Develop Reference

Android Geofence Transition PendingIntent seems not to run (react-native bridge)

I am following the android guide android guide to build a simple native bridge for react-native for geofencing.
But I do not get any response when entering or leaving a geofence. It seems like the PendingIntent / IntentService for Transitions is not running properly.
MyModule looks basically like this. It also creates mGeofenceList like in the docs populated with data from react-native.
MyModule:
public class MyModule extends ReactContextBaseJavaModule {
//Build geofences
private GeofencingRequest getGeofencingRequest() {
GeofencingRequest.Builder builder = new GeofencingRequest.Builder();
builder.setInitialTrigger(GeofencingRequest.INITIAL_TRIGGER_ENTER);
builder.addGeofences(mGeofenceList);
return builder.build();
}
//Build pending intent
private PendingIntent getGeofencePendingIntent() {
// Reuse the PendingIntent if we already have it.
if (mGeofencePendingIntent != null) {
return mGeofencePendingIntent;
}
Intent intent = new Intent(reactContext, GeofenceTransitionsIntentService.class);
// We use FLAG_UPDATE_CURRENT so that we get the same pending intent back when
// calling addGeofences() and removeGeofences().
mGeofencePendingIntent = PendingIntent.getService(reactContext, 0, intent, PendingIntent.
FLAG_UPDATE_CURRENT);
return mGeofencePendingIntent;
}
#ReactMethod
public void startMonitoring() {
mGeofencingClient.addGeofences(getGeofencingRequest(), getGeofencePendingIntent())
.addOnSuccessListener(new OnSuccessListener<Void>() {
#Override
public void onSuccess(Void aVoid) {
Log.i(TAG, "Start Monitoring");
postNotification("Start Monitoring", "Pressed Start Monitoring");
}
})
.addOnFailureListener(new OnFailureListener() {
#Override
public void onFailure(#NonNull Exception e) {
Log.e(TAG, "Start Monitoring: " + e.getMessage());
}
});
}
}
When running startMonitoring(), the notification (Start Monitoring) and the log gets produced, so I assume that the error is not in this part.
The IntentService looks also pretty basic /similar to the docs.
IntentService:
public class GeofenceTransitionsIntentService extends IntentService {
private static final String TAG = "GeofenceService";
private Handler handler;
SharedPreferences sp;
public GeofenceTransitionsIntentService(){
super(TAG);
}
#Override
public void onCreate() {
super.onCreate();
sp = PreferenceManager.getDefaultSharedPreferences(this);
handler = new Handler();
Log.i(TAG, "Intent created");
}
protected void onHandleIntent(Intent intent) {
Log.i(TAG, "onHandleIntent");
GeofencingEvent geofencingEvent = GeofencingEvent.fromIntent(intent);
if (geofencingEvent.hasError()) {
String errorMessage = "Error Code: " + String.valueOf(geofencingEvent.getErrorCode());
Log.e(TAG, errorMessage);
return;
}
// Get the transition type.
int geofenceTransition = geofencingEvent.getGeofenceTransition();
// Test that the reported transition was of interest.
if (geofenceTransition == Geofence.GEOFENCE_TRANSITION_ENTER ||
geofenceTransition == Geofence.GEOFENCE_TRANSITION_EXIT) {
// Get the geofences that were triggered. A single event can trigger
// multiple geofences.
List<Geofence> triggeringGeofences = geofencingEvent.getTriggeringGeofences();
// Get the transition details as a String.
String geofenceTransitionDetails = getGeofenceTransitionDetails(
geofenceTransition,
triggeringGeofences
);
// Send notification and log the transition details.
//sendNotification(geofenceTransitionDetails);
handler.post(new Runnable() {
#Override
public void run() {
Toast.makeText(getApplicationContext(), "Enter/Exit", Toast.LENGTH_SHORT).show();
}
});
Log.i(TAG, geofenceTransitionDetails);
} else {
// Log the error.
Log.e(TAG, "Invalid transition");
handler.post(new Runnable() {
#Override
public void run() {
Toast.makeText(getApplicationContext(), "ERROR", Toast.LENGTH_SHORT).show();
}
});
}
}
/*
Helpfunctions for logging
*/
private String getGeofenceTransitionDetails(
int geofenceTransition,
List<Geofence> triggeringGeofences) {
String geofenceTransitionString = getTransitionString(geofenceTransition);
// Get the Ids of each geofence that was triggered.
ArrayList<String> triggeringGeofencesIdsList = new ArrayList<>();
for (Geofence geofence : triggeringGeofences) {
triggeringGeofencesIdsList.add(geofence.getRequestId());
}
String triggeringGeofencesIdsString = TextUtils.join(", ", triggeringGeofencesIdsList);
return geofenceTransitionString + ": " + triggeringGeofencesIdsString;
}
private String getTransitionString(int transitionType) {
switch (transitionType) {
case Geofence.GEOFENCE_TRANSITION_ENTER:
return "entered Geofence";
case Geofence.GEOFENCE_TRANSITION_EXIT:
return "exit Geofence";
default:
return "unknown Transition";
}
}
}
But none of the outputs of this class gets produced!
In the manifest of my native module I added the permission:
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/>
And in the manifest of the TestApplication that uses this module I added this permission as well and in the application tag I added
<service android:name="com.mymodule.GeofenceTransitionsIntentService" android:exported="false"/>
I could not add this last line in the module's manifest, cause it was missing the application tag and has no activity. I am not sure if this is the right place.
I am testing in the emulator and change the location to a list of GPS data playback.
Questions
How can I verify that the ServiceIntent is running? Can I get Status of it?
Where does the logs appear? In com.TestApplication or somewhere else?
and of course:
3. Where is my error?

Ok, answering my own question, or specific only question 3:
The code above has no error, or at least and works as expected on a hardware device.
So, how to properly debug Geofencing on an emulator?

is it possible to quit looper in onReceive method in BroadcastReceiver

Using the following code and when onReceive is fired,am getting the following error
Error receiving broadcast Intent { act=com.sample.service.ReminderActivityService flg=0x10 (has extras) }
in com.sample.common.UserActivity$1#41c2b4b0
The problem is this statement Looper.myLooper().quit();
How do I terminate my looper after receiving the broadcast in the code below?
public class UserActivity extends Thread implements
ConnectionCallbacks, OnConnectionFailedListener {
private String TAG;
// Constants that define the activity detection interval
public static final int MILLISECONDS_PER_SECOND = 1000;
public static final int DETECTION_INTERVAL_SECONDS = 30;
public static final int DETECTION_INTERVAL_MILLISECONDS = MILLISECONDS_PER_SECOND * DETECTION_INTERVAL_SECONDS;
IntentService is;
onActivityGot mCallback;
Handler mHandler;
Context mContext;
BroadcastReceiver br;
/*
* Store the PendingIntent used to send activity recognition events
* back to the app
*/
private PendingIntent mActivityRecognitionPendingIntent;
// Store the current activity recognition client
private ActivityRecognitionClient mActivityRecognitionClient;
public UserActivity(UserActivity.onActivityGot ints) {
is = (IntentService) ints;
mContext = is.getApplicationContext();
mHandler = new Handler();
TAG = this.getClass().getSimpleName();
// This makes sure that the container service has implemented
// the callback interface. If not, it throws an exception
try {
mCallback = (UserActivity.onActivityGot) ints;
} catch (ClassCastException e) {
throw new ClassCastException(ints.toString()
+ " must implement UserActivity.onActivityGot");
}
Log.i(TAG, "UserActivity constractor fired in activity");
}
#Override
public void run() {
if (servicesConnected()) {
Looper.prepare();
Log.i(TAG, "servicesConnected fired in activity");
/*
* Instantiate a new activity recognition client. Since the
* parent Activity implements the connection listener and
* connection failure listener, the constructor uses "this"
* to specify the values of those parameters.
*/
mActivityRecognitionClient =
new ActivityRecognitionClient(mContext, this, this);
// connect to the service
mActivityRecognitionClient.connect();
br = new BroadcastReceiver() {
#Override
public void onReceive(Context c, Intent i) {
//call calback with data
mCallback.activityKnown(i);
mActivityRecognitionClient.removeActivityUpdates(mActivityRecognitionPendingIntent);
mActivityRecognitionClient.disconnect();
mContext.unregisterReceiver(br);
Looper.myLooper().quit();
}
};
mContext.registerReceiver(br, new IntentFilter("com.sample.service.ReminderActivityService"));
Looper.loop();
}
}
#Override
public void onConnected(Bundle dataBundle) {
Log.i(TAG, "onConnected fired");
/*
* Create the PendingIntent that Location Services uses
* to send activity recognition updates back to this app.
*/
Intent intent = new Intent(
mContext, ReminderActivityService.class);
/*
* Return a PendingIntent that starts the IntentService.
*/
mActivityRecognitionPendingIntent =
PendingIntent.getService(mContext, 0, intent,
PendingIntent.FLAG_UPDATE_CURRENT);
/*
* Request activity recognition updates using the preset
* detection interval and PendingIntent. This call is
* synchronous.
*/
mActivityRecognitionClient.requestActivityUpdates(
DETECTION_INTERVAL_MILLISECONDS,
mActivityRecognitionPendingIntent);
}
#Override
public void onDisconnected() {
// Delete the client
mActivityRecognitionClient = null;
Looper.myLooper().quit();
Log.i(TAG, "onDisconnected fired");
}
#Override
public void onConnectionFailed(ConnectionResult cr) {
mHandler.post(new UiToastCommunicaton(mContext,
is.getResources().getString(R.string.action_connfailed)));
mCallback.activityFail();
Looper.myLooper().quit();
Log.i(TAG, "onConnectionFailed fired");
}
private boolean servicesConnected() {
// Check that Google Play services is available
int resultCode =
GooglePlayServicesUtil.
isGooglePlayServicesAvailable(is.getBaseContext());
if (ConnectionResult.SUCCESS == resultCode) {// If Google Play services is available
// In debug mode, log the status
Log.d("Activity Recognition",
"Google Play services is available.");
// Continue
return true;
} else {// Google Play services was not available for some reason
mHandler.post(new UiToastCommunicaton(mContext,
is.getResources().getString(R.string.gpserv_notfound)));
return false;
}
}
public interface onActivityGot {
public void activityKnown(Intent i);
public void activityFail();
}
}

found a way by storing a handle to the looper in a static variable. view below.
declare the variable
public static Handler looperHandle;
set the variable after preparing looper
Looper.prepare();
looperHandle = new Handler();
since i had instantiated the class in an object i just called
object.looperHandle.getLooper().quit();
am not comfortable with this solution because of using a static variable.
if someone has a better solution please post it here.

android background service static field send same msg twice

I have a big problem that i couldn't find solution. Need your help.
When i try to send just one message in activity using service , it works.
But when i try to send 2 message following another( that means one after other ) , sends the message twice with the same publishTopic2 and pushMsg2.
Code is :
PushService.actionPush(getApplicationContext(),publishTopic1,pushMsg1);
PushService.actionPush(getApplicationContext(),publishTopic2,pushMsg2);
1- is this from the wrong usage of syncronized keyword ?
2- is it possibe to send two msg after another without
public class PushService
extends Service
{
// this is the log tag
public static final String TAG = "DemoPushService";
public static String IncomingText = "";
private static String PushMesaj = "";
// the IP address, where your MQTT broker is running.
private static final String MQTT_HOST = "";
// the port at which the broker is running.
private static int MQTT_BROKER_PORT_NUM = 1883;
// Let's not use the MQTT persistence.
private static MqttClientPersistence MQTT_PERSISTENCE = null;
// We don't need to remember any state between the connections, so we use a
// clean start.
private static boolean MQTT_CLEAN_START = true;
// Let's set the internal keep alive for MQTT to 15 mins. I haven't tested
// this value much. It could probably be increased.
private static short MQTT_KEEP_ALIVE = 60 * 15;
// Set quality of services to 0 (at most once delivery), since we don't want
// push notifications
// arrive more than once. However, this means that some messages might get
// lost (delivery is not guaranteed)
// private static int[] MQTT_QUALITIES_OF_SERVICE = { 0 } ;
private static int MQTT_QUALITY_OF_SERVICE = 2;
// The broker should not retain any messages.
// private static boolean MQTT_RETAINED_PUBLISH = false;
// MQTT client ID, which is given the broker. In this example, I also use
// this for the topic header.
// You can use this to run push notifications for multiple apps with one
// MQTT broker.
public static String MQTT_CLIENT_ID = "begining";
public static String SUBSCRIBE_TOPIC = "begining";
private static String PUBLISH_TOPIC = "begining";
// These are the actions for the service (name are descriptive enough)
private static final String ACTION_START = MQTT_CLIENT_ID + ".START";
private static final String ACTION_STOP = MQTT_CLIENT_ID + ".STOP";
private static final String ACTION_SUBSCRIBE = MQTT_CLIENT_ID
+ ".SUBSCRIBE";
private static final String ACTION_PUBLISH = MQTT_CLIENT_ID + ".PUBLISH";
private static final String ACTION_KEEPALIVE = MQTT_CLIENT_ID
+ ".KEEP_ALIVE";
private static final String ACTION_PUSHMESSAGE = MQTT_CLIENT_ID
+ ".PUSH_MESSAGE";
private static final String ACTION_PUSHMESSAGE2 = MQTT_CLIENT_ID
+ ".PUSH_MESSAGE";
private static final String ACTION_RECONNECT = MQTT_CLIENT_ID
+ ".RECONNECT";
// Connection log for the push service. Good for debugging.
private ConnectionLog mLog;
// Connectivity manager to determining, when the phone loses connection
private ConnectivityManager mConnMan;
// Notification manager to displaying arrived push notifications
private NotificationManager mNotifMan;
// Whether or not the service has been started.
private boolean mStarted;
// This the application level keep-alive interval, that is used by the
// AlarmManager
// to keep the connection active, even when the device goes to sleep.
private static final long KEEP_ALIVE_INTERVAL = 1000 * 60 * 28;
// Retry intervals, when the connection is lost.
private static final long INITIAL_RETRY_INTERVAL = 1000 * 10;
private static final long MAXIMUM_RETRY_INTERVAL = 1000 * 60 * 30;
// Preferences instance
private SharedPreferences mPrefs;
// We store in the preferences, whether or not the service has been started
public static final String PREF_STARTED = "isStarted";
// We also store the deviceID (target)
public static final String PREF_DEVICE_ID = "deviceID";
// We store the last retry interval
public static final String PREF_RETRY = "retryInterval";
// Notification title
public static String NOTIF_TITLE = "Hey !!!";
// Notification id
private static final int NOTIF_CONNECTED = 0;
// This is the instance of an MQTT connection.
private MQTTConnection mConnection;
private long mStartTime;
private static clsUser yourInfo;
public static clsOnlineUsers onlineUsers;
private static clsUser myInfo;
// Static method to start the service
public static void actionStart(Context ctx)
{
Intent i = new Intent(ctx, PushService.class);
i.setAction(ACTION_START);
ctx.startService(i);
}
public static void actionSubscribe(Context ctx)
{
Intent i = new Intent(ctx, PushService.class);
i.setAction(ACTION_SUBSCRIBE);
ctx.startService(i);
}
public static void actionPublish(Context ctx)
{
Intent i = new Intent(ctx, PushService.class);
i.setAction(ACTION_PUBLISH);
ctx.startService(i);
}
// Static method to stop the service
public static void actionStop(Context ctx)
{
Intent i = new Intent(ctx, PushService.class);
i.setAction(ACTION_STOP);
ctx.startService(i);
}
// Static method to send a keep alive message
public static void actionPing(Context ctx)
{
Intent i = new Intent(ctx, PushService.class);
i.setAction(ACTION_KEEPALIVE);
ctx.startService(i);
}
public static void actionPush(Context ctx, String publishTopic,
String pushMsg)
{
PUBLISH_TOPIC = publishTopic;
PushMesaj = pushMsg;
Intent i = new Intent(ctx, PushService.class);
i.setAction(ACTION_PUSHMESSAGE);
ctx.startService(i);
}
#Override
public void onCreate()
{
super.onCreate();
log("Creating service");
mStartTime = System.currentTimeMillis();
try {
mLog = new ConnectionLog();
Log.i(TAG, "Opened log at " + mLog.getPath());
} catch (IOException e) {
Log.e(TAG, "Failed to open log", e);
}
// Get instances of preferences, connectivity manager and notification
// manager
mPrefs = getSharedPreferences(TAG, MODE_PRIVATE);
mConnMan = (ConnectivityManager) getSystemService(CONNECTIVITY_SERVICE);
mNotifMan = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);
mPrefs.edit().putLong(PREF_RETRY, INITIAL_RETRY_INTERVAL).commit();
mPrefs.edit().putBoolean(PREF_STARTED, false).commit();
/*
* If our process was reaped by the system for any reason we need to
* restore our state with merely a call to onCreate. We record the last
* "started" value and restore it here if necessary.
*/
handleCrashedService();
}
// This method does any necessary clean-up need in case the server has been
// destroyed by the system
// and then restarted
private void handleCrashedService()
{
if (wasStarted() == true) {
log("Handling crashed service...");
// stop the keep alives
// stopKeepAlives();
// Do a clean start
start();
}
}
#Override
public void onDestroy()
{
log("Service destroyed (started=" + mStarted + ")");
// Stop the services, if it has been started
if (mStarted == true) {
stop();
}
try {
if (mLog != null)
mLog.close();
} catch (IOException e) {
}
}
#Override
public synchronized void onStart(Intent intent, int startId)
{
super.onStart(intent, startId);
log("Service started with intent=" + intent);
if (intent == null) {
start();
return;
}
// Do an appropriate action based on the intent.
if (intent.getAction().equals(ACTION_STOP) == true) {
stop();
stopSelf();
} else if (intent.getAction().equals(ACTION_START) == true) {
start();
} else if (intent.getAction().equals(ACTION_KEEPALIVE) == true) {
keepAlive();
} else if (intent.getAction().equals(ACTION_PUBLISH) == true) {
publish();
} else if (intent.getAction().equals(ACTION_SUBSCRIBE) == true) {
subscribe();
} else if (intent.getAction().equals(ACTION_PUSHMESSAGE) == true) {
sendMessage();
} else if (intent.getAction().equals(ACTION_RECONNECT) == true) {
if (isNetworkAvailable()) {
reconnectIfNecessary();
}
}
}
private void subscribe()
{
// TODO Auto-generated method stub
try {
mConnection.subscribeToTopic(SUBSCRIBE_TOPIC);
} catch (MqttException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
private void publish()
{
try {
// Send a keep alive, if there is a connection.
if (mStarted == true && mConnection != null) {
mConnection.sendPushMessage(1);
}
} catch (MqttException e) {
log("MqttException: "
+ (e.getMessage() != null ? e.getMessage() : "NULL"), e);
mConnection.disconnect();
mConnection = null;
cancelReconnect();
}
}
#Override
public IBinder onBind(Intent intent)
{
return null;
}
// log helper function
private void log(String message)
{
log(message, null);
}
private void log(String message, Throwable e)
{
if (e != null) {
Log.e(TAG, message, e);
} else {
Log.i(TAG, message);
}
if (mLog != null) {
try {
mLog.println(message);
} catch (IOException ex) {
}
}
}
// Reads whether or not the service has been started from the preferences
private boolean wasStarted()
{
return mPrefs.getBoolean(PREF_STARTED, false);
}
// Sets whether or not the services has been started in the preferences.
private void setStarted(boolean started)
{
mPrefs.edit().putBoolean(PREF_STARTED, started).commit();
mStarted = started;
}
private synchronized void start()
{
log("Starting service...");
// Do nothing, if the service is already running.
if (mStarted == true) {
Log.w(TAG, "Attempt to start connection that is already active");
return;
}
// Establish an MQTT connection
connect();
// Register a connectivity listener
registerReceiver(mConnectivityChanged, new IntentFilter(
ConnectivityManager.CONNECTIVITY_ACTION));
}
private synchronized void stop()
{
// Do nothing, if the service is not running.
if (mStarted == false) {
Log.w(TAG, "Attempt to stop connection not active.");
return;
}
// Save stopped state in the preferences
setStarted(false);
// Remove the connectivity receiver
unregisterReceiver(mConnectivityChanged);
// Any existing reconnect timers should be removed, since we explicitly
// stopping the service.
cancelReconnect();
// Destroy the MQTT connection if there is one
if (mConnection != null) {
mConnection.disconnect();
mConnection = null;
}
}
private clsUser setUserInfo(String deviceId)
{
clsUser u = new clsUser();
dbUser du = new dbUser(getApplicationContext(), dbUser.DATABASE_NAME,
null, dbUser.DATABASE_VERSION);
Cursor c1 = du.Getby(null, null, null, null, null, null, null, null,
null, deviceId, null, null, null);
u = du.setProperties(c1);
c1.close();
du.close();
return u;
}
//
private synchronized void connect()
{
log("Connecting...");
// Create a new connection only if the device id is not NULL
if (MQTT_CLIENT_ID == null) {
log("Device ID not found.");
} else {
try {
MQTT_CLIENT_ID = Config.id(getApplication());
myInfo = setUserInfo(MQTT_CLIENT_ID);
mConnection = new MQTTConnection(MQTT_HOST, "user/"
+ MQTT_CLIENT_ID + "/#");
} catch (MqttException e) {
// Schedule a reconnect, if we failed to connect
log("MqttException: "
+ (e.getMessage() != null ? e.getMessage() : "NULL"));
if (!isNetworkAvailable()) {
scheduleReconnect(mStartTime);
}
}
setStarted(true);
}
}
private synchronized void keepAlive()
{
try {
// Send a keep alive, if there is a connection.
if (mStarted == true && mConnection != null) {
mConnection.sendKeepAlive();
}
} catch (MqttException e) {
log("MqttException: "
+ (e.getMessage() != null ? e.getMessage() : "NULL"), e);
mConnection.disconnect();
mConnection = null;
cancelReconnect();
}
}
private void sendMessage()
{
try {
// Send a keep alive, if there is a connection.
if (mStarted == true && mConnection != null) {
mConnection.sendPushMessage(); // this does the job
}
} catch (MqttException e) {
log("MqttException: "
+ (e.getMessage() != null ? e.getMessage() : "NULL"), e);
mConnection.disconnect();
mConnection = null;
cancelReconnect();
}
}
// Schedule application level keep-alives using the AlarmManager
private void startKeepAlives()
{
Intent i = new Intent();
i.setClass(this, PushService.class);
i.setAction(ACTION_KEEPALIVE);
PendingIntent pi = PendingIntent.getService(this, 0, i, 0);
AlarmManager alarmMgr = (AlarmManager) getSystemService(ALARM_SERVICE);
alarmMgr.setRepeating(AlarmManager.RTC_WAKEUP,
System.currentTimeMillis() + KEEP_ALIVE_INTERVAL,
KEEP_ALIVE_INTERVAL, pi);
}
// Remove all scheduled keep alives
private void stopKeepAlives()
{
Intent i = new Intent();
i.setClass(this, PushService.class);
i.setAction(ACTION_KEEPALIVE);
PendingIntent pi = PendingIntent.getService(this, 0, i, 0);
AlarmManager alarmMgr = (AlarmManager) getSystemService(ALARM_SERVICE);
alarmMgr.cancel(pi);
}
// We schedule a reconnect based on the starttime of the service
public void scheduleReconnect(long startTime)
{
// the last keep-alive interval
long interval = mPrefs.getLong(PREF_RETRY, INITIAL_RETRY_INTERVAL);
// Calculate the elapsed time since the start
long now = System.currentTimeMillis();
long elapsed = now - startTime;
log(String.valueOf(elapsed));
// Set an appropriate interval based on the elapsed time since start
if (elapsed < interval) {
interval = Math.min(interval * 4, MAXIMUM_RETRY_INTERVAL);
} else {
interval = INITIAL_RETRY_INTERVAL;
}
log("Rescheduling connection in " + interval + "ms.");
// Save the new internval
mPrefs.edit().putLong(PREF_RETRY, interval).commit();
// Schedule a reconnect using the alarm manager.
Intent i = new Intent();
i.setClass(this, PushService.class);
i.setAction(ACTION_RECONNECT);
PendingIntent pi = PendingIntent.getService(this, 0, i, 0);
AlarmManager alarmMgr = (AlarmManager) getSystemService(ALARM_SERVICE);
alarmMgr.set(AlarmManager.RTC_WAKEUP, now + interval, pi);
}
// Remove the scheduled reconnect
public void cancelReconnect()
{
Intent i = new Intent();
i.setClass(this, PushService.class);
i.setAction(ACTION_RECONNECT);
PendingIntent pi = PendingIntent.getService(this, 0, i, 0);
AlarmManager alarmMgr = (AlarmManager) getSystemService(ALARM_SERVICE);
alarmMgr.cancel(pi);
}
private synchronized void reconnectIfNecessary()
{
if (mStarted == true && mConnection == null) {
log("Reconnecting...");
connect();
}
}
private class MQTTConnection
implements MqttCallback
{
MqttClient mqttClient = null;
MqttConnectOptions conOpt;
String myDeviceId;
// Creates a new connection given the broker address and initial topic
public MQTTConnection(String brokerHostName, String initTopic)
throws MqttException
{
// Create connection spec
}
private void publish(String topicName, int qos, String payload,
boolean retained) throws MqttException
{
}
/*
* Sends a message to the message broker, requesting that it be
* published to the specified topic.
*/
private void publishToTopic(String topicName, String message)
throws MqttException
{
if ((mqttClient == null) || (mqttClient.isConnected() == false)) {
// quick sanity check - don't try and publish if we don't have
// a connection
log("No connection to public to");
} else {
publish(topicName, MQTT_QUALITY_OF_SERVICE, message, false);
}
}
/*
* Send a request to the message broker to be sent messages published
* with the specified topic name. Wildcards are allowed.
*/
private void subscribeToTopic(String topicName1) throws MqttException
{
if ((mqttClient == null) || (mqttClient.isConnected() == false)) {
// quick sanity check - don't try and subscribe if we don't have
// a connection
log("Subscribtion failed : Connection error" + "No connection");
} else {
mqttClient.subscribe(topicName1, 0);
Log.v(TAG, "Subscribe To : " + topicName1);
}
}
public void sendPushMessage(int sira) throws MqttException
{
publishToTopic(PUBLISH_TOPIC, PushMesaj);
}
}
}

When you call actionPush(), it does the following:
PUBLISH_TOPIC = publishTopic;
PushMesaj = pushMsg;
which saves the arguments in private static variables and then calls startService. If you do this twice, you will overwrite the private static variables with the second set of arguments.
You need to understand that the call to startService() is not synchronous. It doesn't start the service immediately and call onStart() before the method returns. The service will get started and the call to onStart() will occur sometime later (timing isn't under your control here).
You want to put these parameters in the Intent that you use to start the service, and retrieve the arguments from the Intent in onStart(). You can't reliably use static variables to do this.
EDIT: ADD CODE DETAILS
Change actionPush() to this:
static final String EXTRA_TOPIC = "EXTRA_TOPIC";
static final String EXTRA_MESSAGE = "EXTRA_MESSAGE";
public static void actionPush(Context ctx, String publishTopic,
String pushMsg)
{
Intent i = new Intent(ctx, PushService.class);
i.setAction(ACTION_PUSHMESSAGE);
i.putExtra(EXTRA_TOPIC, publishTopic);
i.putExtra(EXTRA_MESSAGE, pushMsg);
ctx.startService(i);
}
and in onStart() you can get the arguments out of the Intent like this:
String topic = intent.getStringExtra(EXTRA_TOPIC);
String message = intent.getStringExtra(EXTRA_MESSAGE);
I'm not going to rewrite the entire program for you. You'll have to figure out now what to do with the arguments. Maybe you can now store them in private static variables, but I don't know enough about your program to be able to say if that will work. A better solution would be to pass the arguments through the various methods that you've defined until they get down to the methods where they are used.

"Malformed request" error when making a call in Twilio Android client

I'm trying to integrate the Twilio client into a larger application. Everything seems to work fine until I call device.connect(parameters, connectionListener). I get the 31100 Generic Malformed Request error and that's it.
On the same device, using the same Twilio account and the same Twilio application, the sample code supplied with the Twilio Android SDK (MonkeyPhone) works perfectly.
I can't find any more details about what the error means or what are the possible causes. While I'm assuming that I'm sending invalid data, I don't see how is that possible. The Capability Token is OK, I've verified it against the one generated in the MonkeyPhone sample app. Creating a Device works fine, no errors. The error is thrown even when I'm not sending any parameters in the connect() method. The onConnecting() method of the ConnectionListener gets called, but then the onDisconnected(Connection inConnection, int inErrorCode, String inErrorMessage) is called with the Malformed Request error.
The code for the Voice TwiML is working fine, it's just a simple PHP script generating the most simple <Dial> verb possible:
<Response>
<Dial>someone</Dial>
</Response>
Other specific information... I'm running another service in my application, used to do various other operations. Could this interfere in some way? Also, I'm using a trial account and I'm living in Romania, where calling real phone numbers is not supported (but I'm not using phone numbers anyway). Could this affect me in any way?
I apologize in advance for throwing the huge wall of code, but I hope a second pair of eyes can spot something wrong. This is the version of the code most similar to the MonkeyPhone sample. The only difference is that I'm using an AsyncTask to get the capability token (the JsonAsyncRequestWithError class.
public class MonkeyPhone implements Twilio.InitListener, DeviceListener {
private static final String TAG = "MonkeyPhone";
private Context context;
private Device device;
private Connection connection;
public MonkeyPhone(Context context) {
this.context = context;
Twilio.initialize(context, this /* Twilio.InitListener */);
}
#Override
/* Twilio.InitListener method */
public void onInitialized() {
Log.d(TAG, "Twilio SDK is ready");
// the Emulator has a somewhat unique "product" name
String clientName = "doug";
HttpGet get = new HttpGet("http://teamphoenix.zzl.org/capability.php?ClientName=" + clientName);
JsonAsyncRequestWithError asyncRequestWithError = new JsonAsyncRequestWithError(context, "test", new AsyncRequestWithErrorListener() {
#Override
public void onResult(AsyncRequestResponse response, Object destination) {
createDevice(response.getMessage());
}
#Override
public void onErrorResult(AsyncRequestResponse response, Object destination) {
}
});
asyncRequestWithError.execute(get);
}
public void createDevice(String token) {
try {
device = Twilio.createDevice(token, this /* DeviceListener */);
Intent intent = new Intent(context, SpringshotPhoneActivity.class);
PendingIntent pendingIntent = PendingIntent.getActivity(context, 0, intent, PendingIntent.FLAG_UPDATE_CURRENT);
device.setIncomingIntent(pendingIntent);
} catch (Exception e) {
Log.e(TAG, "", e);
}
}
#Override
/* Twilio.InitListener method */
public void onError(Exception e) {
Log.e(TAG, "Twilio SDK couldn't start: " + e.getLocalizedMessage());
}
#Override
/* DeviceListener method */
public void onStartListening(Device inDevice) {
Log.i(TAG, "Device is now listening for incoming connections");
}
#Override
/* DeviceListener method */
public void onStopListening(Device inDevice) {
Log.i(TAG, "Device is no longer listening for incoming connections");
}
#Override
/* DeviceListener method */
public void onStopListening(Device inDevice, int inErrorCode, String inErrorMessage) {
Log.i(TAG, "Device is no longer listening for incoming connections due to error " + inErrorCode + ": " + inErrorMessage);
}
#Override
/* DeviceListener method */
public boolean receivePresenceEvents(Device inDevice) {
return false; // indicate we don't care about presence events
}
#Override
/* DeviceListener method */
public void onPresenceChanged(Device inDevice, PresenceEvent inPresenceEvent) {
}
public void connect(String phoneNumber) {
Map<String, String> parameters = new HashMap<String, String>(1);
parameters.put("PhoneNumber", phoneNumber);
/// ---------------- THIS IS THE CALL THAT FAILS ------------------------------------//
connection = device.connect(parameters, null /* ConnectionListener */);
if (connection == null)
Log.w(TAG, "Failed to create new connection");
}
public void disconnect() {
if (connection != null) {
connection.disconnect();
connection = null;
}
}
public void handleIncomingConnection(Device inDevice, Connection inConnection) {
Log.i(TAG, "Device received incoming connection");
if (connection != null)
connection.disconnect();
connection = inConnection;
connection.accept();
}
#Override
protected void finalize() {
if (connection != null)
connection.disconnect();
if (device != null)
device.release();
}
}
Thank you very much!

I figured out the problem. Apparently, I had to read the InputStream from the server using the UTF-8 encoding (even if there are no special characters in the token).
char[] buf = new char[1024];
InputStream is = response.getEntity().getContent();
StringBuilder out = new StringBuilder();
Reader in = new InputStreamReader(is, "UTF-8");
int bin;
while ((bin = in.read(buf, 0, buf.length)) >= 0) {
out.append(buf, 0, bin);
}
return out.toString();

How to be notified on wifi network status change?

I am writing an app that connects to a telnet server via wifi. I have a service that manages the socket connection. It all works fine, but when the phone sleeps it disconnects the wifi radio, which causes the socket connection to break (and throws a SocketException).
I feel like I should be able to set up a a broadcast receiver whose onResume() method is called when the wifi network connection is lost, and that would allow me to gracefully shut down the socket, and re-open it if the network is immediately re-connected. But I can't find anything like that in the doc or via searching.
Service code is here if you want it, thanks for the help, I really appreciate it!
package com.wingedvictorydesign.LightfactoryRemote;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.net.InetSocketAddress;
import java.net.Socket;
import java.net.SocketException;
import java.net.SocketTimeoutException;
import android.app.Notification;
import android.app.NotificationManager;
import android.app.PendingIntent;
import android.app.Service;
import android.content.Intent;
import android.os.IBinder;
import android.os.RemoteCallbackList;
import android.os.RemoteException;
import android.text.Editable;
import android.util.Log;
import android.widget.Toast;
import android.os.Debug;
/**
* #author Max
*/
public class TelnetService extends Service {
private final int DISCONNECTED = 0;
private final int CONNECTED = 1;
// place notifications in the notification bar
NotificationManager mNM;
protected InputStream in;
protected OutputStream out;
protected Socket socket;
// the socket timeout, to prevent blocking if the server connection is lost.
protected final int SO_TIMEOUT = 250;
// holds the incoming stream from socket until it is ready to be read.
BufferedReader inputBuffer;
final RemoteCallbackList<TelnetServiceCallback> mCallbacks =
new RemoteCallbackList<TelnetServiceCallback>();
#Override
public void onCreate() {
super.onCreate();
Log.d("LightfactoryRemote", "TelnetService onCreate()");
mNM = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);
}// end onCreate()
#Override
public void onDestroy() {
super.onDestroy();
Log.d("LightfactoryRemote", "TelnetService onDestroy()");
// Cancel the persistent notification, if it hasn't been already.
mNM.cancel(R.string.telnet_service_connected);
}// end onDestroy()
#Override
public IBinder onBind(Intent intent) {
Log.d("LightfactoryRemote", "TelnetService onBind()");
return mBinder;
}
#Override
public boolean onUnbind(Intent intent) {
super.onUnbind(intent);
Log.d("LightfactoryRemote", "TelnetService onUnBind()");
return true;
}
#Override
public void onStart(Intent intent, int startId) {
super.onStart(intent, startId);
Log.d("TelnetService", "TelnetService onStart()");
}
private final TelnetServiceInterface.Stub mBinder =
new TelnetServiceInterface.Stub() {
public void registerCallback(TelnetServiceCallback cb) {
if (cb != null) mCallbacks.register(cb);
}
public void unregisterCallback(TelnetServiceCallback cb) {
if (cb != null) mCallbacks.unregister(cb);
}
public String connectToTelnet(String Host, int Port)
throws RemoteException {
// android.os.Debug.waitForDebugger();
String hostInfo = null;
try {
socket = new java.net.Socket();
socket.setSoTimeout(SO_TIMEOUT);
socket.connect(new InetSocketAddress(Host, Port), 10000); //setup
// the port with a timeout of 10sec.
out = socket.getOutputStream();
/*
* in is wrapped in a reader, then in a Buffered reader. This is
* supposedly better for performance, and allows us to read a
* line at a time using the readLine() method.
*/
inputBuffer = new BufferedReader(new InputStreamReader(
socket.getInputStream()));
} catch (java.io.IOException e) {
Log.d("TelnetService.java", "Connection failed! " + e);
/*
* if the connection fails, return null for serverResponse,
* which will be handled appropriately on the client side.
*/
return hostInfo;
}
// now that the command has been sent, read the response.
hostInfo = readBuffer();
Log.d("TelnetService.java", hostInfo);
// notify the user that we are connected
showNotification(CONNECTED, Host, Port);
return hostInfo;
}// end connectToTelnet
/**
* Tests for a currently active connection. Three cases must be
* distinguished. 1. A connection attempt has not been made. Return
* false. 2. A connection attempt has been made, and socket is
* initialized, but no connection is active. isConnected() returns
* false. 3. A connection is active. isConnected() returns true.
*/
public boolean areYouThere() {
if (socket != null) {
boolean connectStatus = socket.isConnected();
return connectStatus;
} else {
return false;
}
}// end areYouThere
public void disconnect() {
try {
if (inputBuffer != null) {
inputBuffer.close();
}
if (socket != null) {
socket.close();
}
} catch (IOException e) {}
// Cancel the persistent notification.
mNM.cancel(R.string.telnet_service_connected);
}// end disconnect()
/**
* send the string to the telnet server, and return the response from
* server If the connection is lost, an IOException results, so return
* null to be handled appropriately on the client-side.
*
* #throws RemoteException
*/
public String sendToTelnet(String toTelnet) throws RemoteException {
if (out == null) {
/*
* if out is still null, no connection has been made. Throw
* RemoteException to be handled on the client side.
*/
throw new RemoteException();
} else {
byte arr[];
arr = (toTelnet + "\r" + "\n").getBytes();
try {
out.write(arr);
// now that the command has been sent, read the response.
String serverResponse = readBuffer();
return serverResponse;
} catch (IOException e) {
/*
* if a connection was made, but then lost, we end up here.
* throw a Remoteexception for handling by the client.
*/
Log.d("TelnetService", "IO exception" + e);
disconnect();
throw new RemoteException();
}
}// end else
}// end sendToTelnet
};// end ConnectService.Stub class
public String readBuffer() {
StringBuilder serverResponse = new StringBuilder();
int character;
try {
// keep reading new lines into line until there are none left.
while (inputBuffer.ready()) {
/*
* as each character is read, append it to serverResponse,
* throwing away the carriage returns (which read as glyphs),
* and the ">" prompt symbols.
*/
character = inputBuffer.read();
if ((character != 13) && (character != 62)) {
serverResponse.append((char) character);
}
}
}// end try
catch (SocketTimeoutException e) {
Log.d("TelnetService read()", "SocketTimeoutException");
} catch (IOException e) {
Log.d("TelnetService read()", "read() IO exception" + e);
}
return serverResponse.toString();
}
/**
* Show a notification while this service is running.
*/
private void showNotification(int event, String Host, int Port) {
// In this sample, we'll use the same text for the ticker and the
// expanded notification
CharSequence notificationText = "Connected to " + Host + " : " + Port;
// Set the icon, scrolling text and timestamp
Notification notification = new Notification(
R.drawable.notbar_connected, notificationText,
System.currentTimeMillis());
// set the notification not to clear when the user hits
// "Clear All Notifications"
notification.flags |= Notification.FLAG_NO_CLEAR;
// The PendingIntent to launch our activity if the user selects this
// notification
PendingIntent contentIntent = PendingIntent.getActivity(this, 0,
new Intent(this, LightfactoryRemote.class), 0);
// Set the info for the views that show in the notification panel.
notification.setLatestEventInfo(this,
getText(R.string.telnet_service_connected), notificationText,
contentIntent);
// Send the notification.
// We use a string id because it is a unique number. We use it later to
// cancel.
mNM.notify(R.string.telnet_service_connected, notification);
}// end showNotification()
} // end TelnetConnection

Register a BroadcastReceiver for ConnectivityManager.CONNECTIVITY_ACTION. In the onReceive handler you can call NetworkInfo info = (NetworkInfo) intent.getParcelableExtra(ConnectivityManager.EXTRA_NETWORK_INFO) and then info.getType() and check for ConnectivityManager.TYPE_WIFI and do what you want then. :)

*set these permissions in your manifest
<uses-permission android:name="android.permission.CHANGE_WIFI_STATE" />
<uses-permission android:name="android.permission.CHANGE_NETWORK_STATE" />
*Register a BroadcastReceiver for these actions filters in your manifest
<receiver android:name="com.myBroadcastReceiver" >
<intent-filter>
<action android:name="android.net.wifi.supplicant.CONNECTION_CHANGE" />
<action android:name="android.net.wifi.STATE_CHANGE" />
</intent-filter>
</receiver>
*Define your BroadcastReceiver´s implementation
public class myBroadcastReceiver extends BroadcastReceiver {
#Override
public void onReceive(Context context, Intent intent) {
WifiManager wifiManager = (WifiManager) context
.getSystemService(Context.WIFI_SERVICE);
NetworkInfo networkInfo = intent
.getParcelableExtra(WifiManager.EXTRA_NETWORK_INFO);
if (networkInfo != null) {
Log.d(AppConstants.TAG, "Type : " + networkInfo.getType()
+ "State : " + networkInfo.getState());
if (networkInfo.getType() == ConnectivityManager.TYPE_WIFI) {
//get the different network states
if (networkInfo.getState() == NetworkInfo.State.CONNECTING || networkInfo.getState() == NetworkInfo.State.CONNECTED) {
}
}
}
}
}

I know this is an old question but see the following developer documentation:
http://developer.android.com/training/monitoring-device-state/connectivity-monitoring.html

Not sure as to the exact way to do this but I think the ConnectivityManager would be a good place to start.
http://developer.android.com/reference/android/net/ConnectivityManager.html
you can get an instance of this class by calling Context.getSystemService(Context.CONNECTIVITY_SERVICE)
There are also some other good classes in android.net that you can use.
Hope that helps.