ServiceStateSource

```
public final class ServiceStateSource

                    
```
On Android N and older fetches ServiceState using service state listener. On Android O and newer takes ServiceState from TelephonyManager.getServiceState.

Constructor Summary

Constructors
Constructor	Description
`ServiceStateSource()`

Method Summary

Modifier and Type	Method	Description
`final ServiceState`	`get(TelephonyManager telephonyManager, Integer subId)`	Registers service state listener and awaits data.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - ServiceStateSource
```
ServiceStateSource()
```
- Method Detail
  - get
```
@RequiresPermission(allOf = {android.permission.READ_PHONE_STATE, android.permission.ACCESS_COARSE_LOCATION}) final ServiceState get(TelephonyManager telephonyManager, Integer subId)
```
    Registers service state listener and awaits data. After 1000 milliseconds time outs if nothing is delivered.
    On Android O and newer directly grabs ServiceState from TelephonyManager.