Reducing the space between sections of the UITableView

Is there a way to reduce the space between two sections of a UITableView? There are about 15 pixels between every single section I have. I did already try to return 0 for -tableView:heightForFooterInSection: and -tabl开发者_开发问答eView:heightForHeaderInSection: but that doesn't change anything.

Any suggestions?

It was a bit tricky, but try this code:

- (CGFloat)tableView:(UITableView*)tableView 
           heightForHeaderInSection:(NSInteger)section {
    if (section == 0) {
        return 6.0;
    }

    return 1.0;
}

- (CGFloat)tableView:(UITableView*)tableView 
           heightForFooterInSection:(NSInteger)section {
    return 5.0;
}

- (UIView*)tableView:(UITableView*)tableView 
           viewForHeaderInSection:(NSInteger)section {
    return [[UIView alloc] initWithFrame:CGRectZero];
}

- (UIView*)tableView:(UITableView*)tableView 
           viewForFooterInSection:(NSInteger)section {
    return [[UIView alloc] initWithFrame:CGRectZero];
}

Change the values accordingly. To remove the space, I think 0.0 will not be accepted. The smallest sane value seems to be 1.0.

For all who want to shrink the distance to 0 you have to use:

tableView.sectionHeaderHeight = 0.0;
tableView.sectionFooterHeight = 0.0;

Because the serving of the UITableViewDelegate does only make an effect starting from floats greater than zero.

-(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];
}

(using iOS 4.1 with XCode 4.0.2)

You can actually set the footer/header/cell heights in Interface Builder under the size tab. By default the header/footer are set at 10.0.

You have to reduce the section header/footer height. Then the space between sections will be reduce.

try this code

It works for me :-)

tableView.sectionHeaderHeight = 2.0;
tableView.sectionFooterHeight = 2.0;

You can also reduce the height of section footer and header from the storyboard. In the tableview -> size inspector. Go to Section Height.

By default it is set to 22 for Plain style table and 10 for grouped style table. You can configure values by increasing / decreasing the values for header and footer separately.

For me the issue was because I was using a grouped table view style (UITableViewStyleGrouped). When I changed it to a plain style (UITableViewStylePlain) my tableView:heightForHeaderInSection: method was the only thing determining the size of each section header.

Use this perhaps, 0 will not work as expected

func tableView(_ tableView: UITableView, heightForHeaderInSection section: Int) -> CGFloat {
     return .leastNormalMagnitude
}

func tableView(_ tableView: UITableView, heightForFooterInSection section: Int) -> CGFloat {
    return .leastNormalMagnitude
}

UPDATE FOR iOS7: Due to ARC autorelease update, here's @Martin Stolz code edited.

-(CGFloat)tableView:(UITableView*)tableView heightForHeaderInSection:(NSInteger)section
{
    if(section == 0)
        return 6;
    return 1.0;
}

-(CGFloat)tableView:(UITableView*)tableView heightForFooterInSection:(NSInteger)section
{
    return 5.0;
}

-(UIView*)tableView:(UITableView*)tableView viewForHeaderInSection:(NSInteger)section
{
    return [[UIView alloc] initWithFrame:CGRectMake(0, 0, 0, 0)];
}

-(UIView*)tableView:(UITableView*)tableView viewForFooterInSection:(NSInteger)section
{
    return [[UIView alloc] initWithFrame:CGRectMake(0, 0, 0, 0)];
}

(Using iOS7, Xcode v5.0)

For me just this issue got resolved just by using the following code,

func tableView(_ tableView: UITableView, heightForHeaderInSection section: Int) -> CGFloat {
    return section == 0 ? 1 : 20 // 20 is my other sections height
}

Returning 1 for the first section has solved the issue.

To change header/footer space the following methods have to be implemented:

func tableView(_ tableView: UITableView, viewForHeaderInSection section: Int) -> UIView?

AND

func tableView(_ tableView: UITableView, heightForHeaderInSection section: Int) -> CGFloat

(use corresponding methods to change footer height)

The following code completely removes spaces around sections:

public func tableView(_ tableView: UITableView, viewForHeaderInSection section: Int) -> UIView? {
    return nil
}

public func tableView(_ tableView: UITableView, viewForFooterInSection section: Int) -> UIView? {
    return nil
}

public func tableView(_ tableView: UITableView, heightForFooterInSection section: Int) -> CGFloat {
    return .leastNonzeroMagnitude
}

public func tableView(_ tableView: UITableView, heightForHeaderInSection section: Int) -> CGFloat {
    return .leastNonzeroMagnitude
}

Swift 5, iOS 13+

Option 1 - When creating the table view

tableView.sectionHeaderHeight = 0
tableView.sectionFooterHeight = 0

Option 2 - More flexible for other views and sections

// Top space for sections
public func tableView(_ tableView: UITableView, heightForHeaderInSection section: Int) -> CGFloat {
    return 0
}

// Bottom space for sections
public func tableView(_ tableView: UITableView, heightForFooterInSection section: Int) -> CGFloat {
    return 0
}