Decimal numbers works in iPhone simulator but NOT on iPhone device

Question

Hi everybody, I noticed a weird behaviour of iPhone OS when using decimal values. The simulator parse them from strings in a correct way but when I test the app on my iPhone it lose the decimal part.

In particular, I store values in a dictionary that I retrieve in this way:

Code:

NSString *thickStr = [dictionary valueForKey:@"thickness"];
NSNumber *thickNum = [[[self class] numberFormatter] numberFromString:thickStr];
[self setSpessore:thickNum];

where the "numberFormatter" class is defined as below:

Code:

+ (NSNumberFormatter *)numberFormatter
{
    static NSNumberFormatter *_formatter;

    if (_formatter == nil)
    {
        _formatter = [[NSNumberFormatter alloc] init];
        [_formatter setNumberStyle:NSNumberFormatterDecimalStyle];
        [_formatter setFormatterBehavior:NSNumberFormatterBehavior10_4];
        [_formatter setGeneratesDecimalNumbers:TRUE];

    }

    return _formatter;
}

But it doesn't work! The App on iPhone keeps on convert the string to a simple integer, forgetting the decimal part, while the app on iPhone simulator works fine!