CarAppExtender.Builder

public Builder()

Creates an empty Builder instance.

public @NonNull CarAppExtender.Builder addAction(@NonNull Notification.Action action)

Adds an Action to this notification.

Actions are typically displayed by the system as a button adjacent to the notification content.

A notification may offer up to 2 actions. The system may not display some actions in the compact notification UI (e.g. heads-up-notifications).

If actions are added to a CarAppExtender, any actions directly added the notification being extended, for example via addAction, are ignored when the notification is shown in a car. Effectively, these actions override the notification's actions in the car environment. For example:

notificationBuilder.addAction(action1)
carExtenderBuilder.addAction(action2)
notificationBuilder.extend(carExtenderBuilder.build())

The mobile device will only show action1 and the car will only show action2.

public @NonNull CarAppExtender.Builder addAction(
    @DrawableRes int icon,
    @NonNull CharSequence title,
    @NonNull PendingIntent intent
)

Adds an action to this notification.

Actions are typically displayed by the system as a button adjacent to the notification content.

A notification may offer up to 2 actions. The system may not display some actions in the compact notification UI (e.g. heads-up-notifications).

If actions are added to a CarAppExtender, any actions directly added the notification being extended, for example via addAction, are ignored when the notification is shown in a car. Effectively, these actions override the notification's actions in the car environment. For example:

notificationBuilder.addAction(action1)
carExtenderBuilder.addAction(action2)
notificationBuilder.extend(carExtenderBuilder.build())

The mobile device will only show action1 and the car will only show action2.

This method is equivalent to addAction for the car screen.

public @NonNull CarAppExtender build()

Constructs the CarAppExtender defined by this builder.

public @NonNull CarAppExtender.Builder setChannelId(@NonNull String channelId)

For Android Automotive OS only, sets the channel id of the notification channel to be used in the car.

This is used in the case where your notification is to have a different importance in the car then it does on the phone.

It is used for the same purposes you'd use setImportance for Auto.

public @NonNull CarAppExtender.Builder setColor(@NonNull CarColor color)

Sets the background color of the notification in the car screen.

This method is equivalent to setColor for the car screen.

This color is only used for navigation notifications. See the "Navigation" section of CarAppExtender for more details.

public @NonNull CarAppExtender.Builder setContentIntent(@NonNull PendingIntent contentIntent)

Supplies a PendingIntent to send when the notification is clicked in the car.

If not set, the notification's content intent will be used.

In the case of navigation notifications in the rail widget, this intent will be sent when the user taps on the rail widget.

This method is equivalent to setContentIntent for the car screen.

public @NonNull CarAppExtender.Builder setContentText(@NonNull CharSequence contentText)

Sets the content text of the notification in the car screen.

This method is equivalent to setContentText for the car screen.

Spans are not supported in the input string and will be ignored.

public @NonNull CarAppExtender.Builder setContentTitle(@NonNull CharSequence contentTitle)

Sets the title of the notification in the car screen.

This will be the most prominently displayed text in the car notification.

This method is equivalent to setContentTitle for the car screen.

Spans are not supported in the input string and will be ignored.

public @NonNull CarAppExtender.Builder setDeleteIntent(@NonNull PendingIntent deleteIntent)

Supplies a PendingIntent to send when the user clears the notification by either using the "clear all" functionality in the notification center, or tapping the individual "close" buttons on the notification in the car screen.

If not set, the notification's content intent will be used.

This method is equivalent to setDeleteIntent for the car screen.

public @NonNull CarAppExtender.Builder setImportance(int importance)

For Android Auto only, sets the importance of the notification in the car screen.

The default value is IMPORTANCE_UNSPECIFIED, and will not be used to override.

The importance is used to determine whether the notification will show as a HUN on the car screen. See the class description for more details.

See NotificationManagerCompat for all supported importance values.

public @NonNull CarAppExtender.Builder setLargeIcon(@NonNull Bitmap bitmap)

Sets the large icon of the notification in the car screen.

This is used as the secondary icon to represent the notification in the notification center.

This method is equivalent to setLargeIcon for the car screen.

The large icon will be shown in the notification badge. If the large icon is not set in the CarAppExtender or the notification, the small icon will show instead.

public @NonNull CarAppExtender.Builder setSmallIcon(int iconResId)

Sets the small icon of the notification in the car screen.

This is used as the primary icon to represent the notification.

This method is equivalent to setSmallIcon for the car screen.