求教...
遇到一个问题:我做了个轮询方法,当在第一个activity时轮询,开启轮询
public ScheduledExecutorService scheduler = Executors
.newScheduledThreadPool(1);
public A a ;
String s;
public Manager(String s){
this.s = s;
}
public void aa(){
a = new A(s);
ScheduledFuture future2 = scheduler.scheduleAtFixedRate(a, 0, 5, TimeUnit.SECONDS);
}
当切换到第二个activity时,第一个activity暂停轮询,当从第二个切换回第一个时候,继续轮询,请问怎么实现?