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