Observer subscribing to ConnectableObservable didn't get notified after connect method











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Console print nothing after excuting these code



ConnectableObservable o = ConnectableObservable.create(emitter -> {
emitter.onNext("first");
Thread.sleep(6000);
emitter.onNext("second");
}).publish();
o.connect();
o.subscribe(
msg -> Log.i(TAG, "" + msg),
throwable -> Log.e(TAG, "", (Throwable) throwable)
);


But the doc said




You can also use the connect method to instruct an Observable to begin emitting items (or, to begin generating items that would be emitted) even before any Subscriber has subscribed to it.











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  • You have a synchronous source that sleeps when connect gets called so you will miss both of its items when using publish. Consider using replay().
    – akarnokd
    Nov 8 at 9:27










  • you' re right, thank you
    – Jason Wang
    Nov 8 at 13:32















up vote
0
down vote

favorite












Console print nothing after excuting these code



ConnectableObservable o = ConnectableObservable.create(emitter -> {
emitter.onNext("first");
Thread.sleep(6000);
emitter.onNext("second");
}).publish();
o.connect();
o.subscribe(
msg -> Log.i(TAG, "" + msg),
throwable -> Log.e(TAG, "", (Throwable) throwable)
);


But the doc said




You can also use the connect method to instruct an Observable to begin emitting items (or, to begin generating items that would be emitted) even before any Subscriber has subscribed to it.











share|improve this question






















  • You have a synchronous source that sleeps when connect gets called so you will miss both of its items when using publish. Consider using replay().
    – akarnokd
    Nov 8 at 9:27










  • you' re right, thank you
    – Jason Wang
    Nov 8 at 13:32













up vote
0
down vote

favorite









up vote
0
down vote

favorite











Console print nothing after excuting these code



ConnectableObservable o = ConnectableObservable.create(emitter -> {
emitter.onNext("first");
Thread.sleep(6000);
emitter.onNext("second");
}).publish();
o.connect();
o.subscribe(
msg -> Log.i(TAG, "" + msg),
throwable -> Log.e(TAG, "", (Throwable) throwable)
);


But the doc said




You can also use the connect method to instruct an Observable to begin emitting items (or, to begin generating items that would be emitted) even before any Subscriber has subscribed to it.











share|improve this question













Console print nothing after excuting these code



ConnectableObservable o = ConnectableObservable.create(emitter -> {
emitter.onNext("first");
Thread.sleep(6000);
emitter.onNext("second");
}).publish();
o.connect();
o.subscribe(
msg -> Log.i(TAG, "" + msg),
throwable -> Log.e(TAG, "", (Throwable) throwable)
);


But the doc said




You can also use the connect method to instruct an Observable to begin emitting items (or, to begin generating items that would be emitted) even before any Subscriber has subscribed to it.








rx-java rx-java2






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asked Nov 8 at 9:21









Jason Wang

21




21












  • You have a synchronous source that sleeps when connect gets called so you will miss both of its items when using publish. Consider using replay().
    – akarnokd
    Nov 8 at 9:27










  • you' re right, thank you
    – Jason Wang
    Nov 8 at 13:32


















  • You have a synchronous source that sleeps when connect gets called so you will miss both of its items when using publish. Consider using replay().
    – akarnokd
    Nov 8 at 9:27










  • you' re right, thank you
    – Jason Wang
    Nov 8 at 13:32
















You have a synchronous source that sleeps when connect gets called so you will miss both of its items when using publish. Consider using replay().
– akarnokd
Nov 8 at 9:27




You have a synchronous source that sleeps when connect gets called so you will miss both of its items when using publish. Consider using replay().
– akarnokd
Nov 8 at 9:27












you' re right, thank you
– Jason Wang
Nov 8 at 13:32




you' re right, thank you
– Jason Wang
Nov 8 at 13:32

















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