Rxjava基本用法

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public class MainActivity extends AppCompatActivity {    Observable<String> mObservable;    Subscriber<String> mSubscriber;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        mObservable= Observable.create(new Observable.OnSubscribe<String>() {            @Override            public void call(Subscriber<? super String> subscriber) {                subscriber.onNext("需要被消费的事件（注册了消费关系的Observable）"); //-->onNext(String s)                int a = 1/0; //-->onError(Throwable e) 如果此方法执行，则onCompleted（）不会被执行                subscriber.onCompleted(); //结束 -->onCompleted()            }        });        mSubscriber = new Subscriber<String>() {            @Override            public void onCompleted() {                toast("Obsever onCompleted");            }            @Override            public void onError(Throwable e) {                toast("onError:"+e.getMessage());            }            @Override            public void onNext(String s) {                toast("onNext收到的信息:"+s);            }        };    }    public void click(View v){        //建立订阅关系        mObservable.subscribe(mSubscriber);    }    public void toast(String s){        Toast.makeText(getApplicationContext(),s,Toast.LENGTH_SHORT).show();    }}
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