1、聲音播放

聲音播放

NSString *path = [[NSBundle mainBundle] pathForResource:@"win" 
                                                     ofType:@"wav"];
    SystemSoundID soundID;
    AudioServicesCreateSystemSoundID((CFURLRef)[NSURL fileURLWithPath:path]
                                     , &soundID);
    AudioServicesPlaySystemSound (soundID);

2、音頻播放＋震動

1.	#import 
2.	#include 
3.	
4.	@interface PlaySoundDemo1ViewController : UIViewController {
5.	    IBOutlet UISwitch *swcallback;
6.	    IBOutlet UIPickerView *soundPicker;
7.	    NSArray *soundData;
8.	        SystemSoundID        soundFileObject;   
9.	}
10.	
11.	@property (nonatomic,retain) UISwitch *swcallback;
12.	@property (nonatomic,retain) UIPickerView *soundPicker;
13.	@property (nonatomic,retain)  NSArray *soundData;
14.	@property (readonly)        SystemSoundID        soundFileObject;
15.	
16.	static void completionCallback (SystemSoundID  mySSID, void* myself) ;
17.	- (IBAction) playSystemSound;
18.	- (IBAction) playAlertSound;
19.	- (IBAction) vibrate;
20.	-(IBAction) stopplaysound;
21.	-(void) GetPlaysound;
22.	
23.	@end
複製代碼
PlaySoundDemo1ViewController.m
1.	//----------- 限制 ------------
2.	//聲音長度要小於 30 秒
3.	// In linear PCM 或者 IMA4 (IMA/ADPCM) 格式的
4.	//需為 .caf, .aif, 或者 .wav 的檔案
5.	//不能控制播放的進度
6.	//調用方法後立即播放聲音
7.	//沒有循環播放和立體聲控制
8.	//參考資料：
9.	//http://blog.xiang.li/2009/02/iphone-dev-audio-play/
10.	//https://developer.apple.com/iphone/library/samplecode/SysSound/
11.	
12.	#import "PlaySoundDemo1ViewController.h"
13.	
14.	@implementation PlaySoundDemo1ViewController
15.	
16.	@synthesize swcallback,soundPicker,soundData,soundFileObject;
17.	
18.	//停止當前音效的播放
19.	-(IBAction) stopplaysound{    
20.	    AudioServicesRemoveSystemSoundCompletion (self.soundFileObject);
21.	}
22.	
23.	//建立聲音物件
24.	-(void) GetPlaysound{
25.	    [self stopplaysound];
26.	    
27.	   //取出使用者所選擇的音效項目 
28.	   NSInteger row=[ soundPicker selectedRowInComponent:0];
29.	   
30.	    //指定不同的音效檔
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.	    }
45.	
46.	   
47.	    NSString *Path=[[NSBundle mainBundle] bundlePath];
48.	    NSURL *soundfileURL=[NSURL fileURLWithPath:[Path stringByAppendingPathComponent:soundfilename]]; 
49.	    
50.	    //建立音效物件
51.	    AudioServicesCreateSystemSoundID((CFURLRef)soundfileURL, &soundFileObject);
52.	    
53.	    //判斷是否連續播放
54.	    if ([swcallback isOn]){
55.	        // Add sound completion callback
56.	        AudioServicesAddSystemSoundCompletion (soundFileObject, NULL, NULL,completionCallback,(void*) self);    
57.	    }    
58.	}
59.	
60.	//當音效播放完畢後的處理方式，這裡設定為再一次播放
61.	static void completionCallback (SystemSoundID  mySSID, void* myself) {
62.	    AudioServicesPlaySystemSound(mySSID);    
63.	} 
64.	
65.	- (IBAction) playSystemSound{     
66.	     [self GetPlaysound];
67.	        AudioServicesPlaySystemSound (self.soundFileObject);    
68.	  //  AudioServicesDisposeSystemSoundID (self.soundFileObject);
69.	}
70.	
71.	-(IBAction) playAlertSound{   
72.	     [self GetPlaysound];
73.	    //播放音效
74.	    AudioServicesPlayAlertSound (self.soundFileObject);    
75.	}
76.	- (IBAction) vibrate{
77.	    //震動
78.	        AudioServicesPlaySystemSound (kSystemSoundID_Vibrate);
79.	}
80.	
81.	- (void)viewDidLoad {
82.	    [super viewDidLoad];
83.	    
84.	    //建立音效清單陣列
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.	}
106.	
107.	AudioToolbox.frameworkAudioToolbox.framework

3、MP3 播放

1）、背景音樂播放    支持mp3格式 循環播放長音樂

這種播放音樂的方式導入框架#import ；

NSString *musicFilePath = [[NSBundle mainBundle] pathForResource:@"changan" ofType:@"mp3"];       //創建音樂文件路徑
  NSURL *musicURL = [[NSURL alloc] initFileURLWithPath:musicFilePath];  

   AVAudioPlayer *thePlayer = [[AVAudioPlayer alloc] initWithContentsOfURL:musicURL error:nil];

// 創建播放器
  self.myBackMusic = thePlayer;    //賦值給自己定義的類變量
  
  [musicURL release];
  [thePlayer release];
  
  [myBackMusic prepareToPlay];
  [myBackMusic setVolume:1];   //設置音量大小
  myBackMusic.numberOfLoops = -1;//設置音樂播放次數  -1為一直循環
  if (mainMusicStatus) 
  {
   [myBackMusic play];   //播放
  }


  2）、按鈕播放聲音
需要導入框架#import    

NSString *thesoundFilePath = [[NSBundle mainBundle] pathForResource:@"Clapping Crowd Studio 01" ofType:@"caf"];    //創建音樂文件路徑
CFURLRef thesoundURL = (CFURLRef) [NSURL fileURLWithPath:thesoundFilePath];
AudioServicesCreateSystemSoundID(thesoundURL, &sameViewSoundID); 

//變量SoundID與URL對應

AudioServicesPlaySystemSound(sameViewSoundID);  // 播放SoundID聲音

4、視頻播放

視頻播放
#import 
#import 
@interface MoveTestViewController : UIViewController {
    NSURL *movieURL;
	MPMoviePlayerController *moviePlayer;
}
@property(nonatomic,retain)NSURL *movieURL;
@property(nonatomic,retain)MPMoviePlayerController *moviePlayer;
-(void)initAndPlayMovie:(NSURL *)movieURL;
-(NSURL *)localMovieURL;
-(IBAction)ok;
@end

//
//  MoveTestViewController.m
//  MoveTest
//
//  Created by zhen hu on 10/20/10.
//  Copyright ww 2010. All rights reserved.
//

#import "MoveTestViewController.h"

@implementation MoveTestViewController
@synthesize movieURL;
@synthesize moviePlayer;
-(IBAction)ok{
	//獲得工程中電影文件的路徑
	NSURL *url=[self localMovieURL];
	//播放
	[self initAndPlayMovie:url];
}
-(void)initAndPlayMovie:(NSURL *)movUrl
{
	// 創建播放器
	MPMoviePlayerController *mp = [[MPMoviePlayerController alloc] initWithContentURL:movUrl];
	if (mp)//如果不為空
	{
		self.moviePlayer = mp;
		[mp release];
		[self.moviePlayer play];//播放對象
		
		//4.0專用
		self.moviePlayer.view.frame = CGRectMake(0, 0, 320, 300);
		[self.view addSubview:moviePlayer.view];
	}
}


//-(void)initAndPlayNetMovie:(NSURL *)movieURL
//{	
//	
//	MPMoviePlayerController *mp = [[MPMoviePlayerController alloc] initWithContentURL:movieURL];
//	if (mp)
//	{
//		self.musicPlayer=mp;
//		[mp release];		
//		
//		musicPlayer.view.frame = CGRectMake(0, 340, 320, 5);
//		[self.view addSubview:musicPlayer.view];
// 
//	}
//	
//}

-(NSURL *)localMovieURL
{
    if (movieURL == nil)
    {
        NSBundle *bundle = [NSBundle mainBundle];
        if (bundle) 
        {//得到文件絕對路徑地址
            NSString *moviePath = [bundle pathForResource:@"Movie" ofType:@"m4v"];
            //NSString *netPath=@"http://www.sina.com.cn/xx.m4v";
			if (moviePath)
            {// 把路徑轉換為NSURL對象
                self.movieURL = [NSURL fileURLWithPath:moviePath];
            }
        }
    }
    
    return self.movieURL;
}


- (void)didReceiveMemoryWarning {
	// Releases the view if it doesn't have a superview.
    [super didReceiveMemoryWarning];
	
	// Release any cached data, images, etc that aren't in use.
}

- (void)viewDidUnload {
	// Release any retained subviews of the main view.
	// e.g. self.myOutlet = nil;
}


- (void)dealloc {
    [super dealloc];
}

@end