How to disable scrolling in UITableView table when the content fits on the screen

254
votes

I have a few (grouped style) tables in my iphone app (only on part of the screen and added with Interface Builder though, not subclassed from UITableViewController) that 80% of the time are small and will fit on the screen. When the table fits on the screen, I'd like to disable scrolling, to make it a bit cleaner. But if the table goes off the screen (when rows are later added to it), I'd like to enable scrolling again (because otherwise you can't see that content.)

Is there a way to do this? I can't seem to figure it out. I do know to do: 

tableView.scrollEnabled = NO;

but I'm not sure where, or if I have to calculate the table object size or something to get this to work.

Update: Here's the solution that finally worked for me: 
if (table.contentSize.height < table.frame.size.height) {
   table.scrollEnabled = NO;
 }
else {
   table.scrollEnabled = YES;
 }

I run this code after calling reloadData on the table, and it calculates the right sizes and appears to work.

table.frame.size.height is the actual size of the object (you can see this in Interface Builder) displayed on the screen, whereas table.contentSize.height is the heights of: the header, the footer, and the height of every cell added together.

9
iphoneiosuitableviewscroll
Thanks. That solution worked for me. However, I ended up extending UITableView and overriding reloadData to disable scrollEnabled. The reason is that the table view is loaded when my view controller is created. That way you don't have to call reloadData twice. – Brandon O'Rourke
@JoeBlow I think you missed OP's point. The question isn't how to disable bounce, it's how to only enable scrolling (and bounce, most likely) when the tableview needs to scroll. – Kyle Clegg
Maybe is better to use bounds, because I think if you rotate a bit your table, frame.height is going to change. – Ricardo
There should be: if (table.contentSize.height <= table.frame.size.height) – Grzegorz Krukowski

9 Answers

419
votes

I think you want to set 

tableView.alwaysBounceVertical = NO;
55
votes

In Swift:

tableView.alwaysBounceVertical = false
45
votes

You can verify the number of visible cells using this function:

- (NSArray *)visibleCells

This method will return an array with the cells that are visible, so you can count the number of objects in this array and compare with the number of objects in your table.. if it's equal.. you can disable the scrolling using:

tableView.scrollEnabled = NO;

As @Ginny mentioned.. we would can have problems with partially visible cells, so this solution works better in this case:

tableView.scrollEnabled = (tableView.contentSize.height <= CGRectGetHeight(tableView.frame));

In case you are using autoLayout this solution do the job:

tableView.alwaysBounceVertical = NO.
22
votes

So there's are multiple answers and requires a all content at once place so I'm adding this answer:

If you're using AutoLayout, by setting this only should work for you:

  • In code:

tableView.alwaysBounceVertical = false

  • or In Interface Builder:

Just find this option and untick "Bounce Vertically" option.

Here's the reference:

enter image description here

If you're not using AutoLayout:

 override func viewDidLayoutSubviews() {
    // Enable scrolling based on content height
    tableView.isScrollEnabled = tableView.contentSize.height > tableView.frame.size.height
 }
13
votes

try this 

[yourTableView setBounces:NO];
9
votes

You can set enable/disable bounce or scrolling the tableview by selecting/deselecting these in the Scroll View area

Scroll View editing area

5
votes

// Enable scrolling based on content height self.tableView.scrollEnabled = table.contentSize.height > table.frame.size.height;

3
votes

You can edit this in your storyboard (if you are using one). Under the table view there is a checkbox that says "Scrolling Enabled". Uncheck it and you're done.

0
votes

The default height is 44.0f for a tableview cell I believe. You must be having your datasource in hand in a Array? Then just check if [array count]*44.0f goes beyond the frame bounds and if so set tableview.scrollEnabled = NO, else set it to YES. Do it where you figure the datasource out for that particular tableview.