Added in API level 24

LongFunction

@FunctionalInterface interface LongFunction<R : Any!>
java.util.function.LongFunction

Represents a function that accepts a long-valued argument and produces a result. This is the long-consuming primitive specialization for Function.

This is a functional interface whose functional method is apply(long).

Summary

Public methods
abstract R
apply(value: Long)

Applies this function to the given argument.

Public methods

apply

Added in API level 24
abstract fun apply(value: Long): R

Applies this function to the given argument.

Parameters
value Long: the function argument
Return
R the function result