NSMutable array, do not retain the added object

Question

I have a UITextField called txtvwEmail. i am adding the text from txtvwEmail.text to the Array pastUrls but after adding the next text it remove the first text. Im using the code

if (![pastUrls containsObject:txtvwEmail.text]) {
    [pastUrls addObject:txtvwEmail.text];
}

Can you elaborate more on what you were trying to do / expecting? — mopsled
– mopsled, Commented Aug 2, 2011 at 14:48
addObject will increase the retain count. What kind of object is txtvwEmail.text? — Sam
– Sam, Commented Aug 2, 2011 at 14:48
i am adding the text from txtvwEmail.text in the Array pastUrls but after adding the next text it remove the first text — Rupesh
– Rupesh, Commented Aug 2, 2011 at 14:49
Have you tried casting txtvwEMail.text to an local NSString variable (ie, NSString* emailString = [NSString stringWithFormat:@"%@", txtvwEmail.text]) and then [pastUrls addObject:emailString];? stringWithFormat is an autoreleased helper, so there shouldn't be any issues with memory leaks there. — xianritchie
– xianritchie, Commented Aug 2, 2011 at 15:03
What count? You mean the number of objects in the array? How are you determining the count? [array count]? — Chuck
– Chuck, Commented Aug 2, 2011 at 15:18

Gobra · Accepted Answer · 2011-08-02 14:49:31Z

2

You should rely on the basics of the language and frameworks. The array DOES RETAIN the object, however, it could be:

pastUrls is nil -> no retain
somewhere in the code .text is released (or autoreleased) and the count is yet the same

Also, you can't really be sure [obj retainCount] return the correct value. To diagnose the real problem, revise the code or post it here so we can help.

answered Aug 2, 2011 at 14:49

Gobra

4,3592 gold badges17 silver badges20 bronze badges

Sign up to request clarification or add additional context in comments.

Comments

Bushra Shahid · Accepted Answer · 2011-08-03 09:17:26Z

1

//this should be outside of ur all loops
NSMutableArray *pastUrls=[[NSMutableArray alloc]init];

//remove this line
//NSMutableArray *pastUrls=[NSMutableArray array];

if (![pastUrls containsObject:txtvwEmail.text]) {
    [pastUrls addObject:txtvwEmail.text];
}

NSLog(@"pastUrls : %@ \n\n",pastUrls);

edited Aug 3, 2011 at 9:17

Bushra Shahid

3,5751 gold badge29 silver badges37 bronze badges

answered Aug 2, 2011 at 14:51

Vijay-Apple-Dev.blogspot.com

25.7k7 gold badges69 silver badges76 bronze badges

Collectives™ on Stack Overflow

NSMutable array, do not retain the added object

2 Answers 2

Comments

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

2 Answers 2

Comments

Comments

Your Answer

Sign up or log in

Post as a guest

Related