1/* 2 * Copyright (C) 2018 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16package android.annotation; 17 18import static java.lang.annotation.ElementType.CONSTRUCTOR; 19import static java.lang.annotation.ElementType.FIELD; 20import static java.lang.annotation.ElementType.METHOD; 21import static java.lang.annotation.ElementType.TYPE; 22import static java.lang.annotation.RetentionPolicy.SOURCE; 23 24import android.content.pm.PackageManager; 25 26import java.lang.annotation.Retention; 27import java.lang.annotation.Target; 28 29/** 30 * Denotes that the annotated element requires one or more device features. This 31 * is used to auto-generate documentation. 32 * 33 * @see PackageManager#hasSystemFeature(String) 34 * @hide 35 */ 36@Retention(SOURCE) 37@Target({TYPE,FIELD,METHOD,CONSTRUCTOR}) 38public @interface RequiresFeature { 39 /** 40 * The name of the device feature that is required. 41 * 42 * @see PackageManager#hasSystemFeature(String) 43 */ 44 String value(); 45} 46