在iOS中播放簡單音效的最佳方式

Question

我在iOS中發現了大量有關播放聲音的衝突數據。我想知道是否有人可以指出我每次用戶觸摸屏幕時只發出簡單的「ping」聲音的最佳方式。

謝謝！

Answer 1

這是打一個簡單的聲音在iOS中（不超過30秒）的最佳方式：

//Retrieve audio file 
NSString *path = [[NSBundle mainBundle] pathForResource:@"soundeffect" ofType:@"m4a"]; 
NSURL *pathURL = [NSURL fileURLWithPath : path]; 

SystemSoundID audioEffect; 
AudioServicesCreateSystemSoundID((__bridge CFURLRef) pathURL, &audioEffect); 
AudioServicesPlaySystemSound(audioEffect); 

// call the following function when the sound is no longer used 
// (must be done AFTER the sound is done playing) 
AudioServicesDisposeSystemSoundID(audioEffect); 

Answer 2

我用這個：

頭文件：

#import <AudioToolbox/AudioServices.h> 

@interface SoundEffect : NSObject 
{ 
    SystemSoundID soundID; 
} 

- (id)initWithSoundNamed:(NSString *)filename; 
- (void)play; 

@end 

源文件：

#import "SoundEffect.h" 

@implementation SoundEffect 

- (id)initWithSoundNamed:(NSString *)filename 
{ 
    if ((self = [super init])) 
    { 
     NSURL *fileURL = [[NSBundle mainBundle] URLForResource:filename withExtension:nil]; 
     if (fileURL != nil) 
     { 
      SystemSoundID theSoundID; 
      OSStatus error = AudioServicesCreateSystemSoundID((__bridge CFURLRef)fileURL, &theSoundID); 
      if (error == kAudioServicesNoError) 
       soundID = theSoundID; 
     } 
    } 
    return self; 
} 

- (void)dealloc 
{ 
    AudioServicesDisposeSystemSoundID(soundID); 
} 

- (void)play 
{ 
    AudioServicesPlaySystemSound(soundID); 
} 

@end 

您將需要創建一個SoundEffect實例並直接調用該方法。

Answer 3

（小修改正確的答案照顧音頻的處置）

NSString *path = [[NSBundle mainBundle] pathForResource:@"soundeffect" ofType:@"m4a"]; 
NSURL *pathURL = [NSURL fileURLWithPath : path]; 

SystemSoundID audioEffect; 
AudioServicesCreateSystemSoundID((__bridge CFURLRef) pathURL, &audioEffect); 
AudioServicesPlaySystemSound(audioEffect); 
// Using GCD, we can use a block to dispose of the audio effect without using a NSTimer or something else to figure out when it'll be finished playing. 
dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(30 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{ 
    AudioServicesDisposeSystemSoundID(audioEffect); 
}); 

Answer 4

您可以使用AVFoundation或AudioToolbox

我這裏還有兩個例子，其中單獨使用的庫。

• SAMSoundEffect
• BRYSoundEffectPlayer