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Apps package for the CARP Mobile Sensing framework (Android only).

CARP Apps Sampling Package #

pub package

This library contains a sampling package for app-related sampling to work with the carp_mobile_sensing framework. This packages supports sampling of the following Measure types:

  • apps
  • app_usage

See the wiki for further documentation, particularly on available measure types and sampling schemas.

For Flutter plugins for other CARP products, see CARP Mobile Sensing in Flutter.

If you're interested in writing you own sampling packages for CARP, see the description on how to extend CARP on the wiki.

Installing #

To use this package, add the following to you pubspc.yaml file. Note that this package only works together with carp_mobile_sensing.

dependencies:
  flutter:
    sdk: flutter
  carp_mobile_sensing: # see the newest version
  carp_apps_package: # see the newest version
  ...

Android Integration #

Edit your app's manifest.xml file such that it contains the following:

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

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

iOS Integration #

Not supported.

Using it #

See the example.

  SamplingPackageRegistry.register(AppsSamplingPackage());

  Study study = Study("1234", "bardram", name: "bardram study");

  // creating a task collecting step counts and blood pressure data for the last two days
  study.addTriggerTask(
    ImmediateTrigger(), // a simple trigger that starts immediately
    Task(name: 'Step and blood pressure')
      ..addMeasure(
        Measure(
          MeasureType(NameSpace.CARP, AppsSamplingPackage.APP_USAGE),
          name: 'App usage',
        ),
      )
      ..addMeasure(
          Measure( MeasureType(NameSpace.CARP, AppsSamplingPackage.APPS),
            name: 'Blood Pressure Diastolic'),
      )
  );

  // Create a Study Controller that can manage this study, initialize it, and start it.
  StudyController controller = StudyController(study);

  // await initialization before starting
  await controller.initialize();
  controller.resume();

  // listening on all data events from the study
  controller.events.forEach(print);