBuffer.allocate(10);
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buf.put(cmd);
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buf.putInt(argSlot1);
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buf.putInt(argSlot2);
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byte[] bytesToWrite = buf.array();
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byte checksum = 0;
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for (byte b : bytesToWrite) {
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checksum += b;
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}
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bytesToWrite[9] = checksum;
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return bytesToWrite;
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}
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/**
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* Checksum is calculated by the sum of bytes 0 to 8 and send as byte 9
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*/
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private byte[] commandWithChecksum(byte s0, byte s1, byte s2, byte s3, byte s4, byte s5, byte s6, byte s7, byte s8)
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{
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ByteBuffer buf = ByteBuffer.allocate(10);
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buf.put(s0);
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buf.put(s1);
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buf.put(s2);
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buf.put(s3);
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buf.put(s4);
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buf.put(s5);
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buf.put(s6);
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buf.put(s7);
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buf.put(s8);
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byte[] bytesToWrite = buf.array();
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byte checksum = 0;
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for (byte b : bytesToWrite) {
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checksum += b;
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}
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//checksum = (byte) ((byte) checksum & (byte) 0xFF); //TODO EXPERIMENTAL
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LOG.debug("Checksum = " + checksum);
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bytesToWrite[9] = checksum;
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return bytesToWrite;
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}
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private byte[] stringToUTF8Bytes(String src, int byteCount) {
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try {
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if (src == null)
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return null;
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for (int i = src.length(); i > 0; i--) {
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String sub = src.substring(0, i);
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byte[] subUTF8 = sub.getBytes("UTF-8");
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if (subUTF8.length == byteCount) {
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return subUTF8;
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}
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if (subUTF8.length < byteCount) {
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byte[] largerSubUTF8 = new byte[byteCount];
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System.arraycopy(subUTF8, 0, largerSubUTF8, 0, subUTF8.length);
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return largerSubUTF8;
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}
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}
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} catch (UnsupportedEncodingException e) {
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LOG.warn(e.getMessage());
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}
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return null;
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}
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@Override
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public boolean getImplicitCallbackModify() {
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return true;
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}
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@Override
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public boolean getSendWriteRequestResponse() {
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return false;
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}
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}
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