UIPickerView crashes app when user is spinning components at the same time

UIPickerView crashes app when user is spinning components at the same time

I've got really unbearable issue with UIPickerView. There're 2 components:
first one with food categories, and second with foods inside each
category. I've got proper arrays with foods, which looks like:
ViewController.h
@property (strong, nonatomic) NSArray *leftPickerDataSource;
@property (strong, nonatomic) NSArray *vegetablesDataSource;
@property (strong, nonatomic) NSArray *eggsDataSource;
@property (strong, nonatomic) NSArray *pastaDataSource;
@property (strong, nonatomic) NSArray *riceDataSource;
@property (strong, nonatomic) NSArray *meatDataSource;
ViewController.m
...
@implementation ViewController
@synthesize foodPicker;
@synthesize leftPickerDataSource;
@synthesize vegetablesDataSource;
@synthesize eggsDataSource;
@synthesize pastaDataSource;
@synthesize riceDataSource;
@synthesize meatDataSource;
- (void)viewDidLoad
{
[super viewDidLoad];
self.leftPickerDataSource = [NSArray arrayWithObjects: @"Vegetables",
@"Eggs", @"Pasta", @"Rice", @"Meat", nil];
self.vegetablesDataSource = [NSArray arrayWithObjects:@"Potatoes",
@"Broad bean", @"Beans", @"Broccoli", @"Cabbage", @"Cauliflower",
@"Corn", nil];
self.eggsDataSource = [NSArray arrayWithObjects:@"Soft-boiled",
@"Hard-boiled", nil];
self.pastaDataSource = [NSArray arrayWithObjects:@"Pasta",
@"Spaghetti", nil];
self.riceDataSource = [NSArray arrayWithObjects:@"White", @"Brown",
@"Black", @"Red", nil];
self.meatDataSource = [NSArray arrayWithObjects:@"Sausages", @"Crabs",
@"Lobsters", @"Shrimps", nil];
}
I believe arrays ain't the problem, but when I spin two components of
picker at the same time, the app usually crashes with EXC_BAD_ACCESS
(Code=1...).
Here goes my UIPickerView:
ViewController.m
- (NSInteger)numberOfComponentsInPickerView:(UIPickerView *)pickerView
{
return 2;
}
- (NSInteger)pickerView:(UIPickerView *)pickerView
numberOfRowsInComponent:(NSInteger)component
{
if (component == 0) {
// Left picker
return [leftPickerDataSource count];
//[foodPicker selectRow:0 inComponent:1 animated:YES];
}
else {
// Right picker
NSInteger sRow = [foodPicker selectedRowInComponent:0];
if ([[leftPickerDataSource objectAtIndex:sRow]
isEqual:@"Vegetables"])
return [vegetablesDataSource count];
else if ([[leftPickerDataSource objectAtIndex:sRow] isEqual:@"Eggs"])
return [eggsDataSource count];
else if ([[leftPickerDataSource objectAtIndex:sRow]
isEqual:@"Pasta"])
return [pastaDataSource count];
else if ([[leftPickerDataSource objectAtIndex:sRow] isEqual:@"Rice"])
return [riceDataSource count];
else if ([[leftPickerDataSource objectAtIndex:sRow] isEqual:@"Meat"])
return [meatDataSource count];
}
}
- (NSString *)pickerView:(UIPickerView *)pickerView
titleForRow:(NSInteger)row forComponent:(NSInteger)component
{
if (component == 0) {
// Left picker
return [leftPickerDataSource objectAtIndex:row];
}
else {
// Right picker
NSInteger sRow = [foodPicker selectedRowInComponent:0];
if ([[leftPickerDataSource objectAtIndex:sRow]
isEqual:@"Vegetables"])
return [vegetablesDataSource objectAtIndex:row];
else if ([[leftPickerDataSource objectAtIndex:sRow] isEqual:@"Eggs"])
return [eggsDataSource objectAtIndex:row];
else if ([[leftPickerDataSource objectAtIndex:sRow]
isEqual:@"Pasta"])
return [pastaDataSource objectAtIndex:row];
else if ([[leftPickerDataSource objectAtIndex:sRow] isEqual:@"Rice"])
return [riceDataSource objectAtIndex:row];
else if ([[leftPickerDataSource objectAtIndex:sRow] isEqual:@"Meat"])
return [meatDataSource objectAtIndex:row];
}
}
- (void)pickerView:(UIPickerView *)pickerView didSelectRow:(NSInteger)row
inComponent:(NSInteger)component {
if (component == 0)
[foodPicker reloadComponent:1];
}
Can't find anything suspicious here too. Have no idea why, but spinning
the wheels crashes the app. I looked for answers at SO, but nothing helps
:/
Have you any idea what's the matter?