Consumer | API reference | Android Developers (original) (raw)
@FunctionalInterface interface Consumer<T : Any!>
Represents an operation that accepts a single input argument and returns no result. Unlike most other functional interfaces, Consumer is expected to operate via side-effects.
This is a functional interface whose functional method is [accept(java.lang.Object)](#accept%28java.util.function.Consumer.T%29).
Summary
| Public methods | |
|---|---|
| abstract Unit | accept(t: T) Performs this operation on the given argument. |
| open Consumer<T>! | andThen(after: Consumer<in T>!) Returns a composed Consumer that performs, in sequence, this operation followed by the after operation. |
Public methods
accept
abstract fun accept(t: T): Unit
Performs this operation on the given argument.
| Parameters | |
|---|---|
| t | T: the input argument |
andThen
open fun andThen(after: Consumer!): Consumer!
Returns a composed Consumer that performs, in sequence, this operation followed by the after operation. If performing either operation throws an exception, it is relayed to the caller of the composed operation. If performing this operation throws an exception, the after operation will not be performed.
| Parameters | |
|---|---|
| after | Consumer<in T>!: the operation to perform after this operation |
| Return | |
|---|---|
| Consumer<T>! | a composed Consumer that performs in sequence this operation followed by the after operation |
| Exceptions | |
|---|---|
| java.lang.NullPointerException | if after is null |
Content and code samples on this page are subject to the licenses described in the Content License. Java and OpenJDK are trademarks or registered trademarks of Oracle and/or its affiliates.
Last updated 2025-02-10 UTC.