Memory Leak while using NSDateFormatter - iphone

Question

I have seen many questions/answers on memory leaks in NSDateFormatter, but none seems to help me determine what is causing memory to leak in my app. Here is my code:
- (id)init
{
if ((self = [super init]))
{
items = [[NSMutableArray alloc] init];
events = [[NSMutableArray alloc] init];
buffer = [[NSMutableData alloc] init];
format = [[NSDateFormatter alloc] init];
lastFromDate = #"";
}
return self;
}
- (void)presentingDatesFrom:(NSDate *)fromDate to:(NSDate *)toDate delegate:(id<KalDataSourceCallbacks>)delegate
{
[format setTimeZone:[NSTimeZone systemTimeZone]];
[format setDateFormat:#"MM/dd/yyyy"];
NSString *stringFromDate = [NSString stringWithString:[format stringFromDate:fromDate]];
NSString *stringToDate = [NSString stringWithString:[format stringFromDate:toDate]];
NSLog(#"From date: %#, To date: %#", stringFromDate, stringToDate);
[self didDatesChange:stringFromDate];
if (dataReady) {
[callback loadedDataSource:self];
return;
}
callback = delegate;
[self retrieveEventData:stringFromDate to:stringToDate];
}
- (void)dealloc
{
[items release];
[events release];
[buffer release];
[lastFromDate release];
[format release];
[super dealloc];
}
When I run "Profile" -> "Leaks", I get a memory leak every time the function is called on line
NSString *stringFromDate = [NSString stringWithString:[format stringFromDate:fromDate]];
Can someone explain what might be going on?
thanks, mike

Answer 1

FYI you can change this:
NSString *stringFromDate = [NSString stringWithString:[format stringFromDate:fromDate]];
to this:
NSString *stringFromDate = [format stringFromDate:fromDate];
stringWithString should return an autoreleased NSString though so I don't believe that is the source of your leak. It looks like there is no leak in your code to me.

Answer 2

you just use bellow method for get string from date its work properly......
-(NSString *)StringFromDate:(NSDate *)DateLocal{
NSDateFormatter *dateFormat = [[NSDateFormatter alloc] init];
[dateFormat setDateFormat:#"MM/dd/yyyy"];
NSString *dateString = [dateFormat stringFromDate:DateLocal];
NSLog(#"Date is HERE =====>> %#",dateString);
return dateString;
}
after when you want to get date string just use like bellow....
NSString *stringFromDate = [self stringFromDate:fromDate]];
[stringfromdate retain];
NSString *stringToDate = [self stringFromDate:toDate]];
[stringTodate retain];
and above -(NSString *)StringFromDate:(NSDate *)DateLocal method is must be define in your viewcontroller.m file....
Its work fine....