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README.md

Android AppUsageStatistics Sample

A basic app showing how to use App usage statistics API to let users collect statistics related to usage of the applications.

Introduction

The App usage statistics API allows app developers to collect statistics related to usage of the applications. This API provides more detailed usage information than the deprecated getRecentTasks() method.

This example illustrates how to use the App usage statistics API by showing the applications sorted by the timestamp of the last time each app was used.

To use this API, you must first declare the android.permission.PACKAGE_USAGE_STATS permission in your manifest. The user must also enable access for this app through Settings > Security > Apps with usage access.

To collect the statistics of the app usage, you need to first get the instance of UsageStatsManager by the following code:

mUsageStatsManager = (UsageStatsManager) getActivity()
       .getSystemService(Context.USAGE_STATS_SERVICE);

Then you can retrieve the statistics of the app usage by the following method:

Calendar cal = Calendar.getInstance();
cal.add(Calendar.YEAR, -1);
List<UsageStats> queryUsageStats = mUsageStatsManager
        .queryUsageStats(UsageStatsManager.INTERVAL_DAILY, cal.getTimeInMillis(),
                System.currentTimeMillis());

The first argument of the queryUsageStats() is used for the time interval by which the stats are aggregated. The second and the third arguments are used for specifying the beginning and the end of the range of the stats to include in the results.

Pre-requisites

  • Android SDK 27
  • Android Build Tools v27.0.2
  • Android Support Repository

Screenshots

Screenshot Screenshot

Getting Started

This sample uses the Gradle build system. To build this project, use the "gradlew build" command or use "Import Project" in Android Studio.

Support

If you've found an error in this sample, please file an issue: https://github.com/googlesamples/android-AppUsageStatistics

Patches are encouraged, and may be submitted by forking this project and submitting a pull request through GitHub. Please see CONTRIBUTING.md for more details.

License

Copyright 2017 The Android Open Source Project, Inc.

Licensed to the Apache Software Foundation (ASF) under one or more contributor license agreements. See the NOTICE file distributed with this work for additional information regarding copyright ownership. The ASF licenses this file to you under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.