UIScrollView is not scrolling even with setting contentSize

Question

My UIScrollView isn't scrolling. (I'm trying to get it to scroll horizontally) I'm setting the contentSize to be (960, 300). I have set the framesize of the UIScrollView to be width:320 height:300 in the storyboard.

I have a container view inside the scroll view that has a width of 960 points.

At 320 points, I have a subview that has a background color of brown. When I scroll, I can see the brown subview, but it bounces back when I let go of the drag.

This is my viewDidLoad method:

- (void)viewDidLoad
    [super viewDidLoad];
    self.scrollView.scrollEnabled = YES;

    [self.scrollView setFrame:CGRectMake(0,0,320,300)];
    self.scrollView.contentSize = CGSizeMake(960, 300);

    UIView *subview1 = [[UIView alloc] initWithFrame:CGRectMake(320, 0, 320, 300)];
    [subview1 setBackgroundColor:[UIColor brownColor]];

    UIView *containerView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 960, 300)];
    [containerView addSubview:subview1];

    [self.scrollView addSubview:containerView];
}

JZAU JZAU · Accepted Answer · 2014-09-23T17:07:44

Here is a sample code for create a scroll view programmatically:

[super viewDidLoad];
// Do any additional setup after loading the view, typically from a nib.

UIScrollView* scrollView = [[UIScrollView alloc] initWithFrame:CGRectMake(0, 0, 320, 300)];
scrollView.backgroundColor = [UIColor redColor];
scrollView.scrollEnabled = YES;
scrollView.contentSize = CGSizeMake(960, 300);
[self.view addSubview:scrollView];

UIView *subview1 = [[UIView alloc] initWithFrame:CGRectMake(320, 0, 320, 300)];
[subview1 setBackgroundColor:[UIColor brownColor]];

UIView *containerView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 960, 300)];
containerView.backgroundColor = [UIColor greenColor];
[containerView addSubview:subview1];

[scrollView addSubview:containerView];

So, there is no issue in your code, but something wrong with your storyboard configure.

UIScrollView is not scrolling even with setting contentSize

2 Answers