@capacitor/push-notifications

The Push Notifications API provides access to native push notifications.

Freegle

The repository is a copy/fork of the push-notifications section of the https://github.com/ionic-team/capacitor-plugins repo, version 6.0.1.

Repo created as follows:

create new temp directory
git init
npm i @capacitor/push-notifications
cd node_modules/@capacitor/
cp -rRp push-notifications ..../capacitor-push-notifications-cap6

@freegle/capacitor-push-notifications-cap6 has changes for Android as follows:

Data-only notifications are handled, generating notifications when in the background and when not running
Tapping on these notifications starts the app

Various aspects are currently hard-wired:

packageName in MessagingService
The title comes from data title field
The notification id comes from data notId field
Notification color to Color.GREEN
The notification large icon is set from applicationInfo.icon

Altered files:

Change package.json
android\src\main\java\com\capacitorjs\plugins\pushnotifications\MessagingService.java
android\src\main\java\com\capacitorjs\plugins\pushnotifications\PushNotificationsPlugin.java
android\src\main\java\com\capacitorjs\plugins\pushnotifications\NotificationChannelManager.java
CapacitorPushNotifications.podspec RENAMED TO FreegleCapacitorPushNotifications.podspec

Some changes are hard-wired for Freegle.

MessagingService.java

If app not alive then send notification ie call sendServiceNotification()

PushNotificationsPlugin.java

sendRemoteMessage() return true if alive and so handled.
fireNotification() adds foreground data and handles data notifications including call to setLargeIcon()

NotificationChannelManager.java

Call createForegroundNotificationChannel() on start

FreegleCapacitorPushNotifications.podspec

iOS: File renamed and podspec name changed to reflect forked plugin name

Install

npm install https://github.com/Freegle/capacitor-push-notifications-cap6.git
npx cap sync

iOS

On iOS you must enable the Push Notifications capability. See Setting Capabilities for instructions on how to enable the capability.

After enabling the Push Notifications capability, add the following to your app's AppDelegate.swift:

func application(_ application: UIApplication, didRegisterForRemoteNotificationsWithDeviceToken deviceToken: Data) {
  NotificationCenter.default.post(name: .capacitorDidRegisterForRemoteNotifications, object: deviceToken)
}

func application(_ application: UIApplication, didFailToRegisterForRemoteNotificationsWithError error: Error) {
  NotificationCenter.default.post(name: .capacitorDidFailToRegisterForRemoteNotifications, object: error)
}

Android

The Push Notification API uses Firebase Cloud Messaging SDK for handling notifications. See Set up a Firebase Cloud Messaging client app on Android and follow the instructions for creating a Firebase project and registering your application. There is no need to add the Firebase SDK to your app or edit your app manifest - the Push Notifications provides that for you. All that is required is your Firebase project's google-services.json file added to the module (app-level) directory of your app.

Android 13 requires a permission check in order to receive push notifications. You are required to call checkPermissions() and requestPermissions() accordingly, when targeting SDK 33.

Variables

This plugin will use the following project variables (defined in your app's variables.gradle file):

firebaseMessagingVersion version of com.google.firebase:firebase-messaging (default: 23.3.1)

Push Notifications icon

On Android, the Push Notifications icon with the appropriate name should be added to the AndroidManifest.xml file:

<meta-data android:name="com.google.firebase.messaging.default_notification_icon" android:resource="@mipmap/push_icon_name" />

If no icon is specified Android will use the application icon, but push icon should be white pixels on a transparent backdrop. As the application icon is not usually like that, it will show a white square or circle. So it's recommended to provide the separate icon for Push Notifications.

Android Studio has an icon generator you can use to create your Push Notifications icon.

Push Notification channel

From Android 8.0 (API level 26) and higher, notification channels are supported and recommended. The SDK will derive the channelId for incoming push notifications in the following order:

Firstly it will check if the incoming notification has a channelId set. When sending a push notification from either the FCM dashboard, or through their API, it's possible to specify a channelId.
Then it will check for a possible given value in the AndroidManifest.xml. If you prefer to create and use your own default channel, set default_notification_channel_id to the ID of your notification channel object as shown; FCM will use this value whenever incoming messages do not explicitly set a notification channel.

<meta-data
    android:name="com.google.firebase.messaging.default_notification_channel_id"
    android:value="@string/default_notification_channel_id" />

Lastly it will use the fallback channelId that the Firebase SDK provides for us. FCM provides a default notification channel with basic settings out of the box. This channel will be created by the Firebase SDK upon receiving the first push message.

Warning When using option 1 or 2, you are still required to create a notification channel in code with an ID that matches the one used the chosen option. You can use createChannel(...) for this. If you don't do this, the SDK will fallback to option 3.

Push notifications appearance in foreground

You can configure the way the push notifications are displayed when the app is in foreground.

Prop	Type	Description	Since
`presentationOptions`	`PresentationOption[]`	This is an array of strings you can combine. Possible values in the array are: - `badge`: badge count on the app icon is updated (default value) - `sound`: the device will ring/vibrate when the push notification is received - `alert`: the push notification is displayed in a native dialog An empty array can be provided if none of the options are desired. badge is only available for iOS.	1.0.0

Examples

In capacitor.config.json:

{
  "plugins": {
    "PushNotifications": {
      "presentationOptions": ["badge", "sound", "alert"]
    }
  }
}

In capacitor.config.ts:

/// <reference types="@capacitor/push-notifications" />

import { CapacitorConfig } from '@capacitor/cli';

const config: CapacitorConfig = {
  plugins: {
    PushNotifications: {
      presentationOptions: ["badge", "sound", "alert"],
    },
  },
};

export default config;

Silent Push Notifications / Data-only Notifications

iOS

This plugin does not support iOS Silent Push (Remote Notifications). We recommend using native code solutions for handling these types of notifications, see Pushing Background Updates to Your App.

Android

This plugin does support data-only notifications, but will NOT call pushNotificationReceived if the app has been killed. To handle this scenario, you will need to create a service that extends FirebaseMessagingService, see Handling FCM Messages.

Common Issues

On Android, there are various system and app states that can affect the delivery of push notifications:

If the device has entered Doze mode, your application may have restricted capabilities. To increase the chance of your notification being received, consider using FCM high priority messages.
There are differences in behavior between development and production. Try testing your app outside of being launched by Android Studio. Read more here.

Example

import { PushNotifications } from '@capacitor/push-notifications';

const addListeners = async () => {
  await PushNotifications.addListener('registration', token => {
    console.info('Registration token: ', token.value);
  });

  await PushNotifications.addListener('registrationError', err => {
    console.error('Registration error: ', err.error);
  });

  await PushNotifications.addListener('pushNotificationReceived', notification => {
    console.log('Push notification received: ', notification);
  });

  await PushNotifications.addListener('pushNotificationActionPerformed', notification => {
    console.log('Push notification action performed', notification.actionId, notification.inputValue);
  });
}

const registerNotifications = async () => {
  let permStatus = await PushNotifications.checkPermissions();

  if (permStatus.receive === 'prompt') {
    permStatus = await PushNotifications.requestPermissions();
  }

  if (permStatus.receive !== 'granted') {
    throw new Error('User denied permissions!');
  }

  await PushNotifications.register();
}

const getDeliveredNotifications = async () => {
  const notificationList = await PushNotifications.getDeliveredNotifications();
  console.log('delivered notifications', notificationList);
}

API

register()
unregister()
getDeliveredNotifications()
removeDeliveredNotifications(...)
removeAllDeliveredNotifications()
createChannel(...)
deleteChannel(...)
listChannels()
checkPermissions()
requestPermissions()
addListener('registration', ...)
addListener('registrationError', ...)
addListener('pushNotificationReceived', ...)
addListener('pushNotificationActionPerformed', ...)
removeAllListeners()
Interfaces
Type Aliases

register()

register() => Promise<void>

Register the app to receive push notifications.

This method will trigger the 'registration' event with the push token or 'registrationError' if there was a problem. It does not prompt the user for notification permissions, use requestPermissions() first.

Since: 1.0.0

unregister()

unregister() => Promise<void>

Unregister the app from push notifications.

This will delete a firebase token on Android, and unregister APNS on iOS.

Since: 5.0.0

getDeliveredNotifications()

getDeliveredNotifications() => Promise<DeliveredNotifications>

Get a list of notifications that are visible on the notifications screen.

Returns: Promise<DeliveredNotifications>

Since: 1.0.0

removeDeliveredNotifications(...)

removeDeliveredNotifications(delivered: DeliveredNotifications) => Promise<void>

Remove the specified notifications from the notifications screen.

Param	Type
`delivered`	`DeliveredNotifications`

Since: 1.0.0

removeAllDeliveredNotifications()

removeAllDeliveredNotifications() => Promise<void>

Remove all the notifications from the notifications screen.

Since: 1.0.0

createChannel(...)

createChannel(channel: Channel) => Promise<void>

Create a notification channel.

Only available on Android O or newer (SDK 26+).

Param	Type
`channel`	`Channel`

Since: 1.0.0

deleteChannel(...)

deleteChannel(args: { id: string; }) => Promise<void>

Delete a notification channel.

Only available on Android O or newer (SDK 26+).

Param	Type
`args`	`{ id: string; }`

Since: 1.0.0

listChannels()

listChannels() => Promise<ListChannelsResult>

List the available notification channels.

Only available on Android O or newer (SDK 26+).

Returns: Promise<ListChannelsResult>

Since: 1.0.0

checkPermissions()

checkPermissions() => Promise<PermissionStatus>

Check permission to receive push notifications.

On Android 12 and below the status is always granted because you can always receive push notifications. If you need to check if the user allows to display notifications, use local-notifications plugin.

Returns: Promise<PermissionStatus>

Since: 1.0.0

requestPermissions()

requestPermissions() => Promise<PermissionStatus>

Request permission to receive push notifications.

On Android 12 and below it doesn't prompt for permission because you can always receive push notifications.

On iOS, the first time you use the function, it will prompt the user for push notification permission and return granted or denied based on the user selection. On following calls it will get the current status of the permission without prompting again.

Returns: Promise<PermissionStatus>

Since: 1.0.0

addListener('registration', ...)

addListener(eventName: 'registration', listenerFunc: (token: Token) => void) => Promise<PluginListenerHandle>

Called when the push notification registration finishes without problems.

Provides the push notification token.

Param	Type
`eventName`	`'registration'`
`listenerFunc`	`(token: Token) => void`

Returns: Promise<PluginListenerHandle>

Since: 1.0.0

addListener('registrationError', ...)

addListener(eventName: 'registrationError', listenerFunc: (error: RegistrationError) => void) => Promise<PluginListenerHandle>

Called when the push notification registration finished with problems.

Provides an error with the registration problem.

Param	Type
`eventName`	`'registrationError'`
`listenerFunc`	`(error: RegistrationError) => void`

Returns: Promise<PluginListenerHandle>

Since: 1.0.0

addListener('pushNotificationReceived', ...)

addListener(eventName: 'pushNotificationReceived', listenerFunc: (notification: PushNotificationSchema) => void) => Promise<PluginListenerHandle>

Called when the device receives a push notification.

Param	Type
`eventName`	`'pushNotificationReceived'`
`listenerFunc`	`(notification: PushNotificationSchema) => void`

Returns: Promise<PluginListenerHandle>

Since: 1.0.0

addListener('pushNotificationActionPerformed', ...)

addListener(eventName: 'pushNotificationActionPerformed', listenerFunc: (notification: ActionPerformed) => void) => Promise<PluginListenerHandle>

Called when an action is performed on a push notification.

Param	Type
`eventName`	`'pushNotificationActionPerformed'`
`listenerFunc`	`(notification: ActionPerformed) => void`

Returns: Promise<PluginListenerHandle>

Since: 1.0.0

removeAllListeners()

removeAllListeners() => Promise<void>

Remove all native listeners for this plugin.

Since: 1.0.0

Interfaces

DeliveredNotifications

Prop	Type	Description	Since
`notifications`	`PushNotificationSchema[]`	List of notifications that are visible on the notifications screen.	1.0.0

PushNotificationSchema

Prop	Type	Description	Since
`title`	`string`	The notification title.	1.0.0
`subtitle`	`string`	The notification subtitle.	1.0.0
`body`	`string`	The main text payload for the notification.	1.0.0
`id`	`string`	The notification identifier.	1.0.0
`tag`	`string`	The notification tag. Only available on Android (from push notifications).	4.0.0
`badge`	`number`	The number to display for the app icon badge.	1.0.0
`notification`	`any`	It's not being returned.	1.0.0
`data`	`any`	Any additional data that was included in the push notification payload.	1.0.0
`click_action`	`string`	The action to be performed on the user opening the notification. Only available on Android.	1.0.0
`link`	`string`	Deep link from the notification. Only available on Android.	1.0.0
`group`	`string`	Set the group identifier for notification grouping. Only available on Android. Works like `threadIdentifier` on iOS.	1.0.0
`groupSummary`	`boolean`	Designate this notification as the summary for an associated `group`. Only available on Android.	1.0.0

Channel

Prop	Type	Description	Default	Since
`id`	`string`	The channel identifier.		1.0.0
`name`	`string`	The human-friendly name of this channel (presented to the user).		1.0.0
`description`	`string`	The description of this channel (presented to the user).		1.0.0
`sound`	`string`	The sound that should be played for notifications posted to this channel. Notification channels with an importance of at least `3` should have a sound. The file name of a sound file should be specified relative to the android app `res/raw` directory.		1.0.0
`importance`	`Importance`	The level of interruption for notifications posted to this channel.	`3`	1.0.0
`visibility`	`Visibility`	The visibility of notifications posted to this channel. This setting is for whether notifications posted to this channel appear on the lockscreen or not, and if so, whether they appear in a redacted form.		1.0.0
`lights`	`boolean`	Whether notifications posted to this channel should display notification lights, on devices that support it.		1.0.0
`lightColor`	`string`	The light color for notifications posted to this channel. Only supported if lights are enabled on this channel and the device supports it. Supported color formats are `#RRGGBB` and `#RRGGBBAA`.		1.0.0
`vibration`	`boolean`	Whether notifications posted to this channel should vibrate.		1.0.0

ListChannelsResult

Prop	Type	Description	Since
`channels`	`Channel[]`	List of all the Channels created by your app.	1.0.0

PermissionStatus

Prop	Type	Description	Since
`receive`	`PermissionState`	Permission state of receiving notifications.	1.0.0

PluginListenerHandle

Prop	Type
`remove`	`() => Promise<void>`

Token

Prop	Type	Description	Since
`value`	`string`	On iOS it contains the APNS token. On Android it contains the FCM token.	1.0.0

RegistrationError

Prop	Type	Description	Since
`error`	`string`	Error message describing the registration failure.	4.0.0

ActionPerformed

Prop	Type	Description	Since
`actionId`	`string`	The action performed on the notification.	1.0.0
`inputValue`	`string`	Text entered on the notification action. Only available on iOS.	1.0.0
`notification`	`PushNotificationSchema`	The notification in which the action was performed.	1.0.0

Type Aliases

Importance

The importance level. For more details, see the Android Developer Docs

1 | 2 | 3 | 4 | 5

Visibility

The notification visibility. For more details, see the Android Developer Docs

-1 | 0 | 1

PermissionState

'prompt' | 'prompt-with-rationale' | 'granted' | 'denied'

Name		Name	Last commit message	Last commit date
Latest commit History 3 Commits
android		android
dist		dist
ios		ios
FreegleCapacitorPushNotificationsCap6.podspec		FreegleCapacitorPushNotificationsCap6.podspec
LICENSE		LICENSE
Package.swift		Package.swift
README.md		README.md
package.json		package.json

License

Freegle/capacitor-push-notifications-cap6

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@capacitor/push-notifications

Freegle

Altered files:

MessagingService.java

PushNotificationsPlugin.java

NotificationChannelManager.java

FreegleCapacitorPushNotifications.podspec

Install

iOS

Android

Variables

Push Notifications icon

Push Notification channel

Push notifications appearance in foreground

Examples

Silent Push Notifications / Data-only Notifications

iOS

Android

Common Issues

Example

API

register()

unregister()

getDeliveredNotifications()

removeDeliveredNotifications(...)

removeAllDeliveredNotifications()

createChannel(...)

deleteChannel(...)

listChannels()

checkPermissions()

requestPermissions()

addListener('registration', ...)

addListener('registrationError', ...)

addListener('pushNotificationReceived', ...)

addListener('pushNotificationActionPerformed', ...)

removeAllListeners()

Interfaces

DeliveredNotifications

PushNotificationSchema

Channel

ListChannelsResult

PermissionStatus

PluginListenerHandle

Token

RegistrationError

ActionPerformed

Type Aliases

Importance

Visibility

PermissionState

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