單例模式的應用
Rxjava中的單例應用
public class NeverObservable extends Observable { PRivate static class Holder { static final NeverObservable INSTANCE = new NeverObservable(); } /** * Returns a singleton instance of NeverObservble. * @return */ static NeverObservable instance() { return (NeverObservable) Holder.INSTANCE; } NeverObservable() { ... }}新聞熱點
疑難解答
