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