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
17package android.transition;
18
19/**
20 * This adapter class provides empty implementations of the methods from {@link
21 * android.transition.Transition.TransitionListener}.
22 * Any custom listener that cares only about a subset of the methods of this listener can
23 * simply subclass this adapter class instead of implementing the interface directly.
24 */
25public abstract class TransitionListenerAdapter implements Transition.TransitionListener {
26
27    /**
28     * {@inheritDoc}
29     */
30    @Override
31    public void onTransitionStart(Transition transition) {
32    }
33
34    /**
35     * {@inheritDoc}
36     */
37    @Override
38    public void onTransitionEnd(Transition transition) {
39    }
40
41    /**
42     * {@inheritDoc}
43     */
44    @Override
45    public void onTransitionCancel(Transition transition) {
46    }
47
48    /**
49     * {@inheritDoc}
50     */
51    @Override
52    public void onTransitionPause(Transition transition) {
53    }
54
55    /**
56     * {@inheritDoc}
57     */
58    @Override
59    public void onTransitionResume(Transition transition) {
60    }
61}
62