Nearby API MessageListener doesn't trigger callbacks

I am trying to send Beacon Messages from my Eddystone Beacon (micro:bit) to my Android application using Nearby API. I literally copied all their code from documentation but onLost and onFound callbacks are never triggered. The application starts listening and nothing happens then. I know that the beacon is just fine because I can receive messages on Bluetooth Beacon Interactor on my PC.
This is my code:

 mMessageListener = new MessageListener() {

     @Override

     public void onFound(Message message) {

         Log.d("HomepageActivity", "Found message: " + new String(message.getContent()));

         mMessageContent.setText(message.getContent().toString());

     }



     @Override

     public void onLost(Message message) {

         Log.d("HomepageActivity", "Lost sight of message: " + new String(message.getContent()));

     }

 };





@OnClick(R.id.mSubscribe)

public void subscribe() {

    Log.i("HomepageActivity", "Subscribing.");

    SubscribeOptions options = new SubscribeOptions.Builder()

            .setStrategy(Strategy.BLE_ONLY)

            .build();

    Nearby.getMessagesClient(this).subscribe(mMessageListener, options);

}`

This is the whole error message I get in LOGCAT: https://pastebin.com/1UwJ37TV

edited Nov 23 '18 at 20:51

Martin Zeitler

17.5k34168

asked Nov 23 '18 at 20:24

doksara

add a comment |

 mMessageListener = new MessageListener() {

     @Override

     public void onFound(Message message) {

         Log.d("HomepageActivity", "Found message: " + new String(message.getContent()));

         mMessageContent.setText(message.getContent().toString());

     }



     @Override

     public void onLost(Message message) {

         Log.d("HomepageActivity", "Lost sight of message: " + new String(message.getContent()));

     }

 };





@OnClick(R.id.mSubscribe)

public void subscribe() {

    Log.i("HomepageActivity", "Subscribing.");

    SubscribeOptions options = new SubscribeOptions.Builder()

            .setStrategy(Strategy.BLE_ONLY)

            .build();

    Nearby.getMessagesClient(this).subscribe(mMessageListener, options);

}`

This is the whole error message I get in LOGCAT: https://pastebin.com/1UwJ37TV

edited Nov 23 '18 at 20:51

Martin Zeitler

17.5k34168

asked Nov 23 '18 at 20:24

doksara

add a comment |

 mMessageListener = new MessageListener() {

     @Override

     public void onFound(Message message) {

         Log.d("HomepageActivity", "Found message: " + new String(message.getContent()));

         mMessageContent.setText(message.getContent().toString());

     }



     @Override

     public void onLost(Message message) {

         Log.d("HomepageActivity", "Lost sight of message: " + new String(message.getContent()));

     }

 };





@OnClick(R.id.mSubscribe)

public void subscribe() {

    Log.i("HomepageActivity", "Subscribing.");

    SubscribeOptions options = new SubscribeOptions.Builder()

            .setStrategy(Strategy.BLE_ONLY)

            .build();

    Nearby.getMessagesClient(this).subscribe(mMessageListener, options);

}`

This is the whole error message I get in LOGCAT: https://pastebin.com/1UwJ37TV

edited Nov 23 '18 at 20:51

Martin Zeitler

17.5k34168

asked Nov 23 '18 at 20:24

doksara

 mMessageListener = new MessageListener() {

     @Override

     public void onFound(Message message) {

         Log.d("HomepageActivity", "Found message: " + new String(message.getContent()));

         mMessageContent.setText(message.getContent().toString());

     }



     @Override

     public void onLost(Message message) {

         Log.d("HomepageActivity", "Lost sight of message: " + new String(message.getContent()));

     }

 };





@OnClick(R.id.mSubscribe)

public void subscribe() {

    Log.i("HomepageActivity", "Subscribing.");

    SubscribeOptions options = new SubscribeOptions.Builder()

            .setStrategy(Strategy.BLE_ONLY)

            .build();

    Nearby.getMessagesClient(this).subscribe(mMessageListener, options);

}`

This is the whole error message I get in LOGCAT: https://pastebin.com/1UwJ37TV

android bluetooth-lowenergy

edited Nov 23 '18 at 20:51

Martin Zeitler

17.5k34168

asked Nov 23 '18 at 20:24

doksara

edited Nov 23 '18 at 20:51

Martin Zeitler

17.5k34168

asked Nov 23 '18 at 20:24

doksara

edited Nov 23 '18 at 20:51

Martin Zeitler

17.5k34168

edited Nov 23 '18 at 20:51

Martin Zeitler

17.5k34168

edited Nov 23 '18 at 20:51

Martin Zeitler

17.5k34168

asked Nov 23 '18 at 20:24

doksara

asked Nov 23 '18 at 20:24

doksara

asked Nov 23 '18 at 20:24

doksara

add a comment |

1 Answer
1

active

oldest

votes

the SubscribeOptions.Builder has one method .setCallback() ...

which permit to assign a SubscribeCallback (which you might be missing).

that callback only has one method onExpired(). ignoring the expiry most likely caused the crash.

edited Nov 23 '18 at 21:05

answered Nov 23 '18 at 20:54

Martin Zeitler

17.5k34168

Hmm, I still don't understand. So I have to add methods onFound() and onLost() in SubscribeCallback or what? Give me more details please.

– doksara
Nov 24 '18 at 19:19

@doksara you need both, the listener and the callback. subscribe() may never be called ...because the logcat does not read Subscribing anywhere. this means the click event already fails. I'd replace @OnClick(R.id.mSubscribe) with something that actually binds the click event. the stack-trace also hints for the onExpired() callback being ignored.

– Martin Zeitler
Nov 24 '18 at 21:36

Actually, the event suceeds..there is a message in LogCat: 2018-11-24 22:42:26.046 6205-6205/hr.foi.air.microsensor I/HomepageActivity: Subscribing. But after that, simply nothing happens. I tried moving them under same function but it ain't helping.

– doksara
Nov 24 '18 at 21:45

@doksara it doesn't ...when I search the page for Subscribing it reads 0/0. this means that Log.i("HomepageActivity", "Subscribing."); is never being called. and if there are indeed attempts to subscribe, the connection might not be in the proper state to do so - or it may subscribe somewhere else in code and then subscribe twice. search GitHub for Nordic Semiconductor, for some proven to be working BLE examples.

– Martin Zeitler
Nov 24 '18 at 21:52

add a comment |

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1 Answer
1

active

oldest

votes

1 Answer
1

active

oldest

votes

the SubscribeOptions.Builder has one method .setCallback() ...

which permit to assign a SubscribeCallback (which you might be missing).

that callback only has one method onExpired(). ignoring the expiry most likely caused the crash.

edited Nov 23 '18 at 21:05

answered Nov 23 '18 at 20:54

Martin Zeitler

17.5k34168

Hmm, I still don't understand. So I have to add methods onFound() and onLost() in SubscribeCallback or what? Give me more details please.

– doksara
Nov 24 '18 at 19:19

@doksara you need both, the listener and the callback. subscribe() may never be called ...because the logcat does not read Subscribing anywhere. this means the click event already fails. I'd replace @OnClick(R.id.mSubscribe) with something that actually binds the click event. the stack-trace also hints for the onExpired() callback being ignored.

– Martin Zeitler
Nov 24 '18 at 21:36

Actually, the event suceeds..there is a message in LogCat: 2018-11-24 22:42:26.046 6205-6205/hr.foi.air.microsensor I/HomepageActivity: Subscribing. But after that, simply nothing happens. I tried moving them under same function but it ain't helping.

– doksara
Nov 24 '18 at 21:45

@doksara it doesn't ...when I search the page for Subscribing it reads 0/0. this means that Log.i("HomepageActivity", "Subscribing."); is never being called. and if there are indeed attempts to subscribe, the connection might not be in the proper state to do so - or it may subscribe somewhere else in code and then subscribe twice. search GitHub for Nordic Semiconductor, for some proven to be working BLE examples.

– Martin Zeitler
Nov 24 '18 at 21:52

add a comment |

the SubscribeOptions.Builder has one method .setCallback() ...

which permit to assign a SubscribeCallback (which you might be missing).

that callback only has one method onExpired(). ignoring the expiry most likely caused the crash.

edited Nov 23 '18 at 21:05

answered Nov 23 '18 at 20:54

Martin Zeitler

17.5k34168

Hmm, I still don't understand. So I have to add methods onFound() and onLost() in SubscribeCallback or what? Give me more details please.

– doksara
Nov 24 '18 at 19:19

@doksara you need both, the listener and the callback. subscribe() may never be called ...because the logcat does not read Subscribing anywhere. this means the click event already fails. I'd replace @OnClick(R.id.mSubscribe) with something that actually binds the click event. the stack-trace also hints for the onExpired() callback being ignored.

– Martin Zeitler
Nov 24 '18 at 21:36

Actually, the event suceeds..there is a message in LogCat: 2018-11-24 22:42:26.046 6205-6205/hr.foi.air.microsensor I/HomepageActivity: Subscribing. But after that, simply nothing happens. I tried moving them under same function but it ain't helping.

– doksara
Nov 24 '18 at 21:45

@doksara it doesn't ...when I search the page for Subscribing it reads 0/0. this means that Log.i("HomepageActivity", "Subscribing."); is never being called. and if there are indeed attempts to subscribe, the connection might not be in the proper state to do so - or it may subscribe somewhere else in code and then subscribe twice. search GitHub for Nordic Semiconductor, for some proven to be working BLE examples.

– Martin Zeitler
Nov 24 '18 at 21:52

add a comment |

the SubscribeOptions.Builder has one method .setCallback() ...

which permit to assign a SubscribeCallback (which you might be missing).

that callback only has one method onExpired(). ignoring the expiry most likely caused the crash.

edited Nov 23 '18 at 21:05

answered Nov 23 '18 at 20:54

Martin Zeitler

17.5k34168

the SubscribeOptions.Builder has one method .setCallback() ...

which permit to assign a SubscribeCallback (which you might be missing).

that callback only has one method onExpired(). ignoring the expiry most likely caused the crash.

edited Nov 23 '18 at 21:05

answered Nov 23 '18 at 20:54

Martin Zeitler

17.5k34168

edited Nov 23 '18 at 21:05

answered Nov 23 '18 at 20:54

Martin Zeitler

17.5k34168

answered Nov 23 '18 at 20:54

Martin Zeitler

17.5k34168

answered Nov 23 '18 at 20:54

Martin Zeitler

17.5k34168

Hmm, I still don't understand. So I have to add methods onFound() and onLost() in SubscribeCallback or what? Give me more details please.

– doksara
Nov 24 '18 at 19:19

@doksara you need both, the listener and the callback. subscribe() may never be called ...because the logcat does not read Subscribing anywhere. this means the click event already fails. I'd replace @OnClick(R.id.mSubscribe) with something that actually binds the click event. the stack-trace also hints for the onExpired() callback being ignored.

– Martin Zeitler
Nov 24 '18 at 21:36

Actually, the event suceeds..there is a message in LogCat: 2018-11-24 22:42:26.046 6205-6205/hr.foi.air.microsensor I/HomepageActivity: Subscribing. But after that, simply nothing happens. I tried moving them under same function but it ain't helping.

– doksara
Nov 24 '18 at 21:45

@doksara it doesn't ...when I search the page for Subscribing it reads 0/0. this means that Log.i("HomepageActivity", "Subscribing."); is never being called. and if there are indeed attempts to subscribe, the connection might not be in the proper state to do so - or it may subscribe somewhere else in code and then subscribe twice. search GitHub for Nordic Semiconductor, for some proven to be working BLE examples.

– Martin Zeitler
Nov 24 '18 at 21:52

add a comment |

Hmm, I still don't understand. So I have to add methods onFound() and onLost() in SubscribeCallback or what? Give me more details please.

– doksara
Nov 24 '18 at 19:19

@doksara you need both, the listener and the callback. subscribe() may never be called ...because the logcat does not read Subscribing anywhere. this means the click event already fails. I'd replace @OnClick(R.id.mSubscribe) with something that actually binds the click event. the stack-trace also hints for the onExpired() callback being ignored.

– Martin Zeitler
Nov 24 '18 at 21:36

Actually, the event suceeds..there is a message in LogCat: 2018-11-24 22:42:26.046 6205-6205/hr.foi.air.microsensor I/HomepageActivity: Subscribing. But after that, simply nothing happens. I tried moving them under same function but it ain't helping.

– doksara
Nov 24 '18 at 21:45

@doksara it doesn't ...when I search the page for Subscribing it reads 0/0. this means that Log.i("HomepageActivity", "Subscribing."); is never being called. and if there are indeed attempts to subscribe, the connection might not be in the proper state to do so - or it may subscribe somewhere else in code and then subscribe twice. search GitHub for Nordic Semiconductor, for some proven to be working BLE examples.

– Martin Zeitler
Nov 24 '18 at 21:52

Hmm, I still don't understand. So I have to add methods onFound() and onLost() in SubscribeCallback or what? Give me more details please.

– doksara
Nov 24 '18 at 19:19

@doksara you need both, the listener and the callback. subscribe() may never be called ...because the logcat does not read Subscribing anywhere. this means the click event already fails. I'd replace @OnClick(R.id.mSubscribe) with something that actually binds the click event. the stack-trace also hints for the onExpired() callback being ignored.

– Martin Zeitler
Nov 24 '18 at 21:36

Actually, the event suceeds..there is a message in LogCat: 2018-11-24 22:42:26.046 6205-6205/hr.foi.air.microsensor I/HomepageActivity: Subscribing. But after that, simply nothing happens. I tried moving them under same function but it ain't helping.

– doksara
Nov 24 '18 at 21:45

@doksara it doesn't ...when I search the page for Subscribing it reads 0/0. this means that Log.i("HomepageActivity", "Subscribing."); is never being called. and if there are indeed attempts to subscribe, the connection might not be in the proper state to do so - or it may subscribe somewhere else in code and then subscribe twice. search GitHub for Nordic Semiconductor, for some proven to be working BLE examples.

– Martin Zeitler
Nov 24 '18 at 21:52

add a comment |

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