Rxjava 简明教程
RxJava - MayBe Observable
MayBe 类表示延迟响应。MayBe 可观察对象可以发出一个成功的单个值或不发出值。
Class Declaration
以下为 io.reactivex.Single<T> 类的声明：
public abstract class Maybe<T>
extends Object
implements MaybeSource<T>MayBe Example
在任意编辑器中使用任何您选择的语言（如 C:\>RxJava) 创建以下 Java 程序。
ObservableTester.java
import java.util.concurrent.TimeUnit;
import io.reactivex.Maybe;
import io.reactivex.disposables.Disposable;
import io.reactivex.observers.DisposableMaybeObserver;
import io.reactivex.schedulers.Schedulers;
public class ObservableTester {
public static void main(String[] args) throws InterruptedException {
//Create an observer
Disposable disposable = Maybe.just("Hello World")
.delay(2, TimeUnit.SECONDS, Schedulers.io())
.subscribeWith(new DisposableMaybeObserver<String>() {
@Override
public void onError(Throwable e) {
e.printStackTrace();
}
@Override
public void onSuccess(String value) {
System.out.println(value);
}
@Override
public void onComplete() {
System.out.println("Done!");
}
});
Thread.sleep(3000);
//start observing
disposable.dispose();
}
}