Android: How do I stop Runnable?

android runnable
Primož Kralj picture Primož Kralj · Feb 26, 2012 · Viewed 91.9k times · Source

I tried this way:

private Runnable changeColor = new Runnable() {
   private boolean killMe=false;
   public void run() {
       //some work
       if(!killMe) color_changer.postDelayed(changeColor, 150);
   }
   public void kill(){
       killMe=true;
   }
};

but I can't access kill() method!

Answer

yorkw picture yorkw · Feb 27, 2012

Instead implement your own thread.kill() mechanism, using existing API provided by the SDK. Manage your thread creation within a threadpool, and use Future.cancel() to kill the running thread:

ExecutorService executorService = Executors.newSingleThreadExecutor();
Runnable longRunningTask = new Runnable();

// submit task to threadpool:
Future longRunningTaskFuture = executorService.submit(longRunningTask);

... ...
// At some point in the future, if you want to kill the task:
longRunningTaskFuture.cancel(true);
... ...

Cancel method will behave differently based on your task running state, check the API for more details.

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