音效服务以及震动功能的实现

头文件：

 

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

@interface SoundViewController : UIViewController {
	IBOutlet UISwitch *swcallback;
    IBOutlet UIPickerView *soundPicker;
    NSArray *soundData;
	SystemSoundID soundFileObject;   
}

@property (nonatomic, retain) UISwitch *swcallback;
@property (nonatomic, retain) UIPickerView *soundPicker;
@property (nonatomic, retain) NSArray *soundData;
@property (readonly) SystemSoundID soundFileObject;

static void completionCallback (SystemSoundID mySSID, void *myself);
- (IBAction) playSystemSound;
- (IBAction) playAlertSound;
- (IBAction) vibrate;
- (IBAction) StopPlaySound;
- (void) GetPlaysound;

@end

 

实现文件： 

 

#import "SoundViewController.h"

@implementation SoundViewController

@synthesize swcallback, soundPicker, soundData, soundFileObject;

-(IBAction) StopPlaySound{    
    AudioServicesRemoveSystemSoundCompletion(self.soundFileObject);
}

-(void) GetPlaysound{
    [self StopPlaySound];
	NSInteger row = [soundPicker selectedRowInComponent:0];
    NSString *soundfilename;
    switch (row) {
        case 0:
			soundfilename = @"1.wav"; 
            break;
        case 1:
			soundfilename = @"2.wav"; 
            break;
        case 2:
			soundfilename = @"3.wav"; 
            break;            
        default:
            break;
    }
    NSString *Path = [[NSBundle mainBundle] bundlePath];
    NSURL *soundfileURL = [NSURL fileURLWithPath:[Path stringByAppendingPathComponent:soundfilename]]; 
    AudioServicesCreateSystemSoundID((CFURLRef)soundfileURL, &soundFileObject);
    if ([swcallback isOn]){
        AudioServicesAddSystemSoundCompletion(soundFileObject, NULL, NULL, completionCallback, (void *) self);    
    }    
}

static void completionCallback(SystemSoundID mySSID, void *myself){
    AudioServicesPlaySystemSound(mySSID);    
} 

- (IBAction) playSystemSound{     
	[self GetPlaysound];
	AudioServicesPlaySystemSound(self.soundFileObject);    
}

-(IBAction) playAlertSound{   
	[self GetPlaysound];
    AudioServicesPlayAlertSound(self.soundFileObject);    
}

- (IBAction) vibrate{
	AudioServicesPlaySystemSound(kSystemSoundID_Vibrate);
}

- (void)viewDidLoad{
    [super viewDidLoad];
    NSArray *array = [[NSArray alloc] initWithObjects:@"音效1", @"音效2", @"音效3", nil];
    self.soundData = array;
    [array release];
}

- (void)dealloc{
    [super dealloc];
    AudioServicesDisposeSystemSoundID(self.soundFileObject);
}

#pragma mark -
#pragma mark soundPicker Data Soure 

- (NSInteger)numberOfComponentsInPickerView:(UIPickerView *)pickerView{
    return 1;
}

- (NSInteger)pickerView:(UIPickerView *)pickerView numberOfRowsInComponent:(NSInteger)component{
    return [soundData count];
}

#pragma mark -
#pragma mark soundPicker Delegate 

- (NSString *)pickerView:(UIPickerView *)pickerView titleForRow:(NSInteger)row forComponent:(NSInteger)component{
    return [soundData objectAtIndex:row];
}

@end

 

效果图：