1 /*
2  * Copyright (C) 2021 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 
17 package android.car.builtin.app;
18 
19 import android.annotation.SystemApi;
20 import android.car.builtin.os.ServiceManagerHelper;
21 import android.content.Context;
22 import android.os.RemoteException;
23 
24 import com.android.internal.app.IVoiceInteractionManagerService;
25 
26 /**
27  * Helper for VoiceInteractionManagerService related operations.
28  *
29  * @hide
30  */
31 @SystemApi(client = SystemApi.Client.MODULE_LIBRARIES)
32 public final class VoiceInteractionHelper {
33 
34     /** Checks if ${link VoiceInteractionManagerService} is available. */
isAvailable()35     public static boolean isAvailable() {
36         return getService() != null;
37     }
38 
39     /**
40      * Enables/disables voice interaction.
41      *
42      * @param enabled Whether to enable or disable voice interaction.
43      */
setEnabled(boolean enabled)44     public static void setEnabled(boolean enabled) throws RemoteException {
45         IVoiceInteractionManagerService service = getService();
46         if (service == null) {
47             return;
48         }
49         service.setDisabled(!enabled);
50     }
51 
getService()52     private static IVoiceInteractionManagerService getService() {
53         return IVoiceInteractionManagerService.Stub.asInterface(ServiceManagerHelper
54                 .getService(Context.VOICE_INTERACTION_MANAGER_SERVICE));
55     }
56 
57     /** Constructs {@link VoiceInteractionHelper}. */
VoiceInteractionHelper()58     private VoiceInteractionHelper() {
59         throw new UnsupportedOperationException("contains only static members");
60     }
61 }
62