java.lang.Object
↳androidx.core.app.NotificationCompat.Builder
Overview
Builder class for NotificationCompat objects. Allows easier control over
all the flags, as well as help constructing the typical notification layouts.
On platform versions that don't offer expanded notifications, methods that depend on
expanded notifications have no effect.
For example, action buttons won't appear on platforms prior to Android 4.1. Action
buttons depend on expanded notifications, which are only available in Android 4.1
and later.
For this reason, you should always ensure that UI controls in a notification are also
available in an in your app, and you should always start that
when users click the notification. To do this, use the
setContentIntent()
method.
Summary
Fields |
---|
public java.util.ArrayList<NotificationCompat.Action> | mActions |
public Context | mContext |
public java.util.ArrayList<java.lang.String> | mPeople |
public java.util.ArrayList<Person> | mPersonList |
Constructors |
---|
public | Builder(Context context)
|
public | Builder(Context context, Notification notification)
Creates a NotificationCompat.Builder which can be used to build a notification that is
equivalent to the given one, such that updates can be made to an existing notification
with the NotificationCompat.Builder API. |
public | Builder(Context context, java.lang.String channelId)
Constructor. |
Methods |
---|
public NotificationCompat.Builder | addAction(int icon, java.lang.CharSequence title, PendingIntent intent)
Add an action to this notification. |
public NotificationCompat.Builder | addAction(NotificationCompat.Action action)
Add an action to this notification. |
public NotificationCompat.Builder | addExtras(Bundle extras)
Merge additional metadata into this notification. |
public NotificationCompat.Builder | addInvisibleAction(int icon, java.lang.CharSequence title, PendingIntent intent)
Add an invisible action to this notification. |
public NotificationCompat.Builder | addInvisibleAction(NotificationCompat.Action action)
Add an invisible action to this notification. |
public NotificationCompat.Builder | addPerson(Person person)
Add a person that is relevant to this notification. |
public NotificationCompat.Builder | addPerson(java.lang.String uri)
Add a person that is relevant to this notification. |
public Notification | build()
Combine all of the options that have been set and return a new Notification
object. |
public NotificationCompat.Builder | clearActions()
Clear any actions added via NotificationCompat.Builder.addAction(int, CharSequence, PendingIntent) |
public NotificationCompat.Builder | clearInvisibleActions()
Clear any invisible actions added via NotificationCompat.Builder.addInvisibleAction(int, CharSequence, PendingIntent) |
public NotificationCompat.Builder | clearPeople()
Clear any people added via either NotificationCompat.Builder.addPerson(Person) or
NotificationCompat.Builder.addPerson(String) |
public RemoteViews | createBigContentView()
Construct a RemoteViews for the final big notification layout. |
public RemoteViews | createContentView()
Construct a RemoteViews for the final notification layout. |
public RemoteViews | createHeadsUpContentView()
Construct a RemoteViews for the final heads-up notification layout. |
public NotificationCompat.Builder | extend(NotificationCompat.Extender extender)
Apply an extender to this notification builder. |
public RemoteViews | getBigContentView()
|
public NotificationCompat.BubbleMetadata | getBubbleMetadata()
|
public int | getColor()
|
public RemoteViews | getContentView()
|
public Bundle | getExtras()
Get the current metadata Bundle used by this notification Builder. |
public int | getForegroundServiceBehavior()
|
public RemoteViews | getHeadsUpContentView()
|
public Notification | getNotification()
|
public int | getPriority()
|
public long | getWhenIfShowing()
return when if it is showing or 0 otherwise |
protected static java.lang.CharSequence | limitCharSequenceLength(java.lang.CharSequence cs)
|
public NotificationCompat.Builder | setAllowSystemGeneratedContextualActions(boolean allowed)
Determines whether the platform can generate contextual actions for a notification. |
public NotificationCompat.Builder | setAutoCancel(boolean autoCancel)
Setting this flag will make it so the notification is automatically
canceled when the user clicks it in the panel. |
public NotificationCompat.Builder | setBadgeIconType(int icon)
Sets which icon to display as a badge for this notification. |
public NotificationCompat.Builder | setBubbleMetadata(NotificationCompat.BubbleMetadata data)
Sets the NotificationCompat.BubbleMetadata that will be used to display app content in a floating
window over the existing foreground activity. |
public NotificationCompat.Builder | setCategory(java.lang.String category)
Set the notification category. |
public NotificationCompat.Builder | setChannelId(java.lang.String channelId)
Specifies the channel the notification should be delivered on. |
public NotificationCompat.Builder | setChronometerCountDown(boolean countsDown)
Sets the Chronometer to count down instead of counting up. |
public NotificationCompat.Builder | setColor(int argb)
Sets Notification . |
public NotificationCompat.Builder | setColorized(boolean colorize)
Set whether this notification should be colorized. |
public NotificationCompat.Builder | setContent(RemoteViews views)
Supply a custom RemoteViews to use instead of the standard one. |
public NotificationCompat.Builder | setContentInfo(java.lang.CharSequence info)
A small piece of additional information pertaining to this notification. |
public NotificationCompat.Builder | setContentIntent(PendingIntent intent)
Supply a PendingIntent to send when the notification is clicked. |
public NotificationCompat.Builder | setContentText(java.lang.CharSequence text)
Set the text (second row) of the notification, in a standard notification. |
public NotificationCompat.Builder | setContentTitle(java.lang.CharSequence title)
Set the title (first row) of the notification, in a standard notification. |
public NotificationCompat.Builder | setCustomBigContentView(RemoteViews contentView)
Supply custom RemoteViews to use instead of the platform template in the expanded form. |
public NotificationCompat.Builder | setCustomContentView(RemoteViews contentView)
Supply custom RemoteViews to use instead of the platform template. |
public NotificationCompat.Builder | setCustomHeadsUpContentView(RemoteViews contentView)
Supply custom RemoteViews to use instead of the platform template in the heads up dialog. |
public NotificationCompat.Builder | setDefaults(int defaults)
Set the default notification options that will be used. |
public NotificationCompat.Builder | setDeleteIntent(PendingIntent intent)
Supply a PendingIntent to send when the notification is cleared by the user
directly from the notification panel. |
public NotificationCompat.Builder | setExtras(Bundle extras)
Set metadata for this notification. |
public NotificationCompat.Builder | setForegroundServiceBehavior(int behavior)
Specify a desired visibility policy for a Notification associated with a
foreground service. |
public NotificationCompat.Builder | setFullScreenIntent(PendingIntent intent, boolean highPriority)
An intent to launch instead of posting the notification to the status bar. |
public NotificationCompat.Builder | setGroup(java.lang.String groupKey)
Set this notification to be part of a group of notifications sharing the same key. |
public NotificationCompat.Builder | setGroupAlertBehavior(int groupAlertBehavior)
Sets the group alert behavior for this notification. |
public NotificationCompat.Builder | setGroupSummary(boolean isGroupSummary)
Set this notification to be the group summary for a group of notifications. |
public NotificationCompat.Builder | setLargeIcon(Bitmap icon)
Sets the large icon that is shown in the notification. |
public NotificationCompat.Builder | setLargeIcon(Icon icon)
Sets the large icon that is shown in the notification. |
public NotificationCompat.Builder | setLights(int argb, int onMs, int offMs)
Set the argb value that you would like the LED on the device to blink, as well as the
rate. |
public NotificationCompat.Builder | setLocalOnly(boolean b)
Set whether or not this notification is only relevant to the current device. |
public NotificationCompat.Builder | setLocusId(LocusIdCompat locusId)
Sets the LocusIdCompat associated with this notification. |
public NotificationCompat.Builder | setNotificationSilent()
Silences this instance of the notification, regardless of the sounds or vibrations set
on the notification or notification channel. |
public NotificationCompat.Builder | setNumber(int number)
Sets the number of items this notification represents. |
public NotificationCompat.Builder | setOngoing(boolean ongoing)
Set whether this is an ongoing notification. |
public NotificationCompat.Builder | setOnlyAlertOnce(boolean onlyAlertOnce)
Set this flag if you would only like the sound, vibrate
and ticker to be played if the notification is not already showing. |
public NotificationCompat.Builder | setPriority(int pri)
Set the relative priority for this notification. |
public NotificationCompat.Builder | setProgress(int max, int progress, boolean indeterminate)
Set the progress this notification represents, which may be
represented as a . |
public NotificationCompat.Builder | setPublicVersion(Notification n)
Supply a replacement Notification whose contents should be shown in insecure contexts
(i.e. |
public NotificationCompat.Builder | setRemoteInputHistory(java.lang.CharSequence text[])
Set the remote input history. |
public NotificationCompat.Builder | setSettingsText(java.lang.CharSequence text)
Provides text that will appear as a link to your application's settings. |
public NotificationCompat.Builder | setShortcutId(java.lang.String shortcutId)
From Android 11, messaging notifications (those that use NotificationCompat.MessagingStyle) that
use this method to link to a published long-lived sharing shortcut may appear in a
dedicated Conversation section of the shade and may show configuration options that
are unique to conversations. |
public NotificationCompat.Builder | setShortcutInfo(ShortcutInfoCompat shortcutInfo)
Populates this notification with given ShortcutInfoCompat. |
public NotificationCompat.Builder | setShowWhen(boolean show)
Control whether the timestamp set with setWhen is shown
in the content view. |
public NotificationCompat.Builder | setSilent(boolean silent)
If true, silences this instance of the notification, regardless of the sounds or
vibrations set on the notification or notification channel. |
public NotificationCompat.Builder | setSmallIcon(IconCompat icon)
Set the small icon to use in the notification layouts. |
public NotificationCompat.Builder | setSmallIcon(int icon)
Set the small icon to use in the notification layouts. |
public NotificationCompat.Builder | setSmallIcon(int icon, int level)
A variant of setSmallIcon(int) that takes an additional
level parameter for when the icon is a . |
public NotificationCompat.Builder | setSortKey(java.lang.String sortKey)
Set a sort key that orders this notification among other notifications from the
same package. |
public NotificationCompat.Builder | setSound(Uri sound)
Set the sound to play. |
public NotificationCompat.Builder | setSound(Uri sound, int streamType)
Set the sound to play. |
public NotificationCompat.Builder | setStyle(NotificationCompat.Style style)
Add a rich notification style to be applied at build time. |
public NotificationCompat.Builder | setSubText(java.lang.CharSequence text)
This provides some additional information that is displayed in the notification. |
public NotificationCompat.Builder | setTicker(java.lang.CharSequence tickerText)
Sets the "ticker" text which is sent to accessibility services. |
public NotificationCompat.Builder | setTicker(java.lang.CharSequence tickerText, RemoteViews views)
Sets the "ticker" text which is sent to accessibility services. |
public NotificationCompat.Builder | setTimeoutAfter(long durationMs)
Specifies the time at which this notification should be canceled, if it is not already
canceled. |
public NotificationCompat.Builder | setUsesChronometer(boolean b)
Show the Notification field as a stopwatch. |
public NotificationCompat.Builder | setVibrate(long[] pattern[])
Set the vibration pattern to use. |
public NotificationCompat.Builder | setVisibility(int visibility)
Sets Notification . |
public NotificationCompat.Builder | setWhen(long when)
Set the time that the event occurred. |
from java.lang.Object | clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Fields
public java.util.ArrayList<NotificationCompat.Action>
mActionspublic java.util.ArrayList<Person>
mPersonListpublic java.util.ArrayList<java.lang.String>
mPeopleDeprecated: This field was not meant to be public.
Constructors
public
Builder(Context context, Notification notification)
Creates a NotificationCompat.Builder which can be used to build a notification that is
equivalent to the given one, such that updates can be made to an existing notification
with the NotificationCompat.Builder API.
public
Builder(Context context, java.lang.String channelId)
Constructor.
Automatically sets the when field to System.currentTimeMillis()
and the audio stream to the
Notification
.
Parameters:
context: A that will be used to construct the
RemoteViews. The Context will not be held past the lifetime of this
Builder object.
channelId: The constructed Notification will be posted on this
NotificationChannel.
public
Builder(Context context)
Deprecated: use Builder(Context, String) instead. All posted notifications must
specify a NotificationChannel ID.
Methods
Set the time that the event occurred. Notifications in the panel are
sorted by this time.
Control whether the timestamp set with setWhen is shown
in the content view. The default is true.
Set the small icon to use in the notification layouts. Different classes of devices
may return different sizes. See the UX guidelines for more information on how to
design these icons.
Parameters:
icon: The small Icon object to use
Show the Notification
field as a stopwatch.
Instead of presenting when
as a timestamp, the notification will show an
automatically updating display of the minutes and seconds since when
.
Useful when showing an elapsed time (like an ongoing phone call).
See also: , Notification
Sets the Chronometer to count down instead of counting up.
This is only relevant if setUsesChronometer(boolean) has been set to true. If it
isn't set the chronometer will count up.
See also:
Set the small icon to use in the notification layouts. Different classes of devices
may return different sizes. See the UX guidelines for more information on how to
design these icons.
Parameters:
icon: A resource ID in the application's package of the drawable to use.
A variant of setSmallIcon(int) that takes an additional
level parameter for when the icon is a .
Parameters:
icon: A resource ID in the application's package of the drawable to use.
level: The level to use for the icon.
See also:
Deprecated: use NotificationCompat.Builder.setSilent(boolean)
Silences this instance of the notification, regardless of the sounds or vibrations set
on the notification or notification channel.
If true, silences this instance of the notification, regardless of the sounds or
vibrations set on the notification or notification channel. If false, then the
normal sound and vibration logic applies. Defaults to false.
Set the title (first row) of the notification, in a standard notification.
Set the text (second row) of the notification, in a standard notification.
This provides some additional information that is displayed in the notification. No
guarantees are given where exactly it is displayed.
This information should only be provided if it provides an essential
benefit to the understanding of the notification. The more text you provide the
less readable it becomes. For example, an email client should only provide the account
name here if more than one email account has been added.
As of this information is displayed in the
notification header area.
On Android versions before
this will be shown in the third line of text in the platform notification template.
You should not be using NotificationCompat.Builder.setProgress(int, int, boolean) at the
same time on those versions; they occupy the same place.
Provides text that will appear as a link to your application's settings.
This text does not appear within notification templates but may
appear when the user uses an affordance to learn more about the notification.
Additionally, this text will not appear unless you provide a valid link target by
handling NotificationCompat.INTENT_CATEGORY_NOTIFICATION_PREFERENCES.
This text is meant to be concise description about what the user can customize
when they click on this link. The recommended maximum length is 40 characters.
Prior to this field has no effect.
Set the remote input history.
This should be set to the most recent inputs that have been sent
through a RemoteInput of this Notification and cleared once the it is no
longer relevant (e.g. for chat notifications once the other party has responded).
The most recent input must be stored at the 0 index, the second most recent at the
1 index, etc. Note that the system will limit both how far back the inputs will be shown
and how much of each individual input is shown.
Note: The reply text will only be shown on notifications that have least one action
with a RemoteInput.
Sets the number of items this notification represents.
On the latest platforms, this may be displayed as a badge count for Launchers that
support badging. Prior to it could be
shown in the header. And prior to this was
shown in the notification on the right side.
A small piece of additional information pertaining to this notification.
Where this text is displayed varies between platform versions.
Use NotificationCompat.Builder.setSubText(CharSequence) instead to set a text in the header.
For legacy apps targeting a version below this
field will still show up, but the subtext will take precedence.
Set the progress this notification represents, which may be
represented as a .
Supply a custom RemoteViews to use instead of the standard one.
Supply a PendingIntent
to send when the notification is clicked.
If you do not supply an intent, you can now add PendingIntents to individual
views to be launched when clicked by calling . Be sure to
read Notification.contentIntent
for
how to correctly use this.
Supply a PendingIntent
to send when the notification is cleared by the user
directly from the notification panel. For example, this intent is sent when the user
clicks the "Clear all" button, or the individual "X" buttons on notifications. This
intent is not sent when the application calls
.
An intent to launch instead of posting the notification to the status bar.
Only for use with extremely high-priority notifications demanding the user's
immediate attention, such as an incoming phone call or
alarm clock that the user has explicitly set to a particular time.
If this facility is used for something else, please give the user an option
to turn it off and use a normal notification, as this can be extremely
disruptive.
On some platforms, the system UI may choose to display a heads-up notification,
instead of launching this intent, while the user is using the device.
Parameters:
intent: The pending intent to launch.
highPriority: Passing true will cause this notification to be sent
even if other notifications are suppressed.
Sets the "ticker" text which is sent to accessibility services. Prior to
, sets the text that is displayed in the status bar
when the notification first arrives.
Deprecated: use NotificationCompat.Builder.setTicker(CharSequence)
Sets the "ticker" text which is sent to accessibility services. Prior to
, sets the text that is displayed in the status bar
when the notification first arrives, and also a RemoteViews object that may be displayed
instead on some devices.
Sets the large icon that is shown in the notification. Icons will be scaled on versions
before API 27. Starting in API 27, the framework does this automatically.
Sets the large icon that is shown in the notification. Starting in API 27, the framework
scales icons automatically. Before API 27, for safety, #reduceLargeIconSize
should be called on bitmaps before putting them in an Icon and passing them
into this function.
Set the sound to play. It will play on the default stream.
On some platforms, a notification that is noisy is more likely to be presented
as a heads-up notification.
On platforms and above this value is ignored in favor
of the value set on the notification's channel. On older
platforms, this value is still used, so it is still required for apps supporting
those platforms.
See also: NotificationChannelCompat.Builder.setSound(Uri, AudioAttributes)
Set the sound to play. It will play on the stream you supply.
On some platforms, a notification that is noisy is more likely to be presented
as a heads-up notification.
On platforms and above this value is ignored in favor
of the value set on the notification's channel. On older
platforms, this value is still used, so it is still required for apps supporting
those platforms.
See also: NotificationChannelCompat.Builder.setSound(Uri, AudioAttributes), Notification
, for the STREAM_
constants.
Set the vibration pattern to use.
On some platforms, a notification that vibrates is more likely to be presented
as a heads-up notification.
On platforms and above this value is ignored in favor
of the value set on the notification's channel. On older
platforms, this value is still used, so it is still required for apps supporting
those platforms.
See also: NotificationChannelCompat.Builder.setVibrationEnabled(boolean), NotificationChannelCompat.Builder.setVibrationPattern(long[])
Set the argb value that you would like the LED on the device to blink, as well as the
rate. The rate is specified in terms of the number of milliseconds to be on
and then the number of milliseconds to be off.
On platforms and above this value is ignored in favor
of the value set on the notification's channel. On older
platforms, this value is still used, so it is still required for apps supporting
those platforms.
See also: NotificationChannelCompat.Builder.setLightsEnabled(boolean), NotificationChannelCompat.Builder.setLightColor(int)
Set whether this is an ongoing notification.
Ongoing notifications cannot be dismissed by the user, so your application or service
must take care of canceling them.
They are typically used to indicate a background task that the user is actively engaged
with (e.g., playing music) or is pending in some way and therefore occupying the device
(e.g., a file download, sync operation, active network connection).
See also: Notification
Set whether this notification should be colorized. When set, the color set with
NotificationCompat.Builder.setColor(int) will be used as the background color of this notification.
This should only be used for high priority ongoing tasks like navigation, an ongoing
call, or other similarly high-priority events for the user.
For most styles, the coloring will only be applied if the notification is for a
foreground service notification.
However, for MediaStyle and DecoratedMediaCustomViewStyle notifications
that have a media session attached there is no such requirement.
Calling this method on any version prior to will
not have an effect on the notification and it won't be colorized.
See also: NotificationCompat.Builder.setColor(int)
Set this flag if you would only like the sound, vibrate
and ticker to be played if the notification is not already showing.
Setting this flag will make it so the notification is automatically
canceled when the user clicks it in the panel.
Set whether or not this notification is only relevant to the current device.
Some notifications can be bridged to other devices for remote display.
This hint can be set to recommend this notification not be bridged.
Set the notification category.
Must be one of the predefined notification categories (see the CATEGORY_*
constants in Notification
) that best describes this notification.
May be used by the system for ranking and filtering.
Set the default notification options that will be used.
The value should be one or more of the following fields combined with
bitwise-or:
Notification
, Notification
,
Notification
.
For all default values, use Notification
.
On platforms and above this value is ignored in favor
of the values set on the notification's channel. On older
platforms, this value is still used, so it is still required for apps supporting
those platforms.
See also: NotificationChannelCompat.Builder.setVibrationEnabled(boolean), NotificationChannelCompat.Builder.setLightsEnabled(boolean)
Set the relative priority for this notification.
Priority is an indication of how much of the user's valuable attention should be
consumed by this notification. Low-priority notifications may be hidden from
the user in certain situations, while the user might be interrupted for a
higher-priority notification. The system sets a notification's priority based on
various factors including the setPriority value. The effect may differ slightly on
different platforms.
On platforms and above this value is ignored in favor
of the importance value set on the notification's channel.
On older platforms, this value is still used, so it is still required for apps
supporting those platforms.
Parameters:
pri: Relative priority for this notification. Must be one of
the priority constants defined by NotificationCompat.
Acceptable values range from NotificationCompat.PRIORITY_MIN (-2) to
NotificationCompat.PRIORITY_MAX (2).
See also: NotificationChannelCompat.Builder.setImportance(int)
Deprecated: use NotificationCompat.Builder.addPerson(Person)
Add a person that is relevant to this notification.
Depending on user preferences, this annotation may allow the notification to pass
through interruption filters, and to appear more prominently in the user interface.
The person should be specified by the String representation of a
.
The system will also attempt to resolve mailto: and tel: schema
URIs. The path part of these URIs must exist in the contacts database, in the
appropriate column, or the reference will be discarded as invalid. Telephone schema
URIs will be resolved by .
Parameters:
uri: A URI for the person.
See also: Notification
Add a person that is relevant to this notification.
Depending on user preferences, this annotation may allow the notification to pass
through interruption filters, if this notification is of category NotificationCompat.CATEGORY_CALL
or NotificationCompat.CATEGORY_MESSAGE. The addition of people may also cause this notification to
appear more prominently in the user interface.
A person should usually contain a uri in order to benefit from the ranking boost.
However, even if no uri is provided, it's beneficial to provide other people in the
notification, such that listeners and voice only devices can announce and handle them
properly.
Parameters:
person: the person to add.
See also: NotificationCompat.EXTRA_PEOPLE_LIST
Clear any people added via either NotificationCompat.Builder.addPerson(Person) or
NotificationCompat.Builder.addPerson(String)
Set this notification to be part of a group of notifications sharing the same key.
Grouped notifications may display in a cluster or stack on devices which
support such rendering.
To make this notification the summary for its group, also call
NotificationCompat.Builder.setGroupSummary(boolean). A sort order can be specified for group members by using
NotificationCompat.Builder.setSortKey(String).
Parameters:
groupKey: The group key of the group.
Returns:
this object for method chaining
Set this notification to be the group summary for a group of notifications.
Grouped notifications may display in a cluster or stack on devices which
support such rendering. Requires a group key also be set using NotificationCompat.Builder.setGroup(String).
Parameters:
isGroupSummary: Whether this notification should be a group summary.
Returns:
this object for method chaining
Set a sort key that orders this notification among other notifications from the
same package. This can be useful if an external sort was already applied and an app
would like to preserve this. Notifications will be sorted lexicographically using this
value, although providing different priorities in addition to providing sort key may
cause this value to be ignored.
This sort key can also be used to order members of a notification group. See
NotificationCompat.Builder.setGroup(String).
See also: compareTo
Merge additional metadata into this notification.
Values within the Bundle will replace existing extras values in this Builder.
See also: Notification
Set metadata for this notification.
A reference to the Bundle is held for the lifetime of this Builder, and the Bundle's
current contents are copied into the Notification each time NotificationCompat.Builder.build() is
called.
Replaces any existing extras values with those from the provided Bundle.
Use NotificationCompat.Builder.addExtras(Bundle) to merge in metadata instead.
See also: Notification
public Bundle
getExtras()
Get the current metadata Bundle used by this notification Builder.
The returned Bundle is shared with this Builder.
The current contents of this Bundle are copied into the Notification each time
NotificationCompat.Builder.build() is called.
See also: Notification
Add an action to this notification. Actions are typically displayed by
the system as a button adjacent to the notification content.
Action buttons won't appear on platforms prior to Android 4.1. Action
buttons depend on expanded notifications, which are only available in Android 4.1
and later. To ensure that an action button's functionality is always available, first
implement the functionality in the that starts when a user
clicks the notification (see setContentIntent()), and then
enhance the notification by implementing the same functionality with
addAction().
Parameters:
icon: Resource ID of a drawable that represents the action.
title: Text describing the action.
intent: android.app.PendingIntent
to be fired when the action is invoked.
Add an action to this notification. Actions are typically displayed by
the system as a button adjacent to the notification content.
Action buttons won't appear on platforms prior to Android 4.1. Action
buttons depend on expanded notifications, which are only available in Android 4.1
and later. To ensure that an action button's functionality is always available, first
implement the functionality in the that starts when a user
clicks the notification (see setContentIntent()), and then
enhance the notification by implementing the same functionality with
addAction().
Parameters:
action: The action to add.
Clear any actions added via NotificationCompat.Builder.addAction(int, CharSequence, PendingIntent)
Add an invisible action to this notification. Invisible actions are never displayed by
the system, but can be retrieved and used by other application listening to
system notifications. Invisible actions are supported from Android 4.4.4 (API 20) and can
be retrieved using NotificationCompat.getInvisibleActions(Notification).
Parameters:
icon: Resource ID of a drawable that represents the action.
title: Text describing the action.
intent: android.app.PendingIntent
to be fired when the action is invoked.
Add an invisible action to this notification. Invisible actions are never displayed by
the system, but can be retrieved and used by other application listening to
system notifications. Invisible actions are supported from Android 4.4.4 (API 20) and can
be retrieved using NotificationCompat.getInvisibleActions(Notification).
Parameters:
action: The action to add.
Clear any invisible actions added via NotificationCompat.Builder.addInvisibleAction(int, CharSequence, PendingIntent)
Add a rich notification style to be applied at build time.
If the platform does not provide rich notification styles, this method has no effect. The
user will always see the normal notification style.
Parameters:
style: Object responsible for modifying the notification style.
Sets Notification
.
Parameters:
argb: The accent color to use
Returns:
The same Builder.
Sets Notification
.
Parameters:
visibility: One of Notification
(the default),
Notification
, or
Notification
.
Supply a replacement Notification whose contents should be shown in insecure contexts
(i.e. atop the secure lockscreen). See Notification
and
NotificationCompat.VISIBILITY_PUBLIC.
Parameters:
n: A replacement notification, presumably with some or all info redacted.
Returns:
The same Builder.
public RemoteViews
createContentView()
Construct a RemoteViews for the final notification layout.
public RemoteViews
createBigContentView()
Construct a RemoteViews for the final big notification layout.
public RemoteViews
createHeadsUpContentView()
Construct a RemoteViews for the final heads-up notification layout.
Supply custom RemoteViews to use instead of the platform template.
This will override the layout that would otherwise be constructed by this Builder
object.
Supply custom RemoteViews to use instead of the platform template in the expanded form.
This will override the expanded layout that would otherwise be constructed by this
Builder object.
No-op on versions prior to .
Supply custom RemoteViews to use instead of the platform template in the heads up dialog.
This will override the heads-up layout that would otherwise be constructed by this
Builder object.
No-op on versions prior to .
Specifies the channel the notification should be delivered on.
No-op on versions prior to .
Specifies the time at which this notification should be canceled, if it is not already
canceled.
No-op on versions prior to .
From Android 11, messaging notifications (those that use NotificationCompat.MessagingStyle) that
use this method to link to a published long-lived sharing shortcut may appear in a
dedicated Conversation section of the shade and may show configuration options that
are unique to conversations. This behavior should be reserved for person to person(s)
conversations where there is a likely social obligation for an individual to respond.
For example, the following are some examples of notifications that belong in the
conversation space:
- 1:1 conversations between two individuals
- Group conversations between individuals where everyone can contribute
And the following are some examples of notifications that do not belong in the
conversation space:
- Advertisements from a bot (even if personal and contextualized)
- Engagement notifications from a bot
- Directional conversations where there is an active speaker and many passive
individuals
- Stream / posting updates from other individuals
- Email, document comments, or other conversation types that are not real-time
Additionally, this method can be used for all types of notifications to mark this
notification as duplicative of a Launcher shortcut. Launchers that show badges or
notification content may then suppress the shortcut in favor of the content of this
notification.
If this notification has NotificationCompat.BubbleMetadata attached that was created with
a shortcutId a check will be performed to ensure the shortcutId supplied to bubble
metadata matches the shortcutId set here, if one was set. If the shortcutId's were
specified but do not match, an exception is thrown.
Parameters:
shortcutId: the id of the shortcut this
notification is linked to
See also: NotificationCompat.BubbleMetadata.Builder.Builder()
Populates this notification with given ShortcutInfoCompat.
Sets shortcutId based on
the given shortcut. In addition, it also sets locusId and
contentTitle if they were empty.
Sets the LocusIdCompat associated with this notification.
This method should be called when the LocusIdCompat is used in other places
(such as ShortcutInfoCompat and
) so the device's intelligence
services can correlate them.
Sets which icon to display as a badge for this notification.
Must be one of NotificationCompat.BADGE_ICON_NONE, NotificationCompat.BADGE_ICON_SMALL,
NotificationCompat.BADGE_ICON_LARGE.
Note: This value might be ignored, for launchers that don't support
badge icons.
Sets the group alert behavior for this notification. Use this method to mute this
notification if alerts for this notification's group should be handled by a different
notification. This is only applicable for notifications that belong to a
group. This must be called on all notifications you want to
mute. For example, if you want only the summary of your group to make noise, all
children in the group should have the group alert behavior NotificationCompat.GROUP_ALERT_SUMMARY.
The default value is NotificationCompat.GROUP_ALERT_ALL.
Specify a desired visibility policy for a Notification associated with a
foreground service. The default value is NotificationCompat.FOREGROUND_SERVICE_DEFAULT,
meaning the system can choose to defer visibility of the notification for
a short time after the service is started. Pass
FOREGROUND_SERVICE_IMMEDIATE
to this method in order to guarantee that visibility is never deferred. Pass
FOREGROUND_SERVICE_DEFERRED
to request that visibility is deferred whenever possible.
Note that deferred visibility is not guaranteed. There
may be some circumstances under which the system will show the foreground
service's associated Notification immediately even when the app has used
this method to explicitly request deferred display.
This method has no effect when running on versions prior to
.
Sets the NotificationCompat.BubbleMetadata that will be used to display app content in a floating
window over the existing foreground activity.
This data will be ignored unless the notification is posted to a channel that
allows .
Notifications allowed to bubble that have valid bubble metadata will display in
collapsed state outside of the notification shade on unlocked devices. When a user
interacts with the collapsed state, the bubble intent will be invoked and displayed.
Apply an extender to this notification builder. Extenders may be used to add
metadata or change options on this builder.
Determines whether the platform can generate contextual actions for a notification.
By default this is true.
public Notification
getNotification()
Deprecated: Use NotificationCompat.Builder.build() instead.
public Notification
build()
Combine all of the options that have been set and return a new Notification
object.
protected static java.lang.CharSequence
limitCharSequenceLength(java.lang.CharSequence cs)
public RemoteViews
getContentView()
public RemoteViews
getBigContentView()
public RemoteViews
getHeadsUpContentView()
public long
getWhenIfShowing()
return when if it is showing or 0 otherwise
Returns:
the priority set on the notification
public int
getForegroundServiceBehavior()
Returns:
the foreground service behavior defined for the notification
Returns:
the color of the notification
Returns:
the NotificationCompat.BubbleMetadata of the notification