RxJava/RxAndroid:ConnectableObservable & replay(int bufferSize)

RxJava/RxAndroid:ConnectableObservable & replay(int bufferSize)import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.util.Log;

import java.util.concurrent.TimeUnit;

import io.reactivex.Observable;
import io.reactivex.observables.ConnectableObservable;
import io.reactivex.observers.DisposableObserver;

public class MainActivity extends AppCompatActivity {
private String TAG = "输出";

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);

ConnectableObservable<Long> mConnectableObservable = Observable
.interval(1, TimeUnit.SECONDS)
.replay(3);

mConnectableObservable
.subscribe(new DisposableObserver<Long>() {
@Override
public void onNext(Long along) {
Log.d(TAG, "onNext1:" + along);
}

@Override
public void onComplete() {
Log.d(TAG, "onComplete1");
}

@Override
public void onError(Throwable e) {
Log.d(TAG, e.toString());
}
});

mConnectableObservable.connect();

mConnectableObservable
.delaySubscription(5, TimeUnit.SECONDS)
.subscribe(new DisposableObserver<Long>() {
@Override
public void onNext(Long along) {
Log.d(TAG, "onNext2:" + along);
}

@Override
public void onComplete() {
Log.d(TAG, "onComplete2");
}

@Override
public void onError(Throwable e) {
Log.d(TAG, e.toString());
}
});
}
}

output:
01-26 16:05:50.755 17958-17978/zhangphil.book D/输出: onNext1:0
01-26 16:05:51.755 17958-17978/zhangphil.book D/输出: onNext1:1
01-26 16:05:52.755 17958-17978/zhangphil.book D/输出: onNext1:2
01-26 16:05:53.755 17958-17978/zhangphil.book D/输出: onNext1:3
01-26 16:05:54.755 17958-17978/zhangphil.book D/输出: onNext1:4
01-26 16:05:54.757 17958-17979/zhangphil.book D/输出: onNext2:2
01-26 16:05:54.757 17958-17979/zhangphil.book D/输出: onNext2:3
01-26 16:05:54.757 17958-17979/zhangphil.book D/输出: onNext2:4
01-26 16:05:55.755 17958-17978/zhangphil.book D/输出: onNext1:5
01-26 16:05:55.755 17958-17978/zhangphil.book D/输出: onNext2:5
01-26 16:05:56.755 17958-17978/zhangphil.book D/输出: onNext1:6
01-26 16:05:56.755 17958-17978/zhangphil.book D/输出: onNext2:6
01-26 16:05:57.755 17958-17978/zhangphil.book D/输出: onNext1:7
01-26 16:05:57.755 17958-17978/zhangphil.book D/输出: onNext2:7
01-26 16:05:58.755 17958-17978/zhangphil.book D/输出: onNext1:8
01-26 16:05:58.755 17958-17978/zhangphil.book D/输出: onNext2:8
01-26 16:05:59.755 17958-17978/zhangphil.book D/输出: onNext1:9
01-26 16:05:59.755 17958-17978/zhangphil.book D/输出: onNext2:9
01-26 16:06:00.755 17958-17978/zhangphil.book D/输出: onNext1:10
01-26 16:06:00.755 17958-17978/zhangphil.book D/输出: onNext2:10
01-26 16:06:01.755 17958-17978/zhangphil.book D/输出: onNext1:11
01-26 16:06:01.755 17958-17978/zhangphil.book D/输出: onNext2:11
01-26 16:06:02.755 17958-17978/zhangphil.book D/输出: onNext1:12
01-26 16:06:02.755 17958-17978/zhangphil.book D/输出: onNext2:12

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