iOS实现mp3播放效果

#import <UIKit/UIKit.h>//加入AVFoundation.framework头文件#import <AVFoundation/AVFoundation.h>@interface RootViewController : UIViewController<AVAudioPlayerDelegate>{  //播放器player  AVAudioPlayer *avAudioPlayer;}@end

#import "RootViewController.h"//导入AVFoundation.framework#import <AVFoundation/AVFoundation.h>@interface RootViewController ()@end@implementation RootViewController- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil{  self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];  if (self) {    // Custom initialization  }  return self;}- (void)viewDidLoad{  [super viewDidLoad];  // Do any additional setup after loading the view.    self.title=@"MP3的播放";}-(void)initPlay{  //从budle路径下读取音频文件  NSString *string = [[NSBundle mainBundle] pathForResource:@"母亲" ofType:@"mp3"];    //把音频文件转换成url格式  NSURL *url = [NSURL fileURLWithPath:string];    //初始化音频类 并且添加播放文件  avAudioPlayer = [[AVAudioPlayer alloc] initWithContentsOfURL:url error:nil];    //开始进行播放  [avAudioPlayer play];    }