Implement objective-c UITableViewDelegate and Datasource in seperate class error-CodePudding

I am new to objective c. I am trying to implement a custom UITableViewDataSource and delegate.

I created an NSObject subclass and added the following code.

#import <Foundation/Foundation.h>

NS_ASSUME_NONNULL_BEGIN

@interface TableViewDataSourceDelegate : NSObject <UITableViewDelegate, UITableViewDataSource>

@end

NS_ASSUME_NONNULL_END

I get this error.

Cannot find interface declaration for 'UIViewController', superclass of 'TableViewDataSourceDelegate'

What am i missing?

CodePudding user response：

Try adding

#import <UIKit/UIKit.h>

UI* classes are part of UIKit. Not Foundation. You can just import UIKit and remove the Foundation, because the former depends on latter and imports it automatically.