Question

尝试为用户添加设施，使用ui开关关闭应用中的所有声音。（用户偏好）

- (IBAction)toggleaudio:(id)sender {

    if (switchtoggle.on)
    {
        [self.????? play];
    }
    else {
        [self.?????? stop];
    }
}

我不确定在我的代码中问题所在的位置。我试过的只是给了我错误。如果有更好的解决方案，我愿意接受建议。

我的音频代码：

CFBundleRef mainBundle = CFBundleGetMainBundle();
CFURLRef soundFileURLRef;
soundFileURLRef = CFBundleCopyResourceURL(mainBundle, (CFStringRef) @"btn2", CFSTR 
                                      ("mp3"), NULL);
UInt32 soundID;
AudioServicesCreateSystemSoundID (soundFileURLRef, &soundID);
AudioServicesPlaySystemSound (soundID);

Answer 1

做

    - (IBAction)toggleaudio:(id)sender {

    if (switchtoggle.on)
    {
        CFBundleRef mainBundle = CFBundleGetMainBundle();
CFURLRef soundFileURLRef;
soundFileURLRef = CFBundleCopyResourceURL(mainBundle, (CFStringRef) @"btn2", CFSTR 
                                      ("mp3"), NULL);
UInt32 soundID;
AudioServicesCreateSystemSoundID (soundFileURLRef, &soundID);
AudioServicesPlaySystemSound (soundID);
    }
    else {
        //nothings playing now
    }

    }

Answer 2

使用NS用户默认值修复此问题

Answer 3

尝试此操作如果开关状态关闭时，如果开关播放状态不播放声音则按下按钮播放声音.. :) .H

@property (strong, nonatomic) IBOutlet UIButton *Btn;
 @property (strong, nonatomic) IBOutlet UISwitch *soundSwitch;
- (IBAction)saveSwitchState:(id)sender;
- (IBAction)ButtonPress:(id)sender

的.m

- (IBAction)saveSwitchState:(id)sender
{

    NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];

    if ([self.soundSwitch isOn])
    {
        [defaults setBool:YES forKey:@"SwitchState"];
    [defaults synchronize];
        NSLog(@"Data Saved");
    }
    else
    {
        [defaults setBool:NO forKey:@"SwitchState"];
        [defaults synchronize];
        NSLog(@"Data Saved");


    }
}
- (void)viewDidLoad//Load Default Switch State
{
    [super viewDidLoad];
 NSString *path = [[NSBundle mainBundle]
     pathForResource:@"ding" ofType:@"mp3"];
     audioPlayer1 = [[AVAudioPlayer alloc]initWithContentsOfURL:
     [NSURL fileURLWithPath:path] error:NULL];

 NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
     self.soundSwitch.on = [defaults boolForKey:@"SwitchState"];
}
- (IBAction)ButtonPress:(id)sender
 if(self.soundSwitch.on==YES)
    {
     [audioPlayer1 play];
    }
    else
    {[audioPlayer1 stop];

    }
}

使用ui switch xcode关闭app中的声音

3 个答案: