JAVA代码定时避免重复,RxJava计时器可以永久重复，并且可以随时重新启动和停止...

In android i use Timer to execute task that repeats every 5 seconds and starts after 1 second in this way:

Timer timer = new Timer();

timer.scheduleAtFixedRate(new TimerTask() {

@Override

public void run() {

// Here is the repeated task

}

}, /*Start after*/1000, /*Repeats every*/5000);

// here i stop the timer

timer.cancel();

this timer will repeat Until i call timer.cancel()

I am learning RxJava with RxAndroid extension

So i found this code on internet, i tried it and it doesnt repeat:

Observable.timer(3000, TimeUnit.MILLISECONDS)

.subscribeOn(Schedulers.newThread())

.observeOn(AndroidSchedulers.mainThread())

.subscribe(new Action1() {

@Override

public void call(Long aLong) {

// here is the task that should repeat

}

});

so what is the alternative for the android Timer in RxJava.

解决方案

timer operator emits an item after a specified delay then completes. I think you looking for the interval operator.

Subscription subscription = Observable.interval(1000, 5000, TimeUnit.MILLISECONDS)

.subscribeOn(Schedulers.io())

.observeOn(AndroidSchedulers.mainThread())

.subscribe(new Action1() {

public void call(Long aLong) {

// here is the task that should repeat

}

});

if you want to stop it you just call unsubscribe on the subscription:

subscription.unsubscribe()