I am trying to advertise in NEXUS 9 and getting the error of ADVERTISE_FAILED_DATA_TOO_LARGE. It was working perfectly fine when I was adding the service after successfully advertising but if I add the service through Advertise Data builder so that other devices can filter while scanning, I get error code 1 i.e ADVERTISE_FAILED_DATA_TOO_LARGE
a) Working Code
public void startAdvertisingService() {
AdvertiseSettings settings = new AdvertiseSettings.Builder()
.setTxPowerLevel(AdvertiseSettings.ADVERTISE_TX_POWER_HIGH)
.setTimeout(0)
.setAdvertiseMode(AdvertiseSettings.ADVERTISE_MODE_LOW_LATENCY)
.build();
AdvertiseData.Builder advertiseData = new AdvertiseData.Builder();
advertiseData.setIncludeDeviceName(true);
BluetoothLeAdvertiser myBluetoothLeAdvertiser = btAdapter.getBluetoothLeAdvertiser();
myBluetoothLeAdvertiser.stopAdvertising(mAdvertiseCallback);
myBluetoothLeAdvertiser.startAdvertising(settings, advertiseData.build(),mAdvertiseCallback);
}
private AdvertiseCallback mAdvertiseCallback = new AdvertiseCallback() {
@Override
public void onStartSuccess(AdvertiseSettings settingsInEffect) {
super.onStartSuccess(settingsInEffect);
BLEBroadcast();
}
@Override
public void onStartFailure(int errorCode) {
String description = "";
if (errorCode == AdvertiseCallback.ADVERTISE_FAILED_FEATURE_UNSUPPORTED)
description = "ADVERTISE_FAILED_FEATURE_UNSUPPORTED";
else if (errorCode == AdvertiseCallback.ADVERTISE_FAILED_TOO_MANY_ADVERTISERS)
description = "ADVERTISE_FAILED_TOO_MANY_ADVERTISERS";
else if (errorCode == AdvertiseCallback.ADVERTISE_FAILED_ALREADY_STARTED)
description = "ADVERTISE_FAILED_ALREADY_STARTED";
else if (errorCode == AdvertiseCallback.ADVERTISE_FAILED_DATA_TOO_LARGE)
description = "ADVERTISE_FAILED_DATA_TOO_LARGE";
else if (errorCode == AdvertiseCallback.ADVERTISE_FAILED_INTERNAL_ERROR)
description = "ADVERTISE_FAILED_INTERNAL_ERROR";
else description = "unknown";
}
};
and also adding the service:
void BLEBroadcast() {
BluetoothGattCharacteristic characteristic = new BluetoothGattCharacteristic(characteristicUUID, BluetoothGattCharacteristic.PROPERTY_NOTIFY | BluetoothGattCharacteristic.PROPERTY_INDICATE | BluetoothGattCharacteristic.PROPERTY_READ | BluetoothGattCharacteristic.PROPERTY_WRITE, BluetoothGattCharacteristic.PERMISSION_READ | BluetoothGattCharacteristic.PERMISSION_WRITE);
BluetoothGattDescriptor desc = new BluetoothGattDescriptor(descriptorUUID, BluetoothGattDescriptor.PERMISSION_READ | BluetoothGattDescriptor.PERMISSION_WRITE);
desc.setValue("".getBytes());
characteristic.addDescriptor(desc);
BluetoothGattService service = new BluetoothGattService(serviceUUID, BluetoothGattService.SERVICE_TYPE_PRIMARY);
service.addCharacteristic(characteristic);
mGattServer.addService(service);
}
b) Not working when adding service initially so that can be discovered by central through filter:
calling BLEBroadcast()
function before calling startAdvertisingService()
and also adding
AdvertiseData.Builder advertiseData = new AdvertiseData.Builder();
advertiseData.addServiceUuid(new ParcelUuid(serviceUUID));
gives advertising failure with error code 1.