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A cross platform plugin for displaying local notifications.

Tabular array of contents #

• 📱 Supported platforms
• ✨ Features
• ⚠ Caveats and limitations
  • Compatibility with firebase_messaging
  • Scheduled Android notifications
  • iOS pending notifications limit
  • Scheduled notifications and daylight savings
  • Updating awarding bluecoat
  • Custom notification sounds
  • macOS differences
  • Linux limitations
• 📷 Screenshots
• 👏 Acknowledgements
• ⚙️ Android Setup
  • Custom notification icons and sounds
  • Scheduled notifications
  • Fullscreen intent notifications
  • Release build configuration
• ⚙️ iOS setup
  • General setup
  • Handling notifications whilst the app is in the foreground
• ❓ Usage
  • Example app
  • API reference
• Initialisation
  • [iOS (all supported versions) and macOS ten.14+] Requesting notification permissions
  • Displaying a notification
  • Scheduling a notification
  • Periodically show a notification with a specified interval
  • Retrieving pending notification requests
  • [Android just] Retrieving active notifications
  • Grouping notifications
  • Cancelling/deleting a notification
  • Cancelling/deleting all notifications
  • Getting details on if the app was launched via a notification created by this plugin
  • [iOS only] Periodic notifications showing up after reinstallation
• 📈 Testing

• Android four.1+. Uses the NotificationCompat APIs so information technology can exist run older Android devices
• iOS 8.0+. On iOS versions older than x, the plugin volition employ the UILocalNotification APIs. The UserNotification APIs (aka the User Notifications Framework) is used on iOS 10 or newer.
• macOS 10.11+. On macOS versions older than 10.14, the plugin will use the NSUserNotification APIs. The UserNotification APIs (aka the User Notifications Framework) is used on macOS 10.fourteen or newer.
• Linux. Uses the Desktop Notifications Specification.

• Mockable (plugin and API methods aren't static)
• Display basic notifications
• Scheduling when notifications should appear
• Periodically testify a notification (interval based)
• Schedule a notification to be shown daily at a specified time
• Schedule a notification to be shown weekly on a specified day and time
• Retrieve a listing of pending notification requests that have been scheduled to be shown in the future
• Cancelling/removing notification by id or all of them
• Specify a custom notification audio
• Ability to handle when a user has tapped on a notification, when the app is in the foreground, groundwork or is terminated
• Determine if an app was launched due to tapping on a notification
• [Android] Configuring the importance level
• [Android] Configuring the priority
• [Android] Customising the vibration design for notifications
• [Android] Configure the default icon for all notifications
• [Android] Configure the icon for each notification (overrides the default when specified)
• [Android] Configure the large icon for each notification. The icon can exist a drawable or a file on the device
• [Android] Formatting notification content via HTML markup
• [Android] Support for the following notification styles
  • Large film
  • Large text
  • Inbox
  • Messaging
  • Media
    • While media playback control using a MediaSession.Token is not supported, with this style you let Android treat the largeIcon bitmap equally album artwork
• [Android] Grouping notifications
• [Android] Bear witness progress notifications
• [Android] Configure notification visibility on the lockscreen
• [Android] Ability to create and delete notification channels
• [Android] Remember the listing of active notifications
• [Android] Full-screen intent notifications
• [Android] Start a foreground service
• [Android] Ability to cheque if notifications are enabled
• [iOS (all supported versions) & macOS 10.xiv+] Request notification permissions and customise the permissions being requested around displaying notifications
• [iOS 10 or newer and macOS ten.14 or newer] Display notifications with attachments
• [Linux] Ability to to use themed/Flutter Assets icons and sound
• [Linux] Ability to to set the category
• [Linux] Configuring the urgency
• [Linux] Configuring the timeout (depends on arrangement implementation)
• [Linux] Ability to set up custom notification location (depends on system implementation)
• [Linux] Ability to set custom hints
• [Linux] Ability to suppress sound
• [Linux] Resident and transient notifications

⚠ Caveats and limitations #

The cross-platform facing API exposed by the FlutterLocalNotificationsPlugin course doesn't expose platform-specific methods as its goal is to provide an abstraction for all platforms. Equally such, platform-specific configuration is passed in as information. In that location are platform-specific implementations of the plugin that can be obtained by calling the resolvePlatformSpecificImplementation. An example of using this is provided in the section on requesting permissions on iOS. In spite of this, in that location may still be gaps that don't cover your use case and don't make sense to add as they don't fit with the plugin's architecture or goals. Developers tin fork or maintain their own code for showing notifications in these situations.

Compatibility with firebase_messaging

Previously, there were issues that prevented this plugin working properly with the firebase_messaging plugin. This meant that callbacks from each plugin might not exist invoked. This has been resolved since version half-dozen.0.13 of the firebase_messaging plugin so please make sure you are using more than recent versions of the firebase_messaging plugin and follow the steps covered in firebase_messaging's readme file located hither

Scheduled Android notifications

Some Android OEMs have their own customised Android OS that can foreclose applications from running in the groundwork. Consequently, scheduled notifications may not piece of work when the application is in the background on sure devices (eastward.k. by Xiaomi, Huawei). If yous experience problems like this so this would exist the reason why. As it's a restriction imposed by the Os, this is non something that can exist resolved by the plugin. Some devices may have setting that lets users control which applications run in the groundwork. The steps for these tin vary but it is all the same up to the users of your application to do given it's a setting on the telephone itself.

It has been reported that Samsung's implementation of Android has imposed a maximum of 500 alarms that tin exist scheduled via the Alarm Manager API and exceptions can occur when going over the limit.

iOS pending notifications limit

There is a limit imposed by iOS where information technology will only proceed 64 notifications that will fire the soonest.

Scheduled notifications and daylight savings

The notification APIs used on iOS versions older than 10 (aka the UILocalNotification APIs) have limited supported for time zones.

Updating application badge

This plugin doesn't provide APIs for directly setting the bluecoat count for your application. If you need this for your application, at that place are other plugins available, such as the flutter_app_badger plugin.

Custom notification sounds

iOS and macOS restrictions utilize (due east.thousand. supported file formats).

macOS differences

Due to limitations currently inside the macOS Flutter engine, getNotificationAppLaunchDetails will return null on macOS versions older than x.14. These limitations volition hateful that conflicts may occur when using this plugin with other notification plugins (e.g. for push notifications).

The schedule, showDailyAtTime and showWeeklyAtDayAndTime methods that were implemented before macOS back up was added and accept been marked equally deprecated aren't implemented on macOS.

Linux limitations

Capabilities depend on the arrangement notification server implementation, therefore, not all features listed in LinuxNotificationDetails may exist supported. One of the ways to check some capabilities is to call the LinuxFlutterLocalNotificationsPlugin.getCapabilities() method.

Scheduled/pending notifications is currently non supported due to the lack of a scheduler API.

To respond to notification afterwards the application is terminated, your application should exist registered as DBus activatable (see DBusApplicationLaunching for more information), and annals action earlier activating the application. This is difficult to do in a plugin because plugins instantiate during application activation, then getNotificationAppLaunchDetails can't be implemented without changing the principal user awarding.

Platform	Screenshot
Android
iOS
macOS
Linux

• Javier Lecuona for submitting the PR that added the ability to take notifications shown daily
• Jeff Scaturro for submitting the PR to set up the iOS result around showing daily and weekly notifications and migrating the plugin to AndroidX
• Ian Cavanaugh for helping create a sample to reproduce the trouble reported in upshot #88
• Zhang Jing for adding 'ticker' support for Android notifications
• ...and everyone else for their contributions. They are greatly appreciated

⚙️ Android Setup #

Earlier proceeding, please make sure you lot are using the latest version of the plugin. The reason for this is that since version 3.0.1+iv, the amount of setup needed has been reduced. Previously, applications needed changes done to the AndroidManifest.xml file and there was a scrap more setup needed for release builds. If for some reason, your application nevertheless needs to use an older version of the plugin so brand use of the release tags to refer dorsum to older versions of readme.

Custom notification icons and sounds

Notification icons should exist added as a drawable resources. The example projection/code shows how to prepare default icon for all notifications and how to specify one for each notification. It is possible to use launcher icon/mipmap and this past default is @mipmap/ic_launcher in the Android manifest and can be passed AndroidInitializationSettings constructor. However, the offical Android guidance is that you should use drawable resources. Custom notification sounds should be added as a raw resource and the sample illustrates how to play a notification with a custom sound. Refer to the following links around Android resources and notification icons.

• Notifications
• Providing resources
• Icon design condition bar

When specifying the large icon bitmap or large picture bitmap (associated with the big picture fashion), bitmaps can be either a drawable resources or file on the device. This is specified via a single property (e.g. the largeIcon property associated with the AndroidNotificationDetails class) where a value that is an instance of the DrawableResourceAndroidBitmap means the bitmap should be loaded from an drawable resource. If this is an example of the FilePathAndroidBitmap, this indicates it should be loaded from a file referred to by a given file path.

⚠️ For Android 8.0+, sounds and vibrations are associated with notification channels and can only be configured when they are showtime created. Showing/scheduling a notification volition create a channel with the specified id if information technology doesn't exist already. If another notification specifies the same channel id merely tries to specify another sound or vibration blueprint and then nothing occurs.

Full-screen intent notifications

If your awarding needs the power to schedule full-screen intent notifications, add together the post-obit attributes to the activity you're opening. For a Flutter application, in that location is typically merely i action extends from FlutterActivity. These attributes ensure the screen turns on and shows when the device is locked.

          <activity     android:showWhenLocked="truthful"     android:turnScreenOn="true">                  

For reference, the example app'southward AndroidManifest.xml file tin can be found hither.

Note that when a full-screen intent notification actually occurs (as opposed to a heads-upward notification that the organisation may determine should occur), the plugin volition act as though the user has tapped on a notification so handle those the aforementioned way (e.thou. onSelectNotification callback) to brandish the advisable folio for your awarding.

Release build configuration

Earlier creating the release build of your app (which is the default setting when edifice an APK or app bundle) y'all volition need to customise your ProGuard configuration file every bit per this link. Rules specific to the GSON dependency being used by the plugin will demand to be added. These rules can be found here. The case app has a consolidated Proguard rules (proguard-rules.pro) file that combines these together for reference here.

⚠️ Ensure that you take configured the resources that should be kept then that resource similar your notification icons aren't discarded by the R8 compiler by following the instructions here. If you fail to practice this, notifications might be cleaved. In the worst case they will never show, instead silently declining when the organisation looks for a resource that has been removed. If they do nevertheless show, you might not see the icon yous specified. The configuration used past the example app can be constitute here where it is specifying that all drawable resources should be kept, too as the file used to play a custom notification sound (sound file is located here).

Full general setup

Add the following lines to the didFinishLaunchingWithOptions method in the AppDelegate.one thousand/AppDelegate.swift file of your iOS projection

Objective-C:

          if (@bachelor(iOS x.0, *)) {   [UNUserNotificationCenter currentNotificationCenter].delegate = (id<UNUserNotificationCenterDelegate>) self; }                  

Swift:

          if #available(iOS 10.0, *) {   UNUserNotificationCenter.current().delegate = cocky as? UNUserNotificationCenterDelegate }                  

Handling notifications whilst the app is in the foreground

By design, iOS applications do not display notifications while the app is in the foreground unless configured to do and so.

For iOS ten+, utilize the presentation options to control the behaviour for when a notification is triggered while the app is in the foreground. The default settings of the plugin will configure these such that a notification will exist displayed when the app is in the foreground.

For older versions of iOS, y'all need to handle the callback as part of specifying the method that should be fired to the onDidReceiveLocalNotification argument when creating an example IOSInitializationSettings object that is passed to the function for initializing the plugin.

Here is an example:

          // initialise the plugin. app_icon needs to exist a added every bit a drawable resource to the Android head project const AndroidInitializationSettings initializationSettingsAndroid =     AndroidInitializationSettings('app_icon'); terminal IOSInitializationSettings initializationSettingsIOS =     IOSInitializationSettings(         onDidReceiveLocalNotification: onDidReceiveLocalNotification); final InitializationSettings initializationSettings = InitializationSettings(     android: initializationSettingsAndroid,     iOS: initializationSettingsIOS); flutterLocalNotificationsPlugin.initialize(initializationSettings,     onSelectNotification: onSelectNotification);  ...  void onDidReceiveLocalNotification(     int id, String championship, String trunk, String payload) async {   // brandish a dialog with the notification details, tap ok to go to some other page   showDialog(     context: context,     builder: (BuildContext context) => CupertinoAlertDialog(       title: Text(championship),       content: Text(body),       deportment: [         CupertinoDialogAction(           isDefaultAction: true,           child: Text('Ok'),           onPressed: () async {             Navigator.of(context, rootNavigator: true).popular();             await Navigator.button(               context,               MaterialPageRoute(                 builder: (context) => SecondScreen(payload),               ),             );           },         )       ],     ),   ); }                  

Before going on to re-create-paste the code snippets in this section, double-check you lot take configured your awarding correctly. If you come across any issues please refer to the API docs and the sample code in the case directory before opening a request on Github.

The example directory has a sample application that demonstrates the features of this plugin.

Checkout the lovely API documentation generated by pub.

The beginning step is to create a new example of the plugin class and so initialise it with the settings to utilize for each platform

          FlutterLocalNotificationsPlugin flutterLocalNotificationsPlugin =     FlutterLocalNotificationsPlugin(); // initialise the plugin. app_icon needs to exist a added as a drawable resource to the Android caput project const AndroidInitializationSettings initializationSettingsAndroid =     AndroidInitializationSettings('app_icon'); concluding IOSInitializationSettings initializationSettingsIOS =     IOSInitializationSettings(         onDidReceiveLocalNotification: onDidReceiveLocalNotification); final MacOSInitializationSettings initializationSettingsMacOS =     MacOSInitializationSettings(); terminal InitializationSettings initializationSettings = InitializationSettings(     android: initializationSettingsAndroid,     iOS: initializationSettingsIOS,     macOS: initializationSettingsMacOS); await flutterLocalNotificationsPlugin.initialize(initializationSettings,     onSelectNotification: selectNotification);                  

Initialisation tin can exist done in the main office of your application or tin be washed within the outset folio shown in your app. Developers can refer to the instance app that has lawmaking for the initialising within the chief function. The code above has been simplified for explaining the concepts. Hither nosotros have specified the default icon to use for notifications on Android (refer to the Android setup section) and designated the function (selectNotification) that should burn when a notification has been tapped on via the onSelectNotification callback. Specifying this callback is entirely optional merely here information technology will trigger navigation to another folio and brandish the payload associated with the notification.

          void selectNotification(Cord payload) async {     if (payload != null) {       debugPrint('notification payload: $payload');     }     wait Navigator.push(       context,       MaterialPageRoute<void>(builder: (context) => SecondScreen(payload)),     ); }                  

In the existent earth, this payload could represent the id of the item you desire to brandish the details of. Once the initialisation is complete, then you lot can manage the displaying of notifications.

The IOSInitializationSettings and MacOSInitializationSettings provides default settings on how the notification be presented when it is triggered and the application is in the foreground. In that location are optional named parameters that can be modified to adapt your application'due south purposes. Hither, information technology is omitted and the default values for these named properties is set such that all presentation options (alert, sound, bluecoat) are enabled.

On iOS and macOS, initialisation may show a prompt to requires users to give the application permission to display notifications (annotation: permissions don't need to exist requested on Android). Depending on when this happens, this may not be the ideal user feel for your application. If and so, please refer to the next section on how to work effectually this.

For an explanation of the onDidReceiveLocalNotification callback associated with the IOSInitializationSettings form, please read this.

Note: from version 4.0 of the plugin, calling initialize will non trigger the onSelectNotification callback when the application was started by tapping on a notification to trigger. Use the getNotificationAppLaunchDetails method that is bachelor in the plugin if yous need to handle a notification triggering the launch for an app e.g. modify the abode route of the app for deep-linking.

[iOS (all supported versions) and macOS ten.14+] Requesting notification permissions #

The constructor for the IOSInitializationSettings and MacOSInitializationSettings classes has three named parameters (requestSoundPermission, requestBadgePermission and requestAlertPermission) that controls which permissions are existence requested. If y'all want to asking permissions at a afterward point in your awarding on iOS, set all of the higher up to imitation when initialising the plugin.

                      FlutterLocalNotificationsPlugin flutterLocalNotificationsPlugin =       FlutterLocalNotificationsPlugin();   const AndroidInitializationSettings initializationSettingsAndroid =       AndroidInitializationSettings('app_icon');   last IOSInitializationSettings initializationSettingsIOS =       IOSInitializationSettings(     requestSoundPermission: false,     requestBadgePermission: false,     requestAlertPermission: faux,     onDidReceiveLocalNotification: onDidReceiveLocalNotification,   );   final MacOSInitializationSettings initializationSettingsMacOS =       MacOSInitializationSettings(           requestAlertPermission: simulated,           requestBadgePermission: faux,           requestSoundPermission: imitation);   last InitializationSettings initializationSettings = InitializationSettings(       android: initializationSettingsAndroid,       iOS: initializationSettingsIOS,       macOS: initializationSettingsMacOS);   await flutterLocalNotificationsPlugin.initialize(initializationSettings,       onSelectNotification: onSelectNotification);                  

Then call the requestPermissions method with desired permissions at the advisable betoken in your application

For iOS:

          final bool consequence = await flutterLocalNotificationsPlugin     .resolvePlatformSpecificImplementation<         IOSFlutterLocalNotificationsPlugin>()     ?.requestPermissions(     warning: true,     badge: true,     sound: true,     );                  

For macOS:

          final bool consequence = await flutterLocalNotificationsPlugin     .resolvePlatformSpecificImplementation<         MacOSFlutterLocalNotificationsPlugin>()     ?.requestPermissions(     alarm: true,     badge: true,     sound: truthful,     );                  

Here the call to flutterLocalNotificationsPlugin.resolvePlatformSpecificImplementation<IOSFlutterLocalNotificationsPlugin>() returns the iOS implementation of the plugin that contains APIs specific to iOS if the application is running on iOS. Similarly, the macOS implementation is returned by calling flutterLocalNotificationsPlugin.resolvePlatformSpecificImplementation<MacOSFlutterLocalNotificationsPlugin>(). The ?. operator is used as the consequence will be null when run on other platforms. Developers may alternatively choose to guard this phone call by checking the platform their application is running on.

          const AndroidNotificationDetails androidPlatformChannelSpecifics =     AndroidNotificationDetails('your channel id', 'your channel proper noun',         channelDescription: 'your aqueduct description',         importance: Importance.max,         priority: Priority.loftier,         ticker: 'ticker'); const NotificationDetails platformChannelSpecifics =     NotificationDetails(android: androidPlatformChannelSpecifics); expect flutterLocalNotificationsPlugin.bear witness(     0, 'plain title', 'evidently body', platformChannelSpecifics,     payload: 'item x');                  

Hither, the first argument is the id of notification and is mutual to all methods that would upshot in a notification being shown. This is typically prepare a unique value per notification as using the same id multiple times would result in a notification being updated/overwritten.

The details specific to the Android platform are also specified. This includes the aqueduct details that is required for Android viii.0+. Whilst not shown, it'southward possible to specify details for iOS and macOS as well using the optional iOS and macOS named parameters if needed. The payload has been specified ('detail x'), that will passed dorsum through your application when the user has tapped on a notification. Annotation that for Android devices that notifications volition only in appear in the tray and won't announced equally a toast aka heads-up notification unless things like the priority/importance has been prepare accordingly. Refer to the Android docs (https://developer.android.com/guide/topics/ui/notifiers/notifications.html#Heads-upwards) for additional data. The "ticker" text is passed here is optional and specific to Android. This allows for text to exist shown in the condition bar on older versions of Android when the notification is shown.

Starting in version 2.0 of the plugin, scheduling notifications at present requires developers to specify a date and time relative to a specific time zone. This is to solve issues with daylight savings that existed in the schedule method that is now deprecated. A new zonedSchedule method is provided that expects an instance TZDateTime course provided by the timezone package. Equally the flutter_local_notifications plugin already depends on the timezone package, it's not necessary for developers to add the timezone package as a directly dependency. In other words, the timezone packet volition be a transitive dependency subsequently you add the flutter_local_notifications plugin as a dependency in your application.

Usage of the timezone bundle requires initialisation that is covered in the packet's readme. For convenience the following are code snippets used by the example app.

Import the timezone packet

          import 'package:timezone/data/latest_all.dart' every bit tz; import 'bundle:timezone/timezone.dart' as tz;                  

Initialise the time zone database

          tz.initializeTimeZones();                  

One time the time zone database has been initialised, developers may optionally want to ready a default local location/time zone

          tz.setLocalLocation(tz.getLocation(timeZoneName));                  

The timezone package doesn't provide a mode to obtain the current time zone on the device and then developers will need to use platform channels or utilise other packages that may be able to provide the information. The example app uses the flutter_native_timezone plugin.

Assuming the local location has been set, the zonedScheduled method tin then be called in a manner similar to the following code

          wait flutterLocalNotificationsPlugin.zonedSchedule(     0,     'scheduled title',     'scheduled torso',     tz.TZDateTime.now(tz.local).add(const Duration(seconds: v)),     const NotificationDetails(         android: AndroidNotificationDetails(             'your channel id', 'your channel name',             channelDescription: 'your channel description')),     androidAllowWhileIdle: true,     uiLocalNotificationDateInterpretation:         UILocalNotificationDateInterpretation.absoluteTime);                  

On Android, the androidAllowWhileIdle is used to make up one's mind if the notification should exist delivered at the specified time fifty-fifty when the device in a depression-ability idle mode.

The uiLocalNotificationDateInterpretation is required as on iOS versions older than 10 as time zone support is limited. This ways information technology's not possible schedule a notification for some other time zone and take iOS adjust the time the notification will appear when daylight savings happens. With this parameter, it is used to determine if the scheduled engagement should be interpreted every bit absolute time or wall clock fourth dimension.

There is an optional matchDateTimeComponents parameter that tin can be used to schedule a notification to appear on a daily or weekly basis by telling the plugin to lucifer on the time or a combination of day of the week and time respectively.

If you are trying to update your lawmaking so it doesn't use the deprecated methods for showing daily or weekly notifications that occur on a specific day of the week then yous'll need to perform calculations that would decide the next instance of a appointment that meets the atmospheric condition for your application. Come across the example application that shows one of the means that can exist done e.g. how schedule a weekly notification to occur on Monday ten:00AM.

          const AndroidNotificationDetails androidPlatformChannelSpecifics =     AndroidNotificationDetails(         'repeating aqueduct id', 'repeating aqueduct name',         channelDescription: 'repeating description'); const NotificationDetails platformChannelSpecifics =     NotificationDetails(android: androidPlatformChannelSpecifics); await flutterLocalNotificationsPlugin.periodicallyShow(0, 'repeating championship',     'repeating torso', RepeatInterval.everyMinute, platformChannelSpecifics,     androidAllowWhileIdle: true);                  

          final List<PendingNotificationRequest> pendingNotificationRequests =     wait flutterLocalNotificationsPlugin.pendingNotificationRequests();                  

[Android only] Retrieving active notifications #

          final List<ActiveNotification> activeNotifications =     await flutterLocalNotificationsPlugin         .resolvePlatformSpecificImplementation<             AndroidFlutterLocalNotificationsPlugin>()         ?.getActiveNotifications();                  

iOS

For iOS, yous can specify threadIdentifier in IOSNotificationDetails. Notifications with the same threadIdentifier volition get grouped together automatically.

          const IOSNotificationDetails iOSPlatformChannelSpecifics =     IOSNotificationDetails(threadIdentifier: 'thread_id');                  

Android

This is a "translation" of the sample available at https://developer.android.com/training/notify-user/group.html

          const String groupKey = 'com.android.example.WORK_EMAIL'; const String groupChannelId = 'grouped aqueduct id'; const String groupChannelName = 'grouped channel name'; const String groupChannelDescription = 'grouped channel description'; // example based on https://developer.android.com/training/notify-user/grouping.html const AndroidNotificationDetails firstNotificationAndroidSpecifics =     AndroidNotificationDetails(groupChannelId, groupChannelName,         channelDescription: groupChannelDescription,         importance: Importance.max,         priority: Priority.high,         groupKey: groupKey); const NotificationDetails firstNotificationPlatformSpecifics =     NotificationDetails(android: firstNotificationAndroidSpecifics); expect flutterLocalNotificationsPlugin.prove(one, 'Alex Faarborg',     'You volition non believe...', firstNotificationPlatformSpecifics); const AndroidNotificationDetails secondNotificationAndroidSpecifics =     AndroidNotificationDetails(groupChannelId, groupChannelName,         channelDescription: groupChannelDescription,         importance: Importance.max,         priority: Priority.high,         groupKey: groupKey); const NotificationDetails secondNotificationPlatformSpecifics =     NotificationDetails(android: secondNotificationAndroidSpecifics); await flutterLocalNotificationsPlugin.prove(     2,     'Jeff Chang',     'Please join united states of america to celebrate the...',     secondNotificationPlatformSpecifics);  // Create the summary notification to support older devices that pre-date /// Android vii.0 (API level 24). /// /// Recommended to create this regardless every bit the behaviour may vary as /// mentioned in https://developer.android.com/training/notify-user/grouping const Listing<Cord> lines = <String>[     'Alex Faarborg  Check this out',     'Jeff Chang    Launch Party' ]; const InboxStyleInformation inboxStyleInformation = InboxStyleInformation(     lines,     contentTitle: '2 letters',     summaryText: 'janedoe@example.com'); const AndroidNotificationDetails androidPlatformChannelSpecifics =     AndroidNotificationDetails(groupChannelId, groupChannelName,         channelDescription: groupChannelDescription,         styleInformation: inboxStyleInformation,         groupKey: groupKey,         setAsGroupSummary: truthful); const NotificationDetails platformChannelSpecifics =     NotificationDetails(android: androidPlatformChannelSpecifics); await flutterLocalNotificationsPlugin.show(     three, 'Attention', 'Two letters', platformChannelSpecifics);                  

          // cancel the notification with id value of zero await flutterLocalNotificationsPlugin.abolish(0);                  

          expect flutterLocalNotificationsPlugin.cancelAll();                  

          final NotificationAppLaunchDetails notificationAppLaunchDetails =     await flutterLocalNotificationsPlugin.getNotificationAppLaunchDetails();                  

If you have set notifications to be shown periodically on older iOS versions (< 10) and the awarding was uninstalled without cancelling all alarms, then the next time it's installed you may see the "quondam" notifications existence fired. If this is non the desired behaviour then yous can add together code similar to the following to the didFinishLaunchingWithOptions method of your AppDelegate class.

Objective-C:

          if(![[NSUserDefaults standardUserDefaults]objectForKey:@"Notification"]){     [[UIApplication sharedApplication] cancelAllLocalNotifications];     [[NSUserDefaults standardUserDefaults]setBool:Aye forKey:@"Notification"]; }                  

Swift:

          if(!UserDefaults.standard.bool(forKey: "Notification")) {     UIApplication.shared.cancelAllLocalNotifications()     UserDefaults.standard.set(true, forKey: "Notification") }                  

As the plugin class is not static, it is possible to mock and verify its behaviour when writing tests as office of your application. Check the source code for a sample test suite that has been kindly implemented (test/flutter_local_notifications_test.dart) that demonstrates how this can be done.

If you lot decide to employ the plugin class direct as function of your tests, the methods volition be mostly no-op and methods that return data volition return default values.

Part of this is because the plugin detects if yous're running on a supported plugin to determine which platform implementation of the plugin should exist used. If the platform isn't supported, it will default to the same behaviour to reduce friction when writing tests. If this not desired and so consider using mocks.

If a platform-specific implementation of the plugin is required for your tests, use the debugDefaultTargetPlatformOverride property provided past the Flutter framework.

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Source: https://pub.dev/packages/flutter_local_notifications

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