app_usage

pub package

Install

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

Android

NB: Requires API level 21 as a minimum!

You need to add the following package to the manifest namespace in AndroidManifest.xml:

xmlns:tools="http://schemas.android.com/tools"

as well as the following permissions to the manifest:

    <uses-permission
        android:name="android.permission.PACKAGE_USAGE_STATS"
        tools:ignore="ProtectedPermissions" />

Below is an example of how the start of your manifest should look in the end

<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="YOUR_PACKAGE_NAME_HERE"
    xmlns:tools="http://schemas.android.com/tools">

    <uses-permission
        android:name="android.permission.PACKAGE_USAGE_STATS"
        tools:ignore="ProtectedPermissions"/>

Usage

void function() async {
  // Initialization
  AppUsage appUsage = new AppUsage();
  
  // Define a time interval
  DateTime endDate = new DateTime.now();
  DateTime startDate = DateTime(endDate.year, endDate.month, endDate.day, 0, 0, 0);
  
  // Fetch the usage stats
  Map<String, double> usage = await appUsage.getUsage(startDate, endDate);
}

Example

The first screen will ask for permission to view usage stats. Tap on your application. Screen 1

Tap on the 'Permit usage access' switch. Screen 2

Your application is now running, if the manifest has been corectly set up you should be presented with the following screen after tapping the refresh button. Screen 3

Libraries

app_usage

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. [...]