说明，该库fork自https://github.com/zhihu/RxLifecycle

对原库拓展了指定某个生命周期来终止事件，并将两库（一个是v4支持库）合并了，考虑到可能需要结合自身需求，所以没有像原库提pr，而是fork下来修改使用。

新增用法

Observable.interval(0, 2, TimeUnit.SECONDS)
        .compose(RxLifecycle.bind(MainActivity.this).<Long>withObservable(LifecyclePublisher.ON_STOP))
        .subscribeOn(Schedulers.computation())
        .observeOn(AndroidSchedulers.mainThread())
        .subscribe(new Consumer<Long>() {
            @Override
            public void accept(Long n) throws Exception {
                toast("Observable -> " + n.toString());
            }
        });

withObservable新增参数用于指定某个生命周期。

withFlowable、withCompletable、withSingle、withMaybe同理

我是原文分割线

RxLifecycle (non-invasive)

This library is a non-invasive version of RxLifecycle. It can help you to automatically complete the observable sequences based on Activity or Fragment's lifecycle. There is an article about how it works.

Supports only RxJava 2 now.

Usage

Use the Transformers provided. bind(your activity or fragment).with(observable type).

RxLifecycle.bind(activity).withFlowable()
RxLifecycle.bind(activity).withObservable()
RxLifecycle.bind(activity).withCompletable()
RxLifecycle.bind(activity).withSingle()
RxLifecycle.bind(activity).withMaybe()

And then compose it to your original observable.

Observable.interval(0, 2, TimeUnit.SECONDS)
        .compose(RxLifecycle.bind(MainActivity.this).<Long>withObservable())
        .subscribeOn(Schedulers.computation())
        .observeOn(AndroidSchedulers.mainThread())
        .subscribe(new Consumer<Long>() {
            @Override
            public void accept(Long n) throws Exception {
                toast("Observable -> " + n.toString());
            }
        });

That's all. You needn't to extend your activity or fragment.

You can also observe the lifecycle events by using the .asFlowable() or .asObservable() methods to convert the RxLifecycle to a Flowable or Observable.

RxLifecycle.bind(this)
        .asFlowable()
        .subscribe(new Consumer<Integer>() {
            @Override
            public void accept(@LifecyclePublisher.Event Integer event) throws Exception {
                switch (event) {
                    case LifecyclePublisher.ON_START:
                        toast("Your activity is started.");
                        break;

                    case LifecyclePublisher.ON_STOP:
                        toast("Your activity is stopped.");
                        break;
                }
            }
        });

In addition, you can also bind observables to the FragmentManager or LifecyclePublisher.

Sample

Check out the sample for more detail.

SamanLan / RxLifecycle