RxJava与RxAndroid 操作符

本篇博客将会了解RxJava的操作符，主要体现在数据的展示或者传递方面

打印数组:

 String[] data = {"1", "2", "3"};
                Observable.from(data).subscribe(new Observer<String>() {
                    @Override
                    public void onCompleted() {
                        LogUtils.d("onCompleted():" + Thread.currentThread().getName());
                    }

                    @Override
                    public void onError(Throwable e) {
                        LogUtils.d("onError():" + Thread.currentThread().getName());
                    }

                    @Override
                    public void onNext(String s) {
                        LogUtils.d("onNext():data:" + s + "  线程" + Thread.currentThread().getName());
                    }
                });

结果:

12-25 03:27:52.341 13309-13309/com.rxandroid.test1 D/----->: onNext():data:1  线程main
12-25 03:27:52.341 13309-13309/com.rxandroid.test1 D/----->: onNext():data:2  线程main
12-25 03:27:52.341 13309-13309/com.rxandroid.test1 D/----->: onNext():data:3  线程main
12-25 03:27:52.341 13309-13309/com.rxandroid.test1 D/----->: onCompleted():main

简洁打印多个对象:

Observable.just("1", "2", "3").subscribe(new Observer<String>() {
                    @Override
                    public void onCompleted() {
                        LogUtils.d("onCompleted():" + Thread.currentThread().getName());
                    }

                    @Override
                    public void onError(Throwable e) {
                        LogUtils.d("onError():" + Thread.currentThread().getName());
                    }

                    @Override
                    public void onNext(String s) {
                        LogUtils.d("onNext():" + Thread.currentThread().getName());
                    }
                });

结果：

12-25 03:36:57.011 27949-27949/com.rxandroid.test1 D/----->: onNext():main
12-25 03:36:57.011 27949-27949/com.rxandroid.test1 D/----->: onNext():main
12-25 03:36:57.011 27949-27949/com.rxandroid.test1 D/----->: onNext():main
12-25 03:36:57.011 27949-27949/com.rxandroid.test1 D/----->: onCompleted():main

打印集合:

 List<String> list = new ArrayList<String>();
                list.add("1");
                list.add("2");
                list.add("3");
                Observable.from(list).subscribe(new Observer() {
                    @Override
                    public void onCompleted() {
                        LogUtils.d("onCompleted():" + Thread.currentThread().getName());
                    }

                    @Override
                    public void onError(Throwable e) {
                        LogUtils.d("onError():" + Thread.currentThread().getName());
                    }

                    @Override
                    public void onNext(Object o) {
                        LogUtils.d("onNext():data:" + o + "  线程" + Thread.currentThread().getName());
                    }
                });

打印结果:

12-25 03:39:51.001 27949-27949/com.rxandroid.test1 D/----->: onNext():data:1  线程main
12-25 03:39:51.001 27949-27949/com.rxandroid.test1 D/----->: onNext():data:2  线程main
12-25 03:39:51.001 27949-27949/com.rxandroid.test1 D/----->: onNext():data:3  线程main
12-25 03:39:51.001 27949-27949/com.rxandroid.test1 D/----->: onCompleted():main

打印观察者集合：

 List<Observable<String>> data = new ArrayList<Observable<String>>();
                // data.add(Observable.just("1","2","3"));
                data.add(Observable.just("4", "5", "6"));

                //  an Iterable of Observable sources competing to react first
                Observable.amb(data).subscribe(new Observer<String>() {
                    @Override
                    public void onCompleted() {
                        LogUtils.d("onCompleted():" + Thread.currentThread().getName());
                    }

                    @Override
                    public void onError(Throwable e) {
                        LogUtils.d("onError():" + Thread.currentThread().getName());
                    }

                    @Override
                    public void onNext(String o) {
                        LogUtils.d("onNext():data:" + o + "  线程" + Thread.currentThread().getName());
                    }
                });

打印结果:

12-25 03:41:19.551 27949-27949/com.rxandroid.test1 D/----->: onNext():data:4  线程main
12-25 03:41:19.551 27949-27949/com.rxandroid.test1 D/----->: onNext():data:5  线程main
12-25 03:41:19.551 27949-27949/com.rxandroid.test1 D/----->: onNext():data:6  线程main
12-25 03:41:19.551 27949-27949/com.rxandroid.test1 D/----->: onCompleted():main

打印合并Observable：

 //an Observable to be concatenated  合并两个或者多个
                Observable.concat(Observable.just("1", "2", "3"), Observable.just("4", "5", "6")).subscribe(new Observer<String>() {
                    @Override
                    public void onCompleted() {
                        LogUtils.d("onCompleted():" + Thread.currentThread().getName());
                    }

                    @Override
                    public void onError(Throwable e) {
                        LogUtils.d("onError():" + Thread.currentThread().getName());
                    }

                    @Override
                    public void onNext(String o) {
                        LogUtils.d("onNext():data:" + o + "  线程" + Thread.currentThread().getName());
                    }
                });
            }

打印结果：

12-25 03:42:49.311 27949-27949/com.rxandroid.test1 D/----->: onNext():data:1  线程main
12-25 03:42:49.311 27949-27949/com.rxandroid.test1 D/----->: onNext():data:2  线程main
12-25 03:42:49.311 27949-27949/com.rxandroid.test1 D/----->: onNext():data:3  线程main
12-25 03:42:49.311 27949-27949/com.rxandroid.test1 D/----->: onNext():data:4  线程main
12-25 03:42:49.311 27949-27949/com.rxandroid.test1 D/----->: onNext():data:5  线程main
12-25 03:42:49.311 27949-27949/com.rxandroid.test1 D/----->: onNext():data:6  线程main
12-25 03:42:49.311 27949-27949/com.rxandroid.test1 D/----->: onCompleted():main

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