NSNotificationCenter

注册页面－－－－－－－－－－－－－－－

//在通知中心注册通知

[[NSNotificationCenterdefaultCenter]addObserver:selfselector:@selector(receive:)name:@"receive"object:nil];

[play.btnaddTarget:selfaction:@selector(playMusic)forControlEvents:UIControlEventTouchUpInside];

// Do any additional setup after loading the view.

}

-(void)receive:(NSNotification*)noti

{

play.btn.selected=NO;

dic= noti.object;

NSString*path = [[NSBundlemainBundle]pathForResource:[dicobjectForKey:@"name"]ofType:@"mp3"];

NSURL*url = [NSURLfileURLWithPath:path];

play1= [[AVAudioPlayeralloc]initWithContentsOfURL:urlerror:nil];

play.current.text=[selfchangeTime:play1.currentTime];

play.duration.text= [selfchangeTime:play1.duration];

self.navigationItem.title= [dicobjectForKey:@"name"];

}

使用界面－－－－－－－－－－－

//给消息中心发通知

[[NSNotificationCenterdefaultCenter]postNotificationName:@"receive"object:[arrobjectAtIndex:indexPath.row]];