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.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.os.Bundle; import android.support.v4.app.Fragment; import android.view.LayoutInflater; import android.view.Menu; import android.view.MenuInflater; import android.view.MenuItem; import android.view.View; import android.view.View.OnClickListener; import android.view.ViewGroup; import android.widget.Button; 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 java.util.List; /** * Fragment to display the blood pressure service */ public class BloodPressureService extends Fragment { // Service and characteristics private static BluetoothGattService mService; private static BluetoothGattCharacteristic mIndicateCharacteristic; // Data fields private TextView mSystolicPressure; private TextView mDiastolicPressure; private TextView mSystolicPressureUnit; private TextView mDiastolicPressureUnit; private ProgressDialog mProgressDialog; 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 for SYSTOLIC pressure if (extras.containsKey(Constants.EXTRA_PRESURE_SYSTOLIC_VALUE)) { String receivedSystolicPressure = extras.getString(Constants.EXTRA_PRESURE_SYSTOLIC_VALUE); displaySYSData(receivedSystolicPressure); } // Check for DIASTOLIC pressure if (extras.containsKey(Constants.EXTRA_PRESURE_DIASTOLIC_VALUE)) { String receivedDiastolicPressure = extras.getString(Constants.EXTRA_PRESURE_DIASTOLIC_VALUE); displayDIAData(receivedDiastolicPressure); } // Check for SYSTOLIC pressure unit if (extras.containsKey(Constants.EXTRA_PRESURE_SYSTOLIC_UNIT_VALUE)) { String receivedSystolicPressure = extras.getString(Constants.EXTRA_PRESURE_SYSTOLIC_UNIT_VALUE); displaySYSUnitData(receivedSystolicPressure); } // Check for DIASTOLIC pressure unit if (extras.containsKey(Constants.EXTRA_PRESURE_DIASTOLIC_UNIT_VALUE)) { String receivedDiastolicPressure = extras .getString(Constants.EXTRA_PRESURE_DIASTOLIC_UNIT_VALUE); displayDIAUnitData(receivedDiastolicPressure); } } 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); } } } }; public BloodPressureService create(BluetoothGattService service) { BloodPressureService fragment = new BloodPressureService(); mService = service; return fragment; } @Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { View rootView = inflater.inflate(R.layout.blood_pressure_measurement, container, false); mProgressDialog = new ProgressDialog(getActivity()); mSystolicPressure = (TextView) rootView.findViewById(R.id.bp_sys_value); mDiastolicPressure = (TextView) rootView.findViewById(R.id.bp_dia_value); mSystolicPressureUnit = (TextView) rootView.findViewById(R.id.bp_sys_value_unit); mDiastolicPressureUnit = (TextView) rootView.findViewById(R.id.bp_dia_value_unit); Button startStopBtn = (Button) rootView.findViewById(R.id.start_stop_btn); // Start/Stop button listener startStopBtn.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { Button btn = (Button) v; String buttonText = btn.getText().toString(); String startText = getResources().getString(R.string.blood_pressure_start_btn); String stopText = getResources().getString(R.string.blood_pressure_stop_btn); if (buttonText.equalsIgnoreCase(startText)) { btn.setText(stopText); if (mIndicateCharacteristic != null) { prepareBroadcastDataIndicate(mIndicateCharacteristic); } getGattData(); } else { btn.setText(startText); stopBroadcastDataIndicate(mIndicateCharacteristic); } } }); setHasOptionsMenu(true); return rootView; } /** * Display DIASTOLIC data * * @param received_diastolic_pressure */ void displayDIAData(String received_diastolic_pressure) { mDiastolicPressure.setText(String.format("%.2f", Float.parseFloat(received_diastolic_pressure))); } /** * Display SYSTOLIC Data * * @param received_systolic_pressure */ void displaySYSData(String received_systolic_pressure) { mSystolicPressure.setText(String.format("%.2f", Float.parseFloat(received_systolic_pressure))); } /** * Display the DIASTOLIC unit * * @param received_diastolic_pressure */ void displayDIAUnitData(String received_diastolic_pressure) { mDiastolicPressureUnit.setText(received_diastolic_pressure); } /** * Display the SYSTOLIC unit * * @param received_systolic_pressure */ void displaySYSUnitData(String received_systolic_pressure) { mSystolicPressureUnit.setText(received_systolic_pressure); } @Override public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) { menu.clear(); inflater.inflate(R.menu.global, menu); 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(false); log.setVisible(true); super.onCreateOptionsMenu(menu, inflater); } @Override public void onResume() { super.onResume(); getActivity().registerReceiver(mGattUpdateReceiver, Utils.makeGattUpdateIntentFilter()); Utils.setUpActionBar(getActivity(), getResources().getString(R.string.blood_pressure)); } @Override public void onDestroy() { if (mIndicateCharacteristic != null) { stopBroadcastDataIndicate(mIndicateCharacteristic); } getActivity().unregisterReceiver(mGattUpdateReceiver); super.onDestroy(); } /** * 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.BLOOD_PRESSURE_MEASUREMENT)) { mIndicateCharacteristic = gattCharacteristic; prepareBroadcastDataIndicate(gattCharacteristic); break; } } } /** * Preparing Broadcast receiver to broadcast indicate characteristics * * @param gattCharacteristic */ void prepareBroadcastDataIndicate(BluetoothGattCharacteristic gattCharacteristic) { final int charaProp = gattCharacteristic.getProperties(); if ((charaProp | BluetoothGattCharacteristic.PROPERTY_INDICATE) > 0) { if (mIndicateCharacteristic != null) { mIndicateCharacteristic = gattCharacteristic; BluetoothLeService.setCharacteristicIndication(mIndicateCharacteristic, true); } } } /** * Stopping Broadcast receiver to broadcast indicate characteristics * * @param gattCharacteristic */ void stopBroadcastDataIndicate(BluetoothGattCharacteristic gattCharacteristic) { final int charaProp = gattCharacteristic.getProperties(); if ((charaProp | BluetoothGattCharacteristic.PROPERTY_INDICATE) > 0) { if (mIndicateCharacteristic != null) { Logger.d("Stopped notification"); BluetoothLeService.setCharacteristicIndication(mIndicateCharacteristic, false); mIndicateCharacteristic = null; } } } }