Java tutorial
/* * Copyright Cypress Semiconductor Corporation, 2014-2015 All rights reserved. * * This software, associated documentation and materials ("Software") is * owned by Cypress Semiconductor Corporation ("Cypress") and is * protected by and subject to worldwide patent protection (UnitedStates and foreign), United States copyright laws and international * treaty provisions. Therefore, unless otherwise specified in a separate license agreement between you and Cypress, this Software * must be treated like any other copyrighted material. Reproduction, * modification, translation, compilation, or representation of this * Software in any other form (e.g., paper, magnetic, optical, silicon) * is prohibited without Cypress's express written permission. * * Disclaimer: THIS SOFTWARE IS PROVIDED AS-IS, WITH NO WARRANTY OF ANY * KIND, EXPRESS OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, * NONINFRINGEMENT, IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS * FOR A PARTICULAR PURPOSE. Cypress reserves the right to make changes * to the Software without notice. Cypress does not assume any liability * arising out of the application or use of Software or any product or * circuit described in the Software. Cypress does not authorize its * products for use as critical components in any products where a * malfunction or failure may reasonably be expected to result in * significant injury or death ("High Risk Product"). By including * Cypress's product in a High Risk Product, the manufacturer of such * system or application assumes all risk of such use and in doing so * indemnifies Cypress against all liability. * * Use of this Software may be limited by and subject to the applicable * Cypress software license agreement. * * */ package com.cypress.cysmart.BLEServiceFragments; import android.app.ActionBar; import android.app.ProgressDialog; import android.bluetooth.BluetoothDevice; import android.bluetooth.BluetoothGattCharacteristic; import android.bluetooth.BluetoothGattService; import android.content.BroadcastReceiver; import android.content.Context; import android.content.Intent; import android.graphics.Color; import android.graphics.drawable.ColorDrawable; import android.os.Bundle; import android.support.v4.app.Fragment; import android.util.DisplayMetrics; import android.view.LayoutInflater; import android.view.Menu; import android.view.MenuInflater; import android.view.MenuItem; import android.view.View; import android.view.ViewGroup; import android.widget.LinearLayout; import android.widget.TextView; import com.cypress.cysmart.BLEConnectionServices.BluetoothLeService; import com.cypress.cysmart.CommonUtils.Constants; import com.cypress.cysmart.CommonUtils.GattAttributes; import com.cypress.cysmart.CommonUtils.Logger; import com.cypress.cysmart.CommonUtils.Utils; import com.cypress.cysmart.R; import org.achartengine.ChartFactory; import org.achartengine.GraphicalView; import org.achartengine.chart.PointStyle; import org.achartengine.model.XYMultipleSeriesDataset; import org.achartengine.model.XYSeries; import org.achartengine.renderer.XYMultipleSeriesRenderer; import org.achartengine.renderer.XYSeriesRenderer; import java.util.ArrayList; import java.util.List; /** * Fragment to display the heart rate service */ public class HealthTemperatureService extends Fragment { // GATT service and characteristics private static BluetoothGattService mservice; private static BluetoothGattCharacteristic mNotifyCharacteristic; private static BluetoothGattCharacteristic mReadCharacteristic; //ProgressDialog private ProgressDialog mProgressDialog; /** * BroadcastReceiver for receiving the GATT server status */ private BroadcastReceiver mGattUpdateReceiver = new BroadcastReceiver() { @Override public void onReceive(Context context, Intent intent) { final String action = intent.getAction(); Bundle extras = intent.getExtras(); // GATT data available if (BluetoothLeService.ACTION_DATA_AVAILABLE.equals(action)) { // Check Health temperature if (extras.containsKey(Constants.EXTRA_HTM_VALUE)) { ArrayList<String> received_htm_data = intent.getStringArrayListExtra(Constants.EXTRA_HTM_VALUE); displayLiveData(received_htm_data); } // Check health sensor location else { String received_hsl_data = intent.getStringExtra(Constants.EXTRA_HSL_VALUE); prepareBroadcastDataIndicate(mNotifyCharacteristic); displayBSLData(received_hsl_data); } } if (action.equals(BluetoothDevice.ACTION_BOND_STATE_CHANGED)) { final int state = intent.getIntExtra(BluetoothDevice.EXTRA_BOND_STATE, BluetoothDevice.ERROR); if (state == BluetoothDevice.BOND_BONDING) { // Bonding... Logger.i("Bonding is in process...."); Utils.bondingProgressDialog(getActivity(), mProgressDialog, true); } else if (state == BluetoothDevice.BOND_BONDED) { String dataLog = getResources().getString(R.string.dl_commaseparator) + "[" + BluetoothLeService.getmBluetoothDeviceName() + "|" + BluetoothLeService.getmBluetoothDeviceAddress() + "]" + getResources().getString(R.string.dl_commaseparator) + getResources().getString(R.string.dl_connection_paired); Logger.datalog(dataLog); Utils.bondingProgressDialog(getActivity(), mProgressDialog, false); getGattData(); } else if (state == BluetoothDevice.BOND_NONE) { String dataLog = getResources().getString(R.string.dl_commaseparator) + "[" + BluetoothLeService.getmBluetoothDeviceName() + "|" + BluetoothLeService.getmBluetoothDeviceAddress() + "]" + getResources().getString(R.string.dl_commaseparator) + getResources().getString(R.string.dl_connection_unpaired); Logger.datalog(dataLog); Utils.bondingProgressDialog(getActivity(), mProgressDialog, false); } } } }; // Data view variables private TextView mDataField_HTM; private TextView mDataField_HSL; private TextView mDataField_ThermoUnit; private boolean HANDLER_FLAG = true; /** * aChart variables */ private LinearLayout mGraphLayoutParent; private double mGraphLastXValue = 0; private double mPreviosTime = 0; private double mCurrentTime = 0; private GraphicalView mChart; private XYSeries mTempEratureDataSeries; // Creating a XYMultipleSeriesRenderer to customize the whole chart XYMultipleSeriesRenderer mMultiRenderer; public HealthTemperatureService create(BluetoothGattService service) { HealthTemperatureService fragment = new HealthTemperatureService(); mservice = service; return fragment; } @Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { View rootView = inflater.inflate(R.layout.health_temp_measurement, container, false); mDataField_HTM = (TextView) rootView.findViewById(R.id.temp_measure); mDataField_HSL = (TextView) rootView.findViewById(R.id.hsl_sensor_data); mDataField_ThermoUnit = (TextView) rootView.findViewById(R.id.temp_unit); mProgressDialog = new ProgressDialog(getActivity()); mDataField_HSL.setSelected(true); setHasOptionsMenu(true); // Setting up chart mMultiRenderer = new XYMultipleSeriesRenderer(); setupChart(rootView); return rootView; } private void displayLiveData(final ArrayList<String> htm_data) { if (htm_data != null) { try { mDataField_HTM.setText(htm_data.get(0)); mDataField_ThermoUnit.setText(htm_data.get(1)); } catch (Exception e) { e.printStackTrace(); } if (mCurrentTime == 0) { mGraphLastXValue = 0; mCurrentTime = Utils.getTimeInSeconds(); } else { mPreviosTime = mCurrentTime; mCurrentTime = Utils.getTimeInSeconds(); mGraphLastXValue = mGraphLastXValue + (mCurrentTime - mPreviosTime) / 1000; } try { double val = Double.valueOf(htm_data.get(0)); String unit = htm_data.get(1); if (unit.equalsIgnoreCase("F")) { val = convertFahrenheitToCelcius((float) val); Logger.i("convertFahrenheitToCelcius--->" + val); } mTempEratureDataSeries.add(mGraphLastXValue, val); mChart.repaint(); } catch (Exception e) { e.printStackTrace(); } } } private void displayBSLData(String htm_sensor_data) { if (htm_sensor_data != null) { mDataField_HSL.setText(htm_sensor_data); } } // Converts to celcius private float convertFahrenheitToCelcius(float fahrenheit) { return ((fahrenheit - 32) * 5 / 9); } @Override public void onResume() { super.onResume(); HANDLER_FLAG = true; getGattData(); getActivity().registerReceiver(mGattUpdateReceiver, Utils.makeGattUpdateIntentFilter()); Utils.setUpActionBar(getActivity(), getResources().getString(R.string.health_thermometer_fragment)); } @Override public void onDestroy() { HANDLER_FLAG = false; getActivity().unregisterReceiver(mGattUpdateReceiver); stopBroadcastDataIndiacte(mNotifyCharacteristic); super.onDestroy(); } /** * Stopping Broadcast receiver to broadcast notify characteristics * * @param gattCharacteristic */ void stopBroadcastDataIndiacte(BluetoothGattCharacteristic gattCharacteristic) { final int charaProp = gattCharacteristic.getProperties(); if ((charaProp | BluetoothGattCharacteristic.PROPERTY_INDICATE) > 0) { if (mNotifyCharacteristic != null) { BluetoothLeService.setCharacteristicIndication(mNotifyCharacteristic, false); mNotifyCharacteristic = null; } } } /** * Preparing Broadcast receiver to broadcast notify characteristics * * @param gattCharacteristic */ void prepareBroadcastDataIndicate(BluetoothGattCharacteristic gattCharacteristic) { final int charaProp = gattCharacteristic.getProperties(); if ((charaProp | BluetoothGattCharacteristic.PROPERTY_INDICATE) > 0) { mNotifyCharacteristic = gattCharacteristic; BluetoothLeService.setCharacteristicIndication(gattCharacteristic, true); } } /** * Preparing Broadcast receiver to broadcast read characteristics * * @param gattCharacteristic */ void prepareBroadcastDataRead(BluetoothGattCharacteristic gattCharacteristic) { final int charaProp = gattCharacteristic.getProperties(); if ((charaProp | BluetoothGattCharacteristic.PROPERTY_READ) > 0) { mReadCharacteristic = gattCharacteristic; BluetoothLeService.readCharacteristic(gattCharacteristic); } } /** * Method to get required characteristics from service */ void getGattData() { List<BluetoothGattCharacteristic> gattCharacteristics = mservice.getCharacteristics(); for (BluetoothGattCharacteristic gattCharacteristic : gattCharacteristics) { String uuidchara = gattCharacteristic.getUuid().toString(); if (uuidchara.equalsIgnoreCase(GattAttributes.TEMPERATURE_TYPE)) { mReadCharacteristic = gattCharacteristic; prepareBroadcastDataRead(mReadCharacteristic); } if (uuidchara.equalsIgnoreCase(GattAttributes.HEALTH_TEMP_MEASUREMENT)) { mNotifyCharacteristic = gattCharacteristic; // prepareBroadcastDataIndicate(mNotifyCharacteristic); } } } @Override public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) { menu.clear(); inflater.inflate(R.menu.global, menu); ActionBar actionBar = getActivity().getActionBar(); if (actionBar != null) { actionBar.setIcon(new ColorDrawable(getResources().getColor(android.R.color.transparent))); } MenuItem graph = menu.findItem(R.id.graph); MenuItem log = menu.findItem(R.id.log); MenuItem search = menu.findItem(R.id.search); search.setVisible(false); graph.setVisible(true); log.setVisible(true); super.onCreateOptionsMenu(menu, inflater); } @Override public boolean onOptionsItemSelected(MenuItem item) { // Handle action bar item clicks here. switch (item.getItemId()) { case R.id.graph: if (mGraphLayoutParent.getVisibility() != View.VISIBLE) { mGraphLayoutParent.setVisibility(View.VISIBLE); } else { mGraphLayoutParent.setVisibility(View.GONE); } return true; default: return super.onOptionsItemSelected(item); } } /** * Setting up the aChart Third party library * @param parent */ private void setupChart(View parent) { /** * Setting graph titles */ String graphTitle = getResources().getString(R.string.health_temperature_graph); String graphXAxis = getResources().getString(R.string.health_temperature_time); String graphYAxis = getResources().getString(R.string.health_temperature_temperature); // Creating an XYSeries for temperature mTempEratureDataSeries = new XYSeries(graphTitle); // Creating a dataset to hold each series XYMultipleSeriesDataset mDataset = new XYMultipleSeriesDataset(); // Adding temperature Series to the dataset mDataset.addSeries(mTempEratureDataSeries); // Creating XYSeriesRenderer to customize XYSeriesRenderer mRenderer = new XYSeriesRenderer(); mRenderer.setColor(getResources().getColor(R.color.main_bg_color)); mRenderer.setPointStyle(PointStyle.CIRCLE); mRenderer.setFillPoints(true); mRenderer.setLineWidth(5); int deviceDPi = getResources().getDisplayMetrics().densityDpi; switch (getResources().getDisplayMetrics().densityDpi) { case DisplayMetrics.DENSITY_XHIGH: mMultiRenderer.setMargins(new int[] { 40, 90, 25, 10 }); mMultiRenderer.setAxisTitleTextSize(Constants.TEXT_SIZE_XHDPI); mMultiRenderer.setChartTitleTextSize(Constants.TEXT_SIZE_XHDPI); mMultiRenderer.setLabelsTextSize(Constants.TEXT_SIZE_XHDPI); mMultiRenderer.setLegendTextSize(Constants.TEXT_SIZE_XHDPI); break; case DisplayMetrics.DENSITY_HIGH: mMultiRenderer.setMargins(new int[] { 30, 50, 25, 10 }); mMultiRenderer.setAxisTitleTextSize(Constants.TEXT_SIZE_HDPI); mMultiRenderer.setChartTitleTextSize(Constants.TEXT_SIZE_HDPI); mMultiRenderer.setLabelsTextSize(Constants.TEXT_SIZE_HDPI); mMultiRenderer.setLegendTextSize(Constants.TEXT_SIZE_HDPI); break; case DisplayMetrics.DENSITY_XXHIGH: mMultiRenderer.setMargins(new int[] { 50, 100, 35, 20 }); mMultiRenderer.setAxisTitleTextSize(Constants.TEXT_SIZE_XXHDPI); mMultiRenderer.setChartTitleTextSize(Constants.TEXT_SIZE_XXHDPI); mMultiRenderer.setLabelsTextSize(Constants.TEXT_SIZE_XXHDPI); mMultiRenderer.setLegendTextSize(Constants.TEXT_SIZE_XXHDPI); break; default: if (deviceDPi > DisplayMetrics.DENSITY_XXHIGH && deviceDPi < DisplayMetrics.DENSITY_XXXHIGH) { mMultiRenderer.setMargins(new int[] { 50, 100, 35, 20 }); mMultiRenderer.setAxisTitleTextSize(Constants.TEXT_SIZE_XXHDPI); mMultiRenderer.setChartTitleTextSize(Constants.TEXT_SIZE_XXHDPI); mMultiRenderer.setLabelsTextSize(Constants.TEXT_SIZE_XXHDPI); mMultiRenderer.setLegendTextSize(Constants.TEXT_SIZE_XXHDPI); } else { mMultiRenderer.setMargins(new int[] { 30, 50, 25, 10 }); mMultiRenderer.setAxisTitleTextSize(Constants.TEXT_SIZE_LDPI); mMultiRenderer.setChartTitleTextSize(Constants.TEXT_SIZE_LDPI); mMultiRenderer.setLabelsTextSize(Constants.TEXT_SIZE_LDPI); mMultiRenderer.setLegendTextSize(Constants.TEXT_SIZE_LDPI); } break; } mMultiRenderer.setXTitle(graphXAxis); mMultiRenderer.setLabelsColor(Color.BLACK); mMultiRenderer.setYTitle(graphYAxis); mMultiRenderer.setMarginsColor(Color.argb(0x00, 0xff, 0x00, 0x00)); mMultiRenderer.setPanEnabled(true, true); mMultiRenderer.setYLabelsColor(0, Color.BLACK); mMultiRenderer.setXLabelsColor(Color.BLACK); mMultiRenderer.setApplyBackgroundColor(true); mMultiRenderer.setBackgroundColor(Color.WHITE); mMultiRenderer.setGridColor(Color.BLACK); mMultiRenderer.setShowGrid(true); mMultiRenderer.setShowLegend(false); // Adding mRenderer to multipleRenderer mMultiRenderer.addSeriesRenderer(mRenderer); // Getting a reference to LinearLayout of the MainActivity Layout mGraphLayoutParent = (LinearLayout) parent.findViewById(R.id.chart_container); mChart = ChartFactory.getLineChartView(getActivity(), mDataset, mMultiRenderer); // Adding the Line Chart to the LinearLayout mGraphLayoutParent.addView(mChart); } }