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 android.support.v17.leanback.widget;
18
19import android.content.Context;
20import android.util.AttributeSet;
21import android.view.SurfaceView;
22
23/**
24 * Activity transition will change transitionVisibility multiple times even the view is not
25 * running transition, which causes visual flickering during activity return transition.
26 * This class disables setTransitionVisibility() to avoid the problem.
27 * @hide
28 */
29public class VideoSurfaceView extends SurfaceView {
30
31    public VideoSurfaceView(Context context) {
32        super(context);
33    }
34
35    public VideoSurfaceView(Context context, AttributeSet attrs) {
36        super(context, attrs);
37    }
38
39    public VideoSurfaceView(Context context, AttributeSet attrs, int defStyleAttr) {
40        super(context, attrs, defStyleAttr);
41    }
42
43    /**
44     * Overrides hidden method View.setTransitionVisibility() to disable visibility changes
45     * in activity transition.
46     */
47    public void setTransitionVisibility(int visibility) {
48    }
49
50}
51