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 androidx.lifecycle;
18 
19 /**
20  * {@link LiveData} which publicly exposes {@link #setValue(T)} and {@link #postValue(T)} method.
21  *
22  * @param <T> The type of data hold by this instance
23  */
24 @SuppressWarnings("WeakerAccess")
25 public class MutableLiveData<T> extends LiveData<T> {
26 
27     /**
28      * Creates a MutableLiveData initialized with the given {@code value}.
29      *
30      * @param value initial value
31      */
MutableLiveData(T value)32     public MutableLiveData(T value) {
33         super(value);
34     }
35 
36     /**
37      * Creates a MutableLiveData with no value assigned to it.
38      */
MutableLiveData()39     public MutableLiveData() {
40         super();
41     }
42 
43     @Override
postValue(T value)44     public void postValue(T value) {
45         super.postValue(value);
46     }
47 
48     @Override
setValue(T value)49     public void setValue(T value) {
50         super.setValue(value);
51     }
52 }
53