解析问题预期的标识符或“（”

Question

我正在尝试创建一个噪音应用，但卡住了。我不是开发人员，我只是为了好玩而创建它！

问题是我在 ViewController.h 中的“@interface ViewController : NSObject :UIViewController”行上收到错误提示“Expected identifier or '('”。

ViewController.h 的代码是：

@interface ViewController : NSObject  :UIViewController {
}

-(IBAction)sound1;
-(IBAction)sound2;
-(IBAction)sound3;
-(IBAction)sound4;
-(IBAction)sound5;
-(IBAction)sound6;

@end

ViewController.m 的代码是：

#import "ViewController.h"

@implementation ViewController : NSObject;

-(IBAction)five {
    CFBundleRef mainBundle = CFBundleGetMainBundle();
    CFURLRef soundFileURLRef;
    soundFileURLRef = CFBundleCopyResourceURL(mainBundle, (CFStringRef) @"sound1", CFSTR("wav"), NULL);
    UInt32 soundID;
    AudioServicesCreateSystemSoundID(soundFileURLRef, &soundID);
    AudioServicesPlaySystemSound(soundID);
}

-(IBAction)cramp {
    CFBundleRef mainBundle = CFBundleGetMainBundle();
    CFURLRef soundFileURLRef;
    soundFileURLRef = CFBundleCopyResourceURL(mainBundle, (CFStringRef) @"sound2", CFSTR("wav"), NULL);
    UInt32 soundID;
    AudioServicesCreateSystemSoundID(soundFileURLRef, &soundID);
    AudioServicesPlaySystemSound(soundID);
}

-(IBAction)cycling {
    CFBundleRef mainBundle = CFBundleGetMainBundle();
    CFURLRef soundFileURLRef;
    soundFileURLRef = CFBundleCopyResourceURL(mainBundle, (CFStringRef) @"sound3", CFSTR("wav"), NULL);
    UInt32 soundID;
    AudioServicesCreateSystemSoundID(soundFileURLRef, &soundID);
    AudioServicesPlaySystemSound(soundID);
}

-(IBAction)iLoveBanking {
    CFBundleRef mainBundle = CFBundleGetMainBundle();
    CFURLRef soundFileURLRef;
    soundFileURLRef = CFBundleCopyResourceURL(mainBundle, (CFStringRef) @"sound4", CFSTR("wav"), NULL);
    UInt32 soundID;
    AudioServicesCreateSystemSoundID(soundFileURLRef, &soundID);
    AudioServicesPlaySystemSound(soundID);
}

-(IBAction)sound5 {
    CFBundleRef mainBundle = CFBundleGetMainBundle();
    CFURLRef soundFileURLRef;
    soundFileURLRef = CFBundleCopyResourceURL(mainBundle, (CFStringRef) @"sound5", CFSTR("wav"), NULL);
    UInt32 soundID;
    AudioServicesCreateSystemSoundID(soundFileURLRef, &soundID);
    AudioServicesPlaySystemSound(soundID);
}

-(IBAction)sound6 {
    CFBundleRef mainBundle = CFBundleGetMainBundle();
    CFURLRef soundFileURLRef;
    soundFileURLRef = CFBundleCopyResourceURL(mainBundle, (CFStringRef) @"sound6", CFSTR("wav"), NULL);
    UInt32 soundID;
    AudioServicesCreateSystemSoundID(soundFileURLRef, &soundID);
    AudioServicesPlaySystemSound(soundID);
}

@end

求助！！！！！！

Answer 1

这段代码急需重构……

1. 帮助找出导致问题的原因。
2. 让它更易于使用。

给你...

#import "ViewController.h"

@implementation ViewController

-(IBAction)five {
    [self playSoundWithName:@"sound1"];
}

-(IBAction)cramp {
    [self playSoundWithName:@"sound2"];
}

-(IBAction)cycling {
    [self playSoundWithName:@"sound3"];
}

-(IBAction)iLoveBanking {
    [self playSoundWithName:@"sound4"];
}

-(IBAction)sound5 {
    [self playSoundWithName:@"sound5"];
}

-(IBAction)sound6 {
    [self playSoundWithName:@"sound6"];
}

- (void)playSoundWithName:(NSString *)name
{
    CFBundleRef mainBundle = CFBundleGetMainBundle();
    CFURLRef soundFileURLRef;
    soundFileURLRef = CFBundleCopyResourceURL(mainBundle, (CFStringRef)name, CFSTR("wav"), NULL);
    UInt32 soundID;
    AudioServicesCreateSystemSoundID(soundFileURLRef, &soundID);
    AudioServicesPlaySystemSound(soundID);
}

@end

另外，你的标题应该是...

@interface ViewController : UIViewController

@end

如果您只是从按钮调用 IBAction 方法，那么您根本不需要在标题中声明它们。

Answer 2

@interface ViewController : NSObject :UIViewController

这是错误的，你不能有多个类。您只能从一个子类化。 由于您在 .m 文件中有一些 IBAction，我猜您将其用作视图控制器并在 .h 文件中删除 NSObject。 @interface ViewController : UIViewController

在 .m 中应该是

@implementation ViewController

Answer 3

你不能从两个类继承；只需使用UIViewController:

@interface ViewController : UIViewController 

Answer 4

这样写.h文件

   @interface ViewController :UIViewController

  -(IBAction)sound1;
-(IBAction)sound2;
 -(IBAction)sound3;
-(IBAction)sound4;
-(IBAction)sound5;
  -(IBAction)sound6;
  @end

.m 文件将 NSObject 替换为 UIViewController

    #import "ViewController.h"
      @implementation ViewController : UIViewController;