2 * Copyright © 2012 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 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;
53 * This is the main Activity that displays the current chat session.
55 public class AltosDroid extends Activity {
57 private static final String TAG = "AltosDroid";
58 private static final boolean D = true;
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;
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";
70 // Intent request codes
71 private static final int REQUEST_CONNECT_DEVICE = 1;
72 private static final int REQUEST_ENABLE_BT = 2;
75 private TextView mTitle;
76 private TextView mSerialView;
77 //private EditText mOutEditText;
78 //private Button mSendButton;
80 private boolean mIsBound;
81 Messenger mService = null;
82 final Messenger mMessenger = new Messenger(new IncomingHandler(this));
84 // Name of the connected device
85 private String mConnectedDeviceName = null;
86 // Local Bluetooth adapter
87 private BluetoothAdapter mBluetoothAdapter = null;
89 private TextToSpeech tts;
90 private boolean tts_enabled = false;
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); }
98 public void handleMessage(Message msg) {
99 AltosDroid ad = mAltosDroid.get();
101 case MSG_STATE_CHANGE:
102 if(D) Log.i(TAG, "MSG_STATE_CHANGE: " + 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("");
109 case TelemetryService.STATE_CONNECTING:
110 ad.mTitle.setText(R.string.title_connecting);
112 case TelemetryService.STATE_READY:
113 case TelemetryService.STATE_NONE:
114 ad.mTitle.setText(R.string.title_not_connected);
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);
125 // save the connected device's name
126 ad.mConnectedDeviceName = (String) msg.obj;
127 if (ad.mConnectedDeviceName != null)
128 Toast.makeText(ad.getApplicationContext(), "Connected to "
129 + ad.mConnectedDeviceName, Toast.LENGTH_SHORT).show();
133 ad.getApplicationContext(),
134 msg.getData().getString(KEY_TOAST),
135 Toast.LENGTH_SHORT).show();
142 private ServiceConnection mConnection = new ServiceConnection() {
143 public void onServiceConnected(ComponentName className, IBinder service) {
144 mService = new Messenger(service);
146 Message msg = Message.obtain(null, TelemetryService.MSG_REGISTER_CLIENT);
147 msg.replyTo = mMessenger;
149 } catch (RemoteException e) {
150 // In this case the service has crashed before we could even do anything with it
154 public void onServiceDisconnected(ComponentName className) {
155 // This is called when the connection with the service has been unexpectedly disconnected - process crashed.
162 public void onCreate(Bundle savedInstanceState) {
163 super.onCreate(savedInstanceState);
164 if(D) Log.e(TAG, "+++ ON CREATE +++");
166 // Set up the window layout
167 requestWindowFeature(Window.FEATURE_CUSTOM_TITLE);
168 setContentView(R.layout.main);
169 getWindow().setFeatureInt(Window.FEATURE_CUSTOM_TITLE, R.layout.custom_title);
171 // Set up the custom title
172 mTitle = (TextView) findViewById(R.id.title_left_text);
173 mTitle.setText(R.string.app_name);
174 mTitle = (TextView) findViewById(R.id.title_right_text);
176 mSerialView = (TextView) findViewById(R.id.in);
177 mSerialView.setMovementMethod(new ScrollingMovementMethod());
178 mSerialView.setClickable(false);
179 mSerialView.setLongClickable(false);
181 // Get local Bluetooth adapter
182 mBluetoothAdapter = BluetoothAdapter.getDefaultAdapter();
184 // If the adapter is null, then Bluetooth is not supported
185 if (mBluetoothAdapter == null) {
186 Toast.makeText(this, "Bluetooth is not available", Toast.LENGTH_LONG).show();
191 // Enable Text to Speech
192 tts = new TextToSpeech(this, new OnInitListener() {
193 public void onInit(int status) {
194 if (status == TextToSpeech.SUCCESS) tts_enabled = true;
195 if (tts_enabled) tts.speak("AltosDroid ready", TextToSpeech.QUEUE_ADD, null );
199 // Start Telemetry Service
200 startService(new Intent(AltosDroid.this, TelemetryService.class));
206 public void onStart() {
208 if(D) Log.e(TAG, "++ ON START ++");
210 if (!mBluetoothAdapter.isEnabled()) {
211 Intent enableIntent = new Intent(BluetoothAdapter.ACTION_REQUEST_ENABLE);
212 startActivityForResult(enableIntent, REQUEST_ENABLE_BT);
214 //if (mChatService == null) setupChat();
219 public synchronized void onResume() {
221 if(D) Log.e(TAG, "+ ON RESUME +");
223 // Performing this check in onResume() covers the case in which BT was
224 // not enabled during onStart(), so we were paused to enable it...
225 // onResume() will be called when ACTION_REQUEST_ENABLE activity returns.
226 //if (mChatService != null) {
227 // Only if the state is STATE_NONE, do we know that we haven't started already
228 //if (mChatService.getState() == BluetoothChatService.STATE_NONE) {
229 // Start the Bluetooth chat services
230 //mChatService.start();
236 public synchronized void onPause() {
238 if(D) Log.e(TAG, "- ON PAUSE -");
242 public void onStop() {
244 if(D) Log.e(TAG, "-- ON STOP --");
248 public void onDestroy() {
253 if (tts != null) tts.shutdown();
255 if(D) Log.e(TAG, "--- ON DESTROY ---");
261 private void setupChat() {
262 Log.d(TAG, "setupChat()");
264 // Initialize the compose field with a listener for the return key
265 mOutEditText = (EditText) findViewById(R.id.edit_text_out);
266 mOutEditText.setOnEditorActionListener(mWriteListener);
268 // Initialize the send button with a listener that for click events
269 mSendButton = (Button) findViewById(R.id.button_send);
270 mSendButton.setOnClickListener(new OnClickListener() {
271 public void onClick(View v) {
272 // Send a message using content of the edit text widget
273 TextView view = (TextView) findViewById(R.id.edit_text_out);
274 String message = view.getText().toString();
275 sendMessage(message);
279 // Initialize the BluetoothChatService to perform bluetooth connections
280 mChatService = new BluetoothChatService(this, mHandler);
282 // Initialize the buffer for outgoing messages
283 mOutStringBuffer = new StringBuffer("");
289 * @param message A string of text to send.
292 private void sendMessage(String message) {
293 // Check that we're actually connected before trying anything
294 if (mChatService.getState() != BluetoothChatService.STATE_CONNECTED) {
295 Toast.makeText(this, R.string.not_connected, Toast.LENGTH_SHORT).show();
299 // Check that there's actually something to send
300 if (message.length() > 0) {
301 // Get the message bytes and tell the BluetoothChatService to write
302 byte[] send = message.getBytes();
303 mChatService.write(send);
305 // Reset out string buffer to zero and clear the edit text field
306 mOutStringBuffer.setLength(0);
307 mOutEditText.setText(mOutStringBuffer);
312 // The action listener for the EditText widget, to listen for the return key
313 private TextView.OnEditorActionListener mWriteListener =
314 new TextView.OnEditorActionListener() {
315 public boolean onEditorAction(TextView view, int actionId, KeyEvent event) {
316 // If the action is a key-up event on the return key, send the message
317 if (actionId == EditorInfo.IME_NULL && event.getAction() == KeyEvent.ACTION_UP) {
318 String message = view.getText().toString();
319 sendMessage(message);
321 if(D) Log.i(TAG, "END onEditorAction");
327 public void onActivityResult(int requestCode, int resultCode, Intent data) {
328 if(D) Log.d(TAG, "onActivityResult " + resultCode);
329 switch (requestCode) {
330 case REQUEST_CONNECT_DEVICE:
331 // When DeviceListActivity returns with a device to connect to
332 if (resultCode == Activity.RESULT_OK) {
336 case REQUEST_ENABLE_BT:
337 // When the request to enable Bluetooth returns
338 if (resultCode == Activity.RESULT_OK) {
339 // Bluetooth is now enabled, so set up a chat session
342 // User did not enable Bluetooth or an error occured
343 Log.d(TAG, "BT not enabled");
344 stopService(new Intent(AltosDroid.this, TelemetryService.class));
345 Toast.makeText(this, R.string.bt_not_enabled, Toast.LENGTH_SHORT).show();
352 private void connectDevice(Intent data) {
353 // Get the device MAC address
354 String address = data.getExtras().getString(DeviceListActivity.EXTRA_DEVICE_ADDRESS);
355 // Get the BLuetoothDevice object
356 BluetoothDevice device = mBluetoothAdapter.getRemoteDevice(address);
357 // Attempt to connect to the device
359 //Message msg = Message.obtain(null, TelemetryService.MSG_CONNECT_TELEBT);
361 //mService.send(msg);
362 if (D) Log.i(TAG, "Connecting to " + device.getName());
363 mService.send(Message.obtain(null, TelemetryService.MSG_CONNECT, device));
364 } catch (RemoteException e) {
370 public boolean onCreateOptionsMenu(Menu menu) {
371 MenuInflater inflater = getMenuInflater();
372 inflater.inflate(R.menu.option_menu, menu);
377 public boolean onOptionsItemSelected(MenuItem item) {
378 Intent serverIntent = null;
379 switch (item.getItemId()) {
380 case R.id.connect_scan:
381 // Launch the DeviceListActivity to see devices and do scan
382 serverIntent = new Intent(this, DeviceListActivity.class);
383 startActivityForResult(serverIntent, REQUEST_CONNECT_DEVICE);
390 void doBindService() {
391 bindService(new Intent(this, TelemetryService.class), mConnection, Context.BIND_AUTO_CREATE);
395 void doUnbindService() {
397 // If we have received the service, and hence registered with it, then now is the time to unregister.
398 if (mService != null) {
400 Message msg = Message.obtain(null, TelemetryService.MSG_UNREGISTER_CLIENT);
401 msg.replyTo = mMessenger;
403 } catch (RemoteException e) {
404 // There is nothing special we need to do if the service has crashed.
407 // Detach our existing connection.
408 unbindService(mConnection);