音视频

 1.录音

 NSString*path = [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory,NSUserDomainMask,YES)lastObject];
   
   
    path = [path stringByAppendingPathComponent:@"123.MP3"];
   
    NSURL *url = [NSURLURLWithString:path];

   
    //1.1创建录音对象
    // settings  录音文件质量的
    NSDictionary *setting = [NSDictionarydictionary];
    AVAudioRecorder *recorder = [[AVAudioRecorderalloc]initWithURL:urlsettings:settingerror:nil];
   
    //2.开始

    [recorderrecord];

   2.播放音效

  //1.获取文件
   
    NSString *path = @"/Users/apple/Desktop/123.MP3";
   
    NSURL *url = [NSURLfileURLWithPath:path];
   
    SystemSoundID soundID = 0;
   
    //1.返回值  2.&
    //桥接
    AudioServicesCreateSystemSoundID((__bridgeCFURLRef _Nonnull)(url), &soundID);
   
   
    //2.播放
   
    //没有震动效果
    AudioServicesPlaySystemSound(soundID);
   
    //有震动效果

//    AudioServicesPlayAlertSound(soundID);

3.播放多个文件,工具类

#import<Foundation/Foundation.h>

@interfaceCZPlayMusicTool : NSObject
//播放音乐
+ (void)playAudioWithName:(NSString*)name;
//暂停音乐
+ (void)pauseAudioWithName:(NSString*)name;
//停止音乐
+ (void)stopAudioWithNmae:(NSString*)name;

@end

---

#import"CZPlayMusicTool.h"
#import <AVFoundation/AVFoundation.h>

staticNSMutableDictionary *_players;
@implementationCZPlayMusicTool

+ (void)initialize{
   
    _players = [NSMutableDictionarydictionary];
}
//播放音乐
+ (void)playAudioWithName:(NSString*)name{
   
    AVAudioPlayer *player = _players[name];
   
    if (player == nil) {
   
    NSString *path = [[NSBundlemainBundle]pathForResource:nameofType:nil];
   
    NSURL *url = [NSURLfileURLWithPath:path];
   
    player = [[AVAudioPlayeralloc]initWithContentsOfURL:urlerror:nil];
        [_playerssetObject:playerforKey:name];
    }
    //开始播放
    [player play];
   
}
//暂停音乐
+ (void)pauseAudioWithName:(NSString*)name{
    AVAudioPlayer *player = _players[name];
    if (player) {
        [player pause];
    }
}
//停止音乐
+ (void)stopAudioWithNmae:(NSString*)name{
    AVAudioPlayer *player = _players[name];
    if (player) {
       [player stop];
    }
 
   

}

- (IBAction)play:(id)sender {
    [CZPlayMusicTool playAudioWithName:@"咖啡.mp3"];
}
- (IBAction)stop:(id)sender {
    [CZPlayMusicToolplayAudioWithName:@"煎饼侠.mp3"];
}
- (IBAction)anting:(id)sender {
    [CZPlayMusicToolpauseAudioWithName:@"煎饼侠.mp3"];
}
- (IBAction)djkfs:(id)sender {
    [CZPlayMusicToolstopAudioWithNmae:@"咖啡.mp3"];
}
- (IBAction)stop2:(id)sender {
    [CZPlayMusicToolstopAudioWithNmae:@"煎饼侠.mp3"];

}