Darien Figueroa / Mbed OS Final_Program

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Dependencies:   USBDevice

pain/svn/pristine/44/44c7079a3b2b9e7c041f60a3eedeede315d71db1.svn-base@0:832122ce6748, 2021-04-07 (annotated)

Committer:
darienf
Date:
Wed Apr 07 22:37:59 2021 +0000
Revision:
0:832122ce6748
painnie

Who changed what in which revision?

UserRevisionLine numberNew contents of line
darienf 0:832122ce6748 1 /*******************************************************************************
darienf 0:832122ce6748 2 * Copyright (C) 2016 Maxim Integrated Products, Inc., All Rights Reserved.
darienf 0:832122ce6748 3 * <p>
darienf 0:832122ce6748 4 * Permission is hereby granted, free of charge, to any person obtaining a
darienf 0:832122ce6748 5 * copy of this software and associated documentation files (the "Software"),
darienf 0:832122ce6748 6 * to deal in the Software without restriction, including without limitation
darienf 0:832122ce6748 7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
darienf 0:832122ce6748 8 * and/or sell copies of the Software, and to permit persons to whom the
darienf 0:832122ce6748 9 * Software is furnished to do so, subject to the following conditions:
darienf 0:832122ce6748 10 * <p>
darienf 0:832122ce6748 11 * The above copyright notice and this permission notice shall be included
darienf 0:832122ce6748 12 * in all copies or substantial portions of the Software.
darienf 0:832122ce6748 13 * <p>
darienf 0:832122ce6748 14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
darienf 0:832122ce6748 15 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
darienf 0:832122ce6748 16 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
darienf 0:832122ce6748 17 * IN NO EVENT SHALL MAXIM INTEGRATED BE LIABLE FOR ANY CLAIM, DAMAGES
darienf 0:832122ce6748 18 * OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
darienf 0:832122ce6748 19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
darienf 0:832122ce6748 20 * OTHER DEALINGS IN THE SOFTWARE.
darienf 0:832122ce6748 21 * <p>
darienf 0:832122ce6748 22 * Except as contained in this notice, the name of Maxim Integrated
darienf 0:832122ce6748 23 * Products, Inc. shall not be used except as stated in the Maxim Integrated
darienf 0:832122ce6748 24 * Products, Inc. Branding Policy.
darienf 0:832122ce6748 25 * <p>
darienf 0:832122ce6748 26 * The mere transfer of this software does not imply any licenses
darienf 0:832122ce6748 27 * of trade secrets, proprietary technology, copyrights, patents,
darienf 0:832122ce6748 28 * trademarks, maskwork rights, or any other form of intellectual
darienf 0:832122ce6748 29 * property whatsoever. Maxim Integrated Products, Inc. retains all
darienf 0:832122ce6748 30 * ownership rights.
darienf 0:832122ce6748 31 * ******************************************************************************
darienf 0:832122ce6748 32 */
darienf 0:832122ce6748 33 package com.example.android.bluetoothlegatt;
darienf 0:832122ce6748 34
darienf 0:832122ce6748 35 import android.app.Activity;
darienf 0:832122ce6748 36 import android.app.ListActivity;
darienf 0:832122ce6748 37 import android.bluetooth.BluetoothAdapter;
darienf 0:832122ce6748 38 import android.bluetooth.BluetoothDevice;
darienf 0:832122ce6748 39 import android.bluetooth.BluetoothManager;
darienf 0:832122ce6748 40 import android.content.Context;
darienf 0:832122ce6748 41 import android.content.Intent;
darienf 0:832122ce6748 42 import android.content.pm.PackageManager;
darienf 0:832122ce6748 43 import android.os.Bundle;
darienf 0:832122ce6748 44 import android.os.Handler;
darienf 0:832122ce6748 45 import android.view.LayoutInflater;
darienf 0:832122ce6748 46 import android.view.Menu;
darienf 0:832122ce6748 47 import android.view.MenuItem;
darienf 0:832122ce6748 48 import android.view.View;
darienf 0:832122ce6748 49 import android.view.ViewGroup;
darienf 0:832122ce6748 50 import android.widget.BaseAdapter;
darienf 0:832122ce6748 51 import android.widget.ListView;
darienf 0:832122ce6748 52 import android.widget.TextView;
darienf 0:832122ce6748 53 import android.widget.Toast;
darienf 0:832122ce6748 54
darienf 0:832122ce6748 55 import java.util.ArrayList;
darienf 0:832122ce6748 56
darienf 0:832122ce6748 57 /**
darienf 0:832122ce6748 58 * Activity for scanning and displaying available Bluetooth LE devices.
darienf 0:832122ce6748 59 */
darienf 0:832122ce6748 60 public class DeviceScanActivity extends ListActivity {
darienf 0:832122ce6748 61 public static final String EXTRA_DEVICE = "extra_device";
darienf 0:832122ce6748 62 private LeDeviceListAdapter mLeDeviceListAdapter;
darienf 0:832122ce6748 63 private BluetoothAdapter mBluetoothAdapter;
darienf 0:832122ce6748 64 private boolean mScanning;
darienf 0:832122ce6748 65 private Handler mHandler;
darienf 0:832122ce6748 66
darienf 0:832122ce6748 67 private static final int REQUEST_ENABLE_BT = 1;
darienf 0:832122ce6748 68 // Stops scanning after 10 seconds.
darienf 0:832122ce6748 69 private static final long SCAN_PERIOD = 10000;
darienf 0:832122ce6748 70
darienf 0:832122ce6748 71 @Override
darienf 0:832122ce6748 72 public void onCreate(Bundle savedInstanceState) {
darienf 0:832122ce6748 73 super.onCreate(savedInstanceState);
darienf 0:832122ce6748 74 getActionBar().setTitle("BLE Device Scan");
darienf 0:832122ce6748 75 mHandler = new Handler();
darienf 0:832122ce6748 76
darienf 0:832122ce6748 77 // Use this check to determine whether BLE is supported on the device. Then you can
darienf 0:832122ce6748 78 // selectively disable BLE-related features.
darienf 0:832122ce6748 79 if (!getPackageManager().hasSystemFeature(PackageManager.FEATURE_BLUETOOTH_LE)) {
darienf 0:832122ce6748 80 Toast.makeText(this, "BLE is not supported", Toast.LENGTH_SHORT).show();
darienf 0:832122ce6748 81 finish();
darienf 0:832122ce6748 82 }
darienf 0:832122ce6748 83
darienf 0:832122ce6748 84 // Initializes a Bluetooth adapter. For API level 18 and above, get a reference to
darienf 0:832122ce6748 85 // BluetoothAdapter through BluetoothManager.
darienf 0:832122ce6748 86 final BluetoothManager bluetoothManager =
darienf 0:832122ce6748 87 (BluetoothManager) getSystemService(Context.BLUETOOTH_SERVICE);
darienf 0:832122ce6748 88 mBluetoothAdapter = bluetoothManager.getAdapter();
darienf 0:832122ce6748 89
darienf 0:832122ce6748 90 // Checks if Bluetooth is supported on the device.
darienf 0:832122ce6748 91 if (mBluetoothAdapter == null) {
darienf 0:832122ce6748 92 Toast.makeText(this, "Bluetooth not supported.", Toast.LENGTH_SHORT).show();
darienf 0:832122ce6748 93 finish();
darienf 0:832122ce6748 94 return;
darienf 0:832122ce6748 95 }
darienf 0:832122ce6748 96 }
darienf 0:832122ce6748 97
darienf 0:832122ce6748 98 @Override
darienf 0:832122ce6748 99 public boolean onCreateOptionsMenu(Menu menu) {
darienf 0:832122ce6748 100 getMenuInflater().inflate(R.menu.main, menu);
darienf 0:832122ce6748 101 if (!mScanning) {
darienf 0:832122ce6748 102 menu.findItem(R.id.menu_stop).setVisible(false);
darienf 0:832122ce6748 103 menu.findItem(R.id.menu_scan).setVisible(true);
darienf 0:832122ce6748 104 menu.findItem(R.id.menu_refresh).setActionView(null);
darienf 0:832122ce6748 105 } else {
darienf 0:832122ce6748 106 menu.findItem(R.id.menu_stop).setVisible(true);
darienf 0:832122ce6748 107 menu.findItem(R.id.menu_scan).setVisible(false);
darienf 0:832122ce6748 108 menu.findItem(R.id.menu_refresh).setActionView(
darienf 0:832122ce6748 109 R.layout.actionbar_indeterminate_progress);
darienf 0:832122ce6748 110 }
darienf 0:832122ce6748 111 return true;
darienf 0:832122ce6748 112 }
darienf 0:832122ce6748 113
darienf 0:832122ce6748 114 @Override
darienf 0:832122ce6748 115 public boolean onOptionsItemSelected(MenuItem item) {
darienf 0:832122ce6748 116 switch (item.getItemId()) {
darienf 0:832122ce6748 117 case R.id.menu_scan:
darienf 0:832122ce6748 118 mLeDeviceListAdapter.clear();
darienf 0:832122ce6748 119 scanLeDevice(true);
darienf 0:832122ce6748 120 break;
darienf 0:832122ce6748 121 case R.id.menu_stop:
darienf 0:832122ce6748 122 scanLeDevice(false);
darienf 0:832122ce6748 123 break;
darienf 0:832122ce6748 124 }
darienf 0:832122ce6748 125 return true;
darienf 0:832122ce6748 126 }
darienf 0:832122ce6748 127
darienf 0:832122ce6748 128 @Override
darienf 0:832122ce6748 129 protected void onResume() {
darienf 0:832122ce6748 130 super.onResume();
darienf 0:832122ce6748 131
darienf 0:832122ce6748 132 // Ensures Bluetooth is enabled on the device. If Bluetooth is not currently enabled,
darienf 0:832122ce6748 133 // fire an intent to display a dialog asking the user to grant permission to enable it.
darienf 0:832122ce6748 134 if (!mBluetoothAdapter.isEnabled()) {
darienf 0:832122ce6748 135 if (!mBluetoothAdapter.isEnabled()) {
darienf 0:832122ce6748 136 Intent enableBtIntent = new Intent(BluetoothAdapter.ACTION_REQUEST_ENABLE);
darienf 0:832122ce6748 137 startActivityForResult(enableBtIntent, REQUEST_ENABLE_BT);
darienf 0:832122ce6748 138 }
darienf 0:832122ce6748 139 }
darienf 0:832122ce6748 140
darienf 0:832122ce6748 141 // Initializes list view adapter.
darienf 0:832122ce6748 142 mLeDeviceListAdapter = new LeDeviceListAdapter();
darienf 0:832122ce6748 143 setListAdapter(mLeDeviceListAdapter);
darienf 0:832122ce6748 144 scanLeDevice(true);
darienf 0:832122ce6748 145 }
darienf 0:832122ce6748 146
darienf 0:832122ce6748 147 @Override
darienf 0:832122ce6748 148 protected void onActivityResult(int requestCode, int resultCode, Intent data) {
darienf 0:832122ce6748 149 // User chose not to enable Bluetooth.
darienf 0:832122ce6748 150 if (requestCode == REQUEST_ENABLE_BT && resultCode == Activity.RESULT_CANCELED) {
darienf 0:832122ce6748 151 finish();
darienf 0:832122ce6748 152 return;
darienf 0:832122ce6748 153 }
darienf 0:832122ce6748 154 super.onActivityResult(requestCode, resultCode, data);
darienf 0:832122ce6748 155 }
darienf 0:832122ce6748 156
darienf 0:832122ce6748 157 @Override
darienf 0:832122ce6748 158 protected void onPause() {
darienf 0:832122ce6748 159 super.onPause();
darienf 0:832122ce6748 160 scanLeDevice(false);
darienf 0:832122ce6748 161 mLeDeviceListAdapter.clear();
darienf 0:832122ce6748 162 }
darienf 0:832122ce6748 163
darienf 0:832122ce6748 164 @Override
darienf 0:832122ce6748 165 protected void onListItemClick(ListView l, View v, int position, long id) {
darienf 0:832122ce6748 166 final BluetoothDevice device = mLeDeviceListAdapter.getDevice(position);
darienf 0:832122ce6748 167 if (device == null) return;
darienf 0:832122ce6748 168 //final Intent intent = new Intent(this, DeviceControlActivity.class);
darienf 0:832122ce6748 169 //intent.putExtra(DeviceControlActivity.EXTRAS_DEVICE_NAME, device.getName());
darienf 0:832122ce6748 170 //intent.putExtra(DeviceControlActivity.EXTRAS_DEVICE_ADDRESS, device.getAddress());
darienf 0:832122ce6748 171 if (mScanning) {
darienf 0:832122ce6748 172 mBluetoothAdapter.stopLeScan(mLeScanCallback);
darienf 0:832122ce6748 173 mScanning = false;
darienf 0:832122ce6748 174 }
darienf 0:832122ce6748 175 //startActivity(intent);
darienf 0:832122ce6748 176
darienf 0:832122ce6748 177 final Intent intent = new Intent(this, SensorActivity.class);
darienf 0:832122ce6748 178 intent.putExtra(EXTRA_DEVICE, device);
darienf 0:832122ce6748 179 startActivity(intent);
darienf 0:832122ce6748 180 }
darienf 0:832122ce6748 181
darienf 0:832122ce6748 182 private void scanLeDevice(final boolean enable) {
darienf 0:832122ce6748 183 if (enable) {
darienf 0:832122ce6748 184 // Stops scanning after a pre-defined scan period.
darienf 0:832122ce6748 185 mHandler.postDelayed(new Runnable() {
darienf 0:832122ce6748 186 @Override
darienf 0:832122ce6748 187 public void run() {
darienf 0:832122ce6748 188 mScanning = false;
darienf 0:832122ce6748 189 mBluetoothAdapter.stopLeScan(mLeScanCallback);
darienf 0:832122ce6748 190 invalidateOptionsMenu();
darienf 0:832122ce6748 191 }
darienf 0:832122ce6748 192 }, SCAN_PERIOD);
darienf 0:832122ce6748 193
darienf 0:832122ce6748 194 mScanning = true;
darienf 0:832122ce6748 195 mBluetoothAdapter.startLeScan(mLeScanCallback);
darienf 0:832122ce6748 196 } else {
darienf 0:832122ce6748 197 mScanning = false;
darienf 0:832122ce6748 198 mBluetoothAdapter.stopLeScan(mLeScanCallback);
darienf 0:832122ce6748 199 }
darienf 0:832122ce6748 200 invalidateOptionsMenu();
darienf 0:832122ce6748 201 }
darienf 0:832122ce6748 202
darienf 0:832122ce6748 203 // Adapter for holding devices found through scanning.
darienf 0:832122ce6748 204 private class LeDeviceListAdapter extends BaseAdapter {
darienf 0:832122ce6748 205 private ArrayList<BluetoothDevice> mLeDevices;
darienf 0:832122ce6748 206 private LayoutInflater mInflator;
darienf 0:832122ce6748 207
darienf 0:832122ce6748 208 public LeDeviceListAdapter() {
darienf 0:832122ce6748 209 super();
darienf 0:832122ce6748 210 mLeDevices = new ArrayList<BluetoothDevice>();
darienf 0:832122ce6748 211 mInflator = DeviceScanActivity.this.getLayoutInflater();
darienf 0:832122ce6748 212 }
darienf 0:832122ce6748 213
darienf 0:832122ce6748 214 public void addDevice(BluetoothDevice device) {
darienf 0:832122ce6748 215 if (!mLeDevices.contains(device)) {
darienf 0:832122ce6748 216 mLeDevices.add(device);
darienf 0:832122ce6748 217 }
darienf 0:832122ce6748 218 }
darienf 0:832122ce6748 219
darienf 0:832122ce6748 220 public BluetoothDevice getDevice(int position) {
darienf 0:832122ce6748 221 return mLeDevices.get(position);
darienf 0:832122ce6748 222 }
darienf 0:832122ce6748 223
darienf 0:832122ce6748 224 public void clear() {
darienf 0:832122ce6748 225 mLeDevices.clear();
darienf 0:832122ce6748 226 }
darienf 0:832122ce6748 227
darienf 0:832122ce6748 228 @Override
darienf 0:832122ce6748 229 public int getCount() {
darienf 0:832122ce6748 230 return mLeDevices.size();
darienf 0:832122ce6748 231 }
darienf 0:832122ce6748 232
darienf 0:832122ce6748 233 @Override
darienf 0:832122ce6748 234 public Object getItem(int i) {
darienf 0:832122ce6748 235 return mLeDevices.get(i);
darienf 0:832122ce6748 236 }
darienf 0:832122ce6748 237
darienf 0:832122ce6748 238 @Override
darienf 0:832122ce6748 239 public long getItemId(int i) {
darienf 0:832122ce6748 240 return i;
darienf 0:832122ce6748 241 }
darienf 0:832122ce6748 242
darienf 0:832122ce6748 243 @Override
darienf 0:832122ce6748 244 public View getView(int i, View view, ViewGroup viewGroup) {
darienf 0:832122ce6748 245 ViewHolder viewHolder;
darienf 0:832122ce6748 246 // General ListView optimization code.
darienf 0:832122ce6748 247 if (view == null) {
darienf 0:832122ce6748 248 view = mInflator.inflate(R.layout.listitem_device, null);
darienf 0:832122ce6748 249 viewHolder = new ViewHolder();
darienf 0:832122ce6748 250 viewHolder.deviceAddress = (TextView) view.findViewById(R.id.device_address);
darienf 0:832122ce6748 251 viewHolder.deviceName = (TextView) view.findViewById(R.id.device_name);
darienf 0:832122ce6748 252 view.setTag(viewHolder);
darienf 0:832122ce6748 253 } else {
darienf 0:832122ce6748 254 viewHolder = (ViewHolder) view.getTag();
darienf 0:832122ce6748 255 }
darienf 0:832122ce6748 256
darienf 0:832122ce6748 257 BluetoothDevice device = mLeDevices.get(i);
darienf 0:832122ce6748 258 final String deviceName = device.getName();
darienf 0:832122ce6748 259 if (deviceName != null && deviceName.length() > 0)
darienf 0:832122ce6748 260 viewHolder.deviceName.setText(deviceName);
darienf 0:832122ce6748 261 else
darienf 0:832122ce6748 262 viewHolder.deviceName.setText(R.string.unknown_device);
darienf 0:832122ce6748 263 viewHolder.deviceAddress.setText(device.getAddress());
darienf 0:832122ce6748 264
darienf 0:832122ce6748 265 return view;
darienf 0:832122ce6748 266 }
darienf 0:832122ce6748 267 }
darienf 0:832122ce6748 268
darienf 0:832122ce6748 269 // Device scan callback.
darienf 0:832122ce6748 270 private BluetoothAdapter.LeScanCallback mLeScanCallback =
darienf 0:832122ce6748 271 new BluetoothAdapter.LeScanCallback() {
darienf 0:832122ce6748 272
darienf 0:832122ce6748 273 @Override
darienf 0:832122ce6748 274 public void onLeScan(final BluetoothDevice device, int rssi, byte[] scanRecord) {
darienf 0:832122ce6748 275 runOnUiThread(new Runnable() {
darienf 0:832122ce6748 276 @Override
darienf 0:832122ce6748 277 public void run() {
darienf 0:832122ce6748 278 mLeDeviceListAdapter.addDevice(device);
darienf 0:832122ce6748 279 mLeDeviceListAdapter.notifyDataSetChanged();
darienf 0:832122ce6748 280 }
darienf 0:832122ce6748 281 });
darienf 0:832122ce6748 282 }
darienf 0:832122ce6748 283 };
darienf 0:832122ce6748 284
darienf 0:832122ce6748 285 static class ViewHolder {
darienf 0:832122ce6748 286 TextView deviceName;
darienf 0:832122ce6748 287 TextView deviceAddress;
darienf 0:832122ce6748 288 }
darienf 0:832122ce6748 289 }