iphone - 不完整的@implementation Startscreen

Question

我在此处代码中的实现 Topscore 行收到警告:

#import <Twitter/Twitter.h>
#import <GameKit/GameKit.h>
#import <AVFoundation/AVAudioPlayer.h>
#import <AudioToolbox/AudioServices.h>

@interface Topscore ()

@property (strong, nonatomic) NSString *imageString;
@property (strong, nonatomic) NSString *urlString;
- (void)clearLabels;
@end

@implementation Topscore // Warning on this line

@synthesize count, date, urlString = _urlString, imageString = _imageString, delegate, Topscore, currentLeaderBoard, earnedAchievementCache;

Incomplete implementation

我的 startscreen.h 头文件如下所示:

@interface Startscreen : UIViewController <AVAudioPlayerDelegate> {

    AVAudioPlayer *audioPlayer;

}
- (IBAction)tweetTapped:(id)sender;
- (IBAction) startgame;

- (IBAction) showLeader;

- (IBAction) subScore;
- (IBAction) showLeader;
- (IBAction) addScore; 
- (IBAction) settings; 

-(IBAction)playSound:(id)sender;
-(IBAction)pause:(id)sender;
-(IBAction)stopmusic;



@end

有人知道怎么回事吗？

Answer 1

这只是意味着您还没有实现或定义您在头文件中编写的所有方法。如果您在实现文件中定义了每个 IBAction，这个错误就会消失。例如:

- (IBAction)tweetTapped:(id)sender {
//Do whatever you want it do do here
}

总的来说，错误警告只是意味着你需要定义一切。因为这只是一个警告，所以您的应用仍会构建并运行。