RemoteCallable.java
/*
* Copyright 2018 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package androidx.remotecallback;
import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;
/**
* Used to tag a method as callable using {@link CallbackReceiver#createRemoteCallback}.
* <p>
* This is only valid on methods on concrete classes that implement {@link CallbackReceiver}.
* The method must have return type RemoteCallback, and should return {@link RemoteCallback#LOCAL}.
* <p>
* At compile time Methods tagged with {@link RemoteCallable} have hooks generated for
* them. The vast majority of the calls are done through generated code directly,
* so everything except for class names can be optimized/obfuscated. Given that
* remote callbacks are only accessible on platform components such as receivers
* and providers, they are already generally not able to be obfuscated.
*
* @see CallbackReceiver#createRemoteCallback
*/
@Retention(RetentionPolicy.SOURCE)
@Target(ElementType.METHOD)
public @interface RemoteCallable {
}