Pair

Added in 1.1.0

Kotlin |Java

class Pair<F, S>

Container to ease passing around a tuple of two objects. This object provides a sensible implementation of equals(), returning true if equals() is true on each of the contained objects.

Summary

Public constructors
`Pair(first: F!, second: S!)` Constructor for a Pair.

Public functions
`java-static Pair<A!, B!>`	`<A, B> create(a: A!, b: B!)` Convenience method for creating an appropriately typed pair.
`Boolean`	`equals(o: Any!)` Checks the two objects for equality by delegating to their respective `equals` methods.
`Int`	`hashCode()` Compute a hash code using the hash codes of the underlying objects
`String`	`toString()`

Public properties
`F!`	`first`
`S!`	`second`

Extension functions
`inline operator F`	`<F : Any?, S : Any?> Pair<F, S>.component1()` Returns the first component of the pair.
`inline operator S`	`<F : Any?, S : Any?> Pair<F, S>.component2()` Returns the second component of the pair.
`inline Pair<F, S>`	`<F : Any?, S : Any?> Pair<F, S>.toKotlinPair()` Returns this `AndroidX Pair` as a `Kotlin Pair`.

Public constructors

Pair

Added in 1.1.0

Pair(first: F!, second: S!)

Constructor for a Pair.

Parameters
`first: F!`	the first object in the Pair
`second: S!`	the second object in the pair

Public functions

create

Added in 1.1.0

java-static fun <A, B> create(a: A!, b: B!): Pair<A!, B!>

Convenience method for creating an appropriately typed pair.

Parameters
`a: A!`	the first object in the Pair
`b: B!`	the second object in the pair

Returns
`Pair<A!, B!>`	a Pair that is templatized with the types of a and b

equals

fun equals(o: Any!): Boolean

Checks the two objects for equality by delegating to their respective equals methods.

Parameters
`o: Any!`	the `Pair` to which this one is to be checked for equality

Returns
`Boolean`	true if the underlying objects of the Pair are both considered equal

hashCode

fun hashCode(): Int

Compute a hash code using the hash codes of the underlying objects

Returns
`Int`	a hashcode of the Pair

toString

fun toString(): String

Public properties

first

Added in 1.1.0

val first: F!

second

Added in 1.1.0

val second: S!

Extension functions

Pair.component1

Artifact: androidx.core:core

View Source

inline operator fun <F : Any?, S : Any?> Pair<F, S>.component1(): F

Returns the first component of the pair.

This method allows to use destructuring declarations when working with pairs, for example:

val (first, second) = myPair

Pair.component2

Artifact: androidx.core:core

View Source

inline operator fun <F : Any?, S : Any?> Pair<F, S>.component2(): S

Returns the second component of the pair.

This method allows to use destructuring declarations when working with pairs, for example:

val (first, second) = myPair

Pair.toKotlinPair

Artifact: androidx.core:core

View Source

inline fun <F : Any?, S : Any?> Pair<F, S>.toKotlinPair(): Pair<F, S>

Returns this AndroidX Pair as a Kotlin Pair.