Hiding UITableView footer - ios

Question

I am unable to hide my UITableView footer (i.e. setting it's height to 0 and animating the transition).
I tried to wrap tableView.tableViewFooter.height = 0 (and tableView.tableViewFooter = nil) between [tableView beginUpdates] and [tableView endUpdates] but it doesn't work.
Implementing the method below creates another footer.
- (CGFloat)tableView:(UITableView *)tableView heightForFooterInSection:(NSInteger)section
{
return 50;
}
Is there a difference between a tableview footer and a section footer? I created mine by dropping a button under my tableview in my storyboard.
Any ideas to do this simply?

Answer 1

Ok here's how I solved this problem.
- (void)refreshTableFooterButton
{
if (should be visible) {
self.tableView.tableFooterView = self.tableFooterButton;
} else {
self.tableView.tableFooterView = [[UIView alloc] initWithFrame:CGRectZero];
}
}
I used [[UIView alloc] initWithFrame:CGRectZero instead of nil to prevent unwanted empty cells to appear in the tableview.
I didn't need an animation block, but other people might.
[UIView animateWithDuration:0.5 animations:^{
}];
Also, i had to keep a strong reference to my tableFooterButton IBOutlet. That was part of why my initial attempt at solving the problem failed. I'm not sure if having a strong reference to an IBOutlet is good practice though. Feel free to leave a comment about that.

Answer 2

using the following code :
self.tableView.tableFooterView?.hidden = false

Answer 3

This should do the trick. There are other alternatives such as this answer here.
tableView.sectionHeaderHeight = 0.0;
tableView.sectionFooterHeight = 0.0;
-(CGFloat)tableView:(UITableView*)tableView heightForHeaderInSection:(NSInteger)section
{
return 1.0;
-(CGFloat)tableView:(UITableView*)tableView heightForFooterInSection:(NSInteger)section
{
return 1.0;
}
-(UIView*)tableView:(UITableView*)tableView viewForHeaderInSection:(NSInteger)section
{
return [[[UIView alloc] initWithFrame:CGRectZero] autorelease];
}
-(UIView*)tableView:(UITableView*)tableView viewForFooterInSection:(NSInteger)section
{
return [[[UIView alloc] initWithFrame:CGRectZero] autorelease];
}`

Answer 4

use following methods :
- (CGFloat)tableView:(UITableView *)tableView heightForHeaderInSection:(NSInteger)section
{
return 0.0f;
}
-(UIView*)tableView:(UITableView*)tableView viewForFooterInSection:(NSInteger)section
{
return [[[UIView alloc] initWithFrame:CGRectZero] autorelease];
}`

Answer 5

So in the end here's the simplest solution I can give you. So as you can see I just put the .m (for simplicity).
There is a difference between table footer and section footer. What you're looking for is the section footer.
I also added an animation block for adding and removing it.
#import "ViewController.h"
#interface ViewController ()
#end
#implementation ViewController
UIButton *_footerButton;
- (void)viewDidLoad
{
[super viewDidLoad];
// Do any additional setup after loading the view, typically from a nib.
[self createAndAddFooterButton];
}
-(void) buttonPressed:(id)button
{
[UIView animateWithDuration:2 animations:^{
self.tableView.tableFooterView = nil;
}];
}
- (void)createAndAddFooterButton
{
// here you create the button
_footerButton = [UIButton buttonWithType:UIButtonTypeRoundedRect];
[_footerButton setTitle:#"Button Title" forState:UIControlStateNormal];
[_footerButton sizeToFit];
[_footerButton addTarget:self action:#selector(buttonPressed:) forControlEvents:UIControlEventTouchUpInside];
[UIView animateWithDuration:2 animations:^{
self.tableView.tableFooterView = _footerButton;
}];
}
#end

Answer 6

My problem was that the clear line was the footer which I could only define as 1 pixel high and not 0 (as I do not want to have a footer).
The only way I could fix it was to provide a view in viewForFooterInSection and set the background colour to the same as the header, so that visually you don't notice, and when I animate-in new rows they do not show through the top of the header where the clear line (footer) was.
override func tableView(tableView: UITableView, viewForFooterInSection section: Int) -> UIView? {
let blankView = UIView(frame: CGRect(x: 0, y: 0, width: 300, height: 1))
blankView.backgroundColor = {Same colour as Header}
return blankView