blocks|key|1337379|text|ScheduledExecutorService是一个接口(契约)，ScheduledThreadPoolExecutor实现了这个接口。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1337380|由于不能直接实例化接口，所以必须通过直接实例化ScheduledThreadPoolExecutor或通过工厂方法(如返回ScheduledThreadPoolExecutor实例的java.util.concurrent.Executors+)来使用实现。|1337381|e.g|1337382|ScheduledExecutorService+scheduler+=
+Executors.newScheduledThreadPool(1);

scheduler.scheduleAtFixedRate(beeper,+10,+10,+SECONDS);+//returns+a+ScheduledFuture|code-block|syntax|javascript|1337383|看看Andriod的预定执行者服务使用情况|1337384|entityMap|0|LINK|mutability|MUTABLE|url|http://developer.android.com/reference/java/util/concurrent/ScheduledExecutorService.html^0|0|O|Y|R|0|N|R|1P|R|2J|U|0|0|0|2|J|0|0^^$0|@$1|2|3|4|5|6|7|Y|8|@$9|Z|A|10|B|C]|$9|11|A|12|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|13|8|@$9|14|A|15|B|C]|$9|16|A|17|B|C]|$9|18|A|19|B|C]]|D|@]|E|$]]|$1|H|3|I|5|6|7|1A|8|@]|D|@]|E|$]]|$1|J|3|K|5|L|7|1B|8|@]|D|@]|E|$M|N]]|$1|O|3|P|5|6|7|1C|8|@]|D|@$9|1D|A|1E|1|1F]]|E|$]]|$1|Q|3|-4|5|6|7|1G|8|@]|D|@]|E|$]]]|R|$S|$5|T|U|V|E|$W|X]]]]

<code>ScheduledExecutorService</code> is an interface (a contract) and <code>ScheduledThreadPoolExecutor</code> implements that interface. 

Since you cannot directly instantiate an interface, you have to use implementation through instantiating <code>ScheduledThreadPoolExecutor</code> directly or through means of factory method such as <code>java.util.concurrent.Executors</code> that returns an instance of <code>ScheduledThreadPoolExecutor</code>.

e.g

<pre><code>ScheduledExecutorService scheduler =
 Executors.newScheduledThreadPool(1);

scheduler.scheduleAtFixedRate(beeper, 10, 10, SECONDS); //returns a ScheduledFuture
</code></pre>

Have a look at <a href="http://developer.android.com/reference/java/util/concurrent/ScheduledExecutorService.html" rel="noreferrer">Scheduled Executor Service Usage for Andriod</a>

blocks|key|170357|text|这是一样的，ScheduledThreadPoolExecutor是ScheduledExecutorService的一个实现。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|170358|entityMap^0|6|R|Y|O|0^^$0|@$1|2|3|4|5|6|7|H|8|@$9|I|A|J|B|C]|$9|K|A|L|B|C]]|D|@]|E|$]]|$1|F|3|-4|5|6|7|M|8|@]|D|@]|E|$]]]|G|$]]

This is the same, <code>ScheduledThreadPoolExecutor</code> is an implementation of <code>ScheduledExecutorService</code>

blocks|key|849854|text|使用执行器创建ScheduledThreadPoolExecutor|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|849855|你也可以看看这个|849856|http://tutorials.jenkov.com/java-util-concurrent/scheduledexecutorservice.html|849857|如果您想定期使用它，则应该使用此方法。|849858|scheduleAtFixedRate+(可运行，长initialDelay，长周期，TimeUnit时间单位)|849859|entityMap|0|LINK|mutability|MUTABLE|url|https://stackoverflow.com/questions/10200230/creating-scheduledthreadpoolexecutor-using-executors|1^0|0|Y|0|0|0|0|26|1|0|0|0^^$0|@$1|2|3|4|5|6|7|U|8|@]|9|@$A|V|B|W|1|X]]|C|$]]|$1|D|3|E|5|6|7|Y|8|@]|9|@]|C|$]]|$1|F|3|G|5|6|7|Z|8|@]|9|@$A|10|B|11|1|12]]|C|$]]|$1|H|3|I|5|6|7|13|8|@]|9|@]|C|$]]|$1|J|3|K|5|6|7|14|8|@]|9|@]|C|$]]|$1|L|3|-4|5|6|7|15|8|@]|9|@]|C|$]]]|M|$N|$5|O|P|Q|C|$R|S]]|T|$5|O|P|Q|C|$R|G]]]]

<a href="https://stackoverflow.com/questions/10200230/creating-scheduledthreadpoolexecutor-using-executors">Creating ScheduledThreadPoolExecutor Using Executors</a>

you can also look this one

<a href="http://tutorials.jenkov.com/java-util-concurrent/scheduledexecutorservice.html" rel="nofollow noreferrer">http://tutorials.jenkov.com/java-util-concurrent/scheduledexecutorservice.html</a>

if you want to use it periodically, you should use this method

scheduleAtFixedRate (Runnable, long initialDelay, long period, TimeUnit timeunit)

blocks|key|170433|text|简单的例子，希望能有所帮助。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|170434|public+class+MyTask+implements+Runnable+{

++++public+MyTask()+{
++++}

++++public+void+run()+{
++++++++System.out.println(Thread.currentThread().getName());
++++++++System.out.println("File+uploading+is+start1");

++++++++System.out.println("file+uploaded");
++++}

}

public+class+ScheduledExecutorsTest+{
++++public+ScheduledExecutorsTest()+{
++++}

++++/**
+++++*+@param+args+the+command+line+arguments
+++++*/
++++public+static+void+main(String[]+args)+{
++++++++int+time+=+10+;
++++++++ScheduledExecutorService+scheduledExecutorService+=+Executors.newScheduledThreadPool(1);
++++++++MyTask+myTask+=+new+MyTask();
++++++++//scheduledExecutorService.scheduleAtFixedRate(myTask,+0L,+9L,+TimeUnit.SECONDS);
++++++++scheduledExecutorService.schedule(myTask,+3L,+TimeUnit.SECONDS);

++++++++scheduledExecutorService.shutdown();
++++}

}|code-block|syntax|javascript|170435|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

Simple Example hopefully it may help

<pre><code>public class MyTask implements Runnable {

 public MyTask() {
 }

 public void run() {
 System.out.println(Thread.currentThread().getName());
 System.out.println("File uploading is start1");

 System.out.println("file uploaded");
 }

}

public class ScheduledExecutorsTest {
 public ScheduledExecutorsTest() {
 }

 /**
 * @param args the command line arguments
 */
 public static void main(String[] args) {
 int time = 10 ;
 ScheduledExecutorService scheduledExecutorService = Executors.newScheduledThreadPool(1);
 MyTask myTask = new MyTask();
 //scheduledExecutorService.scheduleAtFixedRate(myTask, 0L, 9L, TimeUnit.SECONDS);
 scheduledExecutorService.schedule(myTask, 3L, TimeUnit.SECONDS);

 scheduledExecutorService.shutdown();
 }

}
</code></pre>

I'm building an Android App which have to periodically do something in a Service. And I found that using <code>ScheduledThreadPoolExecutor</code> and <code>ScheduledExecutorService</code> is preferable to <code>Timer</code>. 

Can anyone explain the difference between <code>ScheduledExecutorService</code> and <code>ScheduledThreadPoolExecutor</code> and which one is more suitable for Android?

Update

I just found <a href="https://guides.codepath.com/android/Repeating-Periodic-Tasks" rel="nofollow noreferrer">this article</a> and <a href="https://stackoverflow.com/questions/14376470/scheduling-recurring-task-in-android">this post</a> explain the difference between several way to implement repeating periodic tasks. In my case, <code>ScheduledThreadPoolExecutor</code> and <code>AlarmManager</code> is more suitable.

ScheduledExecutorService or ScheduledThreadPoolExecutor

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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我正在构建一个Android应用程序，它必须定期在服务中做一些事情。我发现使用ScheduledThreadPoolExecutor和ScheduledExecutorService比使用Timer更好。有人能解释ScheduledExecutorService和ScheduledThreadPoolExecutor之间的区别吗?哪一个更适合安卓？更新我刚刚发现和解释了实现重复周期性任务的几种方法

问ScheduledExecutorService或ScheduledThreadPoolExecutor
EN

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