UIProgressView Progress Not Working for a local audio file Using AVAudio Player

Question

My ProgressView doesn't update the progress. I Did this by Interface Builder. My ProgressView is in a tableViewCell.

//Declared in TableViewCell
@property(nonatomic,retain) IBOutlet UIProgressView *progressview;

and also Synthesized in Cell implementation.

then imported in my viewController

 //Declared AVAudioPlayer
 AVAudioPlayer *player;

in cellForRowAtIndexpath method :

obj.progressview.progress = 0.0;

in didSelectRowAtIndexPath method :

NSTimer *myTimer = [NSTimer scheduledTimerWithTimeInterval:1 target:self selector:@selector(methodToUpdateProgress) userInfo:nil repeats:YES];

m_timer = [NSTimer scheduledTimerWithTimeInterval:0.1
                                               target:self
                                             selector:@selector(updateTime:)
                                             userInfo:nil
                                              repeats:YES];

For every 1 second my methodToUpdateProgress is Called

-(void)methodToUpdateProgress{
    dispatch_async(dispatch_get_main_queue(), ^{

    [obj.progressview setProgress:(float)(player.currentTime/player.duration) animated:YES];
    NSLog(@"method");
    });
}

I have a button with 2 actions Play and Pause. Those 2 actions works completely fine.

If I click on a Row in tableview, corresponding song plays, timer starts and for every 1 sec it called my methodToUpdateProgress,but my ProgressView doesn't show any progress.

Help me what should I do ?