RXAndroid2例子

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package com.itant.rxtest;import android.os.Bundle;import android.support.v7.app.AppCompatActivity;import android.util.Log;import android.widget.Toast;import io.reactivex.Observable;import io.reactivex.ObservableEmitter;import io.reactivex.ObservableOnSubscribe;import io.reactivex.Observer;import io.reactivex.android.schedulers.AndroidSchedulers;import io.reactivex.disposables.Disposable;import io.reactivex.schedulers.Schedulers;public class MainActivity extends AppCompatActivity {    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        Observable<String> observable=Observable.create(new ObservableOnSubscribe<String>() {            @Override            //将事件发射出去,持有观察者的对象            public void subscribe(ObservableEmitter<String> e) throws Exception {                try {                    Thread.sleep(10000);                } catch (Exception ee) {                }                e.onNext("第一次调用");                try {                    Thread.sleep(10000);                } catch (Exception ee) {                }                e.onNext("第二次调用");                try {                    Thread.sleep(10000);                } catch (Exception ee) {                }                e.onNext("第三次调用");                e.onComplete();            }        });        observable.observeOn(AndroidSchedulers.mainThread())                .subscribeOn(Schedulers.io())                .subscribe(new Observer<String>() {                    @Override                    public void onSubscribe(Disposable d) {                    }                    @Override                    public void onNext(String value) {                        Toast.makeText(MainActivity.this, value, Toast.LENGTH_SHORT).show();                    }                    @Override                    public void onError(Throwable e) {                    }                    @Override                    public void onComplete() {                    }                });    }}
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