Question

嘿，我想知道他们可以将两个动作链接到Xcode中的同一个按钮吗？我已经尝试但是仍然遇到这个错误：＆＃34;以NSException＆＃34;类型的未捕获异常终止。所以我猜我无法做到这一点？看看我想做的是什么按下按钮播放声音但同样的按钮也与在游戏中开始新一轮相关联。我该怎么做呢？我目前在我的.m文件中得到了这个。

#import "BullsEyeViewController.h"

@interface BullsEyeViewController ()

@end

@implementation BullsEyeViewController



{
int _currentValue;
int _targetValue;
int _score;
int _round;
}


- (IBAction)playSound:(id)sender {
SystemSoundID soundID;
NSString *buttonName=[sender currentTitle];
NSString *soundFile=[[NSBundle mainBundle]
                     pathForResource:buttonName ofType:@"mp3"];
AudioServicesCreateSystemSoundID((__bridge CFURLRef)
                                 [NSURL fileURLWithPath:soundFile], &
                                  soundID);
AudioServicesPlaySystemSound(soundID);


}

- (void)viewDidLoad
{
[super viewDidLoad];
[self startNewGame];
[self updateLabels];



UIImage *thumbImageNormal = [UIImage
                             imageNamed:@"SliderThumb-Normal"];
[self.slider setThumbImage:thumbImageNormal
                  forState:UIControlStateNormal];
UIImage *thumbImageHighlighted = [UIImage
                                  imageNamed:@"SliderThumb-Highlighted"];
[self.slider setThumbImage:thumbImageHighlighted
                  forState:UIControlStateHighlighted];
UIImage *trackLeftImage =
[[UIImage imageNamed:@"SliderTrackLeft"]
 resizableImageWithCapInsets:UIEdgeInsetsMake(0, 14, 0, 14)];

[self.slider setMinimumTrackImage:trackLeftImage
                         forState:UIControlStateNormal];

UIImage *trackRightImage =
[[UIImage imageNamed:@"SliderTrackRight"]
 resizableImageWithCapInsets:UIEdgeInsetsMake(0, 14, 0, 14)];

[self.slider setMaximumTrackImage:trackRightImage
                         forState:UIControlStateNormal];

 // Do any additional setup after loading the view, typically from a nib.
 }

- (void)startNewRound
{
_round += 1;
_targetValue = 1 + arc4random_uniform(100);
_currentValue = 50;
self.slider.value = _currentValue;
}

- (void)startNewGame
{
_score = 0;
_round = 0;
[self startNewRound];



}

- (void)updateLabels
{
self.targetLabel.text = [NSString stringWithFormat:@"%d",
                         _targetValue];
self.scoreLabel.text = [NSString stringWithFormat:@"%d",
                        _score];
self.roundLabel.text = [NSString stringWithFormat:@"%d",
                        _round];

}

- (BOOL)prefersStatusBarHidden
{
return YES;
}

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

- (IBAction)showAlert
{
int difference = abs(_targetValue - _currentValue);
int points = 100 - difference;

NSString *title;
if (difference == 0) {
    title = @"Perfect!";
    points += 100;
             } else if (difference < 5) {
                 title = @"You almost had it!";
                 if (difference == 1) {
                     points += 50;
                 }
             } else if (difference < 10 ) {
                 title = @"Pretty good!";
             } else {
                 title = @"Not even close...";
             }

            _score+=points;

NSString *message = [NSString stringWithFormat:@"You scored %d points", points];

UIAlertView *alertView = [[UIAlertView alloc]
initWithTitle: title
message:message
delegate:self
cancelButtonTitle:@"OK"
otherButtonTitles: nil];

[alertView show];

}


-(IBAction)sliderMoved:(UISlider *)slider
{
_currentValue = lroundf(slider.value);

}

- (void)alertView:(UIAlertView *)alertView
didDismissWithButtonIndex:(NSInteger)buttonIndex

{
[self startNewRound];
[self updateLabels];
}


-(IBAction)startOver
{
CATransition *transition = [CATransition animation];
transition.type = kCATransitionFade;
transition.duration = 1;
transition.timingFunction = [CAMediaTimingFunction
                             functionWithName:kCAMediaTimingFunctionEaseOut];


[self startNewGame];
[self updateLabels];

[self.view.layer addAnimation:transition forKey:nil];
}





@end

这是我的.h文件。

 //
 //  BullsEyeViewController.h
 //  BullsEye
 //
 //  Created by Sebastian Shelley on 28/04/2014.
 //  Copyright (c) 2014 Sebastian Shelley. All rights reserved.
 //

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

 @interface BullsEyeViewController : UIViewController
 <UIAlertViewDelegate>


 @property (nonatomic, weak) IBOutlet UISlider *slider;

 @property (nonatomic, weak) IBOutlet UILabel *targetLabel;

 @property (nonatomic, weak) IBOutlet UILabel *scoreLabel;

 @property (nonatomic, weak) IBOutlet UILabel *roundLabel;

 -(IBAction)showAlert;

 -(IBAction)sliderMoved:(UISlider *)slider;

 -(IBAction)startOver;

 - (IBAction)playSound:(id)sender;

@end

非常感谢一些帮助:)

Answer 1

将这样的动作添加到按钮

-(IBAction)myButtonPressed:(id)sender
{
 [self playSound:sender];
 [self startNewRound:Sender];
}

Answer 2

只使用一个动作，只需设置一个BOOL来检查是否需要播放声音。

示例代码为：

-(IBAiction)btnPressed:(id)sender
{
  if(playsound)
  {
    [self playSound];
    playsound = NO;
  }
  [self startOver];
}

然后，只要您想要再次播放saund，只需将playsound设置为YES，然后用户按下该按钮即可再次播放声音

Xcode按钮链接错误？

2 个答案: