BLETransmitter (herald 2.1.0-beta1 API)

All Superinterfaces:

Sensor

All Known Implementing Classes:

ConcreteBLETransmitter
```
public interface BLETransmitter
extends Sensor
```
Beacon transmitter broadcasts a fixed service UUID to enable background scan by iOS. When iOS enters background mode, the UUID will disappear from the broadcast, so Android devices need to search for Apple devices and then connect and discover services to read the UUID.

- Field Summary
  
  Fields
  Modifier and Type Field Description
  
  static java.util.Queue<SensorDelegate> delegates
  Delegates for receiving beacon detection events.
- Method Summary
  
  All Methods Instance Methods Abstract Methods
  Modifier and Type Method Description
  
  boolean isSupported()
  Is transmitter supported.
  
  PayloadData payloadData()
  Get current payload.
  - Methods inherited from interface io.heraldprox.herald.sensor.Sensor
    add, start, stop

- Field Detail
  - delegates
```
@NonNull
static final java.util.Queue<SensorDelegate> delegates
```
    Delegates for receiving beacon detection events. This is necessary because some Android devices (Samsung J6) does not support BLE transmit, thus making the beacon characteristic writable offers a mechanism for such devices to detect a beacon transmitter and make their own presence known by sending its own beacon code and RSSI as data to the transmitter.
- Method Detail
  - payloadData
```
@NonNull
PayloadData payloadData()
```
    Get current payload.
    
    Returns:
    
    The current PayloadData for this device.
  - isSupported
```
boolean isSupported()
```
    Is transmitter supported.
    
    Returns:
    
    True if BLE advertising is supported.