Added in [API level 37.2](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels)

# AppUsageDurationQuery

*** ** * ** ***

```
class AppUsageDurationQuery : Parcelable
```

|---|---|
| [kotlin.Any](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-any/index.html) ||
| ↳ | [android.app.usage.AppUsageDurationQuery](https://developer.android.com/reference/kotlin/android/app/usage/AppUsageDurationQuery#) |

Represents a query for application usage duration statistics. Used by `https://developer.android.com/reference/kotlin/android/app/usage/UsageStatsManager#queryAppUsageDuration(android.app.usage.AppUsageDurationQuery)` call.

This class only supports queries for the past 30 days. Start times older than 30 days will result in an empty list.

## Summary

| Nested classes ||
|---|---|
|   | `https://developer.android.com/reference/kotlin/android/app/usage/AppUsageDurationQuery.Builder` Builder for `https://developer.android.com/reference/kotlin/android/app/usage/AppUsageDurationQuery#`. |

Inherited constants From class `https://developer.android.com/reference/kotlin/android/os/Parcelable.html#` `https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html` `https://developer.android.com/reference/kotlin/android/os/Parcelable.html#CONTENTS_FILE_DESCRIPTOR:kotlin.Int`


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

<br />

`https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html` `https://developer.android.com/reference/kotlin/android/os/Parcelable.html#PARCELABLE_WRITE_RETURN_VALUE:kotlin.Int`


Flag for use with `https://developer.android.com/reference/kotlin/android/os/Parcelable.html#writeToParcel(android.os.Parcel,%20kotlin.Int)`: 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)`". Some implementations may want to release resources at this point.

<br />

| Public methods ||
|---|---|
| [Int](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html) | `https://developer.android.com/reference/kotlin/android/app/usage/AppUsageDurationQuery#describeContents()()` Describe the kinds of special objects contained in this Parcelable instance's marshaled representation. |
| [Boolean](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-boolean/index.html) | `https://developer.android.com/reference/kotlin/android/app/usage/AppUsageDurationQuery#equals(kotlin.Any)(other: https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-any/index.html?)` Indicates whether some other object is "equal to" this one. |
| [Long](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-long/index.html) | `https://developer.android.com/reference/kotlin/android/app/usage/AppUsageDurationQuery#getEndTimeMillis()()` Returns the exclusive timestamp to indicate the end of the range of events. |
| [Int](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html) | `https://developer.android.com/reference/kotlin/android/app/usage/AppUsageDurationQuery#getIntervalType()()` Returns the time interval by which the stats are aggregated. |
| [Long](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-long/index.html) | `https://developer.android.com/reference/kotlin/android/app/usage/AppUsageDurationQuery#getStartTimeMillis()()` Returns the inclusive timestamp to indicate the start of the range of events. |
| [Int](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html) | `https://developer.android.com/reference/kotlin/android/app/usage/AppUsageDurationQuery#hashCode()()` Returns a hash code value for the object. |
| [String](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-string/index.html) | `https://developer.android.com/reference/kotlin/android/app/usage/AppUsageDurationQuery#toString()()` Returns a string representation of the object. |
| [Unit](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-unit/index.html) | `https://developer.android.com/reference/kotlin/android/app/usage/AppUsageDurationQuery#writeToParcel(android.os.Parcel,%20kotlin.Int)(dest: https://developer.android.com/reference/kotlin/android/os/Parcel.html#, flags: https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html)` Flatten this object in to a Parcel. |

| Properties ||
|---|---|
| static [Parcelable.Creator](https://developer.android.com/reference/kotlin/android/os/Parcelable.Creator.html#)\<[AppUsageDurationQuery](https://developer.android.com/reference/kotlin/android/app/usage/AppUsageDurationQuery#)!\> | `https://developer.android.com/reference/kotlin/android/app/usage/AppUsageDurationQuery#CREATOR:android.os.Parcelable.Creator` <br /> |

## Public methods

### describeContents

Added in [API level 37.2](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels)

```
fun describeContents(): Int
```

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/kotlin/android/os/Parcelable.html#writeToParcel(android.os.Parcel,%20kotlin.Int)`, the return value of this method must include the `https://developer.android.com/reference/kotlin/android/os/Parcelable.html#CONTENTS_FILE_DESCRIPTOR:kotlin.Int` bit.

| Return ||
|---|---|
| `https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html` | 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/kotlin/android/os/Parcelable.html#CONTENTS_FILE_DESCRIPTOR:kotlin.Int` |

### equals

Added in [API level 37.2](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels)

```
fun equals(other: Any?): Boolean
```

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.

| Parameters ||
|---|---|
| `obj` | the reference object with which to compare. |
| `o` | This value may be `null`. |

| Return ||
|---|---|
| `https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-boolean/index.html` | `true` if this object is the same as the obj argument; `false` otherwise. |

### getEndTimeMillis

Added in [API level 37.2](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels)

```
fun getEndTimeMillis(): Long
```

Returns the exclusive timestamp to indicate the end of the range of events. Defined in terms of "Unix time", see `https://developer.android.com/reference/kotlin/java/lang/System.html#currentTimeMillis()`.   
Value is a non-negative timestamp measured as the number of milliseconds since 1970-01-01T00:00:00Z.

| Return ||
|---|---|
| `https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-long/index.html` | Value is a non-negative timestamp measured as the number of milliseconds since 1970-01-01T00:00:00Z. |

### getIntervalType

Added in [API level 37.2](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels)

```
fun getIntervalType(): Int
```

Returns the time interval by which the stats are aggregated.

| Return ||
|---|---|
| `https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html` | Value is one of the following: - `https://developer.android.com/reference/kotlin/android/app/usage/UsageStatsManager#INTERVAL_DAILY:kotlin.Int` - `https://developer.android.com/reference/kotlin/android/app/usage/UsageStatsManager#INTERVAL_WEEKLY:kotlin.Int` - `https://developer.android.com/reference/kotlin/android/app/usage/UsageStatsManager#INTERVAL_MONTHLY:kotlin.Int` - `https://developer.android.com/reference/kotlin/android/app/usage/UsageStatsManager#INTERVAL_YEARLY:kotlin.Int` |

### getStartTimeMillis

Added in [API level 37.2](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels)

```
fun getStartTimeMillis(): Long
```

Returns the inclusive timestamp to indicate the start of the range of events. Defined in terms of "Unix time", see `https://developer.android.com/reference/kotlin/java/lang/System.html#currentTimeMillis()`.   
Value is a non-negative timestamp measured as the number of milliseconds since 1970-01-01T00:00:00Z.

| Return ||
|---|---|
| `https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-long/index.html` | Value is a non-negative timestamp measured as the number of milliseconds since 1970-01-01T00:00:00Z. |

### hashCode

Added in [API level 37.2](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels)

```
fun hashCode(): Int
```

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/kotlin/java/util/HashMap.html#`.

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/kotlin/java/lang/Object.html#equals(kotlin.Any)` 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/kotlin/java/lang/Object.html#equals(kotlin.Any)` 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.

| Return ||
|---|---|
| `https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html` | a hash code value for this object. |

### toString

Added in [API level 37.2](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels)

```
fun toString(): String
```

Returns a string representation of the object.

| Return ||
|---|---|
| `https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-string/index.html` | a string representation of the object. |

### writeToParcel

Added in [API level 37.2](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels)

```
fun writeToParcel(
    dest: Parcel, 
    flags: Int
): Unit
```

Flatten this object in to a Parcel.

| Parameters ||
|---|---|
| `dest` | [Parcel](https://developer.android.com/reference/kotlin/android/os/Parcel.html#): This value cannot be `null`. |
| `flags` | [Int](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html): Additional flags about how the object should be written. May be 0 or `https://developer.android.com/reference/kotlin/android/os/Parcelable.html#PARCELABLE_WRITE_RETURN_VALUE:kotlin.Int`. Value is either `0` or a combination of the following: - `https://developer.android.com/reference/kotlin/android/os/Parcelable.html#PARCELABLE_WRITE_RETURN_VALUE:kotlin.Int` |

## Properties

### CREATOR

Added in [API level 37.2](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels)

```
static val CREATOR: Parcelable.Creator<AppUsageDurationQuery!>
```