Added in [API level 31](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels) Summary: [Nested Classes](https://developer.android.com/reference/android/hardware/lights/LightsManager#nestedclasses) \| [Methods](https://developer.android.com/reference/android/hardware/lights/LightsManager#pubmethods) \| [Inherited Methods](https://developer.android.com/reference/android/hardware/lights/LightsManager#inhmethods)

# LightsManager

*** ** * ** ***

` public abstract class LightsManager `   
` extends https://developer.android.com/reference/java/lang/Object ` ` `

|---|---|
| [java.lang.Object](https://developer.android.com/reference/java/lang/Object) ||
| ↳ | android.hardware.lights.LightsManager |

<br />

*** ** * ** ***

The LightsManager class allows control over device lights.

## Summary

| ### Nested classes ||
|---|---|
| ` class` | `https://developer.android.com/reference/android/hardware/lights/LightsManager.LightsSession` Encapsulates a session that can be used to control device lights and represents the lifetime of the requests. |

| ### Public methods ||
|---|---|
| ` abstract https://developer.android.com/reference/android/hardware/lights/LightState` | ` https://developer.android.com/reference/android/hardware/lights/LightsManager#getLightState(android.hardware.lights.Light)(https://developer.android.com/reference/android/hardware/lights/Light light) ` Returns the state of a specified light. |
| ` abstract https://developer.android.com/reference/java/util/List<https://developer.android.com/reference/android/hardware/lights/Light>` | ` https://developer.android.com/reference/android/hardware/lights/LightsManager#getLights()() ` Returns the lights available on the device. |
| ` abstract https://developer.android.com/reference/android/hardware/lights/LightsManager.LightsSession` | ` https://developer.android.com/reference/android/hardware/lights/LightsManager#openSession()() ` Creates a new LightsSession that can be used to control the device lights. |

### Inherited methods

From class ` https://developer.android.com/reference/java/lang/Object ` ` https://developer.android.com/reference/java/lang/Object` ` https://developer.android.com/reference/java/lang/Object#clone()() `

Creates and returns a copy of this object.
` boolean` ` https://developer.android.com/reference/java/lang/Object#equals(java.lang.Object)(https://developer.android.com/reference/java/lang/Object obj) `

Indicates whether some other object is "equal to" this one.
` void` ` 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 https://developer.android.com/reference/java/lang/Class<?>` ` https://developer.android.com/reference/java/lang/Object#getClass()() `

Returns the runtime class of this `Object`.
` int` ` https://developer.android.com/reference/java/lang/Object#hashCode()() `

Returns a hash code value for the object.
` final void` ` https://developer.android.com/reference/java/lang/Object#notify()() `

Wakes up a single thread that is waiting on this object's monitor.
` final void` ` https://developer.android.com/reference/java/lang/Object#notifyAll()() `

Wakes up all threads that are waiting on this object's monitor.
` https://developer.android.com/reference/java/lang/String` ` https://developer.android.com/reference/java/lang/Object#toString()() `

Returns a string representation of the object.
` final void` ` 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` ` 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` ` 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 methods

### getLightState

Added in [API level 31](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)

```
public abstract LightState getLightState (Light light)
```

Returns the state of a specified light.

<br />

| Parameters ||
|---|---|
| `light` | `Light`: This value cannot be `null`. <br /> |

| Returns ||
|---|---|
| `https://developer.android.com/reference/android/hardware/lights/LightState` | This value cannot be `null`. <br /> |

### getLights

Added in [API level 31](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)

```
public abstract List<Light> getLights ()
```

Returns the lights available on the device.

<br />

| Returns ||
|---|---|
| `https://developer.android.com/reference/java/util/List<https://developer.android.com/reference/android/hardware/lights/Light>` | A list of available lights. This value cannot be `null`. <br /> |

### openSession

Added in [API level 31](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)

```
public abstract LightsManager.LightsSession openSession ()
```

Creates a new LightsSession that can be used to control the device lights.

<br />

| Returns ||
|---|---|
| `https://developer.android.com/reference/android/hardware/lights/LightsManager.LightsSession` | This value cannot be `null`. <br /> |