Unrecognized selector sent to instance when adding a UITableView as SubView - ios

Question

When i've created a UITableView in the code en add it as a subview in the code it is all working fine. There is green tableview visible.
Example of the code i've created for that.
- (void)getOverviewTable
{
// Adding the TableView
OverviewTableViewController *overviewTableViewController = [[OverviewTableViewController alloc] init];
UITableView *overviewTableView = [[UITableView alloc] initWithFrame:(CGRectMake(0, 0, self.view.frame.size.width, self.view.frame.size.height))];
// Set the datasource and delegete will come here
[overviewTableView setBackgroundColor:[UIColor greenColor]];
[self.view addSubview:overviewTableView];
}
But after i've set the DataSource and the Delegete for the TableView i will receive a warning.
The code in total for reaching it is as follows:
- (void)getOverviewTable
{
// Adding the TableView
OverviewTableViewController *overviewTableViewController = [[OverviewTableViewController alloc] init];
UITableView *overviewTableView = [[UITableView alloc] initWithFrame:(CGRectMake(0, 0, self.view.frame.size.width, self.view.frame.size.height))];
// Set the datasource and delegete will come here
[overviewTableView setDataSource:overviewTableViewController];
[overviewTableView setDelegate:overviewTableViewController];
[overviewTableView setBackgroundColor:[UIColor greenColor]];
[self.view addSubview:overviewTableView];
}
The most of the time it is just an EXC_BAD_ACCESS error, but sometimes it shows me the following error.
[UITransitionView numberOfRowsInSection:]: unrecognized selector sent to instance
The 'OverViewTableViewController' is replaced by just an empty UITableViewController class but the error is still showing up.
(Point of the application is an fullscreen takeover which has to be swiped away to see the tableview underneath it)
Edit:
The function is called from the viewDidLoad function
- (void)viewDidLoad
{
[super viewDidLoad];
// Do any additional setup after loading the view.
[self.view setBackgroundColor:[UIColor colorWithPatternImage:[UIImage imageNamed:#"bg.jpg"]]];
// Setting the home takeover
[self setHomeTakeOver];
// Wait one seconde before we load the tableview
[self getOverviewTable];
//[self performSelector:#selector(getOverviewTable) withObject:nil afterDelay:1.0];
}

Answer 1

What I think is you have your project ARC enabled and from your code segment what i understand is that overviewTableViewController is released through ARC as soon as it leaves the scope of the function getOverviewTable. So, better declare the overviewTableViewController in .h file(#property (nonatomic, strong) OverviewTableViewController *overviewTableViewController; ).
If you do this then the code will look like this
in .h file
#property (nonatomic, strong) OverviewTableViewController *overviewTableViewController;
//// I have strong reference rather than assign
in .m file
- (void)getOverviewTable
{
// Adding the TableView
overviewTableViewController = [[OverviewTableViewController alloc] init]; //// I have made overviewTableViewController as member variable.
UITableView *overviewTableView = [[UITableView alloc] initWithFrame:(CGRectMake(0, 0, self.view.frame.size.width, self.view.frame.size.height))];
// Set the datasource and delegete will come here
[overviewTableView setDataSource:overviewTableViewController];
[overviewTableView setDelegate:overviewTableViewController];
[overviewTableView setBackgroundColor:[UIColor greenColor]];
[self.view addSubview:overviewTableView];
[overviewTableView reloadData];
}
Also be sure that OverviewTableViewController has implemented the datasource methods like
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView;
- (NSInteger)tableView:(UITableView *)table numberOfRowsInSection:(NSInteger)section;
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath;

Answer 2

Try this.
[overviewTableView setDataSource:self];
[overviewTableView setDelegate:self];
Also confirm to tableviewDelegate and datasource and implement following methods.
-(NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
return 1;
}
-(NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
return 10;
}
-(UITableViewCell*)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *CellIdentifier=#"CellIdentifier";
UITableViewCell *cell=[tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if(cell==nil)
{
cell=[[UITableViewCell alloc]initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier];
}
return cell;
}

Answer 3

You might have forgotten to implement this method.
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
// Return the number of rows in the section.
}

Answer 4

Try setting the table view controller's tableView property to overviewTableView. I don't know off hand if the UITableViewController must have that property set.
- (void)getOverviewTable
{
// Adding the TableView
OverviewTableViewController *overviewTableViewController = [[OverviewTableViewController alloc] init];
UITableView *overviewTableView = [[UITableView alloc] initWithFrame:(CGRectMake(0, 0, self.view.frame.size.width, self.view.frame.size.height))];
// Set the datasource and delegete will come here
[overviewTableView setDataSource:overviewTableViewController];
[overviewTableView setDelegate:overviewTableViewController];
//THIS IS THE NEW LINE
//a UITableViewController needs to know UITableView that it's managing
[overviewTableViewController setTableView:overviewTableView];
[overviewTableView setBackgroundColor:[UIColor greenColor]];
[self.view addSubview:overviewTableView];
}