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
17package androidx.lifecycle;
18
19import android.annotation.SuppressLint;
20import android.app.Application;
21
22import androidx.annotation.NonNull;
23
24/**
25 * Application context aware {@link ViewModel}.
26 * <p>
27 * Subclasses must have a constructor which accepts {@link Application} as the only parameter.
28 * <p>
29 */
30public class AndroidViewModel extends ViewModel {
31    @SuppressLint("StaticFieldLeak")
32    private Application mApplication;
33
34    public AndroidViewModel(@NonNull Application application) {
35        mApplication = application;
36    }
37
38    /**
39     * Return the application.
40     */
41    @SuppressWarnings("TypeParameterUnusedInFormals")
42    @NonNull
43    public <T extends Application> T getApplication() {
44        //noinspection unchecked
45        return (T) mApplication;
46    }
47}
48