public @interface

CarProtocol

implements java.lang.annotation.Annotation

 androidx.car.app.annotations.CarProtocol

Gradle dependencies

compile group: 'androidx.car.app', name: 'app', version: '1.2.0-rc01'

  • groupId: androidx.car.app
  • artifactId: app
  • version: 1.2.0-rc01

Artifact androidx.car.app:app:1.2.0-rc01 it located at Google repository (https://maven.google.com/)

Overview

Any class annotated with this marker is part of the protocol layer for remote host rendering. Changes to these classes must take forward and backward compatibility into account.

Newer apps should be able to work with older hosts, if the functionality they use can be emulated using older APIs or if they don't use newer features. The RequiresCarApi annotation details on required versioning for compatibility for classes and methods.

Summary

Source

/*
 * Copyright 2021 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.car.app.annotations;

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

/**
 * Any class annotated with this marker is part of the protocol layer for remote host rendering.
 * Changes to these classes must take forward and backward compatibility into account.
 *
 * <p>Newer apps should be able to work with older hosts, if the functionality they use can be
 * emulated using older APIs or if they don't use newer features. The {@link RequiresCarApi}
 * annotation details on required versioning for compatibility for classes and methods.
 */
@Retention(RetentionPolicy.SOURCE)
@Target({ElementType.TYPE, ElementType.PARAMETER})
public @interface CarProtocol {
}