Question

I have one more hypothetical question.

I create function:

-(IBAction)text:(id)sender{
    UITextView * textview = [[UITextView alloc]initWithFrame:CGRectZero];
}

and because I use ARC I expected that object would be released when function goes out of scope .
But with Instrument I detected that memory is not freed.

Have anyone idea why?

Answer 1

ARC will autorelease/release the textView wether it is nil or not

---

wrap it all in a @autoreleasepool to do so!

-(IBAction)text:(id)sender{
   @autoreleasepool {
        UITextView * textview = [[UITextView alloc]initWithFrame:CGRectZero];
    }
}

---

As for the initial grow when the textview is used the first time: the cocoa touch text system is allocated. (The underlying ‘engine’ that all textviews share)