Added in [version 37.2](https://developer.android.com/topic/libraries/support-library/revisions) Summary: [Inherited Constants](https://developer.android.com/reference/android/app/usage/AppUsageDuration#inhconstants) \| [Fields](https://developer.android.com/reference/android/app/usage/AppUsageDuration#lfields) \| [Ctors](https://developer.android.com/reference/android/app/usage/AppUsageDuration#pubctors) \| [Methods](https://developer.android.com/reference/android/app/usage/AppUsageDuration#pubmethods) \| [Inherited Methods](https://developer.android.com/reference/android/app/usage/AppUsageDuration#inhmethods)

# AppUsageDuration

*** ** * ** ***


`
public

final

class
AppUsageDuration
`


`

extends https://developer.android.com/reference/java/lang/Object


`

`


implements

https://developer.android.com/reference/android/os/Parcelable


`

|---|---|
| [java.lang.Object](https://developer.android.com/reference/java/lang/Object) ||
| ↳ | android.app.usage.AppUsageDuration |

<br />

*** ** * ** ***

Contains usage statistics for a single app package.

This class encapsulates the total duration a specific application was used within a specified
time range.

## Summary

### Inherited constants

From interface `https://developer.android.com/reference/android/os/Parcelable` `int` `https://developer.android.com/reference/android/os/Parcelable#CONTENTS_FILE_DESCRIPTOR`

Descriptor bit used with `https://developer.android.com/reference/android/os/Parcelable#describeContents()`: indicates that
the Parcelable object's flattened representation includes a file descriptor.


`int` `https://developer.android.com/reference/android/os/Parcelable#PARCELABLE_WRITE_RETURN_VALUE`

Flag for use with `https://developer.android.com/reference/android/os/Parcelable#writeToParcel(android.os.Parcel,%20int)`: the object being written
is a return value, that is the result of a function such as
"`Parcelable someFunction()`",
"`void someFunction(out Parcelable)`", or
"`void someFunction(inout Parcelable)`".


| ### Fields ||
|---|---|
| ` public static final https://developer.android.com/reference/android/os/Parcelable.Creator<https://developer.android.com/reference/android/app/usage/AppUsageDuration>` | `https://developer.android.com/reference/android/app/usage/AppUsageDuration#CREATOR` |

| ### Public constructors ||
|---|---|
| ` https://developer.android.com/reference/android/app/usage/AppUsageDuration#AppUsageDuration(java.lang.String,%20long,%20long,%20long)(https://developer.android.com/reference/java/lang/String packageName, long totalUsageDurationMillis, long startTimeMillis, long endTimeMillis) ` Constructor for `https://developer.android.com/reference/android/app/usage/AppUsageDuration`. |

| ### Public methods ||
|---|---|
| ` int` | ` https://developer.android.com/reference/android/app/usage/AppUsageDuration#describeContents()() ` Describe the kinds of special objects contained in this Parcelable instance's marshaled representation. |
| ` boolean` | ` https://developer.android.com/reference/android/app/usage/AppUsageDuration#equals(java.lang.Object)(https://developer.android.com/reference/java/lang/Object o) ` Indicates whether some other object is "equal to" this one. |
| ` long` | ` https://developer.android.com/reference/android/app/usage/AppUsageDuration#getEndTimeMillis()() ` Returns the end of the time range for which the usage duration is valid, in milliseconds since epoch. |
| ` https://developer.android.com/reference/java/lang/String` | ` https://developer.android.com/reference/android/app/usage/AppUsageDuration#getPackageName()() ` Returns the package name of the app. |
| ` long` | ` https://developer.android.com/reference/android/app/usage/AppUsageDuration#getStartTimeMillis()() ` Returns the start of the time range for which the usage duration is valid, in milliseconds since epoch. |
| ` long` | ` https://developer.android.com/reference/android/app/usage/AppUsageDuration#getTotalUsageDurationMillis()() ` Returns the total duration the app was used during the range, measured in milliseconds. |
| ` int` | ` https://developer.android.com/reference/android/app/usage/AppUsageDuration#hashCode()() ` Returns a hash code value for the object. |
| ` https://developer.android.com/reference/java/lang/String` | ` https://developer.android.com/reference/android/app/usage/AppUsageDuration#toString()() ` Returns a string representation of the object. |
| ` void` | ` https://developer.android.com/reference/android/app/usage/AppUsageDuration#writeToParcel(android.os.Parcel,%20int)(https://developer.android.com/reference/android/os/Parcel dest, int flags) ` Flatten this object in to a Parcel. |

### Inherited methods

From class `

https://developer.android.com/reference/java/lang/Object

` `


https://developer.android.com/reference/java/lang/Object` `
https://developer.android.com/reference/java/lang/Object#clone()()
`

Creates and returns a copy of this object.


`


boolean` `
https://developer.android.com/reference/java/lang/Object#equals(java.lang.Object)(https://developer.android.com/reference/java/lang/Object obj)
`

Indicates whether some other object is "equal to" this one.


`


void` `
https://developer.android.com/reference/java/lang/Object#finalize()()
`

Called by the garbage collector on an object when garbage collection
determines that there are no more references to the object.


`


final

https://developer.android.com/reference/java/lang/Class<?>` `
https://developer.android.com/reference/java/lang/Object#getClass()()
`

Returns the runtime class of this `Object`.


`


int` `
https://developer.android.com/reference/java/lang/Object#hashCode()()
`

Returns a hash code value for the object.


`


final

void` `
https://developer.android.com/reference/java/lang/Object#notify()()
`

Wakes up a single thread that is waiting on this object's
monitor.


`


final

void` `
https://developer.android.com/reference/java/lang/Object#notifyAll()()
`

Wakes up all threads that are waiting on this object's monitor.


`


https://developer.android.com/reference/java/lang/String` `
https://developer.android.com/reference/java/lang/Object#toString()()
`

Returns a string representation of the object.


`


final

void` `
https://developer.android.com/reference/java/lang/Object#wait(long,%20int)(long timeoutMillis, int nanos)
`

Causes the current thread to wait until it is awakened, typically
by being *notified* or *interrupted*, or until a
certain amount of real time has elapsed.


`


final

void` `
https://developer.android.com/reference/java/lang/Object#wait(long)(long timeoutMillis)
`

Causes the current thread to wait until it is awakened, typically
by being *notified* or *interrupted*, or until a
certain amount of real time has elapsed.


`


final

void` `
https://developer.android.com/reference/java/lang/Object#wait()()
`

Causes the current thread to wait until it is awakened, typically
by being *notified* or *interrupted*.


From interface `

https://developer.android.com/reference/android/os/Parcelable

` `
abstract


int` `
https://developer.android.com/reference/android/os/Parcelable#describeContents()()
`

Describe the kinds of special objects contained in this Parcelable
instance's marshaled representation.


`
abstract


void` `
https://developer.android.com/reference/android/os/Parcelable#writeToParcel(android.os.Parcel,%20int)(https://developer.android.com/reference/android/os/Parcel dest, int flags)
`

Flatten this object in to a Parcel.


## Fields

### CREATOR

Added in [version 37.2](https://developer.android.com/topic/libraries/support-library/revisions)

```
public static final Creator<AppUsageDuration> CREATOR
```

<br />

<br />

## Public constructors

### AppUsageDuration

Added in [version 37.2](https://developer.android.com/topic/libraries/support-library/revisions)

```
public AppUsageDuration (String packageName, 
                long totalUsageDurationMillis, 
                long startTimeMillis, 
                long endTimeMillis)
```

Constructor for `https://developer.android.com/reference/android/app/usage/AppUsageDuration`.

<br />

| Parameters ||
|---|---|
| `packageName` | `String`: package name of the app. This value cannot be `null`. <br /> |
| `totalUsageDurationMillis` | `long`: total duration the app was used, in milliseconds. Value is a non-negative duration in milliseconds. <br /> |
| `startTimeMillis` | `long`: start of the time range for which the usage duration is valid, in milliseconds since epoch. Value is a non-negative timestamp measured as the number of milliseconds since 1970-01-01T00:00:00Z. <br /> |
| `endTimeMillis` | `long`: end of the time range for which the usage duration is valid, in milliseconds since epoch. Value is a non-negative timestamp measured as the number of milliseconds since 1970-01-01T00:00:00Z. <br /> |

## Public methods

### describeContents

Added in [version 37.2](https://developer.android.com/topic/libraries/support-library/revisions)

```
public int describeContents ()
```

Describe the kinds of special objects contained in this Parcelable
instance's marshaled representation. For example, if the object will
include a file descriptor in the output of `https://developer.android.com/reference/android/os/Parcelable#writeToParcel(android.os.Parcel,%20int)`,
the return value of this method must include the
`https://developer.android.com/reference/android/os/Parcelable#CONTENTS_FILE_DESCRIPTOR` bit.

<br />

| Returns ||
|---|---|
| `int` | a bitmask indicating the set of special object types marshaled by this Parcelable object instance. Value is either `0` or - `https://developer.android.com/reference/android/os/Parcelable#CONTENTS_FILE_DESCRIPTOR` |

### equals

Added in [version 37.2](https://developer.android.com/topic/libraries/support-library/revisions)

```
public boolean equals (Object o)
```

Indicates whether some other object is "equal to" this one.


The `equals` method implements an equivalence relation
on non-null object references:

- It is *reflexive*: for any non-null reference value `x`, `x.equals(x)` should return `true`.
- It is *symmetric*: for any non-null reference values `x` and `y`, `x.equals(y)` should return `true` if and only if `y.equals(x)` returns `true`.
- It is *transitive*: for any non-null reference values `x`, `y`, and `z`, if `x.equals(y)` returns `true` and `y.equals(z)` returns `true`, then `x.equals(z)` should return `true`.
- It is *consistent*: for any non-null reference values `x` and `y`, multiple invocations of `x.equals(y)` consistently return `true` or consistently return `false`, provided no information used in `equals` comparisons on the objects is modified.
- For any non-null reference value `x`, `x.equals(null)` should return `false`.


An equivalence relation partitions the elements it operates on
into *equivalence classes*; all the members of an
equivalence class are equal to each other. Members of an
equivalence class are substitutable for each other, at least
for some purposes.

<br />

| Parameters ||
|---|---|
| `o` | `Object`: This value may be `null`. <br /> |

| Returns ||
|---|---|
| `boolean` | `true` if this object is the same as the obj argument; `false` otherwise. <br /> |

### getEndTimeMillis

Added in [version 37.2](https://developer.android.com/topic/libraries/support-library/revisions)

```
public long getEndTimeMillis ()
```

Returns the end of the time range for which the usage duration is valid, in milliseconds
since epoch.


Value is a non-negative timestamp measured as the number of
milliseconds since 1970-01-01T00:00:00Z.

<br />

| Returns ||
|---|---|
| `long` | the end of the time range for which the usage duration is valid, in milliseconds since epoch. Value is a non-negative timestamp measured as the number of milliseconds since 1970-01-01T00:00:00Z. <br /> |

### getPackageName

Added in [version 37.2](https://developer.android.com/topic/libraries/support-library/revisions)

```
public String getPackageName ()
```

Returns the package name of the app.

<br />

| Returns ||
|---|---|
| `https://developer.android.com/reference/java/lang/String` | the package name of the app. This value cannot be `null`. <br /> |

### getStartTimeMillis

Added in [version 37.2](https://developer.android.com/topic/libraries/support-library/revisions)

```
public long getStartTimeMillis ()
```

Returns the start of the time range for which the usage duration is valid, in milliseconds
since epoch.


Value is a non-negative timestamp measured as the number of
milliseconds since 1970-01-01T00:00:00Z.

<br />

| Returns ||
|---|---|
| `long` | the start of the time range for which the usage duration is valid, in milliseconds since epoch. Value is a non-negative timestamp measured as the number of milliseconds since 1970-01-01T00:00:00Z. <br /> |

### getTotalUsageDurationMillis

Added in [version 37.2](https://developer.android.com/topic/libraries/support-library/revisions)

```
public long getTotalUsageDurationMillis ()
```

Returns the total duration the app was used during the range, measured in milliseconds.


Value is a non-negative duration in milliseconds.

<br />

| Returns ||
|---|---|
| `long` | the total duration the app was used, in milliseconds. Value is a non-negative duration in milliseconds. <br /> |

### hashCode

Added in [version 37.2](https://developer.android.com/topic/libraries/support-library/revisions)

```
public int hashCode ()
```

Returns a hash code value for the object. This method is
supported for the benefit of hash tables such as those provided by
`https://developer.android.com/reference/java/util/HashMap`.


The general contract of `hashCode` is:

- Whenever it is invoked on the same object more than once during an execution of a Java application, the `hashCode` method must consistently return the same integer, provided no information used in `equals` comparisons on the object is modified. This integer need not remain consistent from one execution of an application to another execution of the same application.
- If two objects are equal according to the `https://developer.android.com/reference/java/lang/Object#equals(java.lang.Object)` method, then calling the `hashCode` method on each of the two objects must produce the same integer result.
- It is *not* required that if two objects are unequal according to the `https://developer.android.com/reference/java/lang/Object#equals(java.lang.Object)` method, then calling the `hashCode` method on each of the two objects must produce distinct integer results. However, the programmer should be aware that producing distinct integer results for unequal objects may improve the performance of hash tables.

<br />

<br />

| Returns ||
|---|---|
| `int` | a hash code value for this object. <br /> |

### toString

Added in [version 37.2](https://developer.android.com/topic/libraries/support-library/revisions)

```
public String toString ()
```

Returns a string representation of the object.

<br />

| Returns ||
|---|---|
| `https://developer.android.com/reference/java/lang/String` | a string representation of the object. <br /> |

### writeToParcel

Added in [version 37.2](https://developer.android.com/topic/libraries/support-library/revisions)

```
public void writeToParcel (Parcel dest, 
                int flags)
```

Flatten this object in to a Parcel.

<br />

| Parameters ||
|---|---|
| `dest` | `Parcel`: This value cannot be `null`. <br /> |
| `flags` | `int`: Additional flags about how the object should be written. May be 0 or `https://developer.android.com/reference/android/os/Parcelable#PARCELABLE_WRITE_RETURN_VALUE`. Value is either `0` or a combination of the following: - `https://developer.android.com/reference/android/os/Parcelable#PARCELABLE_WRITE_RETURN_VALUE` |