1 /*
2  * Copyright (C) 2022 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 android.server.wm.overlay;
18 
19 import android.app.Activity;
20 import android.content.BroadcastReceiver;
21 import android.content.Context;
22 import android.content.Intent;
23 import android.content.IntentFilter;
24 import android.os.Bundle;
25 import android.view.WindowManager;
26 
27 public class TranslucentFloatingActivity extends Activity {
28 
29     @Override
onCreate(Bundle savedInstanceState)30     protected void onCreate(Bundle savedInstanceState) {
31         super.onCreate(savedInstanceState);
32         WindowManager.LayoutParams attributes = getWindow().getAttributes();
33         attributes.alpha = 0;
34         attributes.flags |= WindowManager.LayoutParams.FLAG_NOT_TOUCH_MODAL;
35         attributes.flags &= ~WindowManager.LayoutParams.FLAG_DIM_BEHIND;
36         getWindow().setAttributes(attributes);
37 
38         registerReceiver(mReceiver,
39                 new IntentFilter(Components.TranslucentFloatingActivity.ACTION_FINISH),
40                 Context.RECEIVER_EXPORTED);
41     }
42 
43     private final BroadcastReceiver mReceiver = new BroadcastReceiver() {
44         @Override
45         public void onReceive(Context context, Intent intent) {
46             if (Components.TranslucentFloatingActivity.ACTION_FINISH.equals(intent.getAction())) {
47                 unregisterReceiver(this);
48                 finish();
49                 if (intent.getBooleanExtra(
50                         Components.TranslucentFloatingActivity.EXTRA_FADE_EXIT, false)) {
51                     overridePendingTransition(0, R.anim.fade);
52                 }
53             }
54         }
55     };
56 
57 }
58