[英]From RxJava 1 to RxJava 2
我正在嘗試將此RxJava1代碼轉換為RxJava2
public static Observable<Path> listFolder(Path dir, String glob) {
return Observable.<Path>create(subscriber -> {
try {
DirectoryStream<Path> stream =
Files.newDirectoryStream(dir, glob);
subscriber.add(Subscriptions.create(() -> {
try {
stream.close();
} catch (IOException e) {
e.printStackTrace();
}
}));
Observable.<Path>from(stream).subscribe(subscriber);
} catch (DirectoryIteratorException ex) {
subscriber.onError(ex);
} catch (IOException ioe) {
subscriber.onError(ioe);
}
});
}
問題是在Rxjava2中我沒有訂閱者添加新的訂閱。
享受RxJava 2個簡潔( Flowable
的背壓支持類現在):
public static Flowable<Path> listFolder(Path dir, String glob) {
return Flowable.using(
() -> Files.newDirectoryStream(dir, glob),
stream -> Flowable.fromIterable(stream),
stream -> stream.close());
}
如果您不想要背壓,請將Flowable
替換為Observable
。
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