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SOUND SERVICE系统音效服务+震动功能实现

2012-03-21 13:57  java环境变量  阅读(376)  评论(0)  编辑  收藏  举报
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PlaySoundDemo1ViewController.h
  1. #import <UIKit/UIKit.h>
  2. #include <AudioToolbox/AudioToolbox.h>

  4. @interface PlaySoundDemo1ViewController : UIViewController {
  5.     IBOutlet UISwitch *swcallback;
  6.     IBOutlet UIPickerView *soundPicker;
  7.     NSArray *soundData;
  8.         SystemSoundID        soundFileObject;   
  9. }

  11. @property (nonatomic,retain) UISwitch *swcallback;
  12. @property (nonatomic,retain) UIPickerView *soundPicker;
  13. @property (nonatomic,retain)  NSArray *soundData;
  14. @property (readonly)        SystemSoundID        soundFileObject;

  16. static void completionCallback (SystemSoundID  mySSID, void* myself) ;
  17. - (IBAction) playSystemSound;
  18. - (IBAction) playAlertSound;
  19. - (IBAction) vibrate;
  20. -(IBAction) stopplaysound;
  21. -(void) GetPlaysound;

  23. @end
复制代码
PlaySoundDemo1ViewController.m
  1. //----------- 限制 ------------
  2. //声音长度要小于 30 秒
  3. // In linear PCM 或者 IMA4 (IMA/ADPCM) 格式的
  4. //需为 .caf, .aif, 或者 .wav 的档案
  5. //不能控制播放的进度
  6. //调用方法后立即播放声音
  7. //没有循环播放和立体声控制
  8. //参考数据：
  9. //http://blog.xiang.li/2009/02/iphone-dev-audio-play/
  10. //https://developer.apple.com/iphone/library/samplecode/SysSound/

  12. #import "PlaySoundDemo1ViewController.h"

  14. @implementation PlaySoundDemo1ViewController

  16. @synthesize swcallback,soundPicker,soundData,soundFileObject;

  18. //停止当前音效的播放
  19. -(IBAction) stopplaysound{    
  20.     AudioServicesRemoveSystemSoundCompletion (self.soundFileObject);
  21. }

  23. //建立声音对象
  24. -(void) GetPlaysound{
  25.     [self stopplaysound];
  26.     
  27.    //取出使用者所选择的音效项目 
  28.    NSInteger row=[ soundPicker selectedRowInComponent:0];
  29.    
  30.     //指定不同的音效文件
  31.     NSString *soundfilename;
  32.     switch (row) {
  33.         case 0:
  34.              soundfilename=@"sound1.aiff"; 
  35.             break;
  36.         case 1:
  37.              soundfilename=@"sound2.aiff"; 
  38.             break;
  39.         case 2:
  40.              soundfilename=@"sound3.aiff"; 
  41.             break;            
  42.         default:
  43.             break;
  44.     }

  46.    
  47.     NSString *Path=[[NSBundle mainBundle] bundlePath];
  48.     NSURL *soundfileURL=[NSURL fileURLWithPath:[Path stringByAppendingPathComponent:soundfilename]]; 
  49.     
  50.     //建立音效对象
  51.     AudioServicesCreateSystemSoundID((CFURLRef)soundfileURL, &soundFileObject);
  52.     
  53.     //判断是否连续播放
  54.     if ([swcallback isOn]){
  55.         // Add sound completion callback
  56.         AudioServicesAddSystemSoundCompletion (soundFileObject, NULL, NULL,completionCallback,(void*) self);    
  57.     }    
  58. }

  60. //当音效播放完毕后的处理方式，这里设定为再一次播放
  61. static void completionCallback (SystemSoundID  mySSID, void* myself) {
  62.     AudioServicesPlaySystemSound(mySSID);    
  63. } 

  65. - (IBAction) playSystemSound{     
  66.      [self GetPlaysound];
  67.         AudioServicesPlaySystemSound (self.soundFileObject);    
  68.   //  AudioServicesDisposeSystemSoundID (self.soundFileObject);
  69. }

  71. -(IBAction) playAlertSound{   
  72.      [self GetPlaysound];
  73.     //播放音效
  74.     AudioServicesPlayAlertSound (self.soundFileObject);    
  75. }
  76. - (IBAction) vibrate{
  77.     //震动
  78.         AudioServicesPlaySystemSound (kSystemSoundID_Vibrate);
  79. }

  81. - (void)viewDidLoad {
  82.     [super viewDidLoad];
  83.     
  84.     //建立音效清单数组
  85.     NSArray *array=[[NSArray alloc] initWithObjects:@"音效1",@"音效2",@"音效3",nil];
  86.     self.soundData=array;
  87.     [array release];
  88. }
  89. - (void)dealloc {
  90.     [super dealloc];
  91.     AudioServicesDisposeSystemSoundID (self.soundFileObject);
  92. }
  93. #pragma mark -
  94. #pragma mark soundPicker Data Soure 
  95. - (NSInteger)numberOfComponentsInPickerView:(UIPickerView *)pickerView{
  96.     return 1;
  97. }
  98. - (NSInteger)pickerView:(UIPickerView *)pickerView numberOfRowsInComponent:(NSInteger)component{
  99.     return [soundData count];
  100.   }
  101. #pragma mark -
  102. #pragma mark soundPicker Delegate 
  103. - (NSString *)pickerView:(UIPickerView *)pickerView titleForRow:(NSInteger)row forComponent:(NSInteger)component{
  104.     return [soundData objectAtIndex:row];
  105. }