ActionSheet in NavController with TabBarController - Exc_Bad_Access - objective-c

Question

I'm currently have a weird problem.
I have an actionsheet with pickerView in with two button (cancel, and Ok).
They work perfectly until i choose a value in that picker and i click on the first button of my TabBarController which contain my NavigationController.
My actionsheet is declared in my .h and has property (nonatomic, retain), i release it in my dealloc function.
I have an exc_bad_access if i release this object and i dont know why because i allocated it.
This is my function which create my Actionsheet if is nil, and build it.
- (IBAction)select_marque :(id)sender
{
if (!actionSheet_marque)
{
actionSheet_marque = [[UIActionSheet alloc] initWithTitle:nil delegate:nil cancelButtonTitle:nil destructiveButtonTitle:nil otherButtonTitles:nil];
}
[actionSheet_marque setActionSheetStyle:UIActionSheetStyleBlackTranslucent];
CGRect pickerFrame = CGRectMake(0, 40, 0, 0);
picker_marque = [[UIPickerView alloc] initWithFrame: pickerFrame];
picker_marque.showsSelectionIndicator = YES;
picker_marque.dataSource = self;
picker_marque.delegate = self;
[actionSheet_marque addSubview: picker_marque];
[picker_marque release];
UILabel *lbl = [[UILabel alloc] initWithFrame: CGRectMake(110, 7.0f, 150.0f, 30.0f)];
lbl.text = #"Marque";
lbl.backgroundColor = [UIColor clearColor];
lbl.textColor = [UIColor whiteColor];
[actionSheet_marque addSubview:lbl];
[lbl release];
UISegmentedControl *closeButton = [[UISegmentedControl alloc] initWithItems:[NSArray arrayWithObject:#"Ok"]];
closeButton.momentary = YES;
closeButton.frame = CGRectMake(260, 7.0f, 50.0f, 30.0f);
closeButton.segmentedControlStyle = UISegmentedControlStyleBar;
closeButton.tintColor = [UIColor blueColor];
[closeButton addTarget:self action:#selector(dismissActionSheet:) forControlEvents:UIControlEventValueChanged];
[actionSheet_marque addSubview:closeButton];
[closeButton release];
UISegmentedControl *cancelButton = [[UISegmentedControl alloc] initWithItems:[NSArray arrayWithObject:#"Cancel"]];
cancelButton.momentary = YES;
cancelButton.frame = CGRectMake(5, 7.0f, 50.0f, 30.0f);
cancelButton.segmentedControlStyle = UISegmentedControlStyleBar;
cancelButton.tintColor = [UIColor redColor];
cancelButton.tag = 1;
[cancelButton addTarget:self action:#selector(cancelActionSheet:) forControlEvents:UIControlEventValueChanged];
[actionSheet_marque addSubview:cancelButton];
[cancelButton release];
[actionSheet_marque showInView: self.navigationController.view];
[actionSheet_marque setBounds:CGRectMake(0, 0, 320, 485)];
}
I check also if the pointer is nil in dealloc method....
Thanks

Answer 1

If you have property of UIActionsheet then you should use self.actionSheet_marque when you allocate it. Try changing code like this
if (!actionSheet_marque)
{
self.actionSheet_marque = [[[UIActionSheet alloc] initWithTitle:nil delegate:nil cancelButtonTitle:nil destructiveButtonTitle:nil otherButtonTitles:nil] autorelease];
}
[self.actionSheet_marque setActionSheetStyle:UIActionSheetStyleBlackTranslucent];
And in whole function except this line if (!actionSheet_marque)