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   1 /*
   2  * Copyright © 2012-2013 Mike Beattie <mike@ethernal.org>
   3  *
   4  * This program is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation; version 2 of the License.
   7  *
   8  * This program is distributed in the hope that it will be useful, but
   9  * WITHOUT ANY WARRANTY; without even the implied warranty of
  10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  11  * General Public License for more details.
  12  *
  13  * You should have received a copy of the GNU General Public License along
  14  * with this program; if not, write to the Free Software Foundation, Inc.,
  15  * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
  16  */
  17
  18 package org.altusmetrum.AltosDroid;
  19
  20 import java.lang.ref.WeakReference;
  21 import java.util.ArrayList;
  22 import java.util.Timer;
  23 import java.util.TimerTask;
  24
  25 import android.app.Activity;
  26 import android.bluetooth.BluetoothAdapter;
  27 import android.bluetooth.BluetoothDevice;
  28 import android.content.Intent;
  29 import android.content.Context;
  30 import android.content.ComponentName;
  31 import android.content.ServiceConnection;
  32 import android.content.DialogInterface;
  33 import android.os.IBinder;
  34 import android.os.Bundle;
  35 import android.os.Handler;
  36 import android.os.Message;
  37 import android.os.Messenger;
  38 import android.os.RemoteException;
  39 import android.support.v4.app.FragmentActivity;
  40 import android.support.v4.app.FragmentManager;
  41 import android.util.DisplayMetrics;
  42 import android.util.Log;
  43 import android.view.Menu;
  44 import android.view.MenuInflater;
  45 import android.view.MenuItem;
  46 import android.view.Window;
  47 import android.view.View;
  48 import android.widget.TabHost;
  49 import android.widget.TextView;
  50 import android.widget.RelativeLayout;
  51 import android.widget.Toast;
  52 import android.app.AlertDialog;
  53 import android.location.Location;
  54
  55 import org.altusmetrum.altoslib_5.*;
  56
  57 public class AltosDroid extends FragmentActivity {
  58         // Debugging
  59         static final String TAG = "AltosDroid";
  60         static final boolean D = true;
  61
  62         // Message types received by our Handler
  63
  64         public static final int MSG_STATE           = 1;
  65         public static final int MSG_UPDATE_AGE      = 2;
  66
  67         // Intent request codes
  68         public static final int REQUEST_CONNECT_DEVICE = 1;
  69         public static final int REQUEST_ENABLE_BT      = 2;
  70
  71         public static FragmentManager   fm;
  72
  73         private BluetoothAdapter mBluetoothAdapter = null;
  74
  75         // Layout Views
  76         private TextView mTitle;
  77
  78         // Flight state values
  79         private TextView mCallsignView;
  80         private TextView mRSSIView;
  81         private TextView mSerialView;
  82         private TextView mFlightView;
  83         private RelativeLayout mStateLayout;
  84         private TextView mStateView;
  85         private TextView mAgeView;
  86
  87         // field to display the version at the bottom of the screen
  88         private TextView mVersion;
  89
  90         private double frequency;
  91         private int telemetry_rate;
  92
  93         // Tabs
  94         TabHost         mTabHost;
  95         AltosViewPager  mViewPager;
  96         TabsAdapter     mTabsAdapter;
  97         ArrayList<AltosDroidTab> mTabs = new ArrayList<AltosDroidTab>();
  98         int             tabHeight;
  99
 100         // Timer and Saved flight state for Age calculation
 101         private Timer timer;
 102         AltosState saved_state;
 103
 104         // Service
 105         private boolean mIsBound   = false;
 106         private Messenger mService = null;
 107         final Messenger mMessenger = new Messenger(new IncomingHandler(this));
 108
 109         // Text to Speech
 110         private AltosVoice mAltosVoice = null;
 111
 112         // The Handler that gets information back from the Telemetry Service
 113         static class IncomingHandler extends Handler {
 114                 private final WeakReference<AltosDroid> mAltosDroid;
 115                 IncomingHandler(AltosDroid ad) { mAltosDroid = new WeakReference<AltosDroid>(ad); }
 116
 117                 @Override
 118                 public void handleMessage(Message msg) {
 119                         AltosDroid ad = mAltosDroid.get();
 120
 121                         switch (msg.what) {
 122                         case MSG_STATE:
 123                                 if(D) Log.d(TAG, "MSG_STATE");
 124                                 TelemetryState telemetry_state = (TelemetryState) msg.obj;
 125                                 if (telemetry_state == null) {
 126                                         Log.d(TAG, "telemetry_state null!");
 127                                         return;
 128                                 }
 129
 130                                 ad.update_state(telemetry_state);
 131                                 break;
 132                         case MSG_UPDATE_AGE:
 133                                 if(D) Log.d(TAG, "MSG_UPDATE_AGE");
 134                                 ad.update_age();
 135                                 break;
 136                         }
 137                 }
 138         };
 139
 140
 141         private ServiceConnection mConnection = new ServiceConnection() {
 142                 public void onServiceConnected(ComponentName className, IBinder service) {
 143                         mService = new Messenger(service);
 144                         try {
 145                                 Message msg = Message.obtain(null, TelemetryService.MSG_REGISTER_CLIENT);
 146                                 msg.replyTo = mMessenger;
 147                                 mService.send(msg);
 148                         } catch (RemoteException e) {
 149                                 // In this case the service has crashed before we could even do anything with it
 150                         }
 151                 }
 152
 153                 public void onServiceDisconnected(ComponentName className) {
 154                         // This is called when the connection with the service has been unexpectedly disconnected - process crashed.
 155                         mService = null;
 156                 }
 157         };
 158
 159         void doBindService() {
 160                 bindService(new Intent(this, TelemetryService.class), mConnection, Context.BIND_AUTO_CREATE);
 161                 mIsBound = true;
 162         }
 163
 164         void doUnbindService() {
 165                 if (mIsBound) {
 166                         // If we have received the service, and hence registered with it, then now is the time to unregister.
 167                         if (mService != null) {
 168                                 try {
 169                                         Message msg = Message.obtain(null, TelemetryService.MSG_UNREGISTER_CLIENT);
 170                                         msg.replyTo = mMessenger;
 171                                         mService.send(msg);
 172                                 } catch (RemoteException e) {
 173                                         // There is nothing special we need to do if the service has crashed.
 174                                 }
 175                         }
 176                         // Detach our existing connection.
 177                         unbindService(mConnection);
 178                         mIsBound = false;
 179                 }
 180         }
 181
 182         public void registerTab(AltosDroidTab mTab) {
 183                 mTabs.add(mTab);
 184         }
 185
 186         public void unregisterTab(AltosDroidTab mTab) {
 187                 mTabs.remove(mTab);
 188         }
 189
 190         void update_title(TelemetryState telemetry_state) {
 191                 switch (telemetry_state.connect) {
 192                 case TelemetryState.CONNECT_CONNECTED:
 193                         if (telemetry_state.config != null) {
 194                                 String str = String.format("S/N %d %6.3f MHz", telemetry_state.config.serial,
 195                                                            telemetry_state.frequency);
 196                                 if (telemetry_state.telemetry_rate != AltosLib.ao_telemetry_rate_38400)
 197                                         str = str.concat(String.format(" %d bps",
 198                                                                        AltosLib.ao_telemetry_rate_values[telemetry_state.telemetry_rate]));
 199                                 mTitle.setText(str);
 200                         } else {
 201                                 mTitle.setText(R.string.title_connected_to);
 202                         }
 203                         break;
 204                 case TelemetryState.CONNECT_CONNECTING:
 205                         mTitle.setText(R.string.title_connecting);
 206                         break;
 207                 case TelemetryState.CONNECT_READY:
 208                 case TelemetryState.CONNECT_NONE:
 209                         mTitle.setText(R.string.title_not_connected);
 210                         break;
 211                 }
 212         }
 213
 214         void start_timer() {
 215                 if (timer == null) {
 216                         timer = new Timer();
 217                         timer.scheduleAtFixedRate(new TimerTask(){ public void run() {onTimerTick();}}, 1000L, 1000L);
 218                 }
 219         }
 220
 221         void stop_timer() {
 222                 if (timer != null) {
 223                         timer.cancel();
 224                         timer.purge();
 225                         timer = null;
 226                 }
 227         }
 228
 229         void update_state(TelemetryState telemetry_state) {
 230                 update_title(telemetry_state);
 231                 update_ui(telemetry_state.state, telemetry_state.location);
 232                 if (telemetry_state.connect == TelemetryState.CONNECT_CONNECTED)
 233                         start_timer();
 234                 else
 235                         stop_timer();
 236         }
 237
 238         boolean same_string(String a, String b) {
 239                 if (a == null) {
 240                         if (b == null)
 241                                 return true;
 242                         return false;
 243                 } else {
 244                         if (b == null)
 245                                 return false;
 246                         return a.equals(b);
 247                 }
 248         }
 249
 250         void update_age() {
 251                 if (saved_state != null)
 252                         mAgeView.setText(String.format("%d", (System.currentTimeMillis() - saved_state.received_time + 500) / 1000));
 253         }
 254
 255         void update_ui(AltosState state, Location location) {
 256
 257                 Log.d(TAG, "update_ui");
 258
 259                 int prev_state = AltosLib.ao_flight_invalid;
 260
 261                 AltosGreatCircle from_receiver = null;
 262
 263                 if (saved_state != null)
 264                         prev_state = saved_state.state;
 265
 266                 if (state != null) {
 267                         Log.d(TAG, String.format("prev state %d new state  %d\n", prev_state, state.state));
 268                         if (state.state == AltosLib.ao_flight_stateless) {
 269                                 boolean prev_locked = false;
 270                                 boolean locked = false;
 271
 272                                 if(state.gps != null)
 273                                         locked = state.gps.locked;
 274                                 if (saved_state != null && saved_state.gps != null)
 275                                         prev_locked = saved_state.gps.locked;
 276                                 if (prev_locked != locked) {
 277                                         String currentTab = mTabHost.getCurrentTabTag();
 278                                         if (locked) {
 279                                                 if (currentTab.equals("pad")) mTabHost.setCurrentTabByTag("descent");
 280                                         } else {
 281                                                 if (currentTab.equals("descent")) mTabHost.setCurrentTabByTag("pad");
 282                                         }
 283                                 }
 284                         } else {
 285                                 if (prev_state != state.state) {
 286                                         String currentTab = mTabHost.getCurrentTabTag();
 287                                         Log.d(TAG, "switch state");
 288                                         switch (state.state) {
 289                                         case AltosLib.ao_flight_boost:
 290                                                 if (currentTab.equals("pad")) mTabHost.setCurrentTabByTag("ascent");
 291                                                 break;
 292                                         case AltosLib.ao_flight_drogue:
 293                                                 if (currentTab.equals("ascent")) mTabHost.setCurrentTabByTag("descent");
 294                                                 break;
 295                                         case AltosLib.ao_flight_landed:
 296                                                 if (currentTab.equals("descent")) mTabHost.setCurrentTabByTag("landed");
 297                                                 break;
 298                                         case AltosLib.ao_flight_stateless:
 299                                                 if (currentTab.equals("pad")) mTabHost.setCurrentTabByTag("descent");
 300                                                 break;
 301                                         }
 302                                 }
 303                         }
 304
 305                         if (location != null && state.gps != null && state.gps.locked) {
 306                                 double altitude = 0;
 307                                 if (location.hasAltitude())
 308                                         altitude = location.getAltitude();
 309                                 from_receiver = new AltosGreatCircle(location.getLatitude(),
 310                                                                      location.getLongitude(),
 311                                                                      altitude,
 312                                                                      state.gps.lat,
 313                                                                      state.gps.lon,
 314                                                                      state.gps.alt);
 315                         }
 316
 317                         if (saved_state == null || !same_string(saved_state.callsign, state.callsign)) {
 318                                 Log.d(TAG, "update callsign");
 319                                 mCallsignView.setText(state.callsign);
 320                         }
 321                         if (saved_state == null || state.serial != saved_state.serial) {
 322                                 Log.d(TAG, "update serial");
 323                                 mSerialView.setText(String.format("%d", state.serial));
 324                         }
 325                         if (saved_state == null || state.flight != saved_state.flight) {
 326                                 Log.d(TAG, "update flight");
 327                                 mFlightView.setText(String.format("%d", state.flight));
 328                         }
 329                         if (saved_state == null || state.state != saved_state.state) {
 330                                 Log.d(TAG, "update state");
 331                                 if (state.state == AltosLib.ao_flight_stateless) {
 332                                         mStateLayout.setVisibility(View.GONE);
 333                                 } else {
 334                                         mStateView.setText(state.state_name());
 335                                         mStateLayout.setVisibility(View.VISIBLE);
 336                                 }
 337                         }
 338                         if (saved_state == null || state.rssi != saved_state.rssi) {
 339                                 Log.d(TAG, "update rssi");
 340                                 mRSSIView.setText(String.format("%d", state.rssi));
 341                         }
 342                 }
 343
 344                 for (AltosDroidTab mTab : mTabs)
 345                         mTab.update_ui(state, from_receiver, location, mTab == mTabsAdapter.currentItem());
 346
 347                 if (state != null)
 348                         mAltosVoice.tell(state, from_receiver);
 349
 350                 saved_state = state;
 351         }
 352
 353         private void onTimerTick() {
 354                 try {
 355                         mMessenger.send(Message.obtain(null, MSG_UPDATE_AGE));
 356                 } catch (RemoteException e) {
 357                 }
 358         }
 359
 360         static String pos(double p, String pos, String neg) {
 361                 String  h = pos;
 362                 if (p == AltosLib.MISSING)
 363                         return "";
 364                 if (p < 0) {
 365                         h = neg;
 366                         p = -p;
 367                 }
 368                 int deg = (int) Math.floor(p);
 369                 double min = (p - Math.floor(p)) * 60.0;
 370                 return String.format("%d°%9.4f\" %s", deg, min, h);
 371         }
 372
 373         static String number(String format, double value) {
 374                 if (value == AltosLib.MISSING)
 375                         return "";
 376                 return String.format(format, value);
 377         }
 378
 379         static String integer(String format, int value) {
 380                 if (value == AltosLib.MISSING)
 381                         return "";
 382                 return String.format(format, value);
 383         }
 384
 385         @Override
 386         public void onCreate(Bundle savedInstanceState) {
 387                 super.onCreate(savedInstanceState);
 388                 if(D) Log.e(TAG, "+++ ON CREATE +++");
 389
 390                 // Get local Bluetooth adapter
 391                 mBluetoothAdapter = BluetoothAdapter.getDefaultAdapter();
 392
 393                 // If the adapter is null, then Bluetooth is not supported
 394                 if (mBluetoothAdapter == null) {
 395                         Toast.makeText(this, "Bluetooth is not available", Toast.LENGTH_LONG).show();
 396                         finish();
 397                 }
 398
 399                 fm = getSupportFragmentManager();
 400
 401                 // Set up the window layout
 402                 requestWindowFeature(Window.FEATURE_CUSTOM_TITLE);
 403                 setContentView(R.layout.altosdroid);
 404                 getWindow().setFeatureInt(Window.FEATURE_CUSTOM_TITLE, R.layout.custom_title);
 405
 406                 // Create the Tabs and ViewPager
 407                 mTabHost = (TabHost)findViewById(android.R.id.tabhost);
 408                 mTabHost.setup();
 409
 410                 mViewPager = (AltosViewPager)findViewById(R.id.pager);
 411                 mViewPager.setOffscreenPageLimit(4);
 412
 413                 mTabsAdapter = new TabsAdapter(this, mTabHost, mViewPager);
 414
 415                 mTabsAdapter.addTab(mTabHost.newTabSpec("pad").setIndicator("Pad"), TabPad.class, null);
 416                 mTabsAdapter.addTab(mTabHost.newTabSpec("ascent").setIndicator("Ascent"), TabAscent.class, null);
 417                 mTabsAdapter.addTab(mTabHost.newTabSpec("descent").setIndicator("Descent"), TabDescent.class, null);
 418                 mTabsAdapter.addTab(mTabHost.newTabSpec("landed").setIndicator("Landed"), TabLanded.class, null);
 419                 mTabsAdapter.addTab(mTabHost.newTabSpec("map").setIndicator("Map"), TabMap.class, null);
 420
 421
 422                 // Scale the size of the Tab bar for different screen densities
 423                 // This probably won't be needed when we start supporting ICS+ tabs.
 424                 DisplayMetrics metrics = new DisplayMetrics();
 425                 getWindowManager().getDefaultDisplay().getMetrics(metrics);
 426                 int density = metrics.densityDpi;
 427
 428                 if (density==DisplayMetrics.DENSITY_XHIGH)
 429                         tabHeight = 65;
 430                 else if (density==DisplayMetrics.DENSITY_HIGH)
 431                         tabHeight = 45;
 432                 else if (density==DisplayMetrics.DENSITY_MEDIUM)
 433                         tabHeight = 35;
 434                 else if (density==DisplayMetrics.DENSITY_LOW)
 435                         tabHeight = 25;
 436                 else
 437                         tabHeight = 65;
 438
 439                 for (int i = 0; i < 5; i++)
 440                         mTabHost.getTabWidget().getChildAt(i).getLayoutParams().height = tabHeight;
 441
 442                 // Set up the custom title
 443                 mTitle = (TextView) findViewById(R.id.title_left_text);
 444                 mTitle.setText(R.string.app_name);
 445                 mTitle = (TextView) findViewById(R.id.title_right_text);
 446
 447                 // Display the Version
 448                 mVersion = (TextView) findViewById(R.id.version);
 449                 mVersion.setText("Version: " + BuildInfo.version +
 450                                  "  Built: " + BuildInfo.builddate + " " + BuildInfo.buildtime + " " + BuildInfo.buildtz +
 451                                  "  (" + BuildInfo.branch + "-" + BuildInfo.commitnum + "-" + BuildInfo.commithash + ")");
 452
 453                 mCallsignView  = (TextView) findViewById(R.id.callsign_value);
 454                 mRSSIView      = (TextView) findViewById(R.id.rssi_value);
 455                 mSerialView    = (TextView) findViewById(R.id.serial_value);
 456                 mFlightView    = (TextView) findViewById(R.id.flight_value);
 457                 mStateLayout   = (RelativeLayout) findViewById(R.id.state_container);
 458                 mStateView     = (TextView) findViewById(R.id.state_value);
 459                 mAgeView       = (TextView) findViewById(R.id.age_value);
 460
 461                 mAltosVoice = new AltosVoice(this);
 462         }
 463
 464         @Override
 465         public void onStart() {
 466                 super.onStart();
 467                 if(D) Log.e(TAG, "++ ON START ++");
 468
 469                 // Start Telemetry Service
 470                 startService(new Intent(AltosDroid.this, TelemetryService.class));
 471
 472                 if (!mBluetoothAdapter.isEnabled()) {
 473                         Intent enableIntent = new Intent(BluetoothAdapter.ACTION_REQUEST_ENABLE);
 474                         startActivityForResult(enableIntent, AltosDroid.REQUEST_ENABLE_BT);
 475                 }
 476
 477                 doBindService();
 478
 479         }
 480
 481         @Override
 482         public synchronized void onResume() {
 483                 super.onResume();
 484                 if(D) Log.e(TAG, "+ ON RESUME +");
 485         }
 486
 487         @Override
 488         public synchronized void onPause() {
 489                 super.onPause();
 490                 if(D) Log.e(TAG, "- ON PAUSE -");
 491         }
 492
 493         @Override
 494         public void onStop() {
 495                 super.onStop();
 496                 if(D) Log.e(TAG, "-- ON STOP --");
 497
 498                 doUnbindService();
 499         }
 500
 501         @Override
 502         public void onDestroy() {
 503                 super.onDestroy();
 504                 if(D) Log.e(TAG, "--- ON DESTROY ---");
 505
 506                 if (mAltosVoice != null) mAltosVoice.stop();
 507                 stop_timer();
 508         }
 509
 510         public void onActivityResult(int requestCode, int resultCode, Intent data) {
 511                 if(D) Log.d(TAG, "onActivityResult " + resultCode);
 512                 switch (requestCode) {
 513                 case REQUEST_CONNECT_DEVICE:
 514                         // When DeviceListActivity returns with a device to connect to
 515                         if (resultCode == Activity.RESULT_OK) {
 516                                 connectDevice(data);
 517                         }
 518                         break;
 519                 case REQUEST_ENABLE_BT:
 520                         // When the request to enable Bluetooth returns
 521                         if (resultCode == Activity.RESULT_OK) {
 522                                 // Bluetooth is now enabled, so set up a chat session
 523                                 //setupChat();
 524                         } else {
 525                                 // User did not enable Bluetooth or an error occured
 526                                 Log.e(TAG, "BT not enabled");
 527                                 stopService(new Intent(AltosDroid.this, TelemetryService.class));
 528                                 Toast.makeText(this, R.string.bt_not_enabled, Toast.LENGTH_SHORT).show();
 529                                 finish();
 530                         }
 531                         break;
 532                 }
 533         }
 534
 535         private void connectDevice(String address) {
 536                 // Attempt to connect to the device
 537                 try {
 538                         if (D) Log.d(TAG, "Connecting to " + address);
 539                         mService.send(Message.obtain(null, TelemetryService.MSG_CONNECT, address));
 540                 } catch (RemoteException e) {
 541                 }
 542         }
 543
 544         private void connectDevice(Intent data) {
 545                 // Get the device MAC address
 546                 String address = data.getExtras().getString(DeviceListActivity.EXTRA_DEVICE_ADDRESS);
 547                 connectDevice(address);
 548         }
 549
 550         @Override
 551         public boolean onCreateOptionsMenu(Menu menu) {
 552                 MenuInflater inflater = getMenuInflater();
 553                 inflater.inflate(R.menu.option_menu, menu);
 554                 return true;
 555         }
 556
 557         void setFrequency(double freq) {
 558                 try {
 559                         mService.send(Message.obtain(null, TelemetryService.MSG_SETFREQUENCY, freq));
 560                 } catch (RemoteException e) {
 561                 }
 562         }
 563
 564         void setFrequency(String freq) {
 565                 try {
 566                         setFrequency (Double.parseDouble(freq.substring(11, 17)));
 567                 } catch (NumberFormatException e) {
 568                 }
 569         }
 570
 571         void setBaud(int baud) {
 572                 try {
 573                         mService.send(Message.obtain(null, TelemetryService.MSG_SETBAUD, baud));
 574                 } catch (RemoteException e) {
 575                 }
 576         }
 577
 578         void setBaud(String baud) {
 579                 try {
 580                         int     value = Integer.parseInt(baud);
 581                         int     rate = AltosLib.ao_telemetry_rate_38400;
 582                         switch (value) {
 583                         case 2400:
 584                                 rate = AltosLib.ao_telemetry_rate_2400;
 585                                 break;
 586                         case 9600:
 587                                 rate = AltosLib.ao_telemetry_rate_9600;
 588                                 break;
 589                         case 38400:
 590                                 rate = AltosLib.ao_telemetry_rate_38400;
 591                                 break;
 592                         }
 593                         setBaud(rate);
 594                 } catch (NumberFormatException e) {
 595                 }
 596         }
 597
 598         @Override
 599         public boolean onOptionsItemSelected(MenuItem item) {
 600                 Intent serverIntent = null;
 601                 switch (item.getItemId()) {
 602                 case R.id.connect_scan:
 603                         // Launch the DeviceListActivity to see devices and do scan
 604                         serverIntent = new Intent(this, DeviceListActivity.class);
 605                         startActivityForResult(serverIntent, REQUEST_CONNECT_DEVICE);
 606                         return true;
 607                 case R.id.quit:
 608                         Log.d(TAG, "R.id.quit");
 609                         stopService(new Intent(AltosDroid.this, TelemetryService.class));
 610                         finish();
 611                         return true;
 612                 case R.id.select_freq:
 613                         // Set the TBT radio frequency
 614
 615                         final String[] frequencies = {
 616                                 "Channel 0 (434.550MHz)",
 617                                 "Channel 1 (434.650MHz)",
 618                                 "Channel 2 (434.750MHz)",
 619                                 "Channel 3 (434.850MHz)",
 620                                 "Channel 4 (434.950MHz)",
 621                                 "Channel 5 (435.050MHz)",
 622                                 "Channel 6 (435.150MHz)",
 623                                 "Channel 7 (435.250MHz)",
 624                                 "Channel 8 (435.350MHz)",
 625                                 "Channel 9 (435.450MHz)"
 626                         };
 627
 628                         AlertDialog.Builder builder_freq = new AlertDialog.Builder(this);
 629                         builder_freq.setTitle("Pick a frequency");
 630                         builder_freq.setItems(frequencies,
 631                                          new DialogInterface.OnClickListener() {
 632                                                  public void onClick(DialogInterface dialog, int item) {
 633                                                          setFrequency(frequencies[item]);
 634                                                  }
 635                                          });
 636                         AlertDialog alert_freq = builder_freq.create();
 637                         alert_freq.show();
 638                         return true;
 639                 case R.id.select_rate:
 640                         // Set the TBT baud rate
 641
 642                         final String[] rates = {
 643                                 "38400",
 644                                 "9600",
 645                                 "2400",
 646                         };
 647
 648                         AlertDialog.Builder builder_rate = new AlertDialog.Builder(this);
 649                         builder_rate.setTitle("Pick a baud rate");
 650                         builder_rate.setItems(rates,
 651                                          new DialogInterface.OnClickListener() {
 652                                                  public void onClick(DialogInterface dialog, int item) {
 653                                                          setBaud(rates[item]);
 654                                                  }
 655                                          });
 656                         AlertDialog alert_rate = builder_rate.create();
 657                         alert_rate.show();
 658                         return true;
 659                 }
 660                 return false;
 661         }
 662
 663 }