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The annotations that are used in the Litho library

There is a newer version: 0.50.1

/*
 * Copyright (c) 2017-present, Facebook, Inc.
 * All rights reserved.
 *
 * This source code is licensed under the BSD-style license found in the
 * LICENSE file in the root directory of this source tree. An additional grant
 * of patent rights can be found in the PATENTS file in the same directory.
 */

package com.facebook.litho.annotations;

import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;

/**
 * A method annotation used in classes that are annotated with {@link MountSpec}.
 * Methods annotated with {@link OnUnbind} take an Android Context as the first parameter,
 * the Object that the MountSpec mounts as the second parameter, followed by any number of
 * {@link Prop}s.
 * The method should return void.
 * This callback will be invoked every time the mounted object is not active anymore but has not
 * been unmounted yet. This happens for example when a LithoView can be in a state where it's
 * not on the screen anymore but it's not been unmounted yet (to re-use items in place for example).
 */
@Retention(RetentionPolicy.CLASS)
public @interface OnUnbind {

}