1MVHJOT XJUI 6OJU5FTUJOH !J[VNJO QPUBUPUJQT 3Y +BWB "OESPJE .BTBZVLJ*;6.* map({ }) subscribeOn({ })

> Masayuki IZUMI a.k.a. @izumin5210 > Rekimoto Lab. at the Univ. of Tokyo > Strobo, Inc. / Wantedly, Inc. > Rubyist / Androider / {Java,Type}Scripter

3Y+BWBUFTUVUJMJUJFT 5FTU4VCTDSJCFS5 5FTU4DIFEVFS 5FTU4VCKFDU5

3Y+BWBUFTUVUJMJUJFT 5FTU4VCTDSJCFS5 DBOJOTQFDUSFDFJWFEFWFOUT DBOQFSGPSNBTTFSUJPOT FUD 5FTU4DIFEVFS DBONBOVBMMZBEWBODFUIFDMPDL 5FTU4VCKFDU5 DBODPOUSPMFNJTTJPOXJUIA5FTU4DIFEVMFSA

&YBNQMF TestSubscriber subscriber = new TestSubscriber<>(); TestScheduler scheduler = new TestScheduler(); PublishSubject subject = PublishSubject.create(); subject.buffer(3000, TimeUnit.MILLISECONDS, scheduler) .subscribe(subscriber); subject.onNext(new User("Alice")); subscriber.assertValueCount(0); scheduler.advanceTimeBy(3000, TimeUnit.MILLISECONDS); subscriber.assertValueCount(1);

&YBNQMF TestSubscriber subscriber = new TestSubscriber<>(); TestScheduler scheduler = new TestScheduler(); PublishSubject subject = PublishSubject.create(); subject.buffer(3000, TimeUnit.MILLISECONDS, scheduler) .subscribe(subscriber); subject.onNext(new User("Alice")); subscriber.assertValueCount(0); scheduler.advanceTimeBy(3000, TimeUnit.MILLISECONDS); subscriber.assertValueCount(1);

&YBNQMF TestSubscriber subscriber = new TestSubscriber<>(); TestScheduler scheduler = new TestScheduler(); PublishSubject subject = PublishSubject.create(); subject.buffer(3000, TimeUnit.MILLISECONDS, scheduler) .subscribe(subscriber); subject.onNext(new User("Alice")); subscriber.assertValueCount(0); scheduler.advanceTimeBy(3000, TimeUnit.MILLISECONDS); subscriber.assertValueCount(1);

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)PXUPXSJUFVOJUUFTU void onResume() { //snip. service.repos(user) .flatMap(Observable::from) .subscribeOn(Schedulers.io()) .observeOn(AndroidSchedulers.mainThread()) .subscribe(repo -> { /* do something in UI thread*/ }); }

)PXUPXSJUFVOJUUFTU void onResume() { //snip. service.repos(user) .flatMap(Observable::from) .subscribeOn(Schedulers.io()) .observeOn(AndroidSchedulers.mainThread()) .subscribe(repo -> { /* do something in UI thread*/ }); }

)PXUPXSJUFVOJUUFTU void onResume() { //snip. service.repos(user) .flatMap(Observable::from) .subscribeOn(Schedulers.io()) .observeOn(AndroidSchedulers.mainThread()) .subscribe(repo -> { /* do something in UI thread*/ }); } $BO` UVTF 5FTU4VCTDSJCFS5FTU4DIFEVMFS BGUFSTVCTDSJCF

$BOXFSFQMBDFTDIFEVMFST

3Y+BWB1MVHJOT 3Y"OESPJE1MVHJOT

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6TFJNNFEJBUFTDIFEVMFSJOTUFBEPG*0TDIFEVMFS RxJavaPlugins.getInstance() .registerSchedulersHook(new RxJavaSchedulersHook() { @Override public Scheduler getIOScheduler() { return Schedulers.immediate(); } }); /* do something... */ RxJavaPlugins.getInstance().reset();

6TFJNNFEJBUFTDIFEVMFSJOTUFBEPG*0TDIFEVMFS RxJavaPlugins.getInstance() .registerSchedulersHook(new RxJavaSchedulersHook() { @Override public Scheduler getIOScheduler() { return Schedulers.immediate(); } }); /* do something... */ RxJavaPlugins.getInstance().reset();

6TFJNNFEJBUFTDIFEVMFSJOTUFBEPG "OESPJENBJOUISFBETDIFEVMFS RxAndroidPlugins.getInstance() .registerSchedulersHook(new RxAndroidSchedulersHook() { @Override public Scheduler getMainThreadScheduler() { return Schedulers.immediate(); } }); /* do something... */ RxAndroidPlugins.getInstance().reset();

6TFJNNFEJBUFTDIFEVMFSJOTUFBEPG "OESPJENBJOUISFBETDIFEVMFS RxAndroidPlugins.getInstance() .registerSchedulersHook(new RxAndroidSchedulersHook() { @Override public Scheduler getMainThreadScheduler() { return Schedulers.immediate(); } }); /* do something... */ RxAndroidPlugins.getInstance().reset();

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&SSPSIBOEMFS RxJavaPlugins.getInstance() .registerErrorHandler(new RxJavaErrorHandler() { @Override public void handleError(Throwable e) { super.handleError(e); } @Override protected String render(Object item) throws InterruptedException { return super.render(item); } });

$PODMVTJPO 8IFOZPVXSJUFVOJUUFTUXJUI3Y+BWB 5FTU4VCTDSJCFS5 5FTU4DIFEVMFS 5FTU4VCKFDU5 BSFWFSZVTFGVM *GZPVUFTUUIFDPEFVTJOHPUIFSUISFBE 3Y+BWB1MVHJOTBOE3Y"OESPJE1MVHJOT DBOSFQMBDFXJUIBOZTDIFEVMFST

1MVHJOT XJUI 6OJU5FTUJOH !J[VNJO QPUBUPUJQT 3Y +BWB "OESPJE .BTBZVLJ*;6.* map({ }) subscribeOn({ })