How to change the style of a UITableViewController programmatically in Xcode - iphone

Question

I'm trying to change the style of a UITableViewController to grouped. I know you can do this when creating a new table view, but I have a class that extends UITableViewController, so I don't need to make a new table view. Here's my code:
#import "DetailViewController.h"
#import "NSArray-NestedArrays.h"
#implementation DetailViewController
#synthesize steak, sectionNames, rowControllers, rowKeys, rowLabels;
- (void)viewDidLoad {
sectionNames = [[NSArray alloc] initWithObjects:[NSNull null], NSLocalizedString(#"General", #"General"), nil];
rowLabels = [[NSArray alloc] initWithObjects:
[NSArray arrayWithObjects:NSLocalizedString(#"Steak Name", #"Steak Name"), nil],
[NSArray arrayWithObjects:NSLocalizedString(#"Steak Wellness", #"Steak Wellness"), NSLocalizedString(#"Steak Type", #"Steak Type"), NSLocalizedString(#"Other", #"Other"), nil]
, nil];
rowKeys = [[NSArray alloc] initWithObjects:
[NSArray arrayWithObjects:#"steakName", nil],
[NSArray arrayWithObjects:#"steakWellness", #"steakType", #"other", nil]
, nil];
// TODO: Populate row controllers array
[super viewDidLoad];
}
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {
return [sectionNames count];
}
- (NSString *)tableView:(UITableView *)tableView titleForHeaderInSection:(NSInteger)section {
id theTitle = [sectionNames objectAtIndex:section];
if ([theTitle isKindOfClass:[NSNull class]]) {
return nil;
}
return theTitle;
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
return [rowLabels countOfNestedArray:section];
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
static NSString *CellIdentifier = #"SteakCellIdentifier";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil) {
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleValue2 reuseIdentifier:CellIdentifier];
}
NSString *rowKey = [rowKeys nestedObjectAtIndexPath:indexPath];
NSString *rowLabel = [rowLabels nestedObjectAtIndexPath:indexPath];
cell.detailTextLabel.text = rowKey;
cell.textLabel.text = rowLabel;
cell.accessoryType = UITableViewCellAccessoryDisclosureIndicator;
return cell;
}
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
// TODO: Push editing controller onto the stack
}
#end

Answer 1

- (instancetype)init
{
self = [super initWithStyle:UITableViewStyleGrouped];
if (self) {
}
return self;
}

Answer 2

Not following? What do you mean by you don't have to "make a new table view"?? You still have to instantiate one.
Either you created one already and it has the style you want, or you have to instantiate a new one and set the property on it.
tableView.style is READONLY. So you can't change the style of an existing one. You are going to have to do something like:
[MyTableViewSubClass initWithFrame:aFrame style:UITableViewStyleGrouped];

Answer 3

You can not just change the style of an UITableView. So you only have 2 options:
Make another UITableView which is grouped
Use custom cells
Hope it helps

Answer 4

You would take care of this when you instantiated your view controller.
For example, to instantiate a normal UITableViewController you would do the following.
UITableViewController *tblCtr = [[UITableViewController alloc]initWithStyle:UITableViewStyleGrouped];
Therefore, if you have extended UITableViewController then your init code should take care of this.
MyCustomTableViewController *mctvc = [[MyCustomTableViewController alloc]initWithStyle:UITableViewStyleGrouped];
To achieve this you will need to implement this method in your .m file. Below is an example of what your header and implementation file should contain for instantiation.
Header
#interface MyCustomTableViewController : UITableViewController
{
-(id)initWithStyle:(UITableViewStyle)style;
}
Implementation
#implementation MyCustomTableViewController
-(id)initWithStyle:(UITableViewStyle)style
{
self = [super initWithStyle:style];
if(self)
{
...
return self;
}
return nil;
}
#end
When you call [super initWithStyle:style] the code provided by apple will take care of building the tableview for you with the requested view style.

Answer 5

You can create a new tableview to overwrite UITableviewController's tableview like this:
UITableView *tableView = [[UITableView alloc] initWithFrame:self.tableView.frame style:UITableViewStyleGrouped];
self.tableView = tableView;

Answer 6

simply buddy to allocate set the frame and style of table ..example code write down.
[tableObject initWithFrame:CGRectMake(x,y,width,height) style:UITableViewStyleGrouped];