java Android：使线程每秒运行的标准方法
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Android: Standard way to make a thread run every second
提问by madhu
I'm trying to run a Threadclass every second. I cant use Runnable. I tried in the following way, but its throwing StackOverflowException. Can anyone please let me know a standard method to make a thread class run every second.
我正在尝试Thread每秒上一堂课。我不能用Runnable。我尝试了以下方式，但它的抛出StackOverflowException. 任何人都可以让我知道使线程类每秒运行的标准方法。
public class A extends Thread {
public void run() {
//do my stuff
sleep(1*1000,0);
run();
}
}
回答by Adam Stelmaszczyk
Use Timer's schedule()or scheduleAtFixedRate()(difference between these two) with TimerTaskin the first argument, in which you are overriding the run()method.
在第一个参数中使用Timer's schedule()or scheduleAtFixedRate()（这两者之间的区别）TimerTask，您将在其中覆盖该run()方法。
Example:
例子：
Timer timer = new Timer();
timer.schedule(new TimerTask()
{
@Override
public void run()
{
// TODO do your thing
}
}, 0, 1000);
Your example causes stack overflow, because it's infinite recursion, you are always calling run()from run().
您的示例导致堆栈溢出，因为它是无限递归，您总是run()从run().
回答by Christian Rapp
Maybe you want to consider an alternative like ScheduledExecutorService
也许你想考虑像ScheduledExecutorService这样的替代方案
ScheduledExecutorService scheduleTaskExecutor = Executors.newScheduledThreadPool(5);
/*This schedules a runnable task every second*/
scheduleTaskExecutor.scheduleAtFixedRate(new Runnable() {
public void run() {
DoWhateverYouWant();
}
}, 0, 1, TimeUnit.SECONDS);
回答by Eng.Fouad
final ExecutorService es = Executors.newCachedThreadPool();
ScheduledExecutorService ses = Executors.newSingleThreadScheduledExecutor();
ses.scheduleAtFixedRate(new Runnable()
{
@Override
public void run()
{
es.submit(new Runnable()
{
@Override
public void run()
{
// do your work here
}
});
}
}, 0, 1, TimeUnit.SECONDS);
