git.gag.com Git - fw/altos/blob - altosdroid/src/org/altusmetrum/AltosDroid/AltosDroid.java

   1 /*
   2  * Copyright © 2012 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 android.app.Activity;
  22 import android.bluetooth.BluetoothAdapter;
  23 import android.bluetooth.BluetoothDevice;
  24 import android.content.Intent;
  25 import android.content.Context;
  26 import android.content.ComponentName;
  27 import android.content.ServiceConnection;
  28 import android.os.IBinder;
  29 import android.os.Bundle;
  30 import android.os.Handler;
  31 import android.os.Message;
  32 import android.os.Messenger;
  33 import android.os.RemoteException;
  34 import android.speech.tts.TextToSpeech;
  35 import android.speech.tts.TextToSpeech.OnInitListener;
  36 import android.text.method.ScrollingMovementMethod;
  37 import android.util.Log;
  38 //import android.view.KeyEvent;
  39 import android.view.Menu;
  40 import android.view.MenuInflater;
  41 import android.view.MenuItem;
  42 //import android.view.View;
  43 import android.view.Window;
  44 //import android.view.View.OnClickListener;
  45 //import android.view.inputmethod.EditorInfo;
  46 //import android.widget.Button;
  47 //import android.widget.EditText;
  48 import android.widget.TextView;
  49 import android.widget.Toast;
  50 import org.altusmetrum.AltosDroid.R;
  51
  52 /**
  53  * This is the main Activity that displays the current chat session.
  54  */
  55 public class AltosDroid extends Activity {
  56         // Debugging
  57         private static final String TAG = "AltosDroid";
  58         private static final boolean D = true;
  59
  60         // Message types sent from the TelemetryService Handler
  61         public static final int MSG_STATE_CHANGE    = 1;
  62         public static final int MSG_DEVNAME         = 2;
  63         public static final int MSG_INCOMING_TELEM  = 3;
  64         public static final int MSG_TOAST           = 4;
  65
  66         // Key names received from the TelemetryService Handler
  67         public static final String KEY_DEVNAME = "key_devname";
  68         public static final String KEY_TOAST   = "key_toast";
  69
  70         // Intent request codes
  71         private static final int REQUEST_CONNECT_DEVICE = 1;
  72         private static final int REQUEST_ENABLE_BT      = 2;
  73
  74         // Layout Views
  75         private TextView mTitle;
  76         private TextView mSerialView;
  77         //private EditText mOutEditText;
  78         //private Button mSendButton;
  79
  80         private boolean mIsBound;
  81         Messenger mService = null;
  82         final Messenger mMessenger = new Messenger(new IncomingHandler(this));
  83
  84         // Name of the connected device
  85         private String mConnectedDeviceName = null;
  86         // Local Bluetooth adapter
  87         private BluetoothAdapter mBluetoothAdapter = null;
  88
  89         private TextToSpeech tts;
  90         private boolean tts_enabled = false;
  91
  92         // The Handler that gets information back from the Telemetry Service
  93         static class IncomingHandler extends Handler {
  94                 private final WeakReference<AltosDroid> mAltosDroid;
  95                 IncomingHandler(AltosDroid ad) { mAltosDroid = new WeakReference<AltosDroid>(ad); }
  96
  97                 @Override
  98                 public void handleMessage(Message msg) {
  99                         AltosDroid ad = mAltosDroid.get();
 100                         switch (msg.what) {
 101                         case MSG_STATE_CHANGE:
 102                                 if(D) Log.i(TAG, "MSG_STATE_CHANGE: " + msg.arg1);
 103                                 switch (msg.arg1) {
 104                                 case TelemetryService.STATE_CONNECTED:
 105                                         ad.mTitle.setText(R.string.title_connected_to);
 106                                         ad.mTitle.append(ad.mConnectedDeviceName);
 107                                         ad.mSerialView.setText("");
 108                                         break;
 109                                 case TelemetryService.STATE_CONNECTING:
 110                                         ad.mTitle.setText(R.string.title_connecting);
 111                                         break;
 112                                 case TelemetryService.STATE_READY:
 113                                 case TelemetryService.STATE_NONE:
 114                                         ad.mTitle.setText(R.string.title_not_connected);
 115                                         break;
 116                                 }
 117                                 break;
 118                         case MSG_INCOMING_TELEM:
 119                                 byte[] buf = (byte[]) msg.obj;
 120                                 // construct a string from the buffer
 121                                 String telem = new String(buf);
 122                                 ad.mSerialView.append(telem);
 123                                 break;
 124                         case MSG_DEVNAME:
 125                                 // save the connected device's name
 126                                 ad.mConnectedDeviceName = msg.getData().getString(KEY_DEVNAME);
 127                                 Toast.makeText(ad.getApplicationContext(), "Connected to "
 128                                                         + ad.mConnectedDeviceName, Toast.LENGTH_SHORT).show();
 129                                 break;
 130                         case MSG_TOAST:
 131                                 Toast.makeText(
 132                                                 ad.getApplicationContext(),
 133                                                 msg.getData().getString(KEY_TOAST),
 134                                                 Toast.LENGTH_SHORT).show();
 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
 160         @Override
 161         public void onCreate(Bundle savedInstanceState) {
 162                 super.onCreate(savedInstanceState);
 163                 if(D) Log.e(TAG, "+++ ON CREATE +++");
 164
 165                 // Set up the window layout
 166                 requestWindowFeature(Window.FEATURE_CUSTOM_TITLE);
 167                 setContentView(R.layout.main);
 168                 getWindow().setFeatureInt(Window.FEATURE_CUSTOM_TITLE, R.layout.custom_title);
 169
 170                 // Set up the custom title
 171                 mTitle = (TextView) findViewById(R.id.title_left_text);
 172                 mTitle.setText(R.string.app_name);
 173                 mTitle = (TextView) findViewById(R.id.title_right_text);
 174
 175                 mSerialView = (TextView) findViewById(R.id.in);
 176                 mSerialView.setMovementMethod(new ScrollingMovementMethod());
 177                 mSerialView.setClickable(false);
 178                 mSerialView.setLongClickable(false);
 179
 180                 // Get local Bluetooth adapter
 181                 mBluetoothAdapter = BluetoothAdapter.getDefaultAdapter();
 182
 183                 // If the adapter is null, then Bluetooth is not supported
 184                 if (mBluetoothAdapter == null) {
 185                         Toast.makeText(this, "Bluetooth is not available", Toast.LENGTH_LONG).show();
 186                         finish();
 187                         return;
 188                 }
 189
 190                 // Enable Text to Speech
 191                 tts = new TextToSpeech(this, new OnInitListener() {
 192                         public void onInit(int status) {
 193                                 if (status == TextToSpeech.SUCCESS) tts_enabled = true;
 194                                 if (tts_enabled) tts.speak("AltosDroid ready", TextToSpeech.QUEUE_ADD, null );
 195                         }
 196                 });
 197
 198                 // Start Telemetry Service
 199                 startService(new Intent(AltosDroid.this, TelemetryService.class));
 200
 201                 doBindService();
 202         }
 203
 204         @Override
 205         public void onStart() {
 206                 super.onStart();
 207                 if(D) Log.e(TAG, "++ ON START ++");
 208
 209                 if (!mBluetoothAdapter.isEnabled()) {
 210                         Intent enableIntent = new Intent(BluetoothAdapter.ACTION_REQUEST_ENABLE);
 211                         startActivityForResult(enableIntent, REQUEST_ENABLE_BT);
 212                 } else {
 213                         //if (mChatService == null) setupChat();
 214                 }
 215         }
 216
 217         @Override
 218         public synchronized void onResume() {
 219                 super.onResume();
 220                 if(D) Log.e(TAG, "+ ON RESUME +");
 221
 222                 // Performing this check in onResume() covers the case in which BT was
 223                 // not enabled during onStart(), so we were paused to enable it...
 224                 // onResume() will be called when ACTION_REQUEST_ENABLE activity returns.
 225                 //if (mChatService != null) {
 226                         // Only if the state is STATE_NONE, do we know that we haven't started already
 227                         //if (mChatService.getState() == BluetoothChatService.STATE_NONE) {
 228                         // Start the Bluetooth chat services
 229                         //mChatService.start();
 230                         //}
 231                 //}
 232         }
 233
 234         @Override
 235         public synchronized void onPause() {
 236                 super.onPause();
 237                 if(D) Log.e(TAG, "- ON PAUSE -");
 238         }
 239
 240         @Override
 241         public void onStop() {
 242                 super.onStop();
 243                 if(D) Log.e(TAG, "-- ON STOP --");
 244         }
 245
 246         @Override
 247         public void onDestroy() {
 248                 super.onDestroy();
 249
 250                 doUnbindService();
 251
 252                 if (tts != null) tts.shutdown();
 253
 254                 if(D) Log.e(TAG, "--- ON DESTROY ---");
 255         }
 256
 257
 258
 259 /*
 260         private void setupChat() {
 261                 Log.d(TAG, "setupChat()");
 262
 263                 // Initialize the compose field with a listener for the return key
 264                 mOutEditText = (EditText) findViewById(R.id.edit_text_out);
 265                 mOutEditText.setOnEditorActionListener(mWriteListener);
 266
 267                 // Initialize the send button with a listener that for click events
 268                 mSendButton = (Button) findViewById(R.id.button_send);
 269                 mSendButton.setOnClickListener(new OnClickListener() {
 270                         public void onClick(View v) {
 271                                 // Send a message using content of the edit text widget
 272                                 TextView view = (TextView) findViewById(R.id.edit_text_out);
 273                                 String message = view.getText().toString();
 274                                 sendMessage(message);
 275                         }
 276                 });
 277
 278                 // Initialize the BluetoothChatService to perform bluetooth connections
 279                 mChatService = new BluetoothChatService(this, mHandler);
 280
 281                 // Initialize the buffer for outgoing messages
 282                 mOutStringBuffer = new StringBuffer("");
 283         }
 284 */
 285
 286         /**
 287          * Sends a message.
 288          * @param message  A string of text to send.
 289          */
 290         /*
 291         private void sendMessage(String message) {
 292                 // Check that we're actually connected before trying anything
 293                 if (mChatService.getState() != BluetoothChatService.STATE_CONNECTED) {
 294                         Toast.makeText(this, R.string.not_connected, Toast.LENGTH_SHORT).show();
 295                         return;
 296                 }
 297
 298                 // Check that there's actually something to send
 299                 if (message.length() > 0) {
 300                         // Get the message bytes and tell the BluetoothChatService to write
 301                         byte[] send = message.getBytes();
 302                         mChatService.write(send);
 303
 304                         // Reset out string buffer to zero and clear the edit text field
 305                         mOutStringBuffer.setLength(0);
 306                         mOutEditText.setText(mOutStringBuffer);
 307                 }
 308         }
 309
 310
 311         // The action listener for the EditText widget, to listen for the return key
 312         private TextView.OnEditorActionListener mWriteListener =
 313                 new TextView.OnEditorActionListener() {
 314                 public boolean onEditorAction(TextView view, int actionId, KeyEvent event) {
 315                         // If the action is a key-up event on the return key, send the message
 316                         if (actionId == EditorInfo.IME_NULL && event.getAction() == KeyEvent.ACTION_UP) {
 317                                 String message = view.getText().toString();
 318                                 sendMessage(message);
 319                         }
 320                         if(D) Log.i(TAG, "END onEditorAction");
 321                         return true;
 322                 }
 323         };
 324         */
 325
 326         public void onActivityResult(int requestCode, int resultCode, Intent data) {
 327                 if(D) Log.d(TAG, "onActivityResult " + resultCode);
 328                 switch (requestCode) {
 329                 case REQUEST_CONNECT_DEVICE:
 330                         // When DeviceListActivity returns with a device to connect to
 331                         if (resultCode == Activity.RESULT_OK) {
 332                                 connectDevice(data);
 333                         }
 334                         break;
 335                 case REQUEST_ENABLE_BT:
 336                         // When the request to enable Bluetooth returns
 337                         if (resultCode == Activity.RESULT_OK) {
 338                                 // Bluetooth is now enabled, so set up a chat session
 339                                 //setupChat();
 340                         } else {
 341                                 // User did not enable Bluetooth or an error occured
 342                                 Log.d(TAG, "BT not enabled");
 343                                 stopService(new Intent(AltosDroid.this, TelemetryService.class));
 344                                 Toast.makeText(this, R.string.bt_not_enabled, Toast.LENGTH_SHORT).show();
 345                                 finish();
 346                         }
 347                         break;
 348                 }
 349         }
 350
 351         private void connectDevice(Intent data) {
 352                 // Get the device MAC address
 353                 String address = data.getExtras().getString(DeviceListActivity.EXTRA_DEVICE_ADDRESS);
 354                 // Get the BLuetoothDevice object
 355                 BluetoothDevice device = mBluetoothAdapter.getRemoteDevice(address);
 356                 // Attempt to connect to the device
 357                 try {
 358                         //Message msg = Message.obtain(null, TelemetryService.MSG_CONNECT_TELEBT);
 359                         //msg.obj = device;
 360                         //mService.send(msg);
 361                         if (D) Log.i(TAG, "Connecting to " + device.getName());
 362                         mService.send(Message.obtain(null, TelemetryService.MSG_CONNECT, device));
 363                 } catch (RemoteException e) {
 364                         e.printStackTrace();
 365                 }
 366         }
 367
 368         @Override
 369         public boolean onCreateOptionsMenu(Menu menu) {
 370                 MenuInflater inflater = getMenuInflater();
 371                 inflater.inflate(R.menu.option_menu, menu);
 372                 return true;
 373         }
 374
 375         @Override
 376         public boolean onOptionsItemSelected(MenuItem item) {
 377                 Intent serverIntent = null;
 378                 switch (item.getItemId()) {
 379                 case R.id.connect_scan:
 380                         // Launch the DeviceListActivity to see devices and do scan
 381                         serverIntent = new Intent(this, DeviceListActivity.class);
 382                         startActivityForResult(serverIntent, REQUEST_CONNECT_DEVICE);
 383                         return true;
 384                 }
 385                 return false;
 386         }
 387
 388
 389         void doBindService() {
 390                 bindService(new Intent(this, TelemetryService.class), mConnection, Context.BIND_AUTO_CREATE);
 391                 mIsBound = true;
 392         }
 393
 394         void doUnbindService() {
 395                 if (mIsBound) {
 396                         // If we have received the service, and hence registered with it, then now is the time to unregister.
 397                         if (mService != null) {
 398                                 try {
 399                                         Message msg = Message.obtain(null, TelemetryService.MSG_UNREGISTER_CLIENT);
 400                                         msg.replyTo = mMessenger;
 401                                         mService.send(msg);
 402                                 } catch (RemoteException e) {
 403                                         // There is nothing special we need to do if the service has crashed.
 404                                 }
 405                         }
 406                         // Detach our existing connection.
 407                         unbindService(mConnection);
 408                         mIsBound = false;
 409                 }
 410         }
 411
 412 }