//play music button method
- (IBAction)playMusicButtonPressed:(id)sender {




    NSLog(@"playing");

    [audioPlayer stop];




    //get path of audio file
    NSString *path = [NSHomeDirectory() stringByAppendingPathComponent:[NSString stringWithFormat: @"Documents/%@",song.songTitle, @"mp3"]];



    //error
    NSError *error;

    //check whether file is exist or not
    NSFileManager *filemanager = [NSFileManager defaultManager];

    if (![filemanager fileExistsAtPath:path]) {


        UIAlertView *alertView = [[UIAlertView alloc] initWithTitle:@"File Has Been deleted" message:@"Remove it from Database also" delegate:nil cancelButtonTitle:@"Ok" otherButtonTitles:nil];
        [alertView show];
        [alertView release];
    }

    else
    {
        soundFileURL = [NSURL fileURLWithPath:[NSHomeDirectory() stringByAppendingPathComponent: [NSString stringWithFormat: @"Documents/%@",song.songTitle, @"mp3"]]];

        audioPlayer =[[AVAudioPlayer alloc]initWithContentsOfURL:soundFileURL error:&error];
        audioPlayer.delegate = self;
        NSLog(@"Sound File path %@",soundFileURL);


    }



    // NSLog(@"Sound File path %@",soundFileURL);


        NSLog(@"Stopped");

        //prepare audio player
    [audioPlayer prepareToPlay];
    [audioPlayer play];


    if (audioPlayer) {


        NSTimeInterval duration = [audioPlayer currentTime];
        [self setCurrentAudioProgress:0.0 duration:duration];

        //   [playMusic setTitle:@"Pause" forState:UIControlStateNormal];

        //  [playMusic addTarget:self action:@selector(pause) forControlEvents:UIControlEventTouchUpInside];
    }

    ///start timer
    [NSTimer scheduledTimerWithTimeInterval:1
                                     target:self
                                   selector:@selector(updatePreviewingProgress:)
                                   userInfo:nil
                                    repeats:YES];






}