WallyHackenslacker/NxtAR-cam
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Finished connecting with the robot via Bluetooth

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Wally Hackenslacker
2013-11-22 11:13:08 -04:30
parent 9b84214f8d
commit 99a17242cf
8 changed files with 274 additions and 72 deletions
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36
res/layout/activity_main.xml
View File

@@ -2,10 +2,42 @@
xmlns:tools="http://schemas.android.com/tools" xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent" android:layout_width="match_parent"
android:layout_height="match_parent" android:layout_height="match_parent"
android:baselineAligned="false"
android:paddingBottom="@dimen/activity_vertical_margin" android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin" android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin" android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin" android:paddingTop="@dimen/activity_vertical_margin"
android:baselineAligned="false"
tools:context=".MainActivity" > tools:context=".MainActivity" >
</RelativeLayout>
<Button
android:id="@+id/connectButton"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@+id/imageView1"
android:layout_centerHorizontal="true"
android:gravity="center"
android:onClick="connectWithRobot"
android:text="@string/robot_pair_button" />
<Button
android:id="@+id/startButton"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignLeft="@+id/connectButton"
android:layout_alignRight="@+id/connectButton"
android:layout_below="@+id/connectButton"
android:gravity="center"
android:onClick="startConnections"
android:text="@string/start_button" />
<ImageView
android:id="@+id/imageView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:layout_centerHorizontal="true"
android:layout_marginTop="60dp"
android:contentDescription="@string/lens_icon"
android:src="@drawable/camera_lens" />
</RelativeLayout>

11
res/values-es/strings.xml
View File

@@ -7,7 +7,7 @@
<string name="camera_success">Cámara abierta exitosamente</string> <string name="camera_success">Cámara abierta exitosamente</string>
<string name="camera_failure">La cámara no pudo abrirse</string> <string name="camera_failure">La cámara no pudo abrirse</string>
<string name="get_server_button">Conectar con NxtAR</string> <string name="get_server_button">Conectar con NxtAR</string>
<string name="start_button">Conectar con dispositivo controlador</string> <string name="start_button">Comenzar streaming de video</string>
<string name="title_activity_cam">CamActivity</string> <string name="title_activity_cam">CamActivity</string>
<string name="ipAddressLabel">Dirección IP de NxtAR</string> <string name="ipAddressLabel">Dirección IP de NxtAR</string>
<string name="badIpToast">La dirección IP no es válida</string> <string name="badIpToast">La dirección IP no es válida</string>
@@ -17,6 +17,13 @@
<string name="cancel_button">Cancelar</string> <string name="cancel_button">Cancelar</string>
<string name="wifi_on_button">Encender</string> <string name="wifi_on_button">Encender</string>
<string name="wifi_on_success">El radio del WiFi está encendido</string> <string name="wifi_on_success">El radio del WiFi está encendido</string>
<string name="wifi_on_fail">Esta app no puede funcionar sin wifi. Cerrando.</string> <string name="wifi_on_fail">Esta app no puede funcionar sin wifi, cerrando.</string>
<string name= "bt_no_support">Este dispositivo no soporta Bluetooth</string>
<string name="bt_on_fail">Esta app no puede funcionar sin Bluetooth, cerrando</string>
<string name="lens_icon">Ícono de lente</string>
<string name="robot_pair_button">Conectar con el robot</string>
<string name="robot_choice">Escoja un robot</string>
<string name="conn_established">Conexión exitosa con el robot</string>
<string name="conn_failed">No se pudo conectar con el robot</string>
</resources> </resources>

15
res/values/strings.xml
View File

@@ -8,7 +8,7 @@
<string name="camera_failure">Camera could not be opened</string> <string name="camera_failure">Camera could not be opened</string>
<string name="title_activity_cam">CamActivity</string> <string name="title_activity_cam">CamActivity</string>
<string name="get_server_button">Connect with NxtAR</string> <string name="get_server_button">Connect with NxtAR</string>
<string name="start_button">Connect with controller device</string> <string name="start_button">Start video streaming</string>
<string name="ipAddressLabel">NxtAR IP Address</string> <string name="ipAddressLabel">NxtAR IP Address</string>
<string name="badIpToast">Invalid IP address</string> <string name="badIpToast">Invalid IP address</string>
<string name="emptyIpToast">Fill out the IP address field</string> <string name="emptyIpToast">Fill out the IP address field</string>
@@ -16,7 +16,14 @@
<string name="wifi_on_msg">Turn on the WiFi?</string> <string name="wifi_on_msg">Turn on the WiFi?</string>
<string name="cancel_button">Cancel</string> <string name="cancel_button">Cancel</string>
<string name="wifi_on_button">Turn on</string> <string name="wifi_on_button">Turn on</string>
<string name="wifi_on_success">The Wifi radio is on now</string> <string name="wifi_on_success">The WiFi radio is on now</string>
<string name="wifi_on_fail">This app cannot work without wifi. Closing.</string> <string name="wifi_on_fail">This app cannot work without WiFi, closing</string>
<string name="bt_no_support">This device does not support Bluetooth</string>
<string name="bt_on_fail">This app cannot work without Bluetooth, closing</string>
<string name="lens_icon">Image lens icon</string>
<string name="robot_pair_button">Connect with robot</string>
<string name="robot_choice">Pick a robot</string>
<string name="conn_established">Successfully connected with the robot</string>
<string name="conn_failed">Could not connect with the robot</string>
</resources> </resources>

139
src/ve/ucv/ciens/ccg/nxtcam/MainActivity.java
View File

@@ -5,12 +5,16 @@ import java.net.DatagramPacket;
import java.net.InetAddress; import java.net.InetAddress;
import java.net.MulticastSocket; import java.net.MulticastSocket;
import ve.ucv.ciens.ccg.nxtcam.dialogs.ConnectRobotDialog;
import ve.ucv.ciens.ccg.nxtcam.dialogs.ConnectRobotDialog.ConnectRobotDialogListener;
import ve.ucv.ciens.ccg.nxtcam.dialogs.WifiOnDialog; import ve.ucv.ciens.ccg.nxtcam.dialogs.WifiOnDialog;
import ve.ucv.ciens.ccg.nxtcam.dialogs.WifiOnDialog.WifiOnDialogListener; import ve.ucv.ciens.ccg.nxtcam.dialogs.WifiOnDialog.WifiOnDialogListener;
import ve.ucv.ciens.ccg.nxtcam.network.BTCommunicator;
import ve.ucv.ciens.ccg.nxtcam.utils.Logger; import ve.ucv.ciens.ccg.nxtcam.utils.Logger;
import ve.ucv.ciens.ccg.nxtcam.utils.ProjectConstants; import ve.ucv.ciens.ccg.nxtcam.utils.ProjectConstants;
import android.app.Activity; import android.app.Activity;
import android.app.DialogFragment; import android.app.DialogFragment;
import android.bluetooth.BluetoothAdapter;
import android.content.Context; import android.content.Context;
import android.content.Intent; import android.content.Intent;
import android.net.wifi.WifiManager; import android.net.wifi.WifiManager;
@@ -18,6 +22,8 @@ import android.net.wifi.WifiManager.MulticastLock;
import android.os.AsyncTask; import android.os.AsyncTask;
import android.os.Bundle; import android.os.Bundle;
import android.view.Menu; import android.view.Menu;
import android.view.View;
import android.widget.Button;
import android.widget.Toast; import android.widget.Toast;
/** /**
@@ -33,16 +39,23 @@ import android.widget.Toast;
* @author miky * @author miky
* *
*/ */
public class MainActivity extends Activity implements WifiOnDialogListener{ public class MainActivity extends Activity implements WifiOnDialogListener, ConnectRobotDialogListener{
// Cosntant fields. // Cosntant fields.
private final String TAG = "NXTCAM_MAIN"; private final String TAG = "NXTCAM_MAIN";
private final String CLASS_NAME = MainActivity.class.getSimpleName(); private final String CLASS_NAME = MainActivity.class.getSimpleName();
private static final int REQUEST_ENABLE_BT = 1;
// Gui components
private Button startButton;
private Button connectButton;
// Resources. // Resources.
private BTCommunicator btManager;
private WifiManager wifiManager; private WifiManager wifiManager;
// Variables. // Variables.
private boolean wifiOnByMe; private boolean wifiOnByMe;
private boolean btOnByMe;
@Override @Override
protected void onCreate(Bundle savedInstanceState) { protected void onCreate(Bundle savedInstanceState) {
@@ -51,18 +64,33 @@ public class MainActivity extends Activity implements WifiOnDialogListener{
// Set up fields. // Set up fields.
wifiOnByMe = false; wifiOnByMe = false;
btOnByMe = false;
// Set up gui components.
startButton = (Button)findViewById(R.id.startButton);
startButton.setEnabled(false);
connectButton = (Button)findViewById(R.id.connectButton);
// Set up services. // Set up services.
btManager = BTCommunicator.getInstance();
wifiManager = (WifiManager)getSystemService(Context.WIFI_SERVICE); wifiManager = (WifiManager)getSystemService(Context.WIFI_SERVICE);
if(!btManager.isBTSupported()){
// El dispositivo no soporta BlueTooth.
Toast.makeText(this, R.string.bt_no_support, Toast.LENGTH_LONG).show();
finish();
System.exit(0);
}
} }
@Override @Override
public void onResume(){ public void onResume(){
super.onResume(); super.onResume();
if(!wifiManager.isWifiEnabled()){ if(!btManager.isBTEnabled()){
DialogFragment wifiOn = new WifiOnDialog(); enableBT();
wifiOn.show(getFragmentManager(), "wifi_on"); }else if(btManager.isBTEnabled() && !wifiManager.isWifiEnabled()){
enableWifi();
} }
} }
@@ -70,10 +98,24 @@ public class MainActivity extends Activity implements WifiOnDialogListener{
public void onPause(){ public void onPause(){
super.onPause(); super.onPause();
if(btManager.isBTEnabled() && btOnByMe)
btManager.disableBT();
if(wifiManager.isWifiEnabled() && wifiOnByMe) if(wifiManager.isWifiEnabled() && wifiOnByMe)
setWifi(false); setWifi(false);
} }
@Override
public void onDestroy(){
if(btManager.isConnected()){
try{
btManager.stopConnection();
}catch(IOException io){
Logger.log_e(TAG, CLASS_NAME + ".onDestroy() :: Error closing the connection with the robot: " + io.getMessage());
}
}
}
@Override @Override
public boolean onCreateOptionsMenu(Menu menu) { public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present. // Inflate the menu; this adds items to the action bar if it is present.
@@ -81,6 +123,15 @@ public class MainActivity extends Activity implements WifiOnDialogListener{
return true; return true;
} }
protected void onActivityResult(int request, int result, Intent data){
if(request == REQUEST_ENABLE_BT && result == RESULT_OK){
if(!wifiManager.isWifiEnabled())
enableWifi();
}else{
Toast.makeText(this, R.string.bt_on_fail, Toast.LENGTH_LONG).show();
}
}
/** /**
* Start the camera capture activity if a server was found through service discovery. * Start the camera capture activity if a server was found through service discovery.
* *
@@ -113,6 +164,25 @@ public class MainActivity extends Activity implements WifiOnDialogListener{
wifiOnByMe = false; wifiOnByMe = false;
} }
private void enableWifi(){
if(!wifiManager.isWifiEnabled()){
DialogFragment wifiOn = new WifiOnDialog();
((WifiOnDialog)wifiOn).setWifiManager(wifiManager);
wifiOn.show(getFragmentManager(), "wifi_on");
}
}
private void enableBT(){
Logger.log_d(TAG, CLASS_NAME + ".enableBT() :: Enabling the Bluetooth radio.");
Intent enableBtIntent = new Intent(BluetoothAdapter.ACTION_REQUEST_ENABLE);
startActivityForResult(enableBtIntent, REQUEST_ENABLE_BT);
btOnByMe = true;
}
protected void showToast(int stringId, int length){
Toast.makeText(this, stringId, length).show();
}
/** /**
* Asynchronous task for ad hoc UDP service discovery. * Asynchronous task for ad hoc UDP service discovery.
* *
@@ -185,17 +255,70 @@ public class MainActivity extends Activity implements WifiOnDialogListener{
} }
} }
/* ServiceDiscoveryTask serviceDiscovery = new ServiceDiscoveryTask(); private class ConnectRobotTask extends AsyncTask<Void, Void, Boolean>{
serviceDiscovery.execute(); */ private final String CLASS_NAME = ConnectRobotTask.class.getSimpleName();
private String macAddress;
public ConnectRobotTask(String macAddress){
this.macAddress = macAddress;
}
@Override
protected Boolean doInBackground(Void... params){
boolean connSet;
Logger.log_d(TAG, CLASS_NAME + "doInBackground() :: Establishing connection with the robot.");
try{
connSet = btManager.establishConnection(macAddress);
}catch(IOException e){
Logger.log_e(TAG, CLASS_NAME + "doInBackground() :: Error during the connection attempt.");
connSet = false;
}
return connSet;
}
@Override
protected void onPostExecute(Boolean result){
if(result){
Logger.log_d(TAG, CLASS_NAME + "doInBackground() :: Connection successful.");
showToast(R.string.conn_established, Toast.LENGTH_SHORT);
}else{
Logger.log_d(TAG, CLASS_NAME + "doInBackground() :: Connection failed.");
showToast(R.string.conn_failed, Toast.LENGTH_LONG);
connectButton.setEnabled(true);
}
}
}
@Override @Override
public void onWifiOnDialogPositiveClick(DialogFragment dialog) { public void onWifiOnDialogPositiveClick(DialogFragment dialog) {
Toast.makeText(this, R.string.wifi_on_success, Toast.LENGTH_SHORT).show(); Toast.makeText(this, R.string.wifi_on_success, Toast.LENGTH_SHORT).show();
wifiOnByMe = true;
} }
@Override @Override
public void onWifiOnDialogNegativeClick(DialogFragment dialog) { public void onWifiOnDialogNegativeClick(DialogFragment dialog) {
Toast.makeText(this, R.string.wifi_on_fail, Toast.LENGTH_SHORT).show(); Toast.makeText(this, R.string.wifi_on_fail, Toast.LENGTH_LONG).show();
System.exit(0); finish();
}; };
public void connectWithRobot(View view){
if(btManager.isBTEnabled()){
DialogFragment connectBot = new ConnectRobotDialog();
connectBot.show(getFragmentManager(), "connect_bot");
}
}
public void startConnections(View view){
ServiceDiscoveryTask serviceDiscovery = new ServiceDiscoveryTask();
serviceDiscovery.execute();
}
@Override
public void onConnectRobotDialogItemClick(DialogFragment dialog, String item) {
String macAddress = item.substring(item.indexOf('\n')+1);
Logger.log_d(TAG, CLASS_NAME + ".onConnectRobotDialogItemClick() :: MAC address: " + macAddress);
connectButton.setEnabled(false);
ConnectRobotTask robotTask = new ConnectRobotTask(macAddress);
robotTask.execute();
}
} }

32
src/ve/ucv/ciens/ccg/nxtcam/dialogs/ConnectRobotDialog.java
View File

@@ -1,10 +1,18 @@
package ve.ucv.ciens.ccg.nxtcam.dialogs; package ve.ucv.ciens.ccg.nxtcam.dialogs;
import java.util.ArrayList;
import java.util.List;
import java.util.Set;
import ve.ucv.ciens.ccg.nxtcam.R; import ve.ucv.ciens.ccg.nxtcam.R;
import ve.ucv.ciens.ccg.nxtcam.network.BTCommunicator;
import ve.ucv.ciens.ccg.nxtcam.utils.Logger;
import ve.ucv.ciens.ccg.nxtcam.utils.ProjectConstants;
import android.app.Activity; import android.app.Activity;
import android.app.AlertDialog; import android.app.AlertDialog;
import android.app.Dialog; import android.app.Dialog;
import android.app.DialogFragment; import android.app.DialogFragment;
import android.bluetooth.BluetoothDevice;
import android.content.DialogInterface; import android.content.DialogInterface;
import android.os.Bundle; import android.os.Bundle;
@@ -13,10 +21,12 @@ public class ConnectRobotDialog extends DialogFragment {
private final String CLASS_NAME = ConnectRobotDialog.class.getSimpleName(); private final String CLASS_NAME = ConnectRobotDialog.class.getSimpleName();
private ConnectRobotDialogListener listener; private ConnectRobotDialogListener listener;
private BTCommunicator btManager;
private List<String> devices;
private String[] devicesArray;
public interface ConnectRobotDialogListener{ public interface ConnectRobotDialogListener{
public void onConnectRobotDialogPositiveClick(DialogFragment dialog); public void onConnectRobotDialogItemClick(DialogFragment dialog, String item);
public void onConnectRobotDialogNegativeClick(DialogFragment dialog);
} }
@Override @Override
@@ -24,16 +34,28 @@ public class ConnectRobotDialog extends DialogFragment {
// Use the Builder class for convenient dialog construction // Use the Builder class for convenient dialog construction
AlertDialog.Builder builder = new AlertDialog.Builder(getActivity()); AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
builder.setMessage(R.string.wifi_on_msg).setPositiveButton(R.string.wifi_on_button, new DialogInterface.OnClickListener() { // Fill a list with all the paired LEGO robots.
btManager = BTCommunicator.getInstance();
devices = new ArrayList<String>();
Set<BluetoothDevice> pairedDevices = btManager.getPairedDevices();
for (BluetoothDevice device : pairedDevices) {
// Put the device in the list only if it's MAC address belongs to LEGO.
if(device.getAddress().substring(0, 8).compareTo(ProjectConstants.OUI_LEGO) == 0)
devices.add(device.getName() + "\n" + device.getAddress());
}
devicesArray = devices.toArray(new String[devices.size()]);
public void onClick(DialogInterface dialog, int id){ builder.setTitle(R.string.robot_choice).setItems(devicesArray, new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which){
Logger.log_d(TAG, CLASS_NAME + ".setItems().onClick( :: User chose: " + devices.get(which));
listener.onConnectRobotDialogItemClick(ConnectRobotDialog.this, devices.get(which));
} }
}).setNegativeButton(R.string.cancel_button, new DialogInterface.OnClickListener() { }).setNegativeButton(R.string.cancel_button, new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int id){ public void onClick(DialogInterface dialog, int id){
Logger.log_d(TAG, CLASS_NAME + ".setNegativeButton().onClick( :: User canceled.");
} }
}); });

32
src/ve/ucv/ciens/ccg/nxtcam/dialogs/WifiOnDialog.java
View File

@@ -11,9 +11,10 @@ import android.net.wifi.WifiManager;
import android.os.Bundle; import android.os.Bundle;
public class WifiOnDialog extends DialogFragment { public class WifiOnDialog extends DialogFragment {
private final String TAG = "NXTCAM_MAIN"; private final String TAG = "NXTCAM_WIFI_DIALOG";
private final String CLASS_NAME = WifiOnDialog.class.getSimpleName(); private final String CLASS_NAME = WifiOnDialog.class.getSimpleName();
private WifiOnDialogListener listener;
private WifiManager wifiManager; private WifiManager wifiManager;
public interface WifiOnDialogListener{ public interface WifiOnDialogListener{
@@ -26,23 +27,32 @@ public class WifiOnDialog extends DialogFragment {
} }
@Override @Override
public Dialog onCreateDialog(Bundle savedInstanceState) { public Dialog onCreateDialog(Bundle savedInstanceState){
// Use the Builder class for convenient dialog construction // Use the Builder class for convenient dialog construction
AlertDialog.Builder builder = new AlertDialog.Builder(getActivity()); AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
builder.setMessage(R.string.wifi_on_msg).setPositiveButton(R.string.wifi_on_button, new DialogInterface.OnClickListener() { builder.setMessage(R.string.wifi_on_msg).setPositiveButton(R.string.wifi_on_button, new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int id) { public void onClick(DialogInterface dialog, int id){
if(wifiManager != null){ if(wifiManager != null){
wifiManager.setWifiEnabled(true); wifiManager.setWifiEnabled(true);
Logger.log_d(TAG, CLASS_NAME + " :: setting wifi to on."); Logger.log_d(TAG, CLASS_NAME + ".setPositiveButton().onClick() :: setting wifi to on.");
}else if(listener != null)
Logger.log_wtf(TAG, CLASS_NAME + " :: wifiManager is null! Doing nothing."); listener.onWifiOnDialogPositiveClick(WifiOnDialog.this);
}else{
Logger.log_wtf(TAG, CLASS_NAME + ".setPositiveButton().onClick( :: wifiManager is null! Doing nothing.");
if(listener != null)
listener.onWifiOnDialogNegativeClick(WifiOnDialog.this);
}
} }
}).setNegativeButton(R.string.cancel_button, new DialogInterface.OnClickListener() { }).setNegativeButton(R.string.cancel_button, new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int id) { } public void onClick(DialogInterface dialog, int id){
Logger.log_d(TAG, CLASS_NAME + ".setPositiveButton().onClick( :: User canceled.");
if(listener != null)
listener.onWifiOnDialogNegativeClick(WifiOnDialog.this);
}
}); });
@@ -52,11 +62,13 @@ public class WifiOnDialog extends DialogFragment {
@Override @Override
public void onAttach(Activity activity){ public void onAttach(Activity activity){
super.onAttach(activity);
try{ try{
@SuppressWarnings("unused") listener = (WifiOnDialogListener)activity;
WifiOnDialogListener listener = (WifiOnDialogListener)activity;
}catch(ClassCastException cce){ }catch(ClassCastException cce){
throw new ClassCastException(activity.toString() + "Must implement WifiOnDialogListener."); listener = null;
throw new ClassCastException(CLASS_NAME + ".onAttach() :: " + activity.toString() + "Must implement WifiOnDialogListener.");
} }
} }
} }

74
src/ve/ucv/ciens/ccg/nxtcam/network/BTCommunicator.java
View File

@@ -4,10 +4,9 @@ import java.io.IOException;
import java.io.InputStream; import java.io.InputStream;
import java.io.OutputStream; import java.io.OutputStream;
import java.util.Set; import java.util.Set;
import java.util.UUID;
import ve.ucv.ciens.ccg.nxtcam.MainActivity;
import ve.ucv.ciens.ccg.nxtcam.utils.Logger; import ve.ucv.ciens.ccg.nxtcam.utils.Logger;
import ve.ucv.ciens.ccg.nxtcam.utils.ProjectConstants;
import android.bluetooth.BluetoothAdapter; import android.bluetooth.BluetoothAdapter;
import android.bluetooth.BluetoothDevice; import android.bluetooth.BluetoothDevice;
import android.bluetooth.BluetoothSocket; import android.bluetooth.BluetoothSocket;
@@ -22,17 +21,14 @@ import android.util.Log;
*/ */
public class BTCommunicator{ public class BTCommunicator{
private static final String TAG = "NXT_TEST_BTCOMM"; private static final String TAG = "NXT_TEST_BTCOMM";
private final String CLASS_NAME = MainActivity.class.getSimpleName(); private final String CLASS_NAME = BTCommunicator.class.getSimpleName();
private static final UUID SERIAL_PORT_SERVICE_CLASS_UUID = UUID.fromString("00001101-0000-1000-8000-00805F9B34FB");
private static final String OUI_LEGO = "00:16:53";
private boolean connected; private boolean connected;
private BluetoothAdapter bt_adapter = null; private BluetoothAdapter btAdapter = null;
private BluetoothSocket bt_socket = null; private BluetoothSocket btSocket = null;
private OutputStream nxt_out_stream = null; private OutputStream nxtOutputStream = null;
private InputStream nxt_in_stream = null; private InputStream nxtInputStream = null;
private static class SingletonHolder{ private static class SingletonHolder{
public static final BTCommunicator INSTANCE = new BTCommunicator(); public static final BTCommunicator INSTANCE = new BTCommunicator();
} }
@@ -51,10 +47,10 @@ public class BTCommunicator{
*/ */
private BTCommunicator(){ private BTCommunicator(){
connected = false; connected = false;
bt_adapter = BluetoothAdapter.getDefaultAdapter(); btAdapter = BluetoothAdapter.getDefaultAdapter();
bt_socket = null; btSocket = null;
nxt_in_stream = null; nxtInputStream = null;
nxt_out_stream = null; nxtOutputStream = null;
} }
/** /**
@@ -63,7 +59,7 @@ public class BTCommunicator{
* @return true if the default Bluetooth adapter exists, otherwise false. * @return true if the default Bluetooth adapter exists, otherwise false.
*/ */
public boolean isBTSupported(){ public boolean isBTSupported(){
return bt_adapter != null; return btAdapter != null;
} }
/** /**
@@ -81,7 +77,7 @@ public class BTCommunicator{
* @see android.bluetooth.BluetoothAdapter * @see android.bluetooth.BluetoothAdapter
*/ */
public boolean isBTEnabled(){ public boolean isBTEnabled(){
return bt_adapter.isEnabled(); return btAdapter.isEnabled();
} }
/** /**
@@ -90,7 +86,7 @@ public class BTCommunicator{
* @see android.bluetooth.BluetoothAdapter * @see android.bluetooth.BluetoothAdapter
*/ */
public void disableBT(){ public void disableBT(){
bt_adapter.disable(); btAdapter.disable();
} }
/** /**
@@ -99,7 +95,7 @@ public class BTCommunicator{
* @return A set containing all devices paired to this device. * @return A set containing all devices paired to this device.
*/ */
public Set<BluetoothDevice> getPairedDevices(){ public Set<BluetoothDevice> getPairedDevices(){
return bt_adapter.getBondedDevices(); return btAdapter.getBondedDevices();
} }
/** /**
@@ -108,42 +104,42 @@ public class BTCommunicator{
* Verifies if the target device is a valid NXT robot by checking agains Lego's OUI. * Verifies if the target device is a valid NXT robot by checking agains Lego's OUI.
* Also creates the socket and the streams associated with the connection * Also creates the socket and the streams associated with the connection
* *
* @param mac_address The mac address of the target device. * @param macAddress The mac address of the target device.
* @return true if the connection was established succesfully, otherwise false. * @return true if the connection was established succesfully, otherwise false.
* @throws IOException * @throws IOException
*/ */
public boolean establishConnection(String mac_address) throws IOException{ public boolean establishConnection(String macAddress) throws IOException{
if (!bt_adapter.isEnabled()){ if (!btAdapter.isEnabled()){
return false; return false;
} }
if(connected){ if(connected){
return false; return false;
} }
if(bt_adapter.isEnabled()){ if(btAdapter.isEnabled()){
if(mac_address == "NONE"){ if(macAddress == "NONE"){
return false; return false;
}else{ }else{
if(mac_address.substring(0, 8).compareTo(OUI_LEGO) != 0){ if(macAddress.substring(0, 8).compareTo(ProjectConstants.OUI_LEGO) != 0){
Logger.log_d(TAG, CLASS_NAME + ".establishConnection() :: Not a Lego MAC. Prefix : " + mac_address.substring(0, 8) + " :: OUI : " + OUI_LEGO); Logger.log_d(TAG, CLASS_NAME + ".establishConnection() :: Not a Lego MAC. Prefix : " + macAddress.substring(0, 8) + " :: OUI : " + ProjectConstants.OUI_LEGO);
return false; return false;
}else{ }else{
try{ try{
Logger.log_d(TAG, CLASS_NAME + ".establishConnection() :: Getting device with mac address: " + mac_address); Logger.log_d(TAG, CLASS_NAME + ".establishConnection() :: Getting device with mac address: " + macAddress);
BluetoothDevice nxtDevice = null; BluetoothDevice nxtDevice = null;
nxtDevice = bt_adapter.getRemoteDevice(mac_address); nxtDevice = btAdapter.getRemoteDevice(macAddress);
if (nxtDevice == null) { if (nxtDevice == null) {
Logger.log_e(TAG, CLASS_NAME + ".establishConnection() :: No device found."); Logger.log_e(TAG, CLASS_NAME + ".establishConnection() :: No device found.");
throw new IOException(); throw new IOException();
} }
Logger.log_d(TAG, CLASS_NAME + ".establishConnection() :: Opening socket."); Logger.log_d(TAG, CLASS_NAME + ".establishConnection() :: Opening socket.");
bt_socket = nxtDevice.createRfcommSocketToServiceRecord(SERIAL_PORT_SERVICE_CLASS_UUID); btSocket = nxtDevice.createRfcommSocketToServiceRecord(ProjectConstants.SERIAL_PORT_SERVICE_CLASS_UUID);
Logger.log_d(TAG, CLASS_NAME + ".establishConnection() :: Connecting."); Logger.log_d(TAG, CLASS_NAME + ".establishConnection() :: Connecting.");
bt_socket.connect(); btSocket.connect();
Logger.log_d(TAG, CLASS_NAME + ".establishConnection() :: Opening IO streams."); Logger.log_d(TAG, CLASS_NAME + ".establishConnection() :: Opening IO streams.");
nxt_in_stream = bt_socket.getInputStream(); nxtInputStream = btSocket.getInputStream();
nxt_out_stream = bt_socket.getOutputStream(); nxtOutputStream = btSocket.getOutputStream();
Logger.log_d(TAG, CLASS_NAME + ".establishConnection() :: Connection established."); Logger.log_d(TAG, CLASS_NAME + ".establishConnection() :: Connection established.");
connected = true; connected = true;
@@ -171,12 +167,12 @@ public class BTCommunicator{
*/ */
public boolean stopConnection() throws IOException{ public boolean stopConnection() throws IOException{
try{ try{
if(bt_socket != null){ if(btSocket != null){
Logger.log_d(TAG, CLASS_NAME + ".stopConnection() :: Closing connection."); Logger.log_d(TAG, CLASS_NAME + ".stopConnection() :: Closing connection.");
bt_socket.close(); btSocket.close();
bt_socket = null; btSocket = null;
nxt_in_stream = null; nxtInputStream = null;
nxt_out_stream = null; nxtOutputStream = null;
connected = false; connected = false;
Logger.log_d(TAG, CLASS_NAME + ".stopConnection() :: Connection closed."); Logger.log_d(TAG, CLASS_NAME + ".stopConnection() :: Connection closed.");
return true; return true;
@@ -198,7 +194,7 @@ public class BTCommunicator{
public synchronized void writeMessage(byte[] message) throws IOException{ public synchronized void writeMessage(byte[] message) throws IOException{
if(connected){ if(connected){
try{ try{
nxt_out_stream.write(message); nxtOutputStream.write(message);
}catch(IOException e){ }catch(IOException e){
Logger.log_e(TAG, CLASS_NAME + ".writeMessage()"); Logger.log_e(TAG, CLASS_NAME + ".writeMessage()");
Logger.log_e(TAG, Log.getStackTraceString(e)); Logger.log_e(TAG, Log.getStackTraceString(e));
@@ -220,7 +216,7 @@ public class BTCommunicator{
for(int i = 0; i < message.length; ++i){ for(int i = 0; i < message.length; ++i){
message[i] = 0x00; message[i] = 0x00;
} }
nxt_in_stream.read(message, 0, bytes); nxtInputStream.read(message, 0, bytes);
return message; return message;
}catch(IOException e){ }catch(IOException e){
Logger.log_e(TAG, CLASS_NAME + ".readMessage()"); Logger.log_e(TAG, CLASS_NAME + ".readMessage()");

7
src/ve/ucv/ciens/ccg/nxtcam/utils/ProjectConstants.java
View File

@@ -1,11 +1,14 @@
package ve.ucv.ciens.ccg.nxtcam.utils; package ve.ucv.ciens.ccg.nxtcam.utils;
import java.util.UUID;
public abstract class ProjectConstants { public abstract class ProjectConstants {
public static final int SERVER_UDP_PORT = 8889; public static final int SERVER_UDP_PORT = 8889;
public static final int SERVER_TCP_PORT_1 = 9989; public static final int SERVER_TCP_PORT_1 = 9989;
public static final int SERVER_TCP_PORT_2 = 9990; public static final int SERVER_TCP_PORT_2 = 9990;
public static final UUID SERIAL_PORT_SERVICE_CLASS_UUID = UUID.fromString("00001101-0000-1000-8000-00805F9B34FB");
public static final String OUI_LEGO = "00:16:53";
public static final String MULTICAST_ADDRESS = "230.0.0.1"; public static final String MULTICAST_ADDRESS = "230.0.0.1";
public static final boolean DEBUG = true; public static final boolean DEBUG = true;
} }