Add notifications to a media app
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When building a media app that processes audio or video, it's important to use
the correct notifications and notification channels. This
ensures that notifications have the following valuable features:
- Have notification priority
- Are non-dismissable
- Use audio attributes for ringtones
Use NotificationChannel.Builder
to set up two notification channels: one for
incoming calls and the other for active calls.
internal companion object {
const val TELECOM_NOTIFICATION_ID = 200
const val TELECOM_NOTIFICATION_ACTION = "telecom_action"
const val TELECOM_NOTIFICATION_INCOMING_CHANNEL_ID = "telecom_incoming_channel"
const val TELECOM_NOTIFICATION_ONGOING_CHANNEL_ID = "telecom_ongoing_channel"
private val ringToneUri = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_RINGTONE)
}
To display the notification everywhere and allow it to play audio for the
ringtone, set the importance of the incoming notification channel to high.
val incomingChannel = NotificationChannelCompat.Builder(
TELECOM_NOTIFICATION_INCOMING_CHANNEL_ID,
NotificationManagerCompat.IMPORTANCE_HIGH,
).setName("Incoming calls")
.setDescription("Handles the notifications when receiving a call")
.setVibrationEnabled(true).setSound(
ringToneUri,
AudioAttributes.Builder()
.setContentType(AudioAttributes.CONTENT_TYPE_SONIFICATION)
.setLegacyStreamType(AudioManager.STREAM_RING)
.setUsage(AudioAttributes.USAGE_NOTIFICATION_RINGTONE).build(),
).build()
Only active calls requires the importance to be set to default. Use the
following incoming call style to allow notifications for incoming calls to be
non-dismissable.
val ongoingChannel = NotificationChannelCompat.Builder(
TELECOM_NOTIFICATION_ONGOING_CHANNEL_ID,
NotificationManagerCompat.IMPORTANCE_DEFAULT,
)
.setName("Ongoing calls")
.setDescription("Displays the ongoing call notifications")
.build()
To address use cases where the user's device is locked during an incoming call,
use a full-screen notification to display an activity to allow the user to
answer the call.
// on the notification
val contentIntent = PendingIntent.getActivity(
/* context = */ context,
/* requestCode = */ 0,
/* intent = */ Intent(context, TelecomCallActivity::class.java),
/* flags = */ PendingIntent.FLAG_UPDATE_CURRENT or PendingIntent.FLAG_IMMUTABLE,
)
Read Create a call style notification for call apps for instructions on
using CallStyle
to distinguishing call notifications from other types of
notifications.
Content and code samples on this page are subject to the licenses described in the Content License. Java and OpenJDK are trademarks or registered trademarks of Oracle and/or its affiliates.
Last updated 2023-10-26 UTC.
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Missing the information I need","missingTheInformationINeed","thumb-down"],["Too complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2023-10-26 UTC."],[],[],null,["# Add notifications to a media app\n\nWhen building a media app that processes audio or video, it's important to use\nthe correct notifications and notification channels. This\nensures that notifications have the following valuable features:\n\n- Have notification priority\n- Are non-dismissable\n- Use audio attributes for ringtones\n\nUse `NotificationChannel.Builder` to set up two notification channels: one for\nincoming calls and the other for active calls. \n\n internal companion object {\n const val TELECOM_NOTIFICATION_ID = 200\n const val TELECOM_NOTIFICATION_ACTION = \"telecom_action\"\n const val TELECOM_NOTIFICATION_INCOMING_CHANNEL_ID = \"telecom_incoming_channel\"\n const val TELECOM_NOTIFICATION_ONGOING_CHANNEL_ID = \"telecom_ongoing_channel\"\n\n private val ringToneUri = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_RINGTONE)\n }\n\nTo display the notification everywhere and allow it to play audio for the\nringtone, set the importance of the incoming notification channel to high. \n\n val incomingChannel = NotificationChannelCompat.Builder(\n TELECOM_NOTIFICATION_INCOMING_CHANNEL_ID,\n NotificationManagerCompat.IMPORTANCE_HIGH,\n ).setName(\"Incoming calls\")\n .setDescription(\"Handles the notifications when receiving a call\")\n .setVibrationEnabled(true).setSound(\n ringToneUri,\n AudioAttributes.Builder()\n .setContentType(AudioAttributes.CONTENT_TYPE_SONIFICATION)\n .setLegacyStreamType(AudioManager.STREAM_RING)\n .setUsage(AudioAttributes.USAGE_NOTIFICATION_RINGTONE).build(),\n ).build()\n\nOnly active calls requires the importance to be set to default. Use the\nfollowing incoming call style to allow notifications for incoming calls to be\nnon-dismissable. \n\n val ongoingChannel = NotificationChannelCompat.Builder(\n TELECOM_NOTIFICATION_ONGOING_CHANNEL_ID,\n NotificationManagerCompat.IMPORTANCE_DEFAULT,\n )\n .setName(\"Ongoing calls\")\n .setDescription(\"Displays the ongoing call notifications\")\n .build()\n\nTo address use cases where the user's device is locked during an incoming call,\nuse a full-screen notification to display an activity to allow the user to\nanswer the call. \n\n // on the notification\n val contentIntent = PendingIntent.getActivity(\n /* context = */ context,\n /* requestCode = */ 0,\n /* intent = */ Intent(context, TelecomCallActivity::class.java),\n /* flags = */ PendingIntent.FLAG_UPDATE_CURRENT or PendingIntent.FLAG_IMMUTABLE,\n )\n\nRead [Create a call style notification for call apps](/develop/ui/views/notifications/call-style) for instructions on\nusing [`CallStyle`](/reference/android/app/Notification.CallStyle) to distinguishing call notifications from other types of\nnotifications."]]