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_TOAST           = 3;
  64         public static final int MSG_DEVCONFIG       = 4;
  65         public static final int MSG_TELEMETRY       = 5;
  66
  67         // Intent request codes
  68         private static final int REQUEST_CONNECT_DEVICE = 1;
  69         private static final int REQUEST_ENABLE_BT      = 2;
  70
  71         // Layout Views
  72         private TextView mTitle;
  73         private TextView mSerialView;
  74         //private EditText mOutEditText;
  75         //private Button mSendButton;
  76
  77         private boolean mIsBound;
  78         Messenger mService = null;
  79         final Messenger mMessenger = new Messenger(new IncomingHandler(this));
  80
  81         // Name of the connected device
  82         private String mConnectedDeviceName = null;
  83         // Local Bluetooth adapter
  84         private BluetoothAdapter mBluetoothAdapter = null;
  85
  86         private TextToSpeech tts;
  87         private boolean tts_enabled = false;
  88
  89         // The Handler that gets information back from the Telemetry Service
  90         static class IncomingHandler extends Handler {
  91                 private final WeakReference<AltosDroid> mAltosDroid;
  92                 IncomingHandler(AltosDroid ad) { mAltosDroid = new WeakReference<AltosDroid>(ad); }
  93
  94                 @Override
  95                 public void handleMessage(Message msg) {
  96                         AltosDroid ad = mAltosDroid.get();
  97                         switch (msg.what) {
  98                         case MSG_STATE_CHANGE:
  99                                 if(D) Log.i(TAG, "MSG_STATE_CHANGE: " + msg.arg1);
 100                                 switch (msg.arg1) {
 101                                 case TelemetryService.STATE_CONNECTED:
 102                                         ad.mTitle.setText(R.string.title_connected_to);
 103                                         ad.mTitle.append(ad.mConnectedDeviceName);
 104                                         ad.mSerialView.setText("");
 105                                         break;
 106                                 case TelemetryService.STATE_CONNECTING:
 107                                         ad.mTitle.setText(R.string.title_connecting);
 108                                         break;
 109                                 case TelemetryService.STATE_READY:
 110                                 case TelemetryService.STATE_NONE:
 111                                         ad.mTitle.setText(R.string.title_not_connected);
 112                                         break;
 113                                 }
 114                                 break;
 115                         case MSG_DEVCONFIG:
 116                         case MSG_TELEMETRY:
 117                                 //byte[] buf = (byte[]) msg.obj;
 118                                 // construct a string from the buffer
 119                                 //String telem = new String(buf);
 120                                 //ad.mSerialView.append(telem);
 121                                 break;
 122                         case MSG_DEVNAME:
 123                                 // save the connected device's name
 124                                 ad.mConnectedDeviceName = (String) msg.obj;
 125                                 if (ad.mConnectedDeviceName != null)
 126                                         Toast.makeText(ad.getApplicationContext(), "Connected to "
 127                                                         + ad.mConnectedDeviceName, Toast.LENGTH_SHORT).show();
 128                                 break;
 129                         case MSG_TOAST:
 130                                 Toast.makeText(
 131                                                 ad.getApplicationContext(),
 132                                                 (String) msg.obj,
 133                                                 Toast.LENGTH_SHORT).show();
 134                                 break;
 135                         }
 136                 }
 137         };
 138
 139
 140         private ServiceConnection mConnection = new ServiceConnection() {
 141                 public void onServiceConnected(ComponentName className, IBinder service) {
 142                         mService = new Messenger(service);
 143                         try {
 144                                 Message msg = Message.obtain(null, TelemetryService.MSG_REGISTER_CLIENT);
 145                                 msg.replyTo = mMessenger;
 146                                 mService.send(msg);
 147                         } catch (RemoteException e) {
 148                                 // In this case the service has crashed before we could even do anything with it
 149                         }
 150                 }
 151
 152                 public void onServiceDisconnected(ComponentName className) {
 153                         // This is called when the connection with the service has been unexpectedly disconnected - process crashed.
 154                         mService = null;
 155                 }
 156         };
 157
 158
 159         @Override
 160         public void onCreate(Bundle savedInstanceState) {
 161                 super.onCreate(savedInstanceState);
 162                 if(D) Log.e(TAG, "+++ ON CREATE +++");
 163
 164                 // Set up the window layout
 165                 requestWindowFeature(Window.FEATURE_CUSTOM_TITLE);
 166                 setContentView(R.layout.main);
 167                 getWindow().setFeatureInt(Window.FEATURE_CUSTOM_TITLE, R.layout.custom_title);
 168
 169                 // Set up the custom title
 170                 mTitle = (TextView) findViewById(R.id.title_left_text);
 171                 mTitle.setText(R.string.app_name);
 172                 mTitle = (TextView) findViewById(R.id.title_right_text);
 173
 174                 mSerialView = (TextView) findViewById(R.id.in);
 175                 mSerialView.setMovementMethod(new ScrollingMovementMethod());
 176                 mSerialView.setClickable(false);
 177                 mSerialView.setLongClickable(false);
 178
 179                 // Get local Bluetooth adapter
 180                 mBluetoothAdapter = BluetoothAdapter.getDefaultAdapter();
 181
 182                 // If the adapter is null, then Bluetooth is not supported
 183                 if (mBluetoothAdapter == null) {
 184                         Toast.makeText(this, "Bluetooth is not available", Toast.LENGTH_LONG).show();
 185                         finish();
 186                         return;
 187                 }
 188
 189                 // Enable Text to Speech
 190                 tts = new TextToSpeech(this, new OnInitListener() {
 191                         public void onInit(int status) {
 192                                 if (status == TextToSpeech.SUCCESS) tts_enabled = true;
 193                                 if (tts_enabled) tts.speak("AltosDroid ready", TextToSpeech.QUEUE_ADD, null );
 194                         }
 195                 });
 196
 197                 // Start Telemetry Service
 198                 startService(new Intent(AltosDroid.this, TelemetryService.class));
 199
 200                 doBindService();
 201         }
 202
 203         @Override
 204         public void onStart() {
 205                 super.onStart();
 206                 if(D) Log.e(TAG, "++ ON START ++");
 207
 208                 if (!mBluetoothAdapter.isEnabled()) {
 209                         Intent enableIntent = new Intent(BluetoothAdapter.ACTION_REQUEST_ENABLE);
 210                         startActivityForResult(enableIntent, REQUEST_ENABLE_BT);
 211                 } else {
 212                         //if (mChatService == null) setupChat();
 213                 }
 214         }
 215
 216         @Override
 217         public synchronized void onResume() {
 218                 super.onResume();
 219                 if(D) Log.e(TAG, "+ ON RESUME +");
 220
 221                 // Performing this check in onResume() covers the case in which BT was
 222                 // not enabled during onStart(), so we were paused to enable it...
 223                 // onResume() will be called when ACTION_REQUEST_ENABLE activity returns.
 224                 //if (mChatService != null) {
 225                         // Only if the state is STATE_NONE, do we know that we haven't started already
 226                         //if (mChatService.getState() == BluetoothChatService.STATE_NONE) {
 227                         // Start the Bluetooth chat services
 228                         //mChatService.start();
 229                         //}
 230                 //}
 231         }
 232
 233         @Override
 234         public synchronized void onPause() {
 235                 super.onPause();
 236                 if(D) Log.e(TAG, "- ON PAUSE -");
 237         }
 238
 239         @Override
 240         public void onStop() {
 241                 super.onStop();
 242                 if(D) Log.e(TAG, "-- ON STOP --");
 243         }
 244
 245         @Override
 246         public void onDestroy() {
 247                 super.onDestroy();
 248
 249                 doUnbindService();
 250
 251                 if (tts != null) tts.shutdown();
 252
 253                 if(D) Log.e(TAG, "--- ON DESTROY ---");
 254         }
 255
 256
 257
 258 /*
 259         private void setupChat() {
 260                 Log.d(TAG, "setupChat()");
 261
 262                 // Initialize the compose field with a listener for the return key
 263                 mOutEditText = (EditText) findViewById(R.id.edit_text_out);
 264                 mOutEditText.setOnEditorActionListener(mWriteListener);
 265
 266                 // Initialize the send button with a listener that for click events
 267                 mSendButton = (Button) findViewById(R.id.button_send);
 268                 mSendButton.setOnClickListener(new OnClickListener() {
 269                         public void onClick(View v) {
 270                                 // Send a message using content of the edit text widget
 271                                 TextView view = (TextView) findViewById(R.id.edit_text_out);
 272                                 String message = view.getText().toString();
 273                                 sendMessage(message);
 274                         }
 275                 });
 276
 277                 // Initialize the BluetoothChatService to perform bluetooth connections
 278                 mChatService = new BluetoothChatService(this, mHandler);
 279
 280                 // Initialize the buffer for outgoing messages
 281                 mOutStringBuffer = new StringBuffer("");
 282         }
 283 */
 284
 285         /**
 286          * Sends a message.
 287          * @param message  A string of text to send.
 288          */
 289         /*
 290         private void sendMessage(String message) {
 291                 // Check that we're actually connected before trying anything
 292                 if (mChatService.getState() != BluetoothChatService.STATE_CONNECTED) {
 293                         Toast.makeText(this, R.string.not_connected, Toast.LENGTH_SHORT).show();
 294                         return;
 295                 }
 296
 297                 // Check that there's actually something to send
 298                 if (message.length() > 0) {
 299                         // Get the message bytes and tell the BluetoothChatService to write
 300                         byte[] send = message.getBytes();
 301                         mChatService.write(send);
 302
 303                         // Reset out string buffer to zero and clear the edit text field
 304                         mOutStringBuffer.setLength(0);
 305                         mOutEditText.setText(mOutStringBuffer);
 306                 }
 307         }
 308
 309
 310         // The action listener for the EditText widget, to listen for the return key
 311         private TextView.OnEditorActionListener mWriteListener =
 312                 new TextView.OnEditorActionListener() {
 313                 public boolean onEditorAction(TextView view, int actionId, KeyEvent event) {
 314                         // If the action is a key-up event on the return key, send the message
 315                         if (actionId == EditorInfo.IME_NULL && event.getAction() == KeyEvent.ACTION_UP) {
 316                                 String message = view.getText().toString();
 317                                 sendMessage(message);
 318                         }
 319                         if(D) Log.i(TAG, "END onEditorAction");
 320                         return true;
 321                 }
 322         };
 323         */
 324
 325         public void onActivityResult(int requestCode, int resultCode, Intent data) {
 326                 if(D) Log.d(TAG, "onActivityResult " + resultCode);
 327                 switch (requestCode) {
 328                 case REQUEST_CONNECT_DEVICE:
 329                         // When DeviceListActivity returns with a device to connect to
 330                         if (resultCode == Activity.RESULT_OK) {
 331                                 connectDevice(data);
 332                         }
 333                         break;
 334                 case REQUEST_ENABLE_BT:
 335                         // When the request to enable Bluetooth returns
 336                         if (resultCode == Activity.RESULT_OK) {
 337                                 // Bluetooth is now enabled, so set up a chat session
 338                                 //setupChat();
 339                         } else {
 340                                 // User did not enable Bluetooth or an error occured
 341                                 Log.d(TAG, "BT not enabled");
 342                                 stopService(new Intent(AltosDroid.this, TelemetryService.class));
 343                                 Toast.makeText(this, R.string.bt_not_enabled, Toast.LENGTH_SHORT).show();
 344                                 finish();
 345                         }
 346                         break;
 347                 }
 348         }
 349
 350         private void connectDevice(Intent data) {
 351                 // Get the device MAC address
 352                 String address = data.getExtras().getString(DeviceListActivity.EXTRA_DEVICE_ADDRESS);
 353                 // Get the BLuetoothDevice object
 354                 BluetoothDevice device = mBluetoothAdapter.getRemoteDevice(address);
 355                 // Attempt to connect to the device
 356                 try {
 357                         //Message msg = Message.obtain(null, TelemetryService.MSG_CONNECT_TELEBT);
 358                         //msg.obj = device;
 359                         //mService.send(msg);
 360                         if (D) Log.i(TAG, "Connecting to " + device.getName());
 361                         mService.send(Message.obtain(null, TelemetryService.MSG_CONNECT, device));
 362                 } catch (RemoteException e) {
 363                         e.printStackTrace();
 364                 }
 365         }
 366
 367         @Override
 368         public boolean onCreateOptionsMenu(Menu menu) {
 369                 MenuInflater inflater = getMenuInflater();
 370                 inflater.inflate(R.menu.option_menu, menu);
 371                 return true;
 372         }
 373
 374         @Override
 375         public boolean onOptionsItemSelected(MenuItem item) {
 376                 Intent serverIntent = null;
 377                 switch (item.getItemId()) {
 378                 case R.id.connect_scan:
 379                         // Launch the DeviceListActivity to see devices and do scan
 380                         serverIntent = new Intent(this, DeviceListActivity.class);
 381                         startActivityForResult(serverIntent, REQUEST_CONNECT_DEVICE);
 382                         return true;
 383                 }
 384                 return false;
 385         }
 386
 387
 388         void doBindService() {
 389                 bindService(new Intent(this, TelemetryService.class), mConnection, Context.BIND_AUTO_CREATE);
 390                 mIsBound = true;
 391         }
 392
 393         void doUnbindService() {
 394                 if (mIsBound) {
 395                         // If we have received the service, and hence registered with it, then now is the time to unregister.
 396                         if (mService != null) {
 397                                 try {
 398                                         Message msg = Message.obtain(null, TelemetryService.MSG_UNREGISTER_CLIENT);
 399                                         msg.replyTo = mMessenger;
 400                                         mService.send(msg);
 401                                 } catch (RemoteException e) {
 402                                         // There is nothing special we need to do if the service has crashed.
 403                                 }
 404                         }
 405                         // Detach our existing connection.
 406                         unbindService(mConnection);
 407                         mIsBound = false;
 408                 }
 409         }
 410
 411 }