1 package androidx.appcompat.app;
2 /*
3  * Copyright (C) 2016 The Android Open Source Project
4  *
5  * Licensed under the Apache License, Version 2.0 (the "License");
6  * you may not use this file except in compliance with the License.
7  * You may obtain a copy of the License at
8  *
9  *      http://www.apache.org/licenses/LICENSE-2.0
10  *
11  * Unless required by applicable law or agreed to in writing, software
12  * distributed under the License is distributed on an "AS IS" BASIS,
13  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14  * See the License for the specific language governing permissions and
15  * limitations under the License.
16  */
17 
18 import android.os.Bundle;
19 import android.view.LayoutInflater;
20 import android.view.View;
21 import android.view.ViewGroup;
22 
23 import androidx.annotation.Nullable;
24 import androidx.appcompat.test.R;
25 import androidx.appcompat.testutils.BaseTestActivity;
26 import androidx.fragment.app.Fragment;
27 
28 
29 public class FragmentContentIdActivity extends BaseTestActivity {
30 
31     @Override
onCreate(Bundle savedInstanceState)32     protected void onCreate(Bundle savedInstanceState) {
33         super.onCreate(savedInstanceState);
34 
35         getSupportFragmentManager().beginTransaction()
36                 .add(android.R.id.content, new FragmentA())
37                 .commit();
38     }
39 
40     @Override
getContentViewLayoutResId()41     protected int getContentViewLayoutResId() {
42         // We don't want to set a layout
43         return 0;
44     }
45 
replaceWithFragmentB()46     public void replaceWithFragmentB() {
47         getSupportFragmentManager().beginTransaction()
48                 .replace(android.R.id.content, new FragmentB())
49                 .commit();
50     }
51 
52     public static class FragmentA extends Fragment {
53         @Override
onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState)54         public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container,
55                 @Nullable Bundle savedInstanceState) {
56             View view = new View(getContext());
57             view.setId(R.id.fragment_a);
58             return view;
59         }
60     }
61 
62     public static class FragmentB extends Fragment {
63         @Nullable
64         @Override
onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState)65         public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container,
66                 @Nullable Bundle savedInstanceState) {
67             View view = new View(getContext());
68             view.setId(R.id.fragment_b);
69             return view;
70         }
71     }
72 
73 }
74 
75 
76 
77