adriancretu/beacons-android

Android BLE advertising library

beacons-android's Issues

Raspberry pi 3 with AndroidThing support

@adriancretu It is possible to add support for Raspberry pi 3 with Android Things installed?

EID advertising data different

Hi:
I have create a eddystone EID advertising with setting identitykey, exponent and clockOffset, but when
i scan it with another device and found it is different with the data what i set to it. for example, i set the exponent 9 but the eid i receive is -26.

Is it UTF8 encoded or base 64?

I am using to publish iBeacons, But i don't know in what format this library encodes it.
While I am trying to scan it by Google NearBy, I am not able to read it.
As Google NearBy Doc Says.

mMessageListener = new MessageListener() {
    @Override
    public void onFound(Message message) {
        // Do something with the message here.
        Log.i(TAG, "Message found: " + message);
        Log.i(TAG, "Message string: " + new String(message.getContent()));
        Log.i(TAG, "Message namespaced type: " + message.getNamespace() +
                "/" + message.getType());
    }

    ...
};
Parsing the content depends on the format of the bytes. This example assumes that the content bytes encode a UTF-8 string, but your beacon message can encode other byte formats (for example a serialized protocol buffer)

So when I am trying to Log the above method provided by Google Nearby Messages API.

Android 8 support

I am trying to use the library to broadcast a Beacon from my Google Pixel XL running Android 8.1. I am facing two issues:

• My sample app was initially targeting SDK 26. Because of the use of Services and Broadcast Receivers that haven't been ported to support the new Oreo, the notification that a beacon is broadcasting wasn't showing up. Targeting SDK 25 in my sample app helped solving this issue.
• Even after that, I couldn't get my Samsung Galaxy S8, running Android 7 to detect my beacon. Listening to events on the Pixel XL, I receive EVENT_ADVERTISER_ADDED followed by a EVENT_ADVERTISER_STARTED and that's it, nothing to indicate an error. Logcat has a few BLE related errors that might be relevant. Note that if I run my sample app on the Galaxy S8, then my Pixel can successfully detect the beacon. I tried to reproduce on another S8 and had same results, indicating the issue seems to be with the Pixel XL.

Logcat excerpt:

01-02 11:10:00.182 1326-1794/? W/bt_btif: bta_gattc_conn_cback() - cif=3 connected=0 conn_id=3 reason=0x0100
01-02 11:10:00.182 1326-1794/? W/bt_btif: bta_gattc_conn_cback() - cif=4 connected=0 conn_id=4 reason=0x0100
01-02 11:10:00.182 1326-1794/? W/bt_btif: bta_gattc_conn_cback() - cif=6 connected=0 conn_id=6 reason=0x0100
01-02 11:10:00.183 1326-1794/? W/bt_btif: bta_gattc_conn_cback() - cif=7 connected=0 conn_id=7 reason=0x0100
01-02 11:10:00.183 1326-1794/? W/bt_btif: bta_gattc_conn_cback() - cif=8 connected=0 conn_id=8 reason=0x0100
01-02 11:10:00.185 2153-2673/? D/BluetoothGattServer: onServerConnectionState() - status=0 serverIf=5 device=E0:49:D9:C3:F7:C9
01-02 11:10:00.187 7708-7720/? D/BluetoothGatt: onClientConnectionState() - status=133 clientIf=8 device=E0:49:D9:C3:F7:C9
01-02 11:10:00.204 7708-7852/? D/BluetoothGatt: cancelOpen() - device: E0:49:D9:C3:F7:C9
01-02 11:10:00.207 1326-1794/? E/bt_btif: No such connection need to be cancelled
01-02 11:10:00.208 1326-1794/? E/bt_stack: [ERROR:bta_gattc_utils.cc(509)] bta_gattc_mark_bg_conn unable to find the bg connection mask for: e0:49:d9:c3:f7:c9
01-02 11:10:00.218 7708-7852/? D/BluetoothGatt: close()
01-02 11:10:00.218 7708-7852/? D/BluetoothGatt: unregisterApp() - mClientIf=8
01-02 11:10:00.219 7708-7961/? D/BluetoothGatt: connect() - device: D6:11:68:96:F7:7D, auto: false
01-02 11:10:00.219 7708-7961/? D/BluetoothGatt: registerApp()
01-02 11:10:00.220 7708-7961/? D/BluetoothGatt: registerApp() - UUID=8441d0b4-251f-4c79-b1f0-7a5cd3306cc6
01-02 11:10:00.224 1326-1794/? I/bt_stack: [INFO:gatt_api.cc(1004)] GATT_Register
01-02 11:10:00.225 1326-1794/? I/bt_stack: [INFO:gatt_api.cc(1027)] allocated gatt_if=8
01-02 11:10:00.231 7708-7720/? D/BluetoothGatt: onClientRegistered() - status=0 clientIf=8
01-02 11:10:00.236 1326-1794/? I/bt_stack: [INFO:gatt_api.cc(1168)] GATT_Connectgatt_if=8 d6:11:68:96:f7:7d
01-02 11:10:01.951 887-1560/? I/WifiService: releaseMulticastLock uid=10156
01-02 11:10:02.525 7708-7708/? D/BluetoothManager: getConnectedDevices
01-02 11:10:02.531 2519-2519/? I/BgTaskExecutorImpl: Starting EXCLUSIVE background task send_pending_events_to_clearcut.
01-02 11:10:02.554 2519-2519/? W/SearchService: Abort, client detached.
01-02 11:10:02.555 2519-11929/? I/EventLogSendingHelper: Sending log events.
01-02 11:10:02.590 2153-5407/? I/Places: ?: PlacesBleScanner stop()
01-02 11:10:02.591 2153-2153/? I/BeaconBle: Places requested to stop scan
01-02 11:10:02.597 2153-2153/? I/BeaconBle: Scan canceled successfully.
01-02 11:10:02.606 2153-5407/? I/PlaceInferenceEngine: [anon] Changed inference mode: 105
01-02 11:10:04.564 887-2347/? I/ActivityManager: Killing 9150:com.facebook.katana/u0a296 (adj 906): empty #17```

feature query

This is not actually an issue, but just a question.
I am trying to set some flags on an Advertisement data for my app.
For example , LE limited Discoverable mode as seen here:

1A # Flags value 0x1A = 000011010
bit 0 (OFF) LE Limited Discoverable Mode
bit 1 (ON) LE General Discoverable Mode
bit 2 (OFF) BR/EDR Not Supported
bit 3 (ON) Simultaneous LE and BR/EDR to Same Device Capable (controller)
bit 4 (ON) Simultaneous LE and BR/EDR to Same Device Capable (Host)
default Android BLE library does not allow that. Can I use this library to set these flags ?
if possible, how ?
if not, could it be possible by wrapping the Advertiser part of the Android BLE library ?

"Limit exceed; cannot create more channels"

Hello, we have recently been getting this crash message:

java.lang.IllegalStateException: Limit exceed; cannot create more channels
	at android.os.Parcel.createExceptionOrNull(Parcel.java:2394)
	at android.os.Parcel.createException(Parcel.java:2370)
	at android.os.Parcel.readException(Parcel.java:2353)
	at android.os.Parcel.readException(Parcel.java:2295)
	at android.app.INotificationManager$Stub$Proxy.createNotificationChannels(INotificationManager.java:4340)
	at android.app.NotificationManager.createNotificationChannels(NotificationManager.java:863)
	at android.app.NotificationManager.createNotificationChannel(NotificationManager.java:851)
	at com.uriio.beacons.BleService.updateForegroundNotification(BleService.java:424)
	at com.uriio.beacons.BleService.onAdvertiserStarted(BleService.java:378)
	at com.uriio.beacons.ble.AdvertisersManager.onAdvertiserStarted(AdvertisersManager.java:113)
	at com.uriio.beacons.ble.Advertiser.onStartSuccess(Advertiser.java:102)
	at android.bluetooth.le.BluetoothLeAdvertiser$5.run(BluetoothLeAdvertiser.java:812)
	at android.os.Handler.handleCallback(Handler.java:938)
	at android.os.Handler.dispatchMessage(Handler.java:99)
	at android.os.Looper.loop(Looper.java:246)
	at android.app.ActivityThread.main(ActivityThread.java:8645)
	at java.lang.reflect.Method.invoke(Native Method)
	at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:602)
	at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1130)
Caused by: android.os.RemoteException: Remote stack trace:
	at com.android.server.notification.PreferencesHelper.createNotificationChannel(PreferencesHelper.java:995)
	at com.android.server.notification.NotificationManagerService$12.createNotificationChannelsImpl(NotificationManagerService.java:3978)
	at com.android.server.notification.NotificationManagerService$12.createNotificationChannels(NotificationManagerService.java:3999)
	at android.app.INotificationManager$Stub.onTransact(INotificationManager.java:1710)
	at android.os.Binder.execTransactInternal(Binder.java:1190

It seems the library is somehow looping and creating over 50000 channels, which cause the app to crash. Any ideas what causes this and if there is a way to fix it?

Application feezes when trying to transmit beacons

Hello, I have couple of issue using this library.
I have two different devices:

• Samsung XCover 4S
• Huawei Mate 20 lite

On Samsung occasionally when I try to transmit a beacon, nothing happens for a while and then I get ANR.
On Huawei when I try to transmit beacon, simply nothing happens every time, but I don't get ANR (seems like it fails to access BLE transmitter).

What can I do about it?