chore: observable 관련 코드 수정

Author: jane1choi

BoxOffice/Presentation/BoxOfficeScene/BoxOfficeViewController.swift

@@ -11,6 +11,7 @@ final class BoxOfficeViewController: UIViewController {
 
     private let viewModel: BoxOfficeViewModel
     private var refreshAction: Observable<Void> = Observable(())
+    private var viewDidLoaded: Observable<Void> = Observable(())
     private var boxOfficeList: [BoxOfficeEntity] = []
 
     init(viewModel: BoxOfficeViewModel) {
@@ -106,10 +107,12 @@ final class BoxOfficeViewController: UIViewController {
 
     private func bindViewModel() {
         let input = BoxOfficeViewModel.Input(
-            viewDidLoad: Observable(()),
+            viewDidLoad: viewDidLoaded,
             refreshAction: refreshAction)
         let output = viewModel.transform(input: input)
 
+        viewDidLoaded.value = ()
+        
         output.boxOfficeData.subscribe { [weak self] result in
             self?.boxOfficeList = result
             self?.collectionView.reloadData()

BoxOffice/Util/Observable.swift

@@ -22,7 +22,6 @@ final class Observable<T> {
     }
 
     func subscribe(_ closure: @escaping (T) -> Void) {
-        closure(value)
         self.listener = closure
     }
 }