received memory warning. level 1

Question

I am new to iPhone development. I am creating an application in which i need to create buttons and labels programmatically.
So I am doing this in .h file

Answer 1

Since you alloced memory, you need to release it as well. Anytime you use alloc, copy or new, remember to always release. Its not a good idea to release everything only at dealloc. Release objects when you are done with them. For example:

 setchallange = [[NSString alloc] initWithFormat:@"%@" , challange];//Memory leak here
 Challengetext.text = setchallange;
 [setchallange release]

Also checkout out the iOS memory management guide. I'm sure it will help.

Answer 2

You're creating a new string with every call to setchallenge = [[NSString alloc]....

Should be:

//For Challenge Text
NSString *challange = [theQuiz objectAtIndex:row+8];
Challengetext.text = [NSString stringWithFormat:@"%@" , challange];

stringWithFormat returns an auto-released string, which will get deallocated next time the auto-release pool is drained.

joe

Answer 3

May be for some object you allocating more than one times and release it once. just check it out I hope it will be solve.