Xcode 的问题！预期的 ”;” 方法原型之后

Trouble with Xcode! Expected ";" after method prototype

提问by Jon Mihail

I'm just starting out with Xcode and I am making a simple soundboard app with some of my friends.

我刚刚开始使用 Xcode，我正在和我的一些朋友一起制作一个简单的音板应用程序。

I am having issues with the first line. I have written the code and I am pretty sure it is correct, but I cannot understand why this is here! I am getting an "Expected ';' after method prototype" and have tried everything to fix it, just inserting the semicolon gives me 3 more errors. here is my code

我的第一行有问题。我已经编写了代码，我很确定它是正确的，但我不明白为什么会在这里！我得到一个“预期的';' 在方法原型之后”并尝试了所有方法来修复它，只是插入分号会给我另外 3 个错误。这是我的代码

'#import "ViewController.h"'

@interface ViewController ()

// Sound for Ben
- (IBAction)playsound1 { // this is where the error is. It is not on any other line

NSString *path = [[NSBundle mainBundle] pathForResource:@"Ben" ofType:@"mp3"];
AVAudioPlayer* theAudio=[[AVAudioPlayer alloc] initWithContentsOfURL:[NSURL fileURLWithPath:path] error:NULL];

theAudio.delegate=self;
[theAudio play];
}
// Sound for Bruno
- (IBAction)playsound2 {

NSString *path = [[NSBundle mainBundle] pathForResource:@"Bruno" ofType:@"mp3"];
AVAudioPlayer* theAudio=[[AVAudioPlayer alloc] initWithContentsOfURL:[NSURL    fileURLWithPath:path] error:NULL];

theAudio.delegate=self;
[theAudio play];
}
// Sound for Homer
- (IBAction)playsound3 {

NSString *path = [[NSBundle mainBundle] pathForResource:@"Homer" ofType:@"mp3"];
AVAudioPlayer* theAudio=[[AVAudioPlayer alloc] initWithContentsOfURL:[NSURL fileURLWithPath:path] error:NULL];

theAudio.delegate=self;
[theAudio play];
}
// Sound for Jon
- (IBAction)playsound4 {

NSString *path = [[NSBundle mainBundle] pathForResource:@"Jon" ofType:@"mp3"];
AVAudioPlayer* theAudio=[[AVAudioPlayer alloc] initWithContentsOfURL:[NSURL fileURLWithPath:path] error:NULL];

theAudio.delegate=self;
[theAudio play];
}
// Sound for Mark
- (IBAction)playsound5 {

NSString *path = [[NSBundle mainBundle] pathForResource:@"Mark" ofType:@"mp3"];
AVAudioPlayer* theAudio=[[AVAudioPlayer alloc] initWithContentsOfURL:[NSURL fileURLWithPath:path] error:NULL];

theAudio.delegate=self;
[theAudio play];
}
// Sound for Mikey
- (IBAction)playsound6 {

NSString *path = [[NSBundle mainBundle] pathForResource:@"Mikey" ofType:@"mp3"];
AVAudioPlayer* theAudio=[[AVAudioPlayer alloc] initWithContentsOfURL:[NSURL     fileURLWithPath:path] error:NULL];

theAudio.delegate=self;
[theAudio play];
}
// Sound for Omar
- (IBAction)playsound7 {

NSString *path = [[NSBundle mainBundle] pathForResource:@"Omar" ofType:@"mp3"];
AVAudioPlayer* theAudio=[[AVAudioPlayer alloc] initWithContentsOfURL:[NSURL fileURLWithPath:path] error:NULL];

theAudio.delegate=self;
[theAudio play];
}
// Sound for Tom
- (IBAction)playsound8 {

NSString *path = [[NSBundle mainBundle] pathForResource:@"Tom" ofType:@"mp3"];
AVAudioPlayer* theAudio=[[AVAudioPlayer alloc] initWithContentsOfURL:[NSURL fileURLWithPath:path] error:NULL];

theAudio.delegate=self;
[theAudio play];
}
// Sound for Victor
- (IBAction)playsound9 {

NSString *path = [[NSBundle mainBundle] pathForResource:@"Victor" ofType:@"mp3"];
AVAudioPlayer* theAudio=[[AVAudioPlayer alloc] initWithContentsOfURL:[NSURL fileURLWithPath:path] error:NULL];

theAudio.delegate=self;
[theAudio play];
}
@end

@implementation ViewController

- (void)viewDidLoad
{
[super viewDidLoad];
// Do any additional setup after loading the view, typically from a nib.
}

- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}

- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
return (interfaceOrientation != UIInterfaceOrientationPortraitUpsideDown);
}

@end

---

---

Hey all errors are gone now but when it is run, when i click on a button, it closes and takes me here

嘿，现在所有错误都消失了，但是当它运行时，当我单击一个按钮时，它会关闭并将我带到这里

#import <UIKit/UIKit.h>

#import "AppDelegate.h"

 int main(int argc, char *argv[])
  {
      @autoreleasepool {
        return UIApplicationMain(argc, argv, nil, NSStringFromClass([AppDelegate class]));
    }
}

it highlights the "return" line in "main.m" in green with a SIGABRT error?

它以绿色突出显示“main.m”中的“return”行，并带有 SIGABRT 错误？

回答by Caleb

I am having issues with the first line

我的第一行有问题

Of course you are -- you've got complete functions in your interface section. The interface should include method prototypes only. Method definitions go in the implementation section. You have:

当然，您是——您的界面部分拥有完整的功能。接口应该只包含方法原型。方法定义在实现部分。你有：

@interface ViewController ()

- (IBAction)playsound1 { // this is where the error is. It is not on any other line

NSString *path = [[NSBundle mainBundle] pathForResource:@"Ben" ofType:@"mp3"];
AVAudioPlayer* theAudio=[[AVAudioPlayer alloc] initWithContentsOfURL:[NSURL fileURLWithPath:path] error:NULL];

theAudio.delegate=self;
[theAudio play];
}

That should instead be:

那应该是：

@interface ViewController ()

- (IBAction)playsound1;

// ...
@end

Followed by:

其次是：

@implementation ViewController

- (IBAction)playsound1 { // this is where the error is. It is not on any other line
    NSString *path = [[NSBundle mainBundle] pathForResource:@"Ben" ofType:@"mp3"];
    AVAudioPlayer* theAudio=[[AVAudioPlayer alloc] initWithContentsOfURL:[NSURL fileURLWithPath:path] error:NULL];

    theAudio.delegate=self;
    [theAudio play];
}

// ...
@end

(I added some indentation for easier reading.)

（为了便于阅读，我添加了一些缩进。）

回答by Prasad G

You shouldn't write the definition of method in @interface ... @end. You can declare only methods. Write your method's definition in @implementation ....@endand declare your methods in @interfaece...@end.

你不应该在@interface ... @end. 您只能声明方法。将您的方法定义写入@implementation ....@end并在@interfaece...@end.

I think it will be helpful to you.

我想它会对你有所帮助。