1 /*
2  * Copyright (C) 2017 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 com.google.android.car.obd2app;
18 
19 import android.content.Context;
20 import android.preference.ListPreference;
21 import android.util.AttributeSet;
22 
23 public class IntegerListPreference extends ListPreference {
IntegerListPreference(Context context, AttributeSet attrs)24     public IntegerListPreference(Context context, AttributeSet attrs) {
25         super(context, attrs);
26     }
27 
IntegerListPreference(Context context)28     public IntegerListPreference(Context context) {
29         super(context);
30     }
31 
32     @Override
persistString(String value)33     protected boolean persistString(String value) {
34         return value != null && persistInt(Integer.valueOf(value));
35     }
36 
37     @Override
getPersistedString(String defaultReturnValue)38     protected String getPersistedString(String defaultReturnValue) {
39         if (getSharedPreferences().contains(getKey())) {
40             return String.valueOf(getPersistedInt(2));
41         } else {
42             return defaultReturnValue;
43         }
44     }
45 }
46