How can I set a UITableView to grouped style

Question

I have a UITableViewController subclass with sections. The sections are showing with the default style (no rounded corners). How can I set the TableView style to grouped in the code? I'm not using Interface Builder for this, so I need something like

[self.tableView setGroupedStyle]

I searched on Stack Overflow, but couldn't come up with an answer.

Cookshop

Swift version: Link – Alleviation

Answer 1

If i understand what you mean, you have to initialize your controller with that style. Something like:

myTVContoller = [[UITableViewController alloc] initWithStyle:UITableViewStyleGrouped];

Doublecheck

As stated it is not a property that can be changed. One grouped always grouped. – Bifurcate

This is not a correct answer, it's not solving the problem of having a UITableViewController subclass. If you inherit UITableViewController, you have to override the constructor not create another UITableView or UITableViewController. – Magistrate

How would you do this if it's a subclassed controller, as stated in the question? – Kare

Answer 2

You can do the following:

UITableView *myTable = [[UITableView alloc] initWithFrame:CGRectZero style:UITableViewStyleGrouped];

Swift 3:

let tableView = UITableView.init(frame: CGRect.zero, style: .grouped)

Condyloid

THIS IS THE REAL SOLUTION! THANKS. The accepted answer is wrong, at least for OS 3.0+ – Frankly

Please note that there was a typo in the accepted solution. I've fixed it now. Both answers work for me, but they instantiate different things. This answer is a UITableView, the accepted answer is a UITableViewController. – Cookshop

Actually, the accepted answer is misleading. Please read what the OP said "I have a UITableViewConotroller subclass". The accepted answer ONLY gives you a plain jane UITableViewController; without knowing details it is impossible to solve the users problem regarding the subclass. This answer and using self.myTable would probably be better, IMHO. – Anyway

This also works with constraints on iOS8 (don't know about iOS7)...just initialize with a frame of CGRectZero along with your tableview style and then add your constraints and you get the right style along with your constraints. – Consciousness

Answer 3

I give you my solution, I am working in "XIB mode", here the code of a subclass of a UITableViewController :

-(id)initWithCoder:(NSCoder *)aDecoder
{
    self = [super initWithStyle:UITableViewStyleGrouped];
    return self;
}

Sensitivity

Caveat to this solution - if this is under a navigationController in the NIB, it will lose that reference and make you really confused. – Koonce

Answer 4

Below code Worked for me, I am also using UITableview class

- (id)initWithStyle:(UITableViewStyle)style
{
     self = [super initWithStyle:UITableViewStyleGrouped];

     if (self)
    {

     }
    return self;
}

Dalston

This is the right solution for people using a subclass of UITableViewController. Thanks! – Dysteleology

Answer 5

If you are inheriting UITableViewController, you can just init tableView again.

Objective C:

self.tableView = [[UITableView alloc] initWithFrame:CGRectZero style:UITableViewStyleGrouped];

Swift:

self.tableView = UITableView(frame: CGRect.zero, style: .grouped)

Extremity

Answer 6

Setting that is not that hard as mentioned in the question. Actually it's pretty simple. Try this on storyboard.

Pretense

If you're already having a tableView as part of a TableViewController setting it this way is the best. Other answers focus more on instantiating a new tableView, etc. – Enervate

Answer 7

Swift 4+:

let myTableViewController = UITableViewController(style: .grouped)

Alleviation

Answer 8

Swift 4

Using Normal TableView

let tableView = TableView(frame: .zero, style: .grouped)

Using TPKeyboardAvoidingTableView

let tableView = TPKeyboardAvoidingTableView(frame: .zero, style: .grouped)

Aperient

Answer 9

If you create your UITableView in code, you can do the following:

class SettingsVC: UITableViewController {

    init() {
        if #available(iOS 13.0, *) {
            super.init(style: .insetGrouped)
        } else {
            super.init(nibName: nil, bundle: nil)
        }
     }
    
     @available(*, unavailable)
     required init?(coder aDecoder: NSCoder) {
         fatalError("init(coder:) has not been implemented")
     }
 }

Caterinacatering

IMHO, this is currently the right answer. Create an init method, where all the properties needed to work are initialized, and then call super.init(style: .insetGrouped). – Vaden

Answer 10

For set grouped style in ui itself:-Select the TableView then change the "style"(in attribute inspector)) from plain to Grouped.

Eolith

Answer 11

You can also do this if you want to use it on a subclass you've already created in a separate swift file (probably not 100% correct but works)

override init(style: UITableViewStyle) {
    super.init(style: style)
    UITableViewStyle.Grouped
}

required init?(coder aDecoder: NSCoder) {
    fatalError("init(coder:) has not been implemented")
}

Now in you appdelegate.swift you can call:

let settingsController = SettingsViewController(style: .Grouped)

Apotheosis

Answer 12

You can do this with using storyboard/XIB also

1. Go To storyboard -> Select your viewController -> Select your table
2. Select the "Style" property in interface-builder
3. Select the "Grouped"
4. Done

Daugava

Answer 13

If you have one TableView for more tables, and one of this tables is grouped and the another one plain, than you can simulate the plain style with the function from UITableViewDelegate:

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

Liar

Answer 14

swift 4

if you don't want use storyboard, this might be help.

you can add table view and set properties in a closure:

lazy var tableView: UITableView = {
        let tableView = UITableView(frame: .zero, style: .grouped)

        tableView.backgroundColor = UIColor(named: Palette.secondaryLight.rawValue)
        tableView.rowHeight = 68
        tableView.separatorStyle = .none
        tableView.translatesAutoresizingMaskIntoConstraints = false
        return tableView
    }()

then add in subview and set constraints.

Rickie

Answer 15

If you're not using Storyboards and just want a clean, concise way to setup your UITableViewController subclass to use a different tableView style, you can simply override loadView like this:

override func loadView() {
    let tableView = UITableView(frame: .zero, style: .grouped)
    tableView.delegate = self
    tableView.dataSource = self
    view = tableView
}

As the documentation says:

loadView creates the view that the controller manages it's a method you can ovveride when using ViewControllers whose views are not defined via Storyboards or NIBs.

The UITableViewController implementation already overrides this method for you to crate a simple, plain UITableView as the root view for the controller, but nothing stops you from further overriding it to create a table view that better suits your needs.

Just remember:

Your custom implementation of this method should not call super.

Although

Answer 16

You can also try to make the separator line color clear which could give the grouped style effect:

[myTVContoller.tableView setSeparatorColor:[UIColor clearColor]];

Halfcaste

Sections will not collapse this way. – Cinch

Answer 17

You can use:

(instancetype)init {
return [[YourSubclassOfTableView alloc] initWithStyle:UITableViewStyleGrouped];
}

Delastre

Answer 18

self.tableView.style = UITableViewStyleGrouped

EDIT:

Had assumed this was a read/write property. In that case, you can either follow Dimitris advice and set the style when you instantiate the controller, or (if you're using a XIB), you can set it via IB.

Confederacy

Thanks for the reply. I'm not using an XIB, I've a tab controller with a subview which is my custom class. Not sure where I can put the initWithStyle call, I'm not doind the TableView init, it's done by the tab controller. Changing the initWithStyle in the TableViewController doesn't seem to work. – Cookshop

As dimitris said, if you're not using a XIB, you must be init'ing the UITableViewController somewhere. That's where you want to use the initWithStyle: call. – Confederacy