Ios7 在视图之间传递NSString将返回NULL

我试图在视图之间返回一个

NSString

。代码如下：

数据源：

.h:

.m:

加载视图： .m:

我的问题是什么？

看起来像是

-（NSDate*）date

从未调用过，并且

selectedDate

没有填入正确的值。

Please do this
VIEWNAME *firstviewObj=[[VIEWName alloc]init];
NSDate *myDate = [firstviewobj date];
NSLog(@"%@",firstviewObj.selectedDate);

Remember myDate and firstviewObj.selectDate will give same result

@synthesise selectedDate;

-(NSDate *)date
{
    NSInteger monthCount = [self.months count];
    NSString *month = [self.months objectAtIndex:([self selectedRowInComponent:MONTH] % monthCount)];

    NSInteger yearCount = [self.years count];
    NSString *year = [self.years objectAtIndex:([self selectedRowInComponent:YEAR] % yearCount)];

    NSDateFormatter *formatter = [[NSDateFormatter alloc] init]; [formatter setDateFormat:@"MMMM:yyyy"];
    NSDate *date = [formatter dateFromString:[NSString stringWithFormat:@"%@:%@", month, year]];
    selectedDate = [NSString stringWithFormat:@"%@", date];
    return date;
}

[VIEWNAME] *firstviewObj=[[[VIEWNAME] alloc]init];
    NSLog(@"%@",firstviewObj.selectedDate);

Please do this
VIEWNAME *firstviewObj=[[VIEWName alloc]init];
NSDate *myDate = [firstviewobj date];
NSLog(@"%@",firstviewObj.selectedDate);

Remember myDate and firstviewObj.selectDate will give same result