Added in [API level 30](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels) Summary: [Ctors](https://developer.android.com/reference/android/media/RouteDiscoveryPreference.Builder#pubctors) \| [Methods](https://developer.android.com/reference/android/media/RouteDiscoveryPreference.Builder#pubmethods) \| [Inherited Methods](https://developer.android.com/reference/android/media/RouteDiscoveryPreference.Builder#inhmethods)

# RouteDiscoveryPreference.Builder

*** ** * ** ***


`
public
static
final

class
RouteDiscoveryPreference.Builder
`


`

extends https://developer.android.com/reference/java/lang/Object


`

`


`

|---|---|
| [java.lang.Object](https://developer.android.com/reference/java/lang/Object) ||
| ↳ | android.media.RouteDiscoveryPreference.Builder |

<br />

*** ** * ** ***

Builder for `https://developer.android.com/reference/android/media/RouteDiscoveryPreference`.

## Summary

| ### Public constructors ||
|---|---|
| ` https://developer.android.com/reference/android/media/RouteDiscoveryPreference.Builder#Builder(android.media.RouteDiscoveryPreference)(https://developer.android.com/reference/android/media/RouteDiscoveryPreference preference) ` |
| ` https://developer.android.com/reference/android/media/RouteDiscoveryPreference.Builder#Builder(java.util.List<java.lang.String>,%20boolean)(https://developer.android.com/reference/java/util/List<https://developer.android.com/reference/java/lang/String> preferredFeatures, boolean activeScan) ` |

| ### Public methods ||
|---|---|
| ` https://developer.android.com/reference/android/media/RouteDiscoveryPreference` | ` https://developer.android.com/reference/android/media/RouteDiscoveryPreference.Builder#build()() ` Builds the `https://developer.android.com/reference/android/media/RouteDiscoveryPreference`. |
| ` https://developer.android.com/reference/android/media/RouteDiscoveryPreference.Builder` | ` https://developer.android.com/reference/android/media/RouteDiscoveryPreference.Builder#setPreferredFeatures(java.util.List<java.lang.String>)(https://developer.android.com/reference/java/util/List<https://developer.android.com/reference/java/lang/String> preferredFeatures) ` Sets preferred route features to discover. |
| ` https://developer.android.com/reference/android/media/RouteDiscoveryPreference.Builder` | ` https://developer.android.com/reference/android/media/RouteDiscoveryPreference.Builder#setShouldPerformActiveScan(boolean)(boolean activeScan) ` Sets if active scanning should be performed. |

| ### 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 constructors

### Builder

Added in [API level 30](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)

```
public Builder (RouteDiscoveryPreference preference)
```

<br />

<br />

| Parameters ||
|---|---|
| `preference` | `RouteDiscoveryPreference`: This value cannot be `null`. <br /> |

### Builder

Added in [API level 30](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)

```
public Builder (List<String> preferredFeatures, 
                boolean activeScan)
```

<br />

<br />

| Parameters ||
|---|---|
| `preferredFeatures` | `List`: This value cannot be `null`. <br /> |
| `activeScan` | `boolean` <br /> |

## Public methods

### build

Added in [API level 30](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)

```
public RouteDiscoveryPreference build ()
```

Builds the `https://developer.android.com/reference/android/media/RouteDiscoveryPreference`.

<br />

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

### setPreferredFeatures

Added in [API level 30](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)

```
public RouteDiscoveryPreference.Builder setPreferredFeatures (List<String> preferredFeatures)
```

Sets preferred route features to discover.

<br />

| Parameters ||
|---|---|
| `preferredFeatures` | `List`: features of routes that media router would like to discover. May include predefined features such as `https://developer.android.com/reference/android/media/MediaRoute2Info#FEATURE_LIVE_AUDIO`, `https://developer.android.com/reference/android/media/MediaRoute2Info#FEATURE_LIVE_VIDEO`, or `https://developer.android.com/reference/android/media/MediaRoute2Info#FEATURE_REMOTE_PLAYBACK` or custom features defined by a provider. This value cannot be `null`. <br /> |

| Returns ||
|---|---|
| `https://developer.android.com/reference/android/media/RouteDiscoveryPreference.Builder` | This value cannot be `null`. <br /> |

### setShouldPerformActiveScan

Added in [API level 30](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)

```
public RouteDiscoveryPreference.Builder setShouldPerformActiveScan (boolean activeScan)
```

Sets if active scanning should be performed.


Since active scanning uses more system resources, set this as `true` only
when it's necessary.

<br />

<br />

| Parameters ||
|---|---|
| `activeScan` | `boolean` <br /> |

| Returns ||
|---|---|
| `https://developer.android.com/reference/android/media/RouteDiscoveryPreference.Builder` | This value cannot be `null`. <br /> |