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 com.example.android.support.transition.widget;
18 
19 import android.os.Bundle;
20 
21 import androidx.annotation.LayoutRes;
22 import androidx.appcompat.app.AppCompatActivity;
23 import androidx.appcompat.widget.Toolbar;
24 
25 import com.example.android.support.transition.R;
26 
27 /**
28  * Base class for usages of the Transition API.
29  */
30 abstract class TransitionUsageBase extends AppCompatActivity {
31 
32     @LayoutRes
getLayoutResId()33     abstract int getLayoutResId();
34 
35     @Override
onCreate(Bundle savedInstanceState)36     protected void onCreate(Bundle savedInstanceState) {
37         super.onCreate(savedInstanceState);
38         setContentView(getLayoutResId());
39 
40         // Retrieve the Toolbar from our content view, and set it as the action bar
41         Toolbar toolbar = findViewById(R.id.toolbar);
42         setSupportActionBar(toolbar);
43     }
44 
45 }
46