RxJava 在Android中的应用(二)

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RxJava的事件序列

这里写图片描述

Observable.create()

        //创建observable被观察者        Observable.create(new Observable.OnSubscribe<String>() {            @Override            public void call(Subscriber<? super String> subscriber) {                subscriber.onNext("hello");//onNext()可以调用多次                subscriber.onCompleted();//事件序列结束标记                 //subscriber.onError();事件错误的标记            }        }).subscribe(new Observer<String>() {//观察者            @Override            public void onCompleted() {            }            @Override            public void onError(Throwable e) {            }            @Override            public void onNext(String s) {            }        });

Observable.just()

Observable.just("hello","are you ok ?").subscribe(new Observer<String>() {            @Override            public void onCompleted() {            }            @Override            public void onError(Throwable e) {            }            @Override            public void onNext(String s) {            }        });

Observable.from()

 String[] array = {"hello","java"};        Observable.from(array).subscribe(subscribe);//订阅者

 @Override    protected void onDestroy() {        super.onDestroy();        subscribe.unsubscribe();//销毁    }

public Subscriber<String> subscribe = new Subscriber<String>() {        @Override        public void onStart() {            super.onStart();        }        @Override        public void onCompleted() {        }        @Override        public void onError(Throwable e) {        }        @Override        public void onNext(String s) {        }    };

 Observable.from(array).subscribe(new Action1<String>() {            @Override            public void call(String s) {            }        }, new Action1<Throwable>() {            @Override            public void call(Throwable throwable) {            }        }, new Action0() {            @Override            public void call() {            }        });

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