scrollview背景

- (void)viewDidLoad
{
    [super viewDidLoad];
	// Do any additional setup after loading the view, typically from a nib.
    //CGFloat w = self.view.frame.size.width;
    //CGFloat h = self.view.frame.size.height;
    int w = self.view.bounds.size.width;
    int h = self.view.bounds.size.height;
    
    self.view.backgroundColor = [UIColor redColor];
    
    
    _scrollView = [[UIScrollView alloc]initWithFrame:self.view.frame];
    _scrollView.backgroundColor = [UIColor blueColor];
    

    [self.view addSubview:_scrollView];
    
    
    
    UIView *view = [[UIView alloc]initWithFrame:self.view.frame];
    [_scrollView addSubview: view];
    
    view.backgroundColor = [UIColor yellowColor];
    
    for(int i = 0;i< kCount;i++)
    {
        
        NSString *name = [NSString stringWithFormat:@"%02d.jpg",i+1];
        UILabel *label = [[UILabel alloc] init];
        label.frame = CGRectMake(i*w, 0, w, h);
        label.text = name;
        [view addSubview:label];
        
        
    }
    
    
    _scrollView.userInteractionEnabled = YES;
    
    _scrollView.contentSize = CGSizeMake(kCount*w, 800);// height == 0 代表 禁止垂直方向滚动
    _scrollView.scrollEnabled = YES;
    _scrollView.pagingEnabled = YES;
    
    _scrollView.delegate = self;

    
    
}