notifications

pub package

A plugin for tracking notifications on the device. Works exclusively for Android.

Installation

Add notifications as a dependency in pubspec.yaml. For help on adding as a dependency, view the documentation.

Usage

Android: Register service in the manifest

The plugin uses an Android system service to track notifications. To allow this service to run the following code should be put inside the Android manifest, between the <application></application> tags.

<service android:name="cachet.plugins.notifications.NotificationListener"
    android:label="notifications"
    android:permission="android.permission.BIND_NOTIFICATION_LISTENER_SERVICE">
    <intent-filter>
        <action android:name="android.service.notification.NotificationListenerService" />
    </intent-filter>
</service>

Flutter: Listen to notification events

Notifications notifications = new Notifications();
StreamSubscription<NotificationEvent> events;
events = notifications.stream.listen(onData);

Where the onData() method handles the incoming NotificationEvents. An example could be:

void onData(NotificationEvent event) => print(event.toString());

Notification Information

Every time a notification is registered a NotificationEvent is received in Flutter, containing the following attributes:

  • packageName [String]: The name of the application which triggered the notification.
  • timeStamp [DateTime]: The timestamp at which the notification was received.
    • Alternatively, timeStamp can be converted to a unix timestamp using timeStamp.millisecondsSinceEpoch.

Libraries

notifications

Dart

dart:ui
Built-in types and core primitives for a Flutter application. [...]

Core

dart:async
Support for asynchronous programming, with classes such as Future and Stream. [...]
dart:collection
Classes and utilities that supplement the collection support in dart:core. [...]
dart:convert
Encoders and decoders for converting between different data representations, including JSON and UTF-8. [...]
dart:core
Built-in types, collections, and other core functionality for every Dart program. [...]
dart:developer
Interact with developer tools such as the debugger and inspector. [...]
dart:math
Mathematical constants and functions, plus a random number generator. [...]
dart:typed_data
Lists that efficiently handle fixed sized data (for example, unsigned 8 byte integers) and SIMD numeric types. [...]

VM

dart:io
File, socket, HTTP, and other I/O support for non-web applications. [...]
dart:isolate
Concurrent programming using isolates: independent workers that are similar to threads but don't share memory, communicating only via messages. [...]