RxJava

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package com.example.demorxjava;

import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;

import java.util.concurrent.TimeUnit;

import rx.Observable;
import rx.Scheduler;
import rx.Subscriber;
import rx.android.schedulers.AndroidSchedulers;
import rx.functions.Action1;
import rx.functions.Func1;
import rx.functions.Func2;
import rx.schedulers.Schedulers;

public class MainActivity extends AppCompatActivity {

private Observable<Integer> mObservable;private Subscriber<String> mSubScriber;@Overrideprotected void onCreate(Bundle savedInstanceState) {    super.onCreate(savedInstanceState);    setContentView(R.layout.activity_main);    //二。观察者 接收数据事件 一定订阅    /*接收完成事件*//*处理出错*//*接收更新数据*/    mSubScriber = new Subscriber<String>() {        /*接收完成事件*/        @Override        public void onCompleted() {            ToastUtil.showShort(getApplicationContext(), "接收完成事件onCompleted");        }        /*处理出错*/        @Override        public void onError(Throwable e) {            ToastUtil.showShort(getApplicationContext(), "接收异常处理e" + e.getMessage());        }        /*接收更新数据*/        @Override        public void onNext(String data) {

// printThread(“Subscriber-onNext”);
System.out.println(“-onNext–” + data);

        }    };}public void start(View view) {    //subscribeOn()设置可观察对象的调度器    //observeOn设置一个安卓专用的更新界面的主线程调度器    //调度器用来给call分配线程    //一。可观察对象产生数据    Integer[] numbers = {1, 2, 3, 4, 5};    mObservable = Observable.from(numbers);    mObservable.filter(integer -> integer % 2 == 0)            .scan((sum,item)->sum+item)            .map(value -> value + "")            .delay(4, TimeUnit.SECONDS)//延时发送元素 让onNext()等待4秒            .delaySubscription(2,TimeUnit.SECONDS)//延时subscribe等待4秒            .subscribeOn(Schedulers.io())//Fun0 Fun1 Fun2..            .observeOn(AndroidSchedulers.mainThread())            .subscribe(( s) ->{                    System.out.println("-onNext--" + s);                }           );//-->数据改变}private void printThread(String method) {    System.out.println("method:" + method + " curr Thread:" + Thread.currentThread().getName());}

}

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