table view in popover is not scrolling - ios

Question

I have the code below to display popover with tableview and it works perfectly.
The tableview displays 13 numbers and I can scroll and see the same but when I release mouse-touch on simulator it goes back to the top.
It does not stay at the row which its displaying but takes me back to 1st to 10th row .
How do I make it stay in the position after scrolling. Or any fix in the below code.
Thanks in Advance.
- (IBAction)btn:(id)sender {
if([popoverController isPopoverVisible])
{
[popoverController dismissPopoverAnimated:YES];
return;
}
//build our custom popover view
UIViewController* popoverContent = [[UIViewController alloc]init];
UIView* popoverView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 320, 680)];
popoverView.backgroundColor = [UIColor blackColor];
numbers = [[NSMutableArray alloc] initWithObjects:#"1",#"2", #"3",#"4",#"5", #"6",#"7", #"8", #"9",#"10",#"11", #"12",#"13",nil];
UITableView *tblViewMenu = [[UITableView alloc]initWithFrame:CGRectMake(0, 0, 320, 680)];
tblViewMenu.delegate = self;
tblViewMenu.dataSource = self;
tblViewMenu.rowHeight = 32;
[popoverView addSubview:tblViewMenu];
popoverContent.view = popoverView;
popoverContent.contentSizeForViewInPopover = CGSizeMake(320, 320);
popoverController = [[UIPopoverController alloc]
initWithContentViewController:popoverContent];
[popoverController presentPopoverFromRect:self.btn.frame inView:self.view permittedArrowDirections:UIPopoverArrowDirectionUp animated:YES];
}
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {
// Return the number of sections.
return 1;
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
// Return the number of rows in the section.
return [numbers count];
}
// Customize the appearance of table view cells.
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
static NSString *CellIdentifier = #"Cell";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil) {
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier] ;
}
// Configure the cell...
NSString *color = [numbers objectAtIndex:indexPath.row];
cell.textLabel.text = color;
return cell;
}
#pragma mark -
#pragma mark Table view delegate
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
NSString *number = [numbers objectAtIndex:indexPath.row];
NSLog(#"%#",number);
[popoverController dismissPopoverAnimated:YES];
}
I Guess I need to change the values below:
UIView* popoverView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 320, 680)];
UITableView *tblViewMenu = [[UITableView alloc]initWithFrame:CGRectMake(0, 0, 320,680)]];
If I use
UIView* popoverView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 320, 320)];
Then
UITableView *tblViewMenu = [[UITableView alloc]initWithFrame:CGRectMake(0, 0, 320,320)]];
But when I scroll down it keeps coming to the top row .It does not stay in the same row which is being scrolled to .

Answer 1

Use autoresizing correctly!
Popover - has content size
popoverView - its initial size should be the same as popover's content size and use
UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight
tblViewMenu- its initial size should be the same as the size of its ancestor (popoverView), again, use UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight
Your table is not scrolling because it is so big that it doesn't needs scrolling. Only the popover is clipping it.
CGSize contentSize = CGSizeMake(320, 320);
UIView* popoverView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, contentSize.width, contentSize.height)];
popoverView.autoresizingMask = (UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight);
UITableView *tblViewMenu = [[UITableView alloc]initWithFrame:popoverView.bounds];
tblViewMenu.autoresizingMask = (UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight);
popoverContent.contentSizeForViewInPopover = contentSize;

Answer 2

Try set the ContentSize of the tableView, like this:
[tblViewMenu setContentSize:CGSizeMake(320,680)];
Also, I'd prefere to make the size of the tableView dynamic. depend on your tableView Datasource array.
UPDATE
To make the tableView dynamic, use this:
[tblViewMenu setContentSize:CGSizeMake(320, ([numbers count] * 32))];
And if you have a header view that has a hight like the other cells, just add 1 to [number count], that would be like this:
[tblViewMenu setContentSize:CGSizeMake(320, (([numbers count] + 1) * 32))];