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  */
16 package android.annotation;
17 
18 import static java.lang.annotation.ElementType.CONSTRUCTOR;
19 import static java.lang.annotation.ElementType.FIELD;
20 import static java.lang.annotation.ElementType.METHOD;
21 import static java.lang.annotation.ElementType.TYPE;
22 import static java.lang.annotation.RetentionPolicy.SOURCE;
23 
24 import android.content.pm.PackageManager;
25 
26 import java.lang.annotation.Retention;
27 import 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})
38 public @interface RequiresFeature {
39     /**
40      * The name of the device feature that is required.
41      *
42      * @see PackageManager#hasSystemFeature(String)
43      */
value()44     String value();
45 }
46