Zooming UIImageView in UIScrollView goes out of bounds

- (void)viewDidLoad {
    [super viewDidLoad];
    
     for(int ii=0; ii<[myArray count];ii++)
    {
        NSString *strFilePath = [myArray objectAtIndex:ii];
        if (![strFilePath isEqualToString:@""]) {
            NSString *proimg1 =[NSString stringWithFormat:@"%@/%@",kBaseURL,strFilePath];
            [arrayOfImages addObject:proimg1];
        }
    }
    
    int x = 0;
    int y = 32;
    int z = 0;
    for (j=0; j<arrayOfImages.count;j++){

        imageView = [[AsyncImageView alloc]init];
        [[AsyncImageLoader sharedLoader] cancelLoadingImagesForTarget:imageView];
        NSURL *url = [NSURL URLWithString:[arrayOfImages objectAtIndex:j]];
        imageView.imageURL = url;
        [imageView setContentMode:UIViewContentModeScaleAspectFit];
        imageView.clipsToBounds = YES;
        imageView.tag = 1;
        
        self.scrollViewimg = [[UIScrollView alloc] initWithFrame:CGRectMake( self.imageScrollView.frame.size.width * z++, y,self.imageScrollView.frame.size.width,imageScrollView.frame.size.height)];
        self.scrollViewimg.delegate = self;
        self.scrollViewimg.minimumZoomScale = 1.0f;
        self.scrollViewimg.maximumZoomScale = 2.0f;
        imageView.frame = self.scrollViewimg.bounds;
      
        [self.scrollViewimg addSubview:imageView];
        [self.imageScrollView addSubview:self.scrollViewimg];
        x = x + self.imageScrollView.frame.size.width;

    }
    
    [imageScrollView setContentOffset:CGPointMake((myInteger*self.imageScrollView.frame.size.width), self.imageScrollView.frame.size.height)];
    imageScrollView.contentSize=CGSizeMake(x, y);
    imageScrollView.pagingEnabled=TRUE;
}

- (UIView *)viewForZoomingInScrollView:(UIScrollView *)scrollView {
    return [scrollView viewWithTag:1];
}