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 android.app.Activity;
21 import android.bluetooth.BluetoothAdapter;
22 import android.bluetooth.BluetoothDevice;
23 import android.content.Intent;
24 import android.os.Bundle;
25 import android.os.Handler;
26 import android.os.Message;
27 import android.text.method.ScrollingMovementMethod;
28 import android.util.Log;
29 import android.view.KeyEvent;
30 import android.view.Menu;
31 import android.view.MenuInflater;
32 import android.view.MenuItem;
33 import android.view.View;
34 import android.view.Window;
35 import android.view.View.OnClickListener;
36 import android.view.inputmethod.EditorInfo;
37 import android.widget.Button;
38 import android.widget.EditText;
39 import android.widget.TextView;
40 import android.widget.Toast;
41 import org.altusmetrum.AltosDroid.R;
42 import org.altusmetrum.AltosLib.*;
45 * This is the main Activity that displays the current chat session.
47 public class AltosDroid extends Activity {
49 private static final String TAG = "AltosDroid";
50 private static final boolean D = true;
52 // Message types sent from the BluetoothChatService Handler
53 public static final int MESSAGE_STATE_CHANGE = 1;
54 public static final int MESSAGE_READ = 2;
55 public static final int MESSAGE_WRITE = 3;
56 public static final int MESSAGE_DEVICE_NAME = 4;
57 public static final int MESSAGE_TOAST = 5;
59 // Key names received from the BluetoothChatService Handler
60 public static final String DEVICE_NAME = "device_name";
61 public static final String TOAST = "toast";
64 private EditText mOutEditText;
65 private Button mSendButton;
67 // String buffer for outgoing messages
68 private StringBuffer mOutStringBuffer;
69 // Member object for the chat services
70 private BluetoothChatService mChatService = null;
71 // Intent request codes
72 private static final int REQUEST_CONNECT_DEVICE = 1;
73 private static final int REQUEST_ENABLE_BT = 2;
76 private TextView mTitle;
77 private TextView mSerialView;
78 // Name of the connected device
79 private String mConnectedDeviceName = null;
80 // Local Bluetooth adapter
81 private BluetoothAdapter mBluetoothAdapter = null;
84 public void onCreate(Bundle savedInstanceState) {
85 super.onCreate(savedInstanceState);
86 if(D) Log.e(TAG, "+++ ON CREATE +++");
88 // Set up the window layout
89 requestWindowFeature(Window.FEATURE_CUSTOM_TITLE);
90 setContentView(R.layout.main);
91 getWindow().setFeatureInt(Window.FEATURE_CUSTOM_TITLE, R.layout.custom_title);
93 // Get local Bluetooth adapter
94 mBluetoothAdapter = BluetoothAdapter.getDefaultAdapter();
95 // Set up the custom title
96 mTitle = (TextView) findViewById(R.id.title_left_text);
97 mTitle.setText(R.string.app_name);
98 mTitle = (TextView) findViewById(R.id.title_right_text);
100 // If the adapter is null, then Bluetooth is not supported
101 if (mBluetoothAdapter == null) {
102 Toast.makeText(this, "Bluetooth is not available", Toast.LENGTH_LONG).show();
109 public void onStart() {
111 if(D) Log.e(TAG, "++ ON START ++");
113 if (!mBluetoothAdapter.isEnabled()) {
114 Intent enableIntent = new Intent(BluetoothAdapter.ACTION_REQUEST_ENABLE);
115 startActivityForResult(enableIntent, REQUEST_ENABLE_BT);
117 if (mChatService == null) setupChat();
122 public synchronized void onResume() {
124 if(D) Log.e(TAG, "+ ON RESUME +");
126 // Performing this check in onResume() covers the case in which BT was
127 // not enabled during onStart(), so we were paused to enable it...
128 // onResume() will be called when ACTION_REQUEST_ENABLE activity returns.
129 if (mChatService != null) {
130 // Only if the state is STATE_NONE, do we know that we haven't started already
131 if (mChatService.getState() == BluetoothChatService.STATE_NONE) {
132 // Start the Bluetooth chat services
133 mChatService.start();
139 public synchronized void onPause() {
141 if(D) Log.e(TAG, "- ON PAUSE -");
145 public void onStop() {
147 if(D) Log.e(TAG, "-- ON STOP --");
151 public void onDestroy() {
153 // Stop the Bluetooth chat services
154 if (mChatService != null) mChatService.stop();
155 if(D) Log.e(TAG, "--- ON DESTROY ---");
160 private void setupChat() {
161 Log.d(TAG, "setupChat()");
163 mSerialView = (TextView) findViewById(R.id.in);
164 mSerialView.setMovementMethod(new ScrollingMovementMethod());
165 mSerialView.setClickable(false);
166 mSerialView.setLongClickable(false);
168 // Initialize the compose field with a listener for the return key
169 mOutEditText = (EditText) findViewById(R.id.edit_text_out);
170 mOutEditText.setOnEditorActionListener(mWriteListener);
172 // Initialize the send button with a listener that for click events
173 mSendButton = (Button) findViewById(R.id.button_send);
174 mSendButton.setOnClickListener(new OnClickListener() {
175 public void onClick(View v) {
176 // Send a message using content of the edit text widget
177 TextView view = (TextView) findViewById(R.id.edit_text_out);
178 String message = view.getText().toString();
179 sendMessage(message);
183 // Initialize the BluetoothChatService to perform bluetooth connections
184 mChatService = new BluetoothChatService(this, mHandler);
186 // Initialize the buffer for outgoing messages
187 mOutStringBuffer = new StringBuffer("");
192 * @param message A string of text to send.
195 private void sendMessage(String message) {
196 // Check that we're actually connected before trying anything
197 if (mChatService.getState() != BluetoothChatService.STATE_CONNECTED) {
198 Toast.makeText(this, R.string.not_connected, Toast.LENGTH_SHORT).show();
202 // Check that there's actually something to send
203 if (message.length() > 0) {
204 // Get the message bytes and tell the BluetoothChatService to write
205 byte[] send = message.getBytes();
206 mChatService.write(send);
208 // Reset out string buffer to zero and clear the edit text field
209 mOutStringBuffer.setLength(0);
210 mOutEditText.setText(mOutStringBuffer);
215 // The action listener for the EditText widget, to listen for the return key
216 private TextView.OnEditorActionListener mWriteListener =
217 new TextView.OnEditorActionListener() {
218 public boolean onEditorAction(TextView view, int actionId, KeyEvent event) {
219 // If the action is a key-up event on the return key, send the message
220 if (actionId == EditorInfo.IME_NULL && event.getAction() == KeyEvent.ACTION_UP) {
221 String message = view.getText().toString();
222 sendMessage(message);
224 if(D) Log.i(TAG, "END onEditorAction");
229 // The Handler that gets information back from the BluetoothChatService
230 private final Handler mHandler = new Handler() {
232 public void handleMessage(Message msg) {
234 case MESSAGE_STATE_CHANGE:
235 if(D) Log.i(TAG, "MESSAGE_STATE_CHANGE: " + msg.arg1);
237 case BluetoothChatService.STATE_CONNECTED:
238 mTitle.setText(R.string.title_connected_to);
239 mTitle.append(mConnectedDeviceName);
240 mSerialView.setText("");
242 case BluetoothChatService.STATE_CONNECTING:
243 mTitle.setText(R.string.title_connecting);
245 case BluetoothChatService.STATE_READY:
246 case BluetoothChatService.STATE_NONE:
247 mTitle.setText(R.string.title_not_connected);
252 byte[] writeBuf = (byte[]) msg.obj;
253 // construct a string from the buffer
254 String writeMessage = new String(writeBuf);
255 mSerialView.append(writeMessage + '\n');
258 byte[] readBuf = (byte[]) msg.obj;
259 // construct a string from the valid bytes in the buffer
260 String readMessage = new String(readBuf, 0, msg.arg1);
261 mSerialView.append(readMessage);
263 case MESSAGE_DEVICE_NAME:
264 // save the connected device's name
265 mConnectedDeviceName = msg.getData().getString(DEVICE_NAME);
266 Toast.makeText(getApplicationContext(), "Connected to "
267 + mConnectedDeviceName, Toast.LENGTH_SHORT).show();
270 Toast.makeText(getApplicationContext(), msg.getData().getString(TOAST),
271 Toast.LENGTH_SHORT).show();
277 public void onActivityResult(int requestCode, int resultCode, Intent data) {
278 if(D) Log.d(TAG, "onActivityResult " + resultCode);
279 switch (requestCode) {
280 case REQUEST_CONNECT_DEVICE:
281 // When DeviceListActivity returns with a device to connect to
282 if (resultCode == Activity.RESULT_OK) {
286 case REQUEST_ENABLE_BT:
287 // When the request to enable Bluetooth returns
288 if (resultCode == Activity.RESULT_OK) {
289 // Bluetooth is now enabled, so set up a chat session
292 // User did not enable Bluetooth or an error occured
293 Log.d(TAG, "BT not enabled");
294 stopService(new Intent(AltosDroid.this, TelemetryService.class));
295 Toast.makeText(this, R.string.bt_not_enabled_leaving, Toast.LENGTH_SHORT).show();
301 private void connectDevice(Intent data) {
302 // Get the device MAC address
303 String address = data.getExtras().getString(DeviceListActivity.EXTRA_DEVICE_ADDRESS);
304 // Get the BLuetoothDevice object
305 BluetoothDevice device = mBluetoothAdapter.getRemoteDevice(address);
306 // Attempt to connect to the device
307 mChatService.connect(device);
311 public boolean onCreateOptionsMenu(Menu menu) {
312 MenuInflater inflater = getMenuInflater();
313 inflater.inflate(R.menu.option_menu, menu);
318 public boolean onOptionsItemSelected(MenuItem item) {
319 Intent serverIntent = null;
320 switch (item.getItemId()) {
321 case R.id.telemetry_service_control:
322 serverIntent = new Intent(this, TelemetryServiceActivities.Controller.class);
323 startActivity(serverIntent);
325 case R.id.telemetry_service_bind:
326 serverIntent = new Intent(this, TelemetryServiceActivities.Binding.class);
327 startActivity(serverIntent);
329 case R.id.connect_scan:
330 // Launch the DeviceListActivity to see devices and do scan
331 serverIntent = new Intent(this, DeviceListActivity.class);
332 startActivityForResult(serverIntent, REQUEST_CONNECT_DEVICE);