/*
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* Copyright (C) 2014 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.android.camera.async;
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import android.os.Handler;
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import android.os.HandlerThread;
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/**
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* Creates new handlers backed by threads with a specified lifetime.
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*/
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public class HandlerFactory {
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/**
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* @param lifetime The lifetime of the associated handler's thread.
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* @param threadName The name to assign to the created thread.
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* @return A handler backed by a new thread.
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*/
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public Handler create(Lifetime lifetime, String threadName) {
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final HandlerThread thread = new HandlerThread(threadName);
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thread.start();
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lifetime.add(new SafeCloseable() {
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@Override
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public void close() {
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thread.quitSafely();
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}
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});
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return new Handler(thread.getLooper());
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}
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/**
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* @param lifetime The lifetime of the associated handler's thread.
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* @param threadName The name to assign to the created thread.
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* @param javaThreadPriority The Java thread priority to use for this thread.
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* @return A handler backed by a new thread.
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*/
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public Handler create(Lifetime lifetime, String threadName, int javaThreadPriority) {
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final HandlerThread thread = new HandlerThread(threadName);
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thread.start();
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thread.setPriority(javaThreadPriority);
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lifetime.add(new SafeCloseable() {
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@Override
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public void close() {
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thread.quitSafely();
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}
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});
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return new Handler(thread.getLooper());
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}
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}
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