1 /*
2  * Copyright (C) 2024 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.car.wm.displayarea
18 
19 import android.app.Activity
20 import android.os.Bundle
21 import android.view.WindowManager
22 import android.window.OnBackInvokedCallback
23 
24 /**
25  * This activity is meant to be used as a signal that a display area is hidden. Whenever this
26  * activity is at the top, the underlying display area should be considered hidden.
27  */
28 class DaHideActivity : Activity() {
29 
onCreatenull30     override fun onCreate(savedInstanceState: Bundle?) {
31         super.onCreate(savedInstanceState)
32         val callbackPriority = 1000
33         window.addFlags(WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE)
34         // Avoid finishing the activity on back pressed to in-turn avoid unwanted transitions.
35         onBackInvokedDispatcher.registerOnBackInvokedCallback(
36             callbackPriority,
37             object : OnBackInvokedCallback {
38                 override fun onBackInvoked() {
39                 }
40             }
41         )
42     }
43 }
44