无法取消GWT中的重复计时器 [英] Can't cancel repeat timer in GWT

问题描述

我试图在GWT中安排一个重复的计时器，它将每毫秒运行一次，轮询某个事件，如果发现令人满意，则执行某些操作并取消计时器。
我试过这样做：

  final Timer t = new Timer（）{
 public void run ）{
 if（..condition is true，exit）{
 t.cancel（）; 
 doSomething（）; 
} 
} 
} 
 t.scheduleRepeating（1）; 
  

但是，我收到一条错误消息，如局部变量t可能未被初始化即可。我将这段代码放在 RequestBuilder 回调的 onSuccess 子句中。我该如何实现这一目标？

解决方案

您无法在初始化本身时访问它。

更改您的代码到

  final Timer fgf = new Timer（）{
 
 @Override 
 public void run（）{
 cancel（）; 
 System.out.println（）; 
 
} 
}; 
  

I am trying to schedule a repeating timer in GWT, it will run every one milli second, poll for a certain event, if it is found satisfactory, do something and cancel the timer. I tried doing this:

final Timer t = new Timer() {
    public void run() {
        if (..condition is true, exit) {
            t.cancel();
            doSomething();
        }
    }
}
t.scheduleRepeating(1);

However, I get an error message like the local variable t may not have been initialized. I am putting tis piece of code in the onSuccess clause of a RequestBuilder callback.. How do I achieve this?

解决方案

You cannot access it while intializing itself.

change your code to

 final Timer fgf = new Timer() {

            @Override
            public void run() {
                  cancel();
                  System.out.println();

            }
        };

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