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Summary: Constants | Ctors | Methods | Inherited Methods

# NotificationListenerService.Ranking

`public static class NotificationListenerService.Ranking`
`extends Object` ``

java.lang.Object
↳ | android.service.notification.NotificationListenerService.Ranking

Stores ranking related information on a currently active notification.

Ranking objects aren't automatically updated as notification events occur. Instead, ranking information has to be retrieved again via the current `RankingMap`.

## Summary

### Constants
`int` | `USER_SENTIMENT_NEGATIVE` The user is likely to have a negative reaction to this notification.
`int` | `USER_SENTIMENT_NEUTRAL` It is not known how the user will react to this notification.
`int` | `USER_SENTIMENT_POSITIVE` The user is likely to have a positive reaction to this notification.

### Public constructors
`Ranking()`

### Public methods
`boolean` | `canBubble()` Returns whether the user has allowed bubbles globally, at the app level, and at the channel level for this notification.
`boolean` | `canShowBadge()` Returns whether this notification can be displayed as a badge.
`boolean` | `equals(Object o)` Indicates whether some other object is "equal to" this one.
`NotificationChannel` | `getChannel()` Returns the notification channel this notification was posted to, which dictates notification behavior and presentation.
`int` | `getImportance()` Returns the importance of the notification, which dictates its modes of presentation, see: `NotificationManager#IMPORTANCE_DEFAULT`, etc.
`CharSequence` | `getImportanceExplanation()` If the importance has been overridden by user preference, then this will be non-null, and should be displayed to the user.
`String` | `getKey()` Returns the key of the notification this Ranking applies to.
`long` | `getLastAudiblyAlertedMillis()` Returns the last time this notification alerted the user via sound or vibration.
`String` | `getOverrideGroupKey()` If the system has overridden the group key, then this will be non-null, and this key should be used to bundle notifications.
`int` | `getRank()` Returns the rank of the notification.
`List<Notification.Action>` | `getSmartActions()` Returns a list of smart `Notification.Action` that can be added by the `NotificationAssistantService`
`List<CharSequence>` | `getSmartReplies()` Returns a list of smart replies that can be added by the `NotificationAssistantService`
`int` | `getSuppressedVisualEffects()` Returns the type(s) of visual effects that should be suppressed for this notification.
`int` | `getUserSentiment()` Returns how the system thinks the user feels about notifications from the channel provided by `getChannel()`.
`boolean` | `isAmbient()` Returns whether the notification is an ambient notification, that is a notification that doesn't require the user's immediate attention.
`boolean` | `isSuspended()` Returns whether the app that posted this notification is suspended, so this notification should be hidden.
`boolean` | `matchesInterruptionFilter()` Returns whether the notification matches the user's interruption filter.

### Inherited methods
From class `java.lang.Object`
`Object` | `clone()` Creates and returns a copy of this object.
`boolean` | `equals(Object obj)` Indicates whether some other object is "equal to" this one.
`void` | `finalize()` Called by the garbage collector on an object when garbage collection determines that there are no more references to the object.
`final Class<?>` | `getClass()` Returns the runtime class of this `Object`.
`int` | `hashCode()` Returns a hash code value for the object.
`final void` | `notify()` Wakes up a single thread that is waiting on this object's monitor.
`final void` | `notifyAll()` Wakes up all threads that are waiting on this object's monitor.
`String` | `toString()` Returns a string representation of the object.
`final void` | `wait(long timeout, int nanos)` Causes the current thread to wait until another thread invokes the `notify()` method or the `notifyAll()` method for this object, or some other thread interrupts the current thread, or a certain amount of real time has elapsed.
`final void` | `wait(long timeout)` Causes the current thread to wait until either another thread invokes the `notify()` method or the `notifyAll()` method for this object, or a specified amount of time has elapsed.
`final void` | `wait()` Causes the current thread to wait until another thread invokes the `notify()` method or the `notifyAll()` method for this object.

## Constants

### USER_SENTIMENT_NEGATIVE

    public static final int USER_SENTIMENT_NEGATIVE

The user is likely to have a negative reaction to this notification.

Constant Value: -1 (0xffffffff)

### USER_SENTIMENT_NEUTRAL

    public static final int USER_SENTIMENT_NEUTRAL

It is not known how the user will react to this notification.

Constant Value: 0 (0x00000000)

### USER_SENTIMENT_POSITIVE

    public static final int USER_SENTIMENT_POSITIVE

The user is likely to have a positive reaction to this notification.

Constant Value: 1 (0x00000001)

## Public constructors

### Ranking

    public Ranking ()

## Public methods

### canBubble

    public boolean canBubble ()

Returns whether the user has allowed bubbles globally, at the app level, and at the channel level for this notification.

This does not take into account the current importance of the notification, the current DND state, or whether the posting app is foreground.

Returns
`boolean` |

### canShowBadge

    public boolean canShowBadge ()

Returns whether this notification can be displayed as a badge.

Returns
`boolean` | true if the notification can be displayed as a badge, false otherwise.

### equals

    public boolean equals (Object o)

Indicates whether some other object is "equal to" this one.

The `equals` method implements an equivalence relation on non-null object references:

- It is reflexive: for any non-null reference value `x`, `x.equals(x)` should return `true`.
- It is symmetric: for any non-null reference values `x` and `y`, `x.equals(y)` should return `true` if and only if `y.equals(x)` returns `true`.
- It is transitive: for any non-null reference values `x`, `y`, and `z`, if `x.equals(y)` returns `true` and `y.equals(z)` returns `true`, then `x.equals(z)` should return `true`.
- It is consistent: for any non-null reference values `x` and `y`, multiple invocations of `x.equals(y)` consistently return `true` or consistently return `false`, provided no information used in `equals` comparisons on the objects is modified.
- For any non-null reference value `x`, `x.equals(null)` should return `false`.

The `equals` method for class `Object` implements the most discriminating possible equivalence relation on objects; that is, for any non-null reference values `x` and `y`, this method returns `true` if and only if `x` and `y` refer to the same object (`x == y` has the value `true`).

Note that it is generally necessary to override the `hashCode` method whenever this method is overridden, so as to maintain the general contract for the `hashCode` method, which states that equal objects must have equal hash codes.

Parameters
`o` | `Object`: the reference object with which to compare.

Returns
`boolean` | `true` if this object is the same as the obj argument; `false` otherwise.

### getChannel

    public NotificationChannel getChannel ()

Returns the notification channel this notification was posted to, which dictates notification behavior and presentation.

Returns
`NotificationChannel` |

### getImportance

    public int getImportance ()

Returns the importance of the notification, which dictates its modes of presentation, see: `NotificationManager#IMPORTANCE_DEFAULT`, etc.

Returns
`int` | the importance of the notification Value is `NotificationManager.IMPORTANCE_UNSPECIFIED`, `NotificationManager.IMPORTANCE_NONE`, `NotificationManager.IMPORTANCE_MIN`, `NotificationManager.IMPORTANCE_LOW`, `NotificationManager.IMPORTANCE_DEFAULT`, or `NotificationManager.IMPORTANCE_HIGH`

### getImportanceExplanation

    public CharSequence getImportanceExplanation ()

If the importance has been overridden by user preference, then this will be non-null, and should be displayed to the user.

Returns
`CharSequence` | the explanation for the importance, or null if it is the natural importance

### getKey

    public String getKey ()

Returns the key of the notification this Ranking applies to.

Returns
`String` |

### getLastAudiblyAlertedMillis

    public long getLastAudiblyAlertedMillis ()

Returns the last time this notification alerted the user via sound or vibration.
Value is a non-negative timestamp measured as the number of milliseconds since 1970-01-01T00:00:00Z.

Returns
`long` | the time of the last alerting behavior, in milliseconds. Value is a non-negative timestamp measured as the number of milliseconds since 1970-01-01T00:00:00Z.

### getOverrideGroupKey

    public String getOverrideGroupKey ()

If the system has overridden the group key, then this will be non-null, and this key should be used to bundle notifications.

Returns
`String` |

### getRank

    public int getRank ()

Returns the rank of the notification.

Returns
`int` | the rank of the notification, that is the 0-based index in the list of active notifications.

### getSmartActions

    public List<Notification.Action> getSmartActions ()

Returns a list of smart `Notification.Action` that can be added by the `NotificationAssistantService`

Returns
`List<Notification.Action>` | This value cannot be `null`.

### getSmartReplies

    public List<CharSequence> getSmartReplies ()

Returns a list of smart replies that can be added by the `NotificationAssistantService`

Returns
`List<CharSequence>` | This value cannot be `null`.

### getSuppressedVisualEffects

    public int getSuppressedVisualEffects ()

Returns the type(s) of visual effects that should be suppressed for this notification. See `NotificationManager.Policy`, e.g. `NotificationManager.Policy#SUPPRESSED_EFFECT_LIGHTS`.

Returns
`int` |

### getUserSentiment

    public int getUserSentiment ()

Returns how the system thinks the user feels about notifications from the channel provided by `getChannel()`. You can use this information to expose controls to help the user block this channel's notifications, if the sentiment is `USER_SENTIMENT_NEGATIVE`, or emphasize this notification if the sentiment is `USER_SENTIMENT_POSITIVE`.

Returns
`int` |

### isAmbient

    public boolean isAmbient ()

Returns whether the notification is an ambient notification, that is a notification that doesn't require the user's immediate attention.

Returns
`boolean` |

### isSuspended

    public boolean isSuspended ()

Returns whether the app that posted this notification is suspended, so this notification should be hidden.

Returns
`boolean` | true if the notification should be hidden, false otherwise.

### matchesInterruptionFilter

    public boolean matchesInterruptionFilter ()

Returns whether the notification matches the user's interruption filter.

Returns
`boolean` | `true` if the notification is allowed by the filter, or `false` if it is blocked.

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