2 * Copyright © 2012-2013 Mike Beattie <mike@ethernal.org>
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.
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.
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.
18 package org.altusmetrum.AltosDroid;
20 import java.lang.ref.WeakReference;
21 import java.util.ArrayList;
22 import java.util.Timer;
23 import java.util.TimerTask;
26 import android.app.Activity;
27 import android.app.PendingIntent;
28 import android.bluetooth.BluetoothAdapter;
29 import android.bluetooth.BluetoothDevice;
30 import android.content.Intent;
31 import android.content.Context;
32 import android.content.ComponentName;
33 import android.content.ServiceConnection;
34 import android.content.DialogInterface;
35 import android.os.IBinder;
36 import android.os.Bundle;
37 import android.os.Handler;
38 import android.os.Message;
39 import android.os.Messenger;
40 import android.os.RemoteException;
41 import android.content.res.Resources;
42 import android.support.v4.app.FragmentActivity;
43 import android.support.v4.app.FragmentManager;
44 import android.util.DisplayMetrics;
45 import android.view.*;
46 import android.widget.*;
47 import android.app.AlertDialog;
48 import android.location.Location;
49 import android.hardware.usb.*;
50 import android.graphics.*;
51 import android.graphics.drawable.*;
53 import org.altusmetrum.altoslib_7.*;
55 public class AltosDroid extends FragmentActivity implements AltosUnitsListener {
57 // Actions sent to the telemetry server at startup time
59 public static final String ACTION_BLUETOOTH = "org.altusmetrum.AltosDroid.BLUETOOTH";
60 public static final String ACTION_USB = "org.altusmetrum.AltosDroid.USB";
62 // Message types received by our Handler
64 public static final int MSG_STATE = 1;
65 public static final int MSG_UPDATE_AGE = 2;
67 // Intent request codes
68 public static final int REQUEST_CONNECT_DEVICE = 1;
69 public static final int REQUEST_ENABLE_BT = 2;
70 public static final int REQUEST_PRELOAD_MAPS = 3;
71 public static final int REQUEST_MAP_TYPE = 4;
73 public int map_type = AltosMap.maptype_hybrid;
75 public static FragmentManager fm;
77 private BluetoothAdapter mBluetoothAdapter = null;
79 // Flight state values
80 private TextView mCallsignView;
81 private TextView mRSSIView;
82 private TextView mSerialView;
83 private TextView mFlightView;
84 private RelativeLayout mStateLayout;
85 private TextView mStateView;
86 private TextView mAgeView;
87 private boolean mAgeViewOld;
88 private int mAgeNewColor;
89 private int mAgeOldColor;
91 // field to display the version at the bottom of the screen
92 private TextView mVersion;
94 private double frequency;
95 private int telemetry_rate;
99 AltosViewPager mViewPager;
100 TabsAdapter mTabsAdapter;
101 ArrayList<AltosDroidTab> mTabs = new ArrayList<AltosDroidTab>();
104 // Timer and Saved flight state for Age calculation
106 AltosState saved_state;
107 TelemetryState telemetry_state;
110 UsbDevice pending_usb_device;
111 boolean start_with_usb;
114 private boolean mIsBound = false;
115 private Messenger mService = null;
116 final Messenger mMessenger = new Messenger(new IncomingHandler(this));
119 private AltosVoice mAltosVoice = null;
121 // The Handler that gets information back from the Telemetry Service
122 static class IncomingHandler extends Handler {
123 private final WeakReference<AltosDroid> mAltosDroid;
124 IncomingHandler(AltosDroid ad) { mAltosDroid = new WeakReference<AltosDroid>(ad); }
127 public void handleMessage(Message msg) {
128 AltosDroid ad = mAltosDroid.get();
132 AltosDebug.debug("MSG_STATE");
133 if (msg.obj == null) {
134 AltosDebug.debug("telemetry_state null!");
137 ad.update_state((TelemetryState) msg.obj);
140 AltosDebug.debug("MSG_UPDATE_AGE");
148 private ServiceConnection mConnection = new ServiceConnection() {
149 public void onServiceConnected(ComponentName className, IBinder service) {
150 mService = new Messenger(service);
152 Message msg = Message.obtain(null, TelemetryService.MSG_REGISTER_CLIENT);
153 msg.replyTo = mMessenger;
155 } catch (RemoteException e) {
156 // In this case the service has crashed before we could even do anything with it
158 if (pending_usb_device != null) {
160 mService.send(Message.obtain(null, TelemetryService.MSG_OPEN_USB, pending_usb_device));
161 pending_usb_device = null;
162 } catch (RemoteException e) {
167 public void onServiceDisconnected(ComponentName className) {
168 // This is called when the connection with the service has been unexpectedly disconnected - process crashed.
173 void doBindService() {
174 bindService(new Intent(this, TelemetryService.class), mConnection, Context.BIND_AUTO_CREATE);
178 void doUnbindService() {
180 // If we have received the service, and hence registered with it, then now is the time to unregister.
181 if (mService != null) {
183 Message msg = Message.obtain(null, TelemetryService.MSG_UNREGISTER_CLIENT);
184 msg.replyTo = mMessenger;
186 } catch (RemoteException e) {
187 // There is nothing special we need to do if the service has crashed.
190 // Detach our existing connection.
191 unbindService(mConnection);
196 public void registerTab(AltosDroidTab mTab) {
200 public void unregisterTab(AltosDroidTab mTab) {
204 public void units_changed(boolean imperial_units) {
205 for (AltosDroidTab mTab : mTabs)
206 mTab.units_changed(imperial_units);
209 void update_title(TelemetryState telemetry_state) {
210 switch (telemetry_state.connect) {
211 case TelemetryState.CONNECT_CONNECTED:
212 if (telemetry_state.config != null) {
213 String str = String.format("S/N %d %6.3f MHz", telemetry_state.config.serial,
214 telemetry_state.frequency);
215 if (telemetry_state.telemetry_rate != AltosLib.ao_telemetry_rate_38400)
216 str = str.concat(String.format(" %d bps",
217 AltosLib.ao_telemetry_rate_values[telemetry_state.telemetry_rate]));
220 setTitle(R.string.title_connected_to);
223 case TelemetryState.CONNECT_CONNECTING:
224 if (telemetry_state.address != null)
225 setTitle(String.format("Connecting to %s...", telemetry_state.address.name));
227 setTitle("Connecting to something...");
229 case TelemetryState.CONNECT_DISCONNECTED:
230 case TelemetryState.CONNECT_NONE:
231 setTitle(R.string.title_not_connected);
239 timer.scheduleAtFixedRate(new TimerTask(){ public void run() {onTimerTick();}}, 1000L, 1000L);
251 boolean registered_units_listener;
255 void update_state(TelemetryState new_telemetry_state) {
257 if (new_telemetry_state != null)
258 telemetry_state = new_telemetry_state;
260 if (current_serial == 0)
261 current_serial = telemetry_state.latest_serial;
263 if (!registered_units_listener) {
264 registered_units_listener = true;
265 AltosPreferences.register_units_listener(this);
268 serials = telemetry_state.states.keySet().toArray(new Integer[0]);
270 update_title(telemetry_state);
272 AltosDebug.debug("update state current serial %d\n", current_serial);
274 AltosState state = null;
275 if (telemetry_state.states.containsKey(current_serial))
276 state = telemetry_state.states.get(current_serial);
278 update_ui(telemetry_state, state, telemetry_state.location);
283 boolean same_string(String a, String b) {
296 private int blend_component(int a, int b, double r, int shift, int mask) {
297 return ((int) (((a >> shift) & mask) * r + ((b >> shift) & mask) * (1 - r)) & mask) << shift;
299 private int blend_color(int a, int b, double r) {
300 return (blend_component(a, b, r, 0, 0xff) |
301 blend_component(a, b, r, 8, 0xff) |
302 blend_component(a, b, r, 16, 0xff) |
303 blend_component(a, b, r, 24, 0xff));
306 int state_age(AltosState state) {
307 return (int) ((System.currentTimeMillis() - state.received_time + 500) / 1000);
310 void set_screen_on(int age) {
312 getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
314 getWindow().clearFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
318 if (saved_state != null) {
319 int age = state_age(saved_state);
321 double age_scale = age / 100.0;
326 mAgeView.setTextColor(blend_color(mAgeOldColor, mAgeNewColor, age_scale));
332 text = String.format("%ds", age);
333 else if (age < 60 * 60)
334 text = String.format("%dm", age / 60);
335 else if (age < 60 * 60 * 24)
336 text = String.format("%dh", age / (60 * 60));
338 text = String.format("%dd", age / (24 * 60 * 60));
339 mAgeView.setText(text);
343 void update_ui(TelemetryState telem_state, AltosState state, Location location) {
345 int prev_state = AltosLib.ao_flight_invalid;
347 AltosGreatCircle from_receiver = null;
349 if (saved_state != null)
350 prev_state = saved_state.state;
353 set_screen_on(state_age(state));
355 if (state.state == AltosLib.ao_flight_stateless) {
356 boolean prev_locked = false;
357 boolean locked = false;
359 if(state.gps != null)
360 locked = state.gps.locked;
361 if (saved_state != null && saved_state.gps != null)
362 prev_locked = saved_state.gps.locked;
363 if (prev_locked != locked) {
364 String currentTab = mTabHost.getCurrentTabTag();
366 if (currentTab.equals("pad")) mTabHost.setCurrentTabByTag("descent");
368 if (currentTab.equals("descent")) mTabHost.setCurrentTabByTag("pad");
372 if (prev_state != state.state) {
373 String currentTab = mTabHost.getCurrentTabTag();
374 switch (state.state) {
375 case AltosLib.ao_flight_boost:
376 if (currentTab.equals("pad")) mTabHost.setCurrentTabByTag("ascent");
378 case AltosLib.ao_flight_drogue:
379 if (currentTab.equals("ascent")) mTabHost.setCurrentTabByTag("descent");
381 case AltosLib.ao_flight_landed:
382 if (currentTab.equals("descent")) mTabHost.setCurrentTabByTag("landed");
384 case AltosLib.ao_flight_stateless:
385 if (currentTab.equals("pad")) mTabHost.setCurrentTabByTag("descent");
391 if (location != null && state.gps != null && state.gps.locked) {
393 if (location.hasAltitude())
394 altitude = location.getAltitude();
395 from_receiver = new AltosGreatCircle(location.getLatitude(),
396 location.getLongitude(),
403 if (saved_state == null || !same_string(saved_state.callsign, state.callsign)) {
404 mCallsignView.setText(state.callsign);
406 if (saved_state == null || state.serial != saved_state.serial) {
407 mSerialView.setText(String.format("%d", state.serial));
409 if (saved_state == null || state.flight != saved_state.flight) {
410 if (state.flight == AltosLib.MISSING)
411 mFlightView.setText("");
413 mFlightView.setText(String.format("%d", state.flight));
415 if (saved_state == null || state.state != saved_state.state) {
416 if (state.state == AltosLib.ao_flight_stateless) {
417 mStateLayout.setVisibility(View.GONE);
419 mStateView.setText(state.state_name());
420 mStateLayout.setVisibility(View.VISIBLE);
423 if (saved_state == null || state.rssi != saved_state.rssi) {
424 mRSSIView.setText(String.format("%d", state.rssi));
428 for (AltosDroidTab mTab : mTabs)
429 mTab.update_ui(telem_state, state, from_receiver, location, mTab == mTabsAdapter.currentItem());
431 if (state != null && mAltosVoice != null)
432 mAltosVoice.tell(state, from_receiver);
437 private void onTimerTick() {
439 mMessenger.send(Message.obtain(null, MSG_UPDATE_AGE));
440 } catch (RemoteException e) {
444 static String pos(double p, String pos, String neg) {
446 if (p == AltosLib.MISSING)
452 int deg = (int) Math.floor(p);
453 double min = (p - Math.floor(p)) * 60.0;
454 return String.format("%d°%9.4f\" %s", deg, min, h);
457 static String number(String format, double value) {
458 if (value == AltosLib.MISSING)
460 return String.format(format, value);
463 static String integer(String format, int value) {
464 if (value == AltosLib.MISSING)
466 return String.format(format, value);
469 private View create_tab_view(String label) {
470 LayoutInflater inflater = (LayoutInflater) this.getLayoutInflater();
471 View tab_view = inflater.inflate(R.layout.tab_layout, null);
472 TextView text_view = (TextView) tab_view.findViewById (R.id.tabLabel);
473 text_view.setText(label);
478 public void onCreate(Bundle savedInstanceState) {
479 super.onCreate(savedInstanceState);
480 AltosDebug.init(this);
481 AltosDebug.debug("+++ ON CREATE +++");
483 fm = getSupportFragmentManager();
485 // Set up the window layout
486 setContentView(R.layout.altosdroid);
488 // Create the Tabs and ViewPager
489 mTabHost = (TabHost)findViewById(android.R.id.tabhost);
492 mViewPager = (AltosViewPager)findViewById(R.id.pager);
493 mViewPager.setOffscreenPageLimit(4);
495 mTabsAdapter = new TabsAdapter(this, mTabHost, mViewPager);
497 mTabsAdapter.addTab(mTabHost.newTabSpec("pad").setIndicator(create_tab_view("Pad")), TabPad.class, null);
498 mTabsAdapter.addTab(mTabHost.newTabSpec("ascent").setIndicator(create_tab_view("Ascent")), TabAscent.class, null);
499 mTabsAdapter.addTab(mTabHost.newTabSpec("descent").setIndicator(create_tab_view("Descent")), TabDescent.class, null);
500 mTabsAdapter.addTab(mTabHost.newTabSpec("landed").setIndicator(create_tab_view("Landed")), TabLanded.class, null);
501 mTabsAdapter.addTab(mTabHost.newTabSpec("map").setIndicator(create_tab_view("Map")), TabMap.class, null);
502 mTabsAdapter.addTab(mTabHost.newTabSpec("offmap").setIndicator(create_tab_view("OffMap")), TabMapOffline.class, null);
504 // Display the Version
505 mVersion = (TextView) findViewById(R.id.version);
506 mVersion.setText("Version: " + BuildInfo.version +
507 " Built: " + BuildInfo.builddate + " " + BuildInfo.buildtime + " " + BuildInfo.buildtz +
508 " (" + BuildInfo.branch + "-" + BuildInfo.commitnum + "-" + BuildInfo.commithash + ")");
510 mCallsignView = (TextView) findViewById(R.id.callsign_value);
511 mRSSIView = (TextView) findViewById(R.id.rssi_value);
512 mSerialView = (TextView) findViewById(R.id.serial_value);
513 mFlightView = (TextView) findViewById(R.id.flight_value);
514 mStateLayout = (RelativeLayout) findViewById(R.id.state_container);
515 mStateView = (TextView) findViewById(R.id.state_value);
516 mAgeView = (TextView) findViewById(R.id.age_value);
517 mAgeNewColor = mAgeView.getTextColors().getDefaultColor();
518 mAgeOldColor = getResources().getColor(R.color.old_color);
521 private boolean ensureBluetooth() {
522 // Get local Bluetooth adapter
523 mBluetoothAdapter = BluetoothAdapter.getDefaultAdapter();
525 // If the adapter is null, then Bluetooth is not supported
526 if (mBluetoothAdapter == null) {
527 Toast.makeText(this, "Bluetooth is not available", Toast.LENGTH_LONG).show();
531 if (!mBluetoothAdapter.isEnabled()) {
532 Intent enableIntent = new Intent(BluetoothAdapter.ACTION_REQUEST_ENABLE);
533 startActivityForResult(enableIntent, AltosDroid.REQUEST_ENABLE_BT);
539 private boolean check_usb() {
540 UsbDevice device = AltosUsb.find_device(this, AltosLib.product_basestation);
542 if (device != null) {
543 Intent i = new Intent(this, AltosDroid.class);
544 PendingIntent pi = PendingIntent.getActivity(this, 0, new Intent("hello world", null, this, AltosDroid.class), 0);
546 if (AltosUsb.request_permission(this, device, pi)) {
549 start_with_usb = true;
553 start_with_usb = false;
558 private void noticeIntent(Intent intent) {
560 /* Ok, this is pretty convenient.
562 * When a USB device is plugged in, and our 'hotplug'
563 * intent registration fires, we get an Intent with
566 * When we start up and see a usb device and request
567 * permission to access it, that queues a
568 * PendingIntent, which has the EXTRA_DEVICE added in,
569 * along with the EXTRA_PERMISSION_GRANTED field as
572 * So, in both cases, we get the device name using the
573 * same call. We check to see if access was granted,
574 * in which case we ignore the device field and do our
575 * usual startup thing.
578 UsbDevice device = (UsbDevice) intent.getParcelableExtra(UsbManager.EXTRA_DEVICE);
579 boolean granted = intent.getBooleanExtra(UsbManager.EXTRA_PERMISSION_GRANTED, true);
581 AltosDebug.debug("intent %s device %s granted %s", intent, device, granted);
586 if (device != null) {
587 AltosDebug.debug("intent has usb device " + device.toString());
591 /* 'granted' is only false if this intent came
592 * from the request_permission call and
593 * permission was denied. In which case, we
594 * don't want to loop forever...
597 AltosDebug.debug("check for a USB device at startup");
601 AltosDebug.debug("Starting by looking for bluetooth devices");
602 if (ensureBluetooth())
609 public void onStart() {
611 AltosDebug.debug("++ ON START ++");
613 noticeIntent(getIntent());
615 // Start Telemetry Service
616 String action = start_with_usb ? ACTION_USB : ACTION_BLUETOOTH;
618 startService(new Intent(action, null, AltosDroid.this, TelemetryService.class));
622 if (mAltosVoice == null)
623 mAltosVoice = new AltosVoice(this);
628 public void onNewIntent(Intent intent) {
629 super.onNewIntent(intent);
630 AltosDebug.debug("onNewIntent");
631 noticeIntent(intent);
635 public void onResume() {
637 AltosDebug.debug("+ ON RESUME +");
641 public void onPause() {
643 AltosDebug.debug("- ON PAUSE -");
647 public void onStop() {
649 AltosDebug.debug("-- ON STOP --");
652 if (mAltosVoice != null) {
659 public void onDestroy() {
661 AltosDebug.debug("--- ON DESTROY ---");
663 if (mAltosVoice != null) mAltosVoice.stop();
667 protected void onActivityResult(int requestCode, int resultCode, Intent data) {
668 AltosDebug.debug("onActivityResult " + resultCode);
669 switch (requestCode) {
670 case REQUEST_CONNECT_DEVICE:
671 // When DeviceListActivity returns with a device to connect to
672 if (resultCode == Activity.RESULT_OK) {
676 case REQUEST_ENABLE_BT:
677 // When the request to enable Bluetooth returns
678 if (resultCode == Activity.RESULT_OK) {
679 // Bluetooth is now enabled, so set up a chat session
682 // User did not enable Bluetooth or an error occured
683 AltosDebug.error("BT not enabled");
684 stopService(new Intent(AltosDroid.this, TelemetryService.class));
685 Toast.makeText(this, R.string.bt_not_enabled, Toast.LENGTH_SHORT).show();
689 case REQUEST_MAP_TYPE:
690 if (resultCode == Activity.RESULT_OK)
696 private void connectUsb(UsbDevice device) {
697 if (mService == null)
698 pending_usb_device = device;
700 // Attempt to connect to the device
702 mService.send(Message.obtain(null, TelemetryService.MSG_OPEN_USB, device));
703 AltosDebug.debug("Sent OPEN_USB message");
704 } catch (RemoteException e) {
705 AltosDebug.debug("connect device message failed");
710 private void connectDevice(Intent data) {
711 // Attempt to connect to the device
713 String address = data.getExtras().getString(DeviceListActivity.EXTRA_DEVICE_ADDRESS);
714 String name = data.getExtras().getString(DeviceListActivity.EXTRA_DEVICE_NAME);
716 AltosDebug.debug("Connecting to " + address + " " + name);
717 DeviceAddress a = new DeviceAddress(address, name);
718 mService.send(Message.obtain(null, TelemetryService.MSG_CONNECT, a));
719 AltosDebug.debug("Sent connecting message");
720 } catch (RemoteException e) {
721 AltosDebug.debug("connect device message failed");
725 private void disconnectDevice() {
727 mService.send(Message.obtain(null, TelemetryService.MSG_DISCONNECT, null));
728 } catch (RemoteException e) {
732 private void set_map_type(Intent data) {
733 int type = data.getIntExtra(MapTypeActivity.EXTRA_MAP_TYPE, -1);
735 AltosDebug.debug("intent set_map_type %d\n", type);
738 for (AltosDroidTab mTab : mTabs)
739 mTab.set_map_type(map_type);
744 public boolean onCreateOptionsMenu(Menu menu) {
745 MenuInflater inflater = getMenuInflater();
746 inflater.inflate(R.menu.option_menu, menu);
750 void setFrequency(double freq) {
752 mService.send(Message.obtain(null, TelemetryService.MSG_SETFREQUENCY, freq));
753 } catch (RemoteException e) {
757 void setFrequency(String freq) {
759 setFrequency (AltosParse.parse_double_net(freq.substring(11, 17)));
760 } catch (ParseException e) {
764 void setBaud(int baud) {
766 mService.send(Message.obtain(null, TelemetryService.MSG_SETBAUD, baud));
767 } catch (RemoteException e) {
771 void setBaud(String baud) {
773 int value = Integer.parseInt(baud);
774 int rate = AltosLib.ao_telemetry_rate_38400;
777 rate = AltosLib.ao_telemetry_rate_2400;
780 rate = AltosLib.ao_telemetry_rate_9600;
783 rate = AltosLib.ao_telemetry_rate_38400;
787 } catch (NumberFormatException e) {
791 void select_tracker(int serial) {
793 for (i = 0; i < serials.length; i++)
794 if (serials[i] == serial)
796 if (i == serials.length)
799 AltosDebug.debug("Switching to serial %d\n", serial);
800 current_serial = serial;
804 void delete_track(int serial) {
806 mService.send(Message.obtain(null, TelemetryService.MSG_DELETE_SERIAL, (Integer) serial));
807 } catch (Exception ex) {
812 public boolean onOptionsItemSelected(MenuItem item) {
813 Intent serverIntent = null;
814 switch (item.getItemId()) {
815 case R.id.connect_scan:
816 if (ensureBluetooth()) {
817 // Launch the DeviceListActivity to see devices and do scan
818 serverIntent = new Intent(this, DeviceListActivity.class);
819 startActivityForResult(serverIntent, REQUEST_CONNECT_DEVICE);
822 case R.id.disconnect:
823 /* Disconnect the device
828 AltosDebug.debug("R.id.quit");
832 case R.id.select_freq:
833 // Set the TBT radio frequency
835 final String[] frequencies = {
836 "Channel 0 (434.550MHz)",
837 "Channel 1 (434.650MHz)",
838 "Channel 2 (434.750MHz)",
839 "Channel 3 (434.850MHz)",
840 "Channel 4 (434.950MHz)",
841 "Channel 5 (435.050MHz)",
842 "Channel 6 (435.150MHz)",
843 "Channel 7 (435.250MHz)",
844 "Channel 8 (435.350MHz)",
845 "Channel 9 (435.450MHz)"
848 AlertDialog.Builder builder_freq = new AlertDialog.Builder(this);
849 builder_freq.setTitle("Pick a frequency");
850 builder_freq.setItems(frequencies,
851 new DialogInterface.OnClickListener() {
852 public void onClick(DialogInterface dialog, int item) {
853 setFrequency(frequencies[item]);
856 AlertDialog alert_freq = builder_freq.create();
859 case R.id.select_rate:
860 // Set the TBT baud rate
862 final String[] rates = {
868 AlertDialog.Builder builder_rate = new AlertDialog.Builder(this);
869 builder_rate.setTitle("Pick a baud rate");
870 builder_rate.setItems(rates,
871 new DialogInterface.OnClickListener() {
872 public void onClick(DialogInterface dialog, int item) {
873 setBaud(rates[item]);
876 AlertDialog alert_rate = builder_rate.create();
879 case R.id.change_units:
880 boolean imperial = AltosPreferences.imperial_units();
881 AltosPreferences.set_imperial_units(!imperial);
883 case R.id.preload_maps:
884 serverIntent = new Intent(this, PreloadMapActivity.class);
885 startActivityForResult(serverIntent, REQUEST_PRELOAD_MAPS);
888 serverIntent = new Intent(this, MapTypeActivity.class);
889 startActivityForResult(serverIntent, REQUEST_MAP_TYPE);
891 case R.id.select_tracker:
892 if (serials != null) {
893 String[] trackers = new String[serials.length];
894 for (int i = 0; i < serials.length; i++)
895 trackers[i] = String.format("%d", serials[i]);
896 AlertDialog.Builder builder_serial = new AlertDialog.Builder(this);
897 builder_serial.setTitle("Select a tracker");
898 builder_serial.setItems(trackers,
899 new DialogInterface.OnClickListener() {
900 public void onClick(DialogInterface dialog, int item) {
901 select_tracker(serials[item]);
904 AlertDialog alert_serial = builder_serial.create();
909 case R.id.delete_track:
910 if (serials != null) {
911 String[] trackers = new String[serials.length];
912 for (int i = 0; i < serials.length; i++)
913 trackers[i] = String.format("%d", serials[i]);
914 AlertDialog.Builder builder_serial = new AlertDialog.Builder(this);
915 builder_serial.setTitle("Delete a track");
916 builder_serial.setItems(trackers,
917 new DialogInterface.OnClickListener() {
918 public void onClick(DialogInterface dialog, int item) {
919 delete_track(serials[item]);
922 AlertDialog alert_serial = builder_serial.create();