IOS RxSwift中UISearch栏文本与视图模型属性的双向绑定

import RxSwift
import RxCocoa

class ViewModel {
    let searchText = BehaviorRelay<String>(value: "")
}

import RxSwift
import RxCocoa

class ViewController: UIViewController {
    let disposeBag = DisposeBag()
    let viewModel = ViewModel()
    
    @IBOutlet weak var searchBar: UISearchBar!
    
    override func viewDidLoad() {
        super.viewDidLoad()
        
        searchBar.rx.text.orEmpty
            .bind(to: viewModel.searchText)
            .disposed(by: disposeBag)
    }
}

import RxSwift
import RxCocoa

class ViewModel {
    let searchText = BehaviorRelay<String>(value: "")
    
    init() {
        searchText.asObservable()
            .subscribe(onNext: { text in
                // 执行搜索操作
                self.search(text)
            })
            .disposed(by: disposeBag)
    }
    
    func search(_ text: String) {
        // 执行搜索操作的具体实现
    }
}