# GnssStatus.Callback

Added in [API level 24](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)  
Summary: [Ctors](https://developer.android.com/reference/android/location/GnssStatus.Callback#pubctors) \| [Methods](https://developer.android.com/reference/android/location/GnssStatus.Callback#pubmethods) \| [Inherited Methods](https://developer.android.com/reference/android/location/GnssStatus.Callback#inhmethods)  

# GnssStatus.Callback

*** ** * ** ***

[Kotlin](https://developer.android.com/reference/kotlin/android/location/GnssStatus.Callback "View this page in Kotlin") \|Java


`
public
static

abstract
class
GnssStatus.Callback
`


`

extends `[Object](https://developer.android.com/reference/java/lang/Object)`


`

`


`

|---|--------------------------------------|
| [java.lang.Object](https://developer.android.com/reference/java/lang/Object) ||
| ↳ | android.location.GnssStatus.Callback |

<br />

*** ** * ** ***

Used for receiving notifications when GNSS events happen.  
**See also:**

- [LocationManager.registerGnssStatusCallback(Callback)](https://developer.android.com/reference/android/location/LocationManager#registerGnssStatusCallback(android.location.GnssStatus.Callback))

## Summary

|                                            ### Public constructors                                             ||
|-------------------------------------------------------------------------------------------------------------|---|
| ` `[Callback](https://developer.android.com/reference/android/location/GnssStatus.Callback#Callback())`() ` |

|                                                                                                                                                       ### Public methods                                                                                                                                                       ||
|---------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| ` void` | ` `[onFirstFix](https://developer.android.com/reference/android/location/GnssStatus.Callback#onFirstFix(int))`(int ttffMillis) ` Called when the GNSS system has received its first fix since starting.                                                                                                               |
| ` void` | ` `[onSatelliteStatusChanged](https://developer.android.com/reference/android/location/GnssStatus.Callback#onSatelliteStatusChanged(android.location.GnssStatus))`(`[GnssStatus](https://developer.android.com/reference/android/location/GnssStatus)` status) ` Called periodically to report GNSS satellite status. |
| ` void` | ` `[onStarted](https://developer.android.com/reference/android/location/GnssStatus.Callback#onStarted())`() ` Called when GNSS system has started.                                                                                                                                                                    |
| ` void` | ` `[onStopped](https://developer.android.com/reference/android/location/GnssStatus.Callback#onStopped())`() ` Called when GNSS system has stopped.                                                                                                                                                                    |

| ### Inherited methods |
|-----------------------|---|
| From class ` `[java.lang.Object](https://developer.android.com/reference/java/lang/Object)` ` |--------------------------------------------------------------------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------| | ` `[Object](https://developer.android.com/reference/java/lang/Object)          | ` `[clone](https://developer.android.com/reference/java/lang/Object#clone())`() ` Creates and returns a copy of this object.                                                                                                                                                        | | ` boolean`                                                                     | ` `[equals](https://developer.android.com/reference/java/lang/Object#equals(java.lang.Object))`(`[Object](https://developer.android.com/reference/java/lang/Object)` obj) ` Indicates whether some other object is "equal to" this one.                                             | | ` void`                                                                        | ` `[finalize](https://developer.android.com/reference/java/lang/Object#finalize())`() ` Called by the garbage collector on an object when garbage collection determines that there are no more references to the object.                                                            | | ` final `[Class](https://developer.android.com/reference/java/lang/Class)`<?>` | ` `[getClass](https://developer.android.com/reference/java/lang/Object#getClass())`() ` Returns the runtime class of this `Object`.                                                                                                                                                 | | ` int`                                                                         | ` `[hashCode](https://developer.android.com/reference/java/lang/Object#hashCode())`() ` Returns a hash code value for the object.                                                                                                                                                   | | ` final void`                                                                  | ` `[notify](https://developer.android.com/reference/java/lang/Object#notify())`() ` Wakes up a single thread that is waiting on this object's monitor.                                                                                                                              | | ` final void`                                                                  | ` `[notifyAll](https://developer.android.com/reference/java/lang/Object#notifyAll())`() ` Wakes up all threads that are waiting on this object's monitor.                                                                                                                           | | ` `[String](https://developer.android.com/reference/java/lang/String)          | ` `[toString](https://developer.android.com/reference/java/lang/Object#toString())`() ` Returns a string representation of the object.                                                                                                                                              | | ` final void`                                                                  | ` `[wait](https://developer.android.com/reference/java/lang/Object#wait(long,%20int))`(long timeoutMillis, int nanos) ` Causes the current thread to wait until it is awakened, typically by being *notified* or *interrupted*, or until a certain amount of real time has elapsed. | | ` final void`                                                                  | ` `[wait](https://developer.android.com/reference/java/lang/Object#wait(long))`(long timeoutMillis) ` Causes the current thread to wait until it is awakened, typically by being *notified* or *interrupted*, or until a certain amount of real time has elapsed.                   | | ` final void`                                                                  | ` `[wait](https://developer.android.com/reference/java/lang/Object#wait())`() ` Causes the current thread to wait until it is awakened, typically by being *notified* or *interrupted*.                                                                                             | ||

## Public constructors

### Callback

Added in [API level 24](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)  

```
public Callback ()
```

<br />

<br />

## Public methods

### onFirstFix

Added in [API level 24](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)  

```
public void onFirstFix (int ttffMillis)
```

Called when the GNSS system has received its first fix since starting.

<br />

|                                  Parameters                                   ||
|--------------|-----------------------------------------------------------------|
| `ttffMillis` | `int`: the time from start to first fix in milliseconds. <br /> |

### onSatelliteStatusChanged

Added in [API level 24](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)  

```
public void onSatelliteStatusChanged (GnssStatus status)
```

Called periodically to report GNSS satellite status.

<br />

|                                            Parameters                                             ||
|----------|-----------------------------------------------------------------------------------------|
| `status` | `GnssStatus`: the current status of all satellites. This value cannot be `null`. <br /> |

### onStarted

Added in [API level 24](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)  

```
public void onStarted ()
```

Called when GNSS system has started.

<br />

### onStopped

Added in [API level 24](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)  

```
public void onStopped ()
```

Called when GNSS system has stopped.

<br />