UsageStatsManager

EXTRA_EVENT_ACTION

public static final String EXTRA_EVENT_ACTION

A String extra, when used with UsageEvents.Event#getExtras, that indicates the action of the user interaction associated with the event. The action cannot be more than 127 characters, longer value will be truncated to 127 characters.

Constant Value: "android.app.usage.extra.EVENT_ACTION"

EXTRA_EVENT_CATEGORY

public static final String EXTRA_EVENT_CATEGORY

A String extra, when used with UsageEvents.Event#getExtras, that indicates the category of the user interaction associated with the event. The category cannot be more than 127 characters, longer value will be truncated to 127 characters.

Constant Value: "android.app.usage.extra.EVENT_CATEGORY"

INTERVAL_BEST

public static final int INTERVAL_BEST

An interval type that will use the best fit interval for the given time range. See queryUsageStats(int, long, long).

Constant Value: 4 (0x00000004)

INTERVAL_DAILY

public static final int INTERVAL_DAILY

An interval type that spans a day. See queryUsageStats(int, long, long).

Constant Value: 0 (0x00000000)

INTERVAL_MONTHLY

public static final int INTERVAL_MONTHLY

An interval type that spans a month. See queryUsageStats(int, long, long).

Constant Value: 2 (0x00000002)

INTERVAL_WEEKLY

public static final int INTERVAL_WEEKLY

An interval type that spans a week. See queryUsageStats(int, long, long).

Constant Value: 1 (0x00000001)

INTERVAL_YEARLY

public static final int INTERVAL_YEARLY

An interval type that spans a year. See queryUsageStats(int, long, long).

Constant Value: 3 (0x00000003)

STANDBY_BUCKET_ACTIVE

public static final int STANDBY_BUCKET_ACTIVE

The app was used very recently, currently in use or likely to be used very soon. Standby bucket values that are ≤ STANDBY_BUCKET_ACTIVE will not be throttled by the system while they are in this bucket. Buckets > STANDBY_BUCKET_ACTIVE will most likely be restricted in some way. For instance, jobs and alarms may be deferred.

Constant Value: 10 (0x0000000a)

STANDBY_BUCKET_FREQUENT

public static final int STANDBY_BUCKET_FREQUENT

The app was used in the last few days and/or likely to be used in the next few days. Restrictions will apply to these apps, such as deferral of jobs and alarms. The delays may be greater than for apps in higher buckets (lower bucket value). Bucket values > STANDBY_BUCKET_FREQUENT may additionally have network access limited.

Constant Value: 30 (0x0000001e)

STANDBY_BUCKET_RARE

public static final int STANDBY_BUCKET_RARE

The app has not be used for several days and/or is unlikely to be used for several days. Apps in this bucket will have more restrictions, including network restrictions, except during certain short periods (at a minimum, once a day) when they are allowed to execute jobs, access the network, etc.

Constant Value: 40 (0x00000028)

STANDBY_BUCKET_RESTRICTED

public static final int STANDBY_BUCKET_RESTRICTED

The app has not be used for several days, is unlikely to be used for several days, and has been misbehaving in some manner. Apps in this bucket will have the most restrictions, including network restrictions and additional restrictions on jobs.

Note: this bucket is not enabled in Build.VERSION_CODES#R.

Constant Value: 45 (0x0000002d)

STANDBY_BUCKET_WORKING_SET

public static final int STANDBY_BUCKET_WORKING_SET

The app was used recently and/or likely to be used in the next few hours. Restrictions will apply to these apps, such as deferral of jobs and alarms.

Constant Value: 20 (0x00000014)

getAppStandbyBucket

public int getAppStandbyBucket ()

Returns the current standby bucket of the calling app. The system determines the standby state of the app based on app usage patterns. Standby buckets determine how much an app will be restricted from running background tasks such as jobs and alarms.

Restrictions increase progressively from STANDBY_BUCKET_ACTIVE to STANDBY_BUCKET_RESTRICTED, with STANDBY_BUCKET_ACTIVE being the least restrictive. The battery level of the device might also affect the restrictions.

Apps in buckets ≤ STANDBY_BUCKET_ACTIVE have no standby restrictions imposed. Apps in buckets > STANDBY_BUCKET_FREQUENT may have network access restricted when running in the background.

The standby state of an app can change at any time either due to a user interaction or a system interaction or some algorithm determining that the app can be restricted for a period of time before the user has a need for it.

You can also query the recent history of standby bucket changes by calling queryEventsForSelf(long, long) and searching for UsageEvents.Event#STANDBY_BUCKET_CHANGED.

isAppInactive

public boolean isAppInactive (String packageName)

Returns whether the specified app is currently considered inactive. This will be true if the app hasn't been used directly or indirectly for a period of time defined by the system. This could be of the order of several hours or days. Apps are not considered inactive when the device is charging.

The caller must have Manifest.permission.PACKAGE_USAGE_STATS to query the inactive state of other apps

queryAndAggregateUsageStats

public Map<String, UsageStats> queryAndAggregateUsageStats (long beginTime, 
                long endTime)

A convenience method that queries for all stats in the given range (using the best interval for that range), merges the resulting data, and keys it by package name. See queryUsageStats(int, long, long).

The caller must have Manifest.permission.PACKAGE_USAGE_STATS

queryConfigurations

public List<ConfigurationStats> queryConfigurations (int intervalType, 
                long beginTime, 
                long endTime)

Gets the hardware configurations the device was in for the given time range, aggregated by the specified interval. The results are ordered as in queryUsageStats(int, long, long).

The caller must have Manifest.permission.PACKAGE_USAGE_STATS

queryEventStats

public List<EventStats> queryEventStats (int intervalType, 
                long beginTime, 
                long endTime)

Gets aggregated event stats for the given time range, aggregated by the specified interval.

The returned list will contain a EventStats object for each event type that is being aggregated and has data for an interval that is a subset of the time range given.

The current event types that will be aggregated here are:

• UsageEvents.Event#SCREEN_INTERACTIVE
• UsageEvents.Event#SCREEN_NON_INTERACTIVE
• UsageEvents.Event#KEYGUARD_SHOWN
• UsageEvents.Event#KEYGUARD_HIDDEN

The caller must have Manifest.permission.PACKAGE_USAGE_STATS

queryEvents

public UsageEvents queryEvents (long beginTime, 
                long endTime)

Query for events in the given time range. Events are only kept by the system for a few days.

The caller must have Manifest.permission.PACKAGE_USAGE_STATS

queryEvents

public UsageEvents queryEvents (UsageEventsQuery query)

Query for events with specific UsageEventsQuery object. Note: if the user's device is not in an unlocked state (as defined by UserManager#isUserUnlocked()), then null will be returned.
Requires Manifest.permission.PACKAGE_USAGE_STATS

queryEventsForSelf

public UsageEvents queryEventsForSelf (long beginTime, 
                long endTime)

Like queryEvents(long, long), but only returns events for the calling package. Note: Starting from Android R, if the user's device is not in an unlocked state (as defined by UserManager#isUserUnlocked()), then null will be returned.

queryUsageStats

public List<UsageStats> queryUsageStats (int intervalType, 
                long beginTime, 
                long endTime)

Gets application usage stats for the given time range, aggregated by the specified interval.

The returned list will contain one or more UsageStats objects for each package, with usage data that covers at least the given time range. Note: The begin and end times of the time range may be expanded to the nearest whole interval period.

The caller must have Manifest.permission.PACKAGE_USAGE_STATS