在swift协议中找不到Object-C方法

Question

我使用object-c在协议中使用swift调用一个方法，但是它无法工作。

@objc
class ClientContext: NSObject, DataContextFacade {
func checkfetchFeedsWithNoSession()->NormalFeedViewModel?{

    return NormalFeedViewModel()

   }
}

和

#import <UIKit/UIKit.h>
@class ClientContext;
@class DataContextFacade;
@interface BusinessFeedsCollectionViewController : UICollectionViewController

@end

控制器：

#import "Koalac_DS-Swift.h"
@implementation BusinessFeedsCollectionViewController{

CKCollectionViewDataSource *_dataSource;

CKComponentFlexibleSizeRangeProvider *_sizeRangeProvider;
}

- (void)viewDidLoad {
   [super viewDidLoad];
ClientContext *facade = [self getContextFacade];

[facade fetchFeedsWithNoSession];

}

实现：

SWIFT_PROTOCOL("_TtP9Koalac_DS17DataContextFacade_")
@protocol DataContextFacade
- (NormalFeedViewModel * __nullable)checkfetchFeedsWithNoSession;
- (void)fetchFeedsWithNoSession:(NSInteger)page perpage:(NSInteger)perpage longitude:(NSInteger)longitude latitude:(NSInteger)latitude;
- (void)fetchFeedsWithSession:(NSInteger)page perpage:(NSInteger)perpage;
- (void)fetchStoreCategory;
- (BOOL)uploadImageFile:(UIImage * __nonnull)image width:(NSInteger)width height:(NSInteger)height;
- (BOOL)isUserLogin;
@end


SWIFT_CLASS("_TtC9Koalac_DS13ClientContext")
@interface ClientContext : NSObject <DataContextFacade>
+ (ClientContext * __nonnull)shared;
- (void)fecthTest;
- (void)actionTest;
- (BOOL)isUserLogin;
- (void)userLogin:(NSString * __nonnull)userName password:(NSString * __nonnull)password deviceID:(NSString * __nonnull)deviceID;
- (NormalFeedViewModel * __nullable)checkfetchFeedsWithNoSession;
- (void)fetchFeedsWithNoSession:(NSInteger)page perpage:(NSInteger)perpage longitude:(NSInteger)longitude latitude:(NSInteger)latitude;
- (void)fetchFeedsWithSession:(NSInteger)page perpage:(NSInteger)perpage;
- (void)fetchStoreCategory;
- (BOOL)uploadImageFile:(UIImage * __nonnull)image width:(NSInteger)width height:(NSInteger)height;
- (void)isUserExist:(NSString * __nonnull)userName;
- (void)clearAllData:(void (^ __nonnull)(void))block;
- (void)deleteDataStore;
@end

我隐藏了一些细节。 [facade fetchFeedsWithNoSession];我打开“Koalac_DS-Swift.h”文件，找到：

{{1}}

但代码“[facade fetchFeedsWithNoSession]”不编译，如果我使用代码“[（ClientContext *）facade fetchFeedsWithNoSession]”，它通过编译，对象-c不能支持swift协议吗？有人知道为什么吗？