无法在 Swift 中实例化 Obj C 类，尽管桥接标头有效

Question

我正在努力将单个目标 c 类拉入 swift。我的桥接标头工作得很好 - Xcode 甚至在我键入时建议 obj c 类的名称。我什至设法从我的 swift 文件中引用了同一个头文件中的委托协议：

浏览器视图控制器.swift

import UIKit
class BrowserViewController: UIViewController, BrowserTabViewDelegate {
    @IBOutlet weak var browserView: UIView!
    @IBOutlet weak var webViewContainer: UIView!

    override func viewDidLoad() {
        super.viewDidLoad()
        let tabview: BrowserTabView = BrowserTabView();
        // Do any additional setup after loading the view.
    }
    override func didReceiveMemoryWarning() {
        super.didReceiveMemoryWarning()
        // Dispose of any resources that can be recreated.
    }
}

错误的上限：使用未解析的标识符"浏览器选项卡视图"。请注意，BrowserTabViewDelegate在被引用时没有任何问题。它来自与 BrowserTabView 相同的 obj c 标头。它建议类名，但我不能调用 init。

BrowserTabView.h

#import <UIKit/UIKit.h>
@class BrowserTabView;
@protocol BrowserTabViewDelegate <NSObject>
@optional
-(void)BrowserTabView:(BrowserTabView *)browserTabView didSelectTabAtIndex:(NSUInteger)index;
-(void)BrowserTabView:(BrowserTabView *)browserTabView willRemoveTabAtIndex:(NSUInteger)index;
-(void)BrowserTabView:(BrowserTabView *)browserTabView didRemoveTabAtIndex:(NSUInteger)index;
-(void)BrowserTabView:(BrowserTabView *)browserTabView exchangeTabAtIndex:(NSUInteger)index withTabAtIndex:(NSUInteger)toIndex;
-(BOOL)BrowserTabView:(BrowserTabView *)tabView shouldChangeTitle: (NSString*)title;
@end
@interface BrowserTabView : UIView <UIGestureRecognizerDelegate, UITextFieldDelegate>
@property (nonatomic, strong) UIImage *backgroundImage;
@property (nonatomic, readonly) NSUInteger numberOfTabs;
@property (nonatomic, readonly) NSInteger selectedTabIndex;
@property (nonatomic, readonly) NSMutableArray *reuseQueue;
@property (nonatomic, weak) id<BrowserTabViewDelegate> delegate;
-(id)initwithTabTitles:(NSArray *)titles andDelegate:(id)del;
-(void)addTabWithTitle:(NSString *)title;
-(void)setTabTitlesWithArray:(NSArray *)titles;
-(void)setSelectedTabIndex:(NSInteger)selectedTabIndex animated:(BOOL)animation;
-(void)removeTabAtIndex:(NSInteger)index animated:(BOOL)animated;
- (void)handleLongPress:(UILongPressGestureRecognizer *)gr;
- (void)handlePanGesture:(UIPanGestureRecognizer *)sender;

@end

这是我第一次在这样的问题上被困这么久......我见过的大多数现有问题都与糟糕的桥接标头有关 - 但我很确定我的是好的。让我知道我是否可以清理我的问题，并提前感谢任何帮助。

WI Vision-Bridging-Header.h

//
//  Use this file to import your target's public headers that you would like to expose to Swift.
#import "BrowserTabView.h"
#import "BrowserTab.h"

Answer 1

这么好的问题。这看起来像一个错误，我们可以将其记录到 Swift 的社区。更改以下方式的委托将帮助您：

@protocol BrowserTabViewDelegate <NSObject>
@optional
-(void)browserTabView:(BrowserTabView *)browserTabView didSelectTabAtIndex:(NSUInteger)index;
-(void)browserTabView:(BrowserTabView *)browserTabView willRemoveTabAtIndex:(NSUInteger)index;
-(void)browserTabView:(BrowserTabView *)browserTabView didRemoveTabAtIndex:(NSUInteger)index;
-(void)browserTabView:(BrowserTabView *)browserTabView exchangeTabAtIndex:(NSUInteger)index withTabAtIndex:(NSUInteger)toIndex;
-(BOOL)browserTabView:(BrowserTabView *)tabView shouldChangeTitle: (NSString*)title;
@end

方法名称中应该使用browserTabView而不是BrowserTabView。