Question

I have a tableViewController that I will present once in a while.

I have created it as a property, on .h

myTVC *myTable;

and

@property (nonatomic, retain) myTVC *myTable;

then, on .m I have synthesized it and created a getter

@synthesize myTable = _myTable;

and

- (myTVC *) myTable {

    if (_myTable == nil) { 
        _myTable = [[myTVC alloc] init];
    }
    return _myTable;
}

when it is time to use I simply do

[self presentModalViewController:myTable animated:YES];
[myTable release];

as far as I thought, myTable’s getter would run at this point and allocate the tableViewController, but it is not running and the app crashes telling me that I am trying to present a nil tableViewController…

What am I missing? Thanks.

Answer 1

you need to do self.myTable if you do myTable you are asseccing your iVar that is call myTable into which your @property is not store, because you are doing this : @synthesize myTable = _myTable; which will create an iVar call _myTable.

So you are doing 2 wrongs things in here.
To correct your code do the following :
remove this line : myTVC *myTable;
and do [self presentModalViewController:self.myTable animated:YES];

A 3rd thing is also strange in your code

[self presentModalViewController:myTable animated:YES];
[myTable release];  // <---- this line, remove it to

I’m not sure why that line is there since you are storing your controller in a @property.

and a 4th By the way
The default initializer for a UIViewController is the following

- (id)initWithNibName:(NSString *)nibName bundle:(NSBundle *)nibBundle

You can pass nil if you don’t have a .xib to go with it.