SignalStrengthsSource

```
public final class SignalStrengthsSource

                    
```
Attempts to fetch fresh SignalStrength using signal strength listener. If this approach fails then looks to cache in TelephonyManager.
Cache is available since Build.VERSION_CODES.P.

Constructor Summary

Constructors
Constructor	Description
`SignalStrengthsSource()`

Method Summary

Modifier and Type	Method	Description
`final SignalStrength`	`get(TelephonyManager telephonyManager, Integer subId)`	Registers a signal strength listener and awaits data.

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

- Constructor Detail
  - SignalStrengthsSource
```
SignalStrengthsSource()
```
- Method Detail
  - get
```
 final SignalStrength get(TelephonyManager telephonyManager, Integer subId)
```
    Registers a signal strength listener and awaits data. After 1000 milliseconds time outs if nothing is delivered.
    On Android O and newer directly grabs ServiceState from TelephonyManager.