1 /*
2  * Copyright 2021 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.example.android.receivecontent;
18 
19 import android.os.Handler;
20 import android.os.Looper;
21 import android.util.Log;
22 
23 import androidx.annotation.NonNull;
24 
25 import com.google.common.util.concurrent.ListeningScheduledExecutorService;
26 import com.google.common.util.concurrent.MoreExecutors;
27 
28 import java.util.concurrent.Executor;
29 import java.util.concurrent.Executors;
30 
31 final class MyExecutors {
MyExecutors()32     private MyExecutors() {}
33 
34     private static final ListeningScheduledExecutorService BG =
35             MoreExecutors.listeningDecorator(Executors.newSingleThreadScheduledExecutor());
36 
37     private static final Handler MAIN_HANDLER = new Handler(Looper.getMainLooper());
38     private static final Executor MAIN_EXECUTOR =
39             runnable -> {
40                 if (!MAIN_HANDLER.post(runnable)) {
41                     Log.e(Logcat.TAG, "Failed to post runnable on main thread");
42                 }
43             };
44 
45     @NonNull
bg()46     public static ListeningScheduledExecutorService bg() {
47         return BG;
48     }
49 
50     @NonNull
main()51     public static Executor main() {
52         return MAIN_EXECUTOR;
53     }
54 }
55