具有最后状态的RxJava Observable

Question

我从RxJava开始,我想创建一个可以保存最后状态的observable ...

在RxSwift中,这将是Variable(https://github.com/ReactiveX/RxSwift/blob/master/Documentation/GettingStarted.md#variables),但我无法在RxJava中找到等效的...

我找到了一个解决方案,但它是很多锅炉板代码

private boolean isGettingCompanies = false;

public boolean isGettingCompanies() {
    return isGettingCompanies;
}

private void setIsGettingCompanies(boolean isGettingCompanies) {
    this.isGettingCompanies = isGettingCompanies;
    isGettingCompaniesPublishSubject.onNext(isGettingCompanies);
}

private final PublishSubject<Boolean> isGettingCompaniesPublishSubject = PublishSubject.create();

public Observable<Boolean> isGettingCompaniesPublishSubject() {
    return isGettingCompaniesPublishSubject.asObservable();
}

RxSwift的等价物就是这个

private(set) var isGettingCompanies: Variable = Variable(false)

你能帮我吗？谢谢

Answer 1

BehaviourSubject有一个value()方法，它返回它的当前值

final BehaviorSubject<Boolean> subject = BehaviorSubject.<Boolean>create(false);
final Boolean value = subject.getValue();