1 /*
2  * Copyright (C) 2020 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.android.systemui.statusbar.phone;
18 
19 /** An interface for a UI element controlled by the {@link AutoHideController}. */
20 public interface AutoHideElement {
21     /**
22      * Synchronizes the UI State of this {@link AutoHideElement}. This method is posted as a
23      * {@link Runnable} on the main thread.
24      */
synchronizeState()25     void synchronizeState();
26 
27     /**
28      * Returns {@code true} if the {@link AutoHideElement} is in a
29      * {@link BarTransitions#MODE_SEMI_TRANSPARENT} state.
30      */
isSemiTransparent()31     boolean isSemiTransparent();
32 }
33