1 /*
2  * Copyright (C) 2016 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.viewmodeltest;
18 
19 import android.os.Bundle;
20 
21 import androidx.annotation.Nullable;
22 import androidx.fragment.app.Fragment;
23 import androidx.fragment.app.FragmentActivity;
24 import androidx.lifecycle.ViewModelProviders;
25 import androidx.lifecycle.extensions.test.R;
26 
27 public class ViewModelActivity extends FragmentActivity {
28     public static final String KEY_FRAGMENT_MODEL = "fragment-model";
29     public static final String KEY_ACTIVITY_MODEL = "activity-model";
30     public static final String FRAGMENT_TAG_1 = "f1";
31     public static final String FRAGMENT_TAG_2 = "f2";
32 
33     public TestViewModel activityModel;
34     public TestViewModel defaultActivityModel;
35 
36     @Override
onCreate(@ullable Bundle savedInstanceState)37     protected void onCreate(@Nullable Bundle savedInstanceState) {
38         super.onCreate(savedInstanceState);
39         setContentView(R.layout.activity_view_model);
40         if (savedInstanceState == null) {
41             getSupportFragmentManager().beginTransaction()
42                     .add(R.id.fragment_container, new ViewModelFragment(), FRAGMENT_TAG_1)
43                     .add(new ViewModelFragment(), FRAGMENT_TAG_2)
44                     .commit();
45         }
46         activityModel = ViewModelProviders.of(this).get(KEY_ACTIVITY_MODEL, TestViewModel.class);
47         defaultActivityModel = ViewModelProviders.of(this).get(TestViewModel.class);
48     }
49 
50     public static class ViewModelFragment extends Fragment {
51         public TestViewModel fragmentModel;
52         public TestViewModel activityModel;
53         public TestViewModel defaultActivityModel;
54 
55         @Override
onCreate(@ullable Bundle savedInstanceState)56         public void onCreate(@Nullable Bundle savedInstanceState) {
57             super.onCreate(savedInstanceState);
58             fragmentModel = ViewModelProviders.of(this).get(KEY_FRAGMENT_MODEL,
59                     TestViewModel.class);
60             activityModel = ViewModelProviders.of(getActivity()).get(KEY_ACTIVITY_MODEL,
61                     TestViewModel.class);
62             defaultActivityModel = ViewModelProviders.of(getActivity()).get(TestViewModel.class);
63         }
64     }
65 }
66