進行状況重視の通知

Android 16 では、ユーザーが開始した、最初から最後までのジャーニーをシームレスに追跡できるように、進行状況重視の通知が導入されています。

Notification.ProgressStyle は、進行状況重視の通知を作成できる新しい通知スタイルです。主なユースケースには、乗車シェアリング、配達、ナビゲーションなどがあります。Notification.ProgressStyle クラス内で、ポイントとセグメントを使用して、ユーザー ジャーニー内の状態とマイルストーンを指定できます。

ロック画面に表示される進行状況重視の通知。

通知シェードに表示される進行状況重視の通知。

Relevant classes and methods

The following classes contain the different APIs that you use to construct a ProgressStyle notification:

• Notification.ProgressStyle
• Notification.ProgressStyle.Point
• Notification.ProgressStyle.Segment

Anatomy and customization

The following images show the different parts that make up ProgressStyle notifications:

Best practices

Adhere to the following best practices to help provide the best possible user experience with progress-centric notifications:

• Use the right visual elements to guide the user in their journey. For example, rideshare apps should set a vehicle image and the most accurate color of the vehicle being used in a rideshare experience using Notification#setLargeIcon
• Use concise and clear language to define the progress of that user journey. Time of arrival, driver name, and state of journey are critical text that should be communicated in the notification.
• Provide useful and relevant actions in the notification that will help streamline the user journey. For example, providing a tip or adding an additional dish to a newly-initiated order for food delivery are actionable items prior to its delivery.
• Use segments and points to denote states. For example, use segments to colorize a state and duration of traffic in a rideshare journey, and use points for states for milestones, food preparation, delivery, and passenger pick-up.
• Update the progress experience frequently and accurately to match the actual progression of the journey. For example, traffic conditions that change can be reflected in changes in segment colors and updates in text.

The following code snippet shows how a ProgressStyle notification could be used for a rideshare context:

var ps =
    Notification.ProgressStyle()
        .setStyledByProgress(false)
        .setProgress(456)
        .setProgressTrackerIcon(Icon.createWithResource(appContext, R.drawable.ic_car_red))
        .setProgressSegments(
            listOf(
                Notification.ProgressStyle.Segment(41).setColor(Color.BLACK),
                Notification.ProgressStyle.Segment(552).setColor(Color.YELLOW),
                Notification.ProgressStyle.Segment(253).setColor(Color.WHITE),
                Notification.ProgressStyle.Segment(94).setColor(Color.BLUE)
            )
        )
        .setProgressPoints(
            listOf(
                Notification.ProgressStyle.Point(60).setColor(Color.RED),
                Notification.ProgressStyle.Point(560).setColor(Color.GREEN)
            )
        )

Note that in the example, a vehicle image is set for the tracker icon, and segments and points are used to denote the rideshare experience and milestones to provide a more complete user experience.