1 /*
2  * Copyright (C) 2015 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.hardware.radio;
18 
19 import android.annotation.SystemApi;
20 import android.os.Parcel;
21 import android.os.Parcelable;
22 
23 /**
24  * A CarRadioEvent object corresponds to a single radio event coming from the car.
25  *
26  * This works in conjunction with the callbacks already defined in {@link RadioCallback.Callback}.
27  * @hide
28  */
29 @SystemApi
30 public class CarRadioEvent implements Parcelable {
31     /**
32      * Event specifying that a radio preset has been changed.
33      */
34     public static final int RADIO_PRESET = 0;
35 
36     /**
37      * Event type.
38      */
39     private final int mType;
40 
41     /**
42      * CarRadioPreset for the event type EVENT_RADIO_PRESET.
43      */
44     private final CarRadioPreset mPreset;
45 
46     // Getters.
getPreset()47     public CarRadioPreset getPreset() {
48         return mPreset;
49     }
50 
getEventType()51     public int getEventType() {
52         return mType;
53     }
54 
55     @Override
describeContents()56     public int describeContents() {
57         return 0;
58     }
59 
60     @Override
writeToParcel(Parcel dest, int flags)61     public void writeToParcel(Parcel dest, int flags) {
62         dest.writeInt(mType);
63         dest.writeParcelable(mPreset, 0);
64     }
65 
66     public static final Parcelable.Creator<CarRadioEvent> CREATOR
67             = new Parcelable.Creator<CarRadioEvent>() {
68         public CarRadioEvent createFromParcel(Parcel in) {
69             return new CarRadioEvent(in);
70         }
71 
72         public CarRadioEvent[] newArray(int size) {
73             return new CarRadioEvent[size];
74         }
75     };
76 
CarRadioEvent(int type, CarRadioPreset preset)77     public CarRadioEvent(int type, CarRadioPreset preset) {
78         mType = type;
79         mPreset = preset;
80     }
81 
CarRadioEvent(Parcel in)82     private CarRadioEvent(Parcel in) {
83         mType = in.readInt();
84         mPreset = in.readParcelable(CarRadioPreset.class.getClassLoader());
85     }
86 
toString()87     public String toString() {
88         String data = "";
89         switch (mType) {
90           case RADIO_PRESET:
91               data = mPreset.toString();
92         }
93         return mType + " " + data;
94     }
95 }
96