I got the following error and I can't seem to figure out what happened. Please help me.
Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[UIViewController tableView:numberOfRowsInSection:]: unrecognized selector sent to instance 0x57405a0'
If you're using:
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section { return [array count]; } –
Try:
NSLog(@"%i", [array count]);
And see what returns. Maybe the array is not been properly allocated.
This could be anything. It might be a delegate being called which does not implement the protocol, or it might be a memory leak where a call is made on some released memory. Hard to tell like this. Try compiling with "Analyze" and check all warnings.
I had a similar problem, but the solution was not associated with the numberOfRowsInSection: method as Xcode was pointing too.
Instead, the overriding problem was that I had not set my UIViewController's Custom Class setting... In my case it was empty instead of having a valid class name like "DetailsVC2" in the example image below. Once I corrected this issue the usual numberOfRowsInSection: operation is recognized and called correctly.
Typically, you want to return the count of an array (e.g. tableData), but in my very simple case I returned the value of 1.
NSArray *tableData; // Defined somewhere above, and populated prior to the viewDidAppear() operation
.
.
.
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
return 1; // or tableData.count;
}
