compile 'io.reactivex.rxjava2:rxjava:2.0.4'
compile 'io.reactivex.rxjava2:rxandroid:2.0.1'

package com.supermap.rxjavademo;

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

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 {
    private TextView contentTxt;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        contentTxt = findViewById(R.id.text);
        findViewById(R.id.clickBtn).setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                dealEvent();
            }
        });
    }

    /*
    *  18/1/22  -  11:10
    *  处理事件
    */
    private void dealEvent() {
        Observable
                .create(new ObservableOnSubscribe<Object>() {
                    @Override
                    public void subscribe(final ObservableEmitter<Object> observableEmitter) throws Exception {
                        new Thread(new Runnable() {
                            @Override
                            public void run() {
                                String message = "哈哈哈哈";
                                for (int i = 0; i < 10; i++) {
                                    try {
                                        Thread.sleep(500);
                                    } catch (InterruptedException e) {
                                        e.printStackTrace();
                                    }
                                    message += i;
                                }
                                observableEmitter.onNext(message);
                                observableEmitter.onComplete();
                            }
                        }).start();
                    }
                })
                .subscribeOn(Schedulers.io())
                .observeOn(AndroidSchedulers.mainThread())
                .subscribe(new Observer<Object>() {

                    @Override
                    public void onSubscribe(Disposable d) {

                    }

                    @Override
                    public void onNext(Object o) {
                        contentTxt.setText(o.toString());
                    }

                    @Override
                    public void onError(Throwable e) {

                    }

                    @Override
                    public void onComplete() {

                    }
                });
    }
}