1/* 2 * Copyright 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 androidx.work.impl.utils.taskexecutor; 18 19import android.os.Handler; 20import android.os.Looper; 21import android.support.annotation.RestrictTo; 22 23import java.util.concurrent.ExecutorService; 24import java.util.concurrent.Executors; 25 26/** 27 * Default Task Executor for executing common tasks in WorkManager 28 * @hide 29 */ 30 31@RestrictTo(RestrictTo.Scope.LIBRARY_GROUP) 32public class DefaultTaskExecutor implements TaskExecutor { 33 private final ExecutorService mBackgroundExecutor = Executors.newSingleThreadExecutor(); 34 private final Handler mMainThreadHandler = new Handler(Looper.getMainLooper()); 35 36 @Override 37 public void postToMainThread(Runnable r) { 38 mMainThreadHandler.post(r); 39 } 40 41 @Override 42 public void executeOnBackgroundThread(Runnable r) { 43 mBackgroundExecutor.execute(r); 44 } 45} 46