聲明屬性

Question

我想聲明屬性

#import <UIKit/UIKit.h> 
#import <MediaPlayer/MediaPlayer.h> 

@interface ViewController : UIViewController 
{ 
@property (nonatomic, strong) MPMoviePlayerController*player; 
} 


@end 

我收到一個紅色的警告標誌，當我點擊它，它會讀取;

而不類型參數列表只允許在函數定義

Answer 1

性質外括號

#import <UIKit/UIKit.h> 
#import <MediaPlayer/MediaPlayer.h> 

@interface ViewController : UIViewController 
{ 
    // here is for ivars only 
    id _something; 
} 
// properties and methods 
@property (nonatomic, strong) MPMoviePlayerController*player; 

@end