HandlerFactory.java revision d8463954727c9f8b688e69476439830cadb7b45a
1/* 2 * Copyright (C) 2014 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 com.android.camera.async; 18 19import android.os.Handler; 20import android.os.HandlerThread; 21 22/** 23 * Creates new handlers backed by threads with a specified lifetime. 24 */ 25public class HandlerFactory { 26 /** 27 * @param lifetime The lifetime of the associated handler's thread. 28 * @param threadName The name to assign to the created thread. 29 * @return A handler backed by a new thread. 30 */ 31 public Handler create(Lifetime lifetime, String threadName) { 32 final HandlerThread thread = new HandlerThread(threadName); 33 thread.start(); 34 35 lifetime.add(new SafeCloseable() { 36 @Override 37 public void close() { 38 thread.quitSafely(); 39 } 40 }); 41 42 return new Handler(thread.getLooper()); 43 } 44} 45