问题描述
我试图做一些AsyncTask的与优先级同时运行。
I'm trying to make some ASyncTask to run simultaneously with a priority.
我创建具有的PriorityBlockingQueue一个的ThreadPoolExecutor和propper比较不错的工作为标准的Runnable。但是打电话时
I've creating a ThreadPoolExecutor with an PriorityBlockingQueue and the propper comparator works nice for standard Runnables.But when calling
new Task().executeOnExecutor(threadPool, (Void[]) null);
中的PriorityBlockingQueue的比较器接收一个Runnable（私人）内部的AsyncTask的（源$ C $ C称为mFuture）的，所以在比较，我不能确定可运行或阅读优先的价值。
The Comparator of the PriorityBlockingQueue receives a Runnable (private) internal of the ASyncTask (called mFuture in the source code), so in the comparator I can't identify the runnables or read a "priority" value.
我该如何解决呢？谢谢
推荐答案
从<一个借源$ C $ C href="https://github.com/android/platform_frameworks_base/blob/master/core/java/android/os/AsyncTask.java">android.os.AsyncTask并制作自己的com.company.AsyncTask的实现，在这里你可以控制你想在自己的code一切。
Borrow source code from android.os.AsyncTask and make your own com.company.AsyncTask implementation, where you can control everything you want in your own code.
android.os.AsyncTask也配备了准备烤执行人，THREAD_POOL_EXECUTOR和SERIAL_EXECUTOR：
android.os.AsyncTask come with two ready baked executor, THREAD_POOL_EXECUTOR and SERIAL_EXECUTOR:
private static final BlockingQueue<Runnable> sPoolWorkQueue =
new LinkedBlockingQueue<Runnable>(10);
/**
* An {@link Executor} that can be used to execute tasks in parallel.
*/
public static final Executor THREAD_POOL_EXECUTOR
= new ThreadPoolExecutor(CORE_POOL_SIZE, MAXIMUM_POOL_SIZE, KEEP_ALIVE,
TimeUnit.SECONDS, sPoolWorkQueue, sThreadFactory);
/**
* An {@link Executor} that executes tasks one at a time in serial
* order. This serialization is global to a particular process.
*/
public static final Executor SERIAL_EXECUTOR = new SerialExecutor();
在你的com.company.AsyncTask，创建另一个PRIORITY_THREAD_POOL_EXECUTOR和包装所有你实现这个类中（，你必须visiablity所有内部字段），并使用您AysncTask像这样：
in your com.company.AsyncTask, create another PRIORITY_THREAD_POOL_EXECUTOR and wrap all your implementation within this class (where you have visiablity to all internal fields), and use your AysncTask like so:
com.company.AsyncTask asyncTask = new com.company.AsyncTask();
asyncTask.setPriority(1);
asyncTask.executeOnExecutor(com.company.AsyncTask.PRIORITY_THREAD_POOL_EXECUTOR, (Void[]) null);
看看我的答案here看看我是如何创建自己的AsyncTask使executeOnExecutor（）API级别11之前的作品。
Check out my answer here and see how I create my own AsyncTask to make executeOnExecutor() works before API Level 11.
这篇关于AsyncTask的关于执行人和的PriorityBlockingQueue的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！